Most codes use empirical methods based on experimental verification to check against punching shear failures. fINTRODUCTION Shear walls are vertical elements of the horizontal force resisting system. 3999 Members 14020 Downloads 6557 Comments. 2, nominal shear strength is the summation of shear strength from the masonry and shear strength from the shear reinforcement. The lower level containing the concrete columns behaved as a soft story in that the columns were unable to provide adequate shear resistance during the earthquake. Load sharing of shear wall: The load attracted to each component (shear wall, core, frame) is a function of position and relative stiffness. Maximum Shear Stress Criterion or Tresca's Yield Criterion (Blue Regoin is Safe) The maximum shear stress assumes failure occurs when the maximum shear stress exceeds the shear stress in a simple uniaxial test. Also due to increase in the transportation and. It deduced that the vulnerability would increase with the impact pressure and maximum bending moment of each building. The shear force that is resisted by shear reinforcements is Vs = (Vu - f V c). Earthquake force acts in both directions. Column slenderness computation and evaluation using finite element method and commercial software Mohammad I. 667700000002 21519. Winner of the Standing Ovation Award for "Best PowerPoint Templates" from Presentations Magazine. The provisions in EN 1992-1-1 introduce a multiplier, (3, to increase the average shear stress around the perimeter such that D6. Also, the design manual for. Eurocode 8-2004. Diaphragm Shear Strength Failure. connections always possess a problem. The load was designed to show a shear failure. Modelling The analysis of the structure was carried out using the ETABS software package. Load sharing of shear wall: The load attracted to each component (shear wall, core, frame) is a function of position and relative stiffness. 75 ×C u), then IBC permits calculating the story-drift using the larger T obtained from ETABS. Diaphragm. The graphical interface of ETABS makes this a quick and easy task. The two analysis differ in a sense that NLS-01 was without considering shear wall and NLS-02 was with shear wall. The spectrum must be converted to the specific set of units used throughout the model by applying a scale factor given as the value of gravity acceleration in the…. The inline friction damper's slip load remains symmetric in tension and compression (hence the name Ten-Co), and has a high initial stiffness and is independent of displacement. Swd-aci-530-11. In this kind of failure the member is yielded first, then the necking phase comes into the picture and then it fails at the reduced cross section. A suggested pier labeling scheme for walls with openings is given in Figure 1: Additional information is available through Help > Documentation > Shear Wall Design > General Design Information. Design of steel and concrete frames (with automated optimiz ation), composite beams, composite columns, steel joists, and concrete and masonry shear walls is included, as is the capacity. Catenary Analysis. Basement level is surrounded with shear walls and there is also a core shear wall in the structure. Besides, while beam component bearing large shear, shear hinge can be added to simulate nonlinear shear deformation and shear failure of beam with assembling sections. In conventional concrete-encased steel composite columns, a steel section is placed at the center of the cross section. Although the material cost of the components in the connection (the plates, the bolts etc) may not be significant, moment-resisting joints generally involve more welding than other connections. Compared to other methods such as shear wall, braced frame is more economical, easy to erect, less bulky. Abstract Reinforced concrete buildings are typically braced with shear walls positioned around lift shafts and stairs. u = the length of the perimeter. Punching Shear-Design. As shear walls act primarily as cantilevers they have three basic failure modes. Attending Design Review. o/c are carrying the loads shown below. The SAFE program is provided to students keen on gaining in-depth knowledge on concrete flooring foundation structures. The ETABS programs were the first to take into account the unique properties inherent in a mathematical model of a building, allowing a computer representation to be constructed in the same fashion as a real building: floor by floor, story by story. Eurocode 2-2004. 12842 Revit Structure member families are now comprehensively supported, subject to user control, when transferring data to and from ETABS 13411 Comprehensive, two-way mapping of. Punching shear occurs if a concentrated force on a slab induces a shear failure cone that "punches" through. The shear wall IT will consider the effects of external loads (gravity as well as lateral) on shear walls of concrete, steel, masonry, and wood. Shear Wall Failure Modes. The joint should be Constructible: Congestion of reinforcement is the main concern. Computers and Structures, Inc. Learn how to design buildings using ETABS: - Finite element concept - Reinforced concrete knowledge - 3D structural modeling of buildings - codes & standards - combinations - Structural failure modes - structural cracks, and material cracks - lateral force resisting systems knowledge - shear wall system, framing system & dual system analysis. In structural engineering, a shear wall is a vertical element of a seismic force resisting system that is designed to resist in-plane lateral forces, typically wind and seismic loads. Check for ETABS. - Assisted Engineering Manager in Designing to Value. Diaphragms are typically horizontal, but can be sloped such as in a gable roof on a wood structure or concrete ramp in a parking garage. The innovative and revolutionary new ETABS is the ultimate integrated software package for the structural analysis and design of buildings. These software's show the displacement level and corresponding base shear where first yield in the structure occurs. Shear Wall Analysis and Design Optimization In Case of High Rise Buildings Using Etabs (software) M. The load was designed to show a shear failure. • Provision of shear walls may not effective in reducing punching shear on intermediate storey's but effective in top and bottom storey's as shear wall attracts lateral moments from columns. Engineered a successful design using 3D modeling software ETABS as per the requirement of NBCC 2010 2. While damage and collapse due to soft story are most often observed in buildings. In other words, Shear walls are vertical elements of the horizontal force resisting system. Collapse slump: In this case, fresh concrete collapses completely. Base shear, storey displacement, storey moments and axial force on column is calculated and compared between different zones with and without P-delta effects. 75 (for shear force in the shear wall only). This is under user control. c) This multi-floor parking garage collapsed like a stack of cards while some of the neighbouring buildings remained undamaged. 1 64 bit - Konversi SAP2000 to ETABS. There certainly has been no other single. It should be noted that concrete shear capacity is found sufficient to resist the shear forces due to imposed deformations by applied seismic forces. The basic perimeter, u 1 is at 2d eff from the column. This is under user control. Shear Wall Design Enhancements Implemented * Incident Description 78995 An enhancement has been made in the Eurocode 2-2004 shear wall design report to report the wall. Civilax based to server in Civil Engineering provides ETABS and SAP2000 Tutorials, Civil Engineering Spreadsheets, Civil Engineering e-books and Many more Civil Engineering Downloads. In this kind of failure the member is yielded first, then the necking phase comes into the picture and then it fails at the reduced cross section. Besides, while beam component bearing large shear, shear hinge can be added to simulate nonlinear shear deformation and shear failure of beam with assembling sections. ISO ETA122815M44 Rev. In the moment curvature curve, the. In the present paper, nonlinear time history and response spectrum analyses were carried out using Etabs-2015 software to study the influence of soil condition beneath the isolated base. Shear Force (KN) ETABS-Vy PERFROM-Vy-10 0 40 50 60 70 80 90 100-300,000 -200,000 -100,000 0 100,000 200,000 300,000 m) Shear Force (KN) ETABS-Vy PERFROM-Vy Comparison of Story Shear in Y Direction between PERFORM 3D and ETABS 2015 Before Scaling After Scaling. The proportions of the beam, support conditions and the way the load is applied are all factors, which affect failure by lateral torsional buckling. Significant enhancements include: Concrete frame design and shear wall design using the AS 3600-09/NZS 3101-06 codes have been updated for Amendment No. 23: Shear wall failure in Nepal (Google 2015) Figure 2. shear span ratio and with low or without axial load ratio. Course Duration: 1 Month (5 Days a Week Classes). Description of the Selected building Project It has established a regular structure that is assumed will use commercial center, which consists of 6 levels, from the roof of the top floor of any exclusive use. The mode of failure for the cyclic shear specimens was due to sudden crushing and spalling of the dry pack grout, indicated by the significant reduction in the thickness of the grout. After the first run, check the base shear which develops in the model, and if this value is less than the code-prescribed minimum, then increase the scale factor of the first run such that the resultant base shear matches the code specification. Punching Shear-Design. Pro model for AISC 360-10 verification example. Concrete Beam Calculator Excel. And considering soil type II. ETABS, FRP laminates, strengthening INTRODUCTION: Progressive collapse is the collapse of all or a large part of a structure precipitated by a damage or a failure of a small part of it. parallel to the plane of the wall. Sandeep Pingale. longitudinal shear within web and between web and flanges and (d) transfer beam torsion design. The ETABS programs were the first to take into account the unique properties inherent in a mathematical model of a building, allowing a computer representation to be constructed in the same fashion as a real building: floor by floor, story by story. Check out #Ansys statistics, images, videos on Instagram: latest posts and popular posts about #Ansys. Check out #IDEAStatiCa statistics, images, videos on Instagram: latest posts and popular posts about #IDEAStatiCa. Konstanta Spring (Ks) untuk Pasir. Compared to other methods such as shear wall, braced frame is more economical, easy to erect, less bulky. Base shear in kN ETABS SAP2000 1 27086. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. BUT - slight complication - there's a force acting at point B, are you going to include it? The answer is both yes and no. In a unixial test, the principal stresses are σ 1 = σ x (axial direction) and σ 2 = 0 (transverse to axial direction). The model can support any shape of failure criteria. Shear failure can be easily determined by checking out the excessive deflection or development of cracks, which gives an advance warning about the probable occurrence of shear failure. Shear Failure. Although Table 1is for particular values ofmaterial strengths and sectional properties, it can beusedin any initial trial calculation, for other values ofthese also. RE: beam and column failure in etabs Agent666 (Structural) 23 Apr 14 05:52 I am guessing that you are exceeding the maximum Shear stress/force allowable by your selected concrete code. The shear failure is difficult to predict accurately despite extensive experimental research. It is shown by the grey area in the picture above. Shear walls are constructed to counter the effects of lateral loads acting on a structure. o/c are carrying the loads shown below. Diagonal cracks are the main mode of shear failure in reinforced concrete beams located near the supports and caused by excess applied shear forces. Also in these specimens the percentage of longitudinal and cross bars are used quite a lot. Check out #Ansys statistics, images, videos on Instagram: latest posts and popular posts about #Ansys. Or putting it in another way, a failure in shear either one way or punching in nature will almost always guarantee a change in size. Seismic Shear Failure Analysis of a RC T-wall using the simplified Beam-Truss-Model in ETABS در این فیلم کوتاه نحوه آنالیز شکست برشی یک دیوار بتن مسلح تی شکل با استفاده از مدل ایتبز خرپا- تیر را خواهید دید. Pushover analysis features in ETABS include the implementation of FEMA 356 and the hinge and fiber hinge option based on stress-strain. Flat plate construction is mainly used as the vertical load carrying system in structures where shear wall is responsible for lateral capacity of structures. Etabs - 21 performance - Based design - Watch & learn. For model 2 storey drift is reduced by 60% and 30% in X & Y directions respectively. Comparison of design results of a Structure designed using STAAD and ETABS Software Prashanth. For all elements the results obtained from software differed significantly from the results obtained through manual calculations using Kani’s method. For an axial load then, the failure shear stress will be equal to the failure normal stress or yield stress divided by two, or in this case the normal yield stress for steel, is equal to 36 ksi, so the shear failure stress is 18 ksi. Figure 4 indicates a typical shear-bond failure showing cracking and the associated end slip. For slender walls where the bending deformation is more, Shear wall resists the loads due to Cantilever Action. You need to take 2 measurements. Also design code does not permit shear failure. 3 Enhancements. Chaitanya and Lute (2013) - They have studied the G+11 storey residential building with precast reinforced concrete load bearing wall. This is a "deep" step for me, this test belongs. Prepared a technical report that 1. 3 Swedish recommendations 24 4 NON-LINEAR FE ANALYSIS 26 4. Why punching shear and is it really THAT important? One-way and two-way (punching) shear are inductile types of behavior unlike bending that is capable of redistribution after cracking. In structural engineering, a shear wall is a vertical element of a seismic force resisting system that is designed to resist in-plane lateral forces, typically wind and seismic loads. ETABS is an engineering software product that caters to multi-story building analysis and design. 22: Types of shear walls failure (Russel 2015) P a g e 55 Chapter 2: Concrete design Capstone B Figure 2. Ninad has 3 jobs listed on their profile. So never,…. The shear wall element is. Winner of the Standing Ovation Award for "Best PowerPoint Templates" from Presentations Magazine. Shear Wall Design Enhancements Implemented * Incident Description 78995 An enhancement has been made in the Eurocode 2-2004 shear wall design report to report the wall. Shear walls of varying cross sections i. Seismic Analysis of open Soft Storey Building for Different Models. This paper describes a theory, according to which the shear failure of reinforced concrete deep beams under two-point or a single-point loading, with a shear span to effective depth ratio (a / d) between 1. 1 64 bit - Konversi SAP2000 to ETABS. by any brittle mode of failure and providing surplus shear strength only a step out of it. ETABS Shear Wall Design, General Reinforcing, Shear Wall Design, Simplified C&T, Uniform Reinforcing One of the useful tools in ETABS program is the Shear Wall Design capability. Flat plate construction is mainly used as the vertical load carrying system in structures where shear wall is responsible for lateral capacity of structures. How to Model Cracked Behaviour of Shear Walls in ETABS. Causes of failure of pile foundation are given below. The storey shear and base shear obtained by the end of the analysis in the software is compared with the values obtained by manual calculation and table it is seen that the ETABS software values of base shear and storey. Short beams without any stirrups fail in either shear-tension (i. We run the design in ETABS and I stupidly decided at that moment that I’ll commit to this wall thickness to which I did. CSI ETABS v18. Calculation Example - Determine the magnitudes of F1,F2. But let me make a point over here. 23: Shear wall failure in Nepal (Google 2015) Figure 2. 66 m (89 3 129) shear wall conﬁgurations, which included a variety of opening types and sizes. 3 Enhancements. In other words, Shear walls are vertical elements of the horizontal force resisting system. NPTEL provides E-learning through online Web and Video courses various streams. ETABS, SAP2000 and SEISMOSTRUCT can be used to perform the non-linear static analysis. c) This multi-floor parking garage collapsed like a stack of cards while some of the neighbouring buildings remained undamaged. Class Timings: Timings will be decided as per students' availability. Click on the link to read the full article. Attending Design Review. Proudly developed in the United States of America December 2015. A wise structural designer never choose the place of braces by chance. Failure occurs by a combination of lateral deflection and twist. converted directly into ETABS models or used as templates onto which ETABS objects may be overlaid. In interior wall joints, reduced number of reinforcement loops are provided per storey height since the shear demand is less. In ETABS video coarse we have covered many tips and hint related to different part of the buildings including shear walls. Also design code does not permit shear failure. Eurocode 8-2004. 25: shear failure in shear walls. A 3-D analysis of the frame structure with shear wall structure using ETABS for of building, located in 70 story seismic zone III as per IS 1893-2016 (Part2) has been carried out. Some structures may require coupled shear walls, where girders and the floor system join the two or more walls together as a coupled system to provide morestiffness. Introduction One of the emerging fields in seismic design of structures is the Performance Based Design. 1 Failure criteria 15 3. • Wall shear failure, diaphragm failure and foundation failure should be avoided. Ninad has 3 jobs listed on their profile. The concrete slump can be classified according to the nature of concrete fall. Dear all Wat is the reason of failure of columns and beams in Shear in etabs? When I was using default design combos everything was okay but when I used Strength design combos for gravity and seismic only I. 0 Proudly developed in the United States of America December 2015. Hossain, Tahsin R. The effects of soil flexibility are considered in the current study to examine the differences in spectral acceleration, base shear, story displacements, story drifts and story shear obtained following the. Shear with & without columns. Eurocode 2-2004. Typically, design codes are based on one specific set of units. The building is 3X3 bays residential building, located in Dhaka. ) Each component in the connection, the bolts, welds and plate, must be designed to resist either shear or a combination of shear. Note: For simplified design only, if there is a flexural failure in any design load combination, the program sets As in Equation 1 to zero for all design load combinations considered for the pier. !! Your structure is up. Class Timings: Timings will be decided as per students' availability. shear keys per storey height. In punching shear considerations, there are actually two checks to consider in the design of pile caps. In connection with #3, Static Base Shear will also be affected, and we know that the succeeding structural analysis will depend on this. In this case, extra plywood sheet is arranged at the center of normal plywood wall and series of pairs of studs are positioned on the both sides of mid-ply. Shear Wall Design Manual. Pro model for AISC 360-10 verification example. However, ETABS allows plastic hinging during "Gravity" pushover analysis. The BC is 2tsf. , punching failure), ETABS will design punching shear reinforcement. DESIGN SHEAR FOR BEAM COLUMN JOINT The design shear for beam-column joint depends upon the relative strength of beam and column at the joint. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. - Coordination with Client, Architect and Site. Column slenderness computation and evaluation using finite element method and commercial software Mohammad I. Importance factor (I) is 1. Aside from flexural checks, one of the most important points to consider in the design of the pile cap is the Punching Shear Checks. So never,…. 500 MPa Reduction due to stud height Short stud Long stud 4 0,8 d2 PRk fu PRk d fck Ecm 0,29 2 0,2 1 d h 1,0 3 4 d h d h 4. The beams are ASTM A992 and are unshored. Steel is a ductile material and to build a structure using steel is like setting up a huge Jigsaw puzzle. When drawing walls in ETABS, the default is to have the 1 axis horizontal and the 2 axis vertical. UCSD wall Elastic ETABS model-10000-8000-6000. Design and detailing provisions on beam-column joints in IS 13920 : 1993 do not adequately address prevention of anchorage and shear failure in this region during severe earthquake shaking. How to Model Cracked Behaviour of Shear Walls in ETABS. diameter piles and a service load capacity of 50 tons each. Shear walls are constructed to counter the effects of lateral loads acting on a structure. One is the punching shear strength of pile cap due to the concentered load of the column and the other is the shear strength of pile caps due to the reactions of a pile or group of piles. Note: The shear area of concrete is entered as input to some computer programs when the analysis is required to take into account the deformations due to shear. Because the wall on the left does not extend the full depth of the diaphragm, collector elements are needed to collect the shear from the diaphragm and to transfer it. Vertical transfer of load from slab to walls leads to a concentration of shear. Shear and moment are very closely related to each other. Mosoarca, did theoretical and experimental study on failure modes of three types of reinforced concrete shear walls with staggered openings and compared results with results of walls with vertical ordered openings. Dead load of building will be taken care of ETABS software itself. We run the design in ETABS and I stupidly decided at that moment that I’ll commit to this wall thickness to which I did. Note: For simplified design only, if there is a flexural failure in any design load combination, the program sets As in Equation 1 to zero for all design load combinations considered for the pier. Punching shear is one particular failure mode recognized by design codes for which an elastic plate bending analysis may not provide adequate stress distribution. The same is true for the Fagure type buildings in Romania after the 977, 986, and 990 earthquakes. 3 Enhancements. There are 3 types of the slump. From the 2002 MSJC Code, Section 3. SAP 2000 and ETABS Training Course is designed for beginners and fresh graduates in Peshawar Pakistan. When the total shear force exceeds the shear resistance of the slab, the slab will be pushed down around the column is termed as punching shear in flat slabs. Illustrated in Figure 1 is a diaphragm with an LFRS consisting of structural walls and collector elements. Typically, design codes are based on one specific set of units. While damage and collapse due to soft story are most often observed in buildings. Flexural and axial behaviors for shell wall elements can be modified in ETABS by using either f11 or f22 property modifiers, depending on the orientation of your local axes. Some structures may require coupled shear walls, where girders and the floor system join the two or more walls together as a coupled system to provide morestiffness. 1)Create the basic computer model (without the pushover data) in the usual manual. A complete design should address each of these modes of failure where appropriate. Wall piers are always associated with the story level directly above them. slab shear reinforcement adjacent to the column to enhance slab shear strength. One of that modification factor is Torsional constant modification factor. beam-column joints in seismic regions Beam-column joint is an important part of a reinforced concrete moment resisting frame subjected to earthquake loading. Shear and moment are very closely related to each other. Introduction One of the emerging fields in seismic design of structures is the Performance Based Design. REFERENCES: 1. Base floor area is 172 m2 and there are 21 columns in each story. Design Manual to BS8110 Designing to BS8110 -Information required If you would like the punching shear specialists at LinkStudPSR to produce an accurate calculation using the LinkStudPSR design programme, please copy and complete the pro-forma at the back of this manual and Fax to 08456 528 528 or forward it to [email protected] Diagonal cracks are the main mode of shear failure in reinforced concrete beams located near the supports and caused by excess applied shear forces. 2 Punching shear failure 17 3. 5, is due to a crushing of concrete in a compression zone with a restricted depth above the tip of the critical diagonal crack. - ETABS Analysis, Foundation Design using SAFE, Column and Shear Wall Schedule, Beam and Slab Detailing, Staircase Design, Overhead Water Tank Design. necessary to study the effect of shear wall for various parameters such as Deflection, Bending Moments and Shear Force. But let me make a point over here. Greater mass generates greater lateral forces, thereby increasing the possibility of columns being displaced, out of plumb, and/or buckling under vertical load (P. parallel to the plane of the wall. 3 Failure by local buckling of a flange in compression or web due to shear or web under compression due to concentrated loads. Blt Carbon Steel Bolts - Normal strength (A307) Bolts g( ) Similar to ordinary machine bolts Lower Strength, low load/shear connectors HighStrengthBoltsHigh Strength Bolts -(A325A325MA490A490Metc)(A325, A325M, A490, A490M etc. (11-10) and (11-12) to evaluate the shear strength of hollow-core slabs with depths of. Structural rehabilitation of columns with reinforced concrete jacketing ESJu´lio1, F Branco2 and V D Silva1 1 FCTUC, Coimbra, Portugal 2 IST, Lisboa, Portugal Summary Strengthening and rehabilitation by reinforced concrete jacketing of columns is assessed,. Prepared a technical report that 1. 5, Response Reduction factor (R ) is 5. 5KN, which is acted at top floor of the building. Relevant STAAD. Different cases of shear wall positions for buildings of different heights and different plans have been analyzed. Mid-Ply Shear Wall. Assigning Pier and Spandrel Labeling in ETABS Wall piers are typically assigned in the model to the wall over height of floor (as in Figure d below). In order to simplify the analysis and to be able to use the superposition principle for evaluating the effect of load combinations, linear analysis is generally adopted even though concrete slabs normally have a pronounced non-linear response. Seismic analysis of RC frames with linear and stepped that controls the seismic response close to failure. Shear failure of bolts 1. Each option has its own advantages and drawbacks. 5 (ACI, 2005). Picked By UmarMakhzumiJuly 3. It is seen that although δ is greater than δo, in this case, the magnified moment considering the P-δ effects need not be greater than the end moments Mo. Local shear failure is accompanied by large strain (> 10 to 20%) in a soil with considerably low ( <28o) and low N (N < 5) having low relative density (I D > 20%). Typically, design codes are based on one specific set of units. The mode of failure for the cyclic shear specimens was due to sudden crushing and spalling of the dry pack grout, indicated by the significant reduction in the ETABS is used to analyze the shear wall structure of G+11 precast load bearing wall structure considering the. std file) can be downloaded from the following link: STAAD. Maximum Shear force is 93. In interior wall joints, reduced number of reinforcement loops are provided per storey height since the shear demand is less. This applies to theModel Role, Commodity number,Pre-defined remark and Free remark values and for their corresponding check boxes. Steel failure Concrete failure fu ultimate strength of material of studs, max. Keywords : Shear Wall, Seismic Analysis, Response Spectrum, Etabs, Rigidity factor, Shear center, Shear force, Bending moment. Also shear wall was proved to be effective and economical at adequate locations only. Importance factor (I) is 1. For slender walls where the bending deformation is more, Shear wall resists the loads due to Cantilever Action. Shear failure can be easily determined by checking out the excessive deflection or development of cracks, which gives an advance warning about the probable occurrence of shear failure. Shear failure mechanism in concrete beams Marta Słowik* Lublin University of Technology, Nadbystrzycka 40, Lublin 20 -618, Poland Abstract The aim of the paper is to investigate the shear failure mechanism and shear capacity in longitudinally reinforced concrete beams without transverse reinforcement. 3, CISC Handbook Heat treated for greater strength HighershearresistanceHigher shear resistance Can also be used in Friction Connections. Description. The stiffness of the shear wall, just like its strength, depends on the combined stiffness of its components. 12842 Revit Structure member families are now comprehensively supported, subject to user control, when transferring data to and from ETABS 13411 Comprehensive, two-way mapping of. 24: flexural shear wall failure (Google 2015) P a g e 56 Chapter 2: Concrete design Capstone B Figure 2. In the moment curvature curve, the. Alas, the building is pretty much screwed. com Page | 21 15) M. Shear induced due to Sway action is calculated as per IS 13920. 22: Types of shear walls failure (Russel 2015) P a g e 55 Chapter 2: Concrete design Capstone B Figure 2. When a reinforced concrete beam fails in yielding of steel, the failure is ductile because the steel can stretch for a long period of time before it actually breaks. 0E and then enveloped them then above mentioned condition is faced. This TEK is intended only to provide a general review of the pertinent allowable stress design criteria. The type of failure depends upon the material properties and stress state induced in the panel (Zhang (2006)). ETABS caters to understanding effective multi-story building analysis and design. These software’s show the displacement level and corresponding base shear where first yield in the structure occurs. These are: True slump: In a true slump concrete just subsides shortly and more or less maintain the mould shape. Earthquake force acts in both directions. The finite element based software, ETABS (version 9. Calculation Example - Allowable shear force for the girder. 2 If the stress-strain curve of short piece of the given member is of the shape of (a) below, as it would be for reinforced concrete columns, Et is equal to Young's modulus, provided the buckling stress Pc/A is below the proportional limit fp. "Structural Engineering Forum of India, - SEFI - is a forum that enables and supports interaction among Structural Engineers and addresses the issues that concern them. Mid-Ply Shear Wall. Hossain, Tahsin R. They are to be force controlled components. The shear force that is resisted by shear reinforcements is Vs = (Vu - f V c). Base shear, storey displacement, storey moments and axial force on column is calculated and compared between different zones with and without P-delta effects. Design and detailing provisions on beam-column joints in IS 13920 : 1993 do not adequately address prevention of anchorage and shear failure in this region during severe earthquake shaking. 6) has been used for determining the moment at different area objects due to the lateral load and Simpson’s one-third rule has been used to calculate the line moment from mesh area. Failure in Tension This failure occurs when you stretch a material bit too far. level, and deflection at which failure occurs. For an axial load then, the failure shear stress will be equal to the failure normal stress or yield stress divided by two, or in this case the normal yield stress for steel, is equal to 36 ksi, so the shear failure stress is 18 ksi. The shear wall IT will consider the effects of external loads (gravity as well as lateral) on shear walls of concrete, steel, masonry, and wood. ETABS, SAP2000 and SEISMOSTRUCT can be used to perform the non-linear static analysis. •Important first step is to define a coupled shear wall. Analyze and design any kind of civil engineering structure using ETABS. The responsibility includes designing of podium floors in SAFE and progressive failure analysis of the entire building with ETABs, design of fencing walls around the entire plot and slenderness check for the helipad columns. ETABS 2013 13. Alas, the building is pretty much screwed. Often, it is more appropriate to assign the pier to the height of wall adjacent to opening (Figure a or c), resulting in better calculations of shear/moments from the area object directly above. A biaxial interaction rule for both axial force – bending moment and axial force – shear force are considered. i changed the sections of many columns these then became OK by some were fail in Shear still. Column slenderness computation and evaluation using finite element method and commercial software Mohammad I. Course Duration: 1 Month (5 Days a Week Classes). 2 Failure in slabs due to shear 13 2. Design the pile cap shown in the following figure with 12 in. Shear Wall Design Manual. parallel to the plane of the wall. Proper designing, cannot guarantee the safety of the building if construction process is not carried out properly. 60 and fineness modulus was 2. ISO ETA122815M38 Rev. Seismic loads are defined in ETABS for zone V. Seismic Shear Failure Analysis of a RC T-wall using the simplified Beam-Truss-Model in ETABS در این فیلم کوتاه نحوه آنالیز شکست برشی یک دیوار بتن مسلح تی شکل با استفاده از مدل ایتبز خرپا- تیر را خواهید دید. Test shows that the precast system has a stable energy dissipation capacity and a satisfactory seismic ductility with minimum average ductility factor of 4. Preventing Shear Failure RUTHERFORD & CHEKENE 0 50 100 150 200 250 300 350 400 450 500 0 5000 10000 15000 20000 25000 30000 35000 Core Shear Force H2 (kips) Building Height (ft) 1. Faculty of Technology, Structural Engineering Department. The first part of the book describes the internal forces imposed on any flexurally bent member, and goes on to describe how these can interact with external loading forces to cause failure. On provision of column drops it’s punching shear stress decreases unto 25%. The graphical interface of ETABS makes this a quick and easy task. See the complete profile on LinkedIn and. spectrum or accelerogram time history. This chapter provides information on mechanisms of shear transfer, influencing parameters, shear failure modes, and various key approaches to analyzing shear behavior. Besides, while beam component bearing large shear, shear hinge can be added to simulate nonlinear shear deformation and shear failure of beam with assembling sections. Note: For a multiple selection of shear studs, changes made for the parameters in the Naming tab are applied to all selected shear studs. principal tensile stress exceeds allowable) or shear-compression (i. ACI 318-14. 0E and then enveloped them then above mentioned condition is faced. 1 Elastic Behaviour 53 3. The finite element based software, ETABS (version 9. The behaviour of combined shear wall and framed structures, Methods of apportioning loads, and; Failure modes of shear walls. Firstly put your piece of paper, so it's JUST before point B: Shear force at B = 10N. After the first run, check the base shear which develops in the model, and if this value is less than the code-prescribed minimum, then increase the scale factor of the first run such that the resultant base shear matches the code specification. Shear Wall Failure Modes. SPD - Wetter for the Army Projects Opening of 'New Model' a) File/new model OR press Ctrl + N, a dialog box will appear. Basement level is surrounded with shear walls and there is also a core shear wall in the structure. etabs shear wall design manual ubc 97 pdf July 29, 2019 posted by admin Results 1 – 13 The computer programs SAP® and ETABS® and all associated This manual describes the details of the shear wall design and stress check CSA A CSA A Indian IS UBC A Shear Wall Design Specific to UBC 9. "Structural Engineering Forum of India, - SEFI - is a forum that enables and supports interaction among Structural Engineers and addresses the issues that concern them. 005300000001 Probability of failure. Shear Wall Design Manual. Earthquake force acts in both directions. Engineered a successful design using 3D modeling software ETABS as per the requirement of NBCC 2010 2. 9 Thermal strain. Beam Design with respect to BS / ACI 4. catastrophic failure. Punching Shear Basics. SHEAR FAILURE SHEAR COMPRESSION BEAM FAILURE. ETABS, SAP2000 and SEISMOSTRUCT can be used to perform the non-linear static analysis. You have 1000 different members and you need to connect them and tada. Prepared a technical report that 1. necessary to study the effect of shear wall for various parameters such as Deflection, Bending Moments and Shear Force. For Response Spectrum Analysis: The spectrum ordinates defined within various code options, including IS:1893, are normalized values in which spectral accelerations are divided by gravity acceleration. Abstract Reinforced concrete buildings are typically braced with shear walls positioned around lift shafts and stairs. There certainly has been no other single. These software’s show the displacement level and corresponding base shear where first yield in the structure occurs. We have one retaining wall failing in in-plane shear due to thermal forces acting on the slab. (1) sufficient shear reinforcement is provided to prevent shear failure (sufficient Vs), and (2) the shear reinforcement is distributed so that at least a sufficient number of bars cross the bottom-half of the shear crack (n bars every d/2). In the present paper, nonlinear time history and response spectrum analyses were carried out using Etabs-2015 software to study the influence of soil condition beneath the isolated base. Shear slump: If one-half of the cone slides down in an inclined plane, it is called a shear slump. its releted to erd-entity relationship diagram. Checking the forces/Reaction with respect the ETABS model and to liaise with Manual calculation. Dead load of building will be taken care of ETABS software itself. 85 tons, which is less than the maximum shear force value of 7890. The use of Eq. Base shear in kN ETABS SAP2000 1 27086. Picked By UmarMakhzumiJuly 3. u = the length of the perimeter. 0E and then enveloped them then above mentioned condition is faced. 3 Enhancements. The inline friction damper's slip load remains symmetric in tension and compression (hence the name Ten-Co), and has a high initial stiffness and is independent of displacement. Description of the Selected building Project It has established a regular structure that is assumed will use commercial center, which consists of 6 levels, from the roof of the top floor of any exclusive use. splitting failure with punching shear failure is more likely in slab with rectangular and square column because of the crack pattern for the main flexural cracks developed directly above the longitudinal reinforcement of all slabs with rectangular and square columns and that led to bond splitting before the punching shear failure. 3 Intermediate shear failures 18 3. Also it is observed that the shear and flexural damages are more critical in short and tall MRF structures, respectively. Etabs concrete-design 1. This type of slump is most desirable. It is shown by the grey area in the picture above. some axial fractures can be observed as well so that the shear failure plane in a shear band with a certain width is formed. One must take proper precautions before designing pile foundations so that the possibility of such failure reduces. Shear failure can be defined as a failure that takes place due to insufficiency of shear resistance available between the materials. Concrete Shear Wall Construction Tunnel-form buildings have been exposed to the two major earthquakes in Turkey (the 1999 Izmit earthquake and the 2003 Bingol earthquake). For better efficiency and economy, particularly under biaxial moment, the steel section needs to be placed at the corners, rather than at the center of the cross section. Significant enhancements include: Concrete frame design and shear wall design using the AS 3600-09/NZS 3101-06 codes have been updated for Amendment No. For all elements the results obtained from software differed significantly from the results obtained through manual calculations using Kani's method. slab shear reinforcement adjacent to the column to enhance slab shear strength. b) Punching Shear Failure in the Main Roof at corner Column. Shear Wall Analysis and Design Optimization In Case of High Rise Buildings Using Etabs (software) M. As we all know, Punching Shear is a concentrated load causing shear stress on the section around the load and this load should be resisted by the structural member from where the concentrated load or the reaction is rested. ) Each component in the connection, the bolts, welds and plate, must be designed to resist either shear or a combination of shear. Then from the shear force, the moment is calculated as shown in Equations (1) and (2). Among three cases of column removal, most lost, next is corner column failure, finally middle column failure. 23: Shear wall failure in Nepal (Google 2015) Figure 2. Diagonal cracks are the main mode of shear failure in reinforced concrete beams located near the supports and caused by excess applied shear forces. A horizontal diaphragm element parallel and in line with the applied force that collects and transfers diaphragm shear forces to the vertical elements of the lateral-force-resisting system and/or distributes forces within the diaphragm. Shear Force (KN) ETABS-Vy PERFROM-Vy-10 0 40 50 60 70 80 90 100-300,000 -200,000 -100,000 0 100,000 200,000 300,000 m) Shear Force (KN) ETABS-Vy PERFROM-Vy Comparison of Story Shear in Y Direction between PERFORM 3D and ETABS 2015 Before Scaling After Scaling. IN ZONE-II ON SLOPING GROUND UP TO FAILURE BY USING ETABS EEMANI VENKATA SRAVANI 1*, PERIKALA RAJESH 2*, Dr. The lower level containing the concrete columns behaved as a soft story in that the columns were unable to provide adequate shear resistance during the earthquake. In tall buildings, shear walls are generally located at the center of the building, normally in the form of core wall system to accommodate the vertical translation system such as. 3999 Members 14020 Downloads 6557 Comments. Shear induced due to Sway action is calculated as per IS 13920. chapter name is database. A suggested pier labeling scheme for walls with openings is given in Figure 1: Additional information is available through Help > Documentation > Shear Wall Design > General Design Information. 5, Response Reduction factor (R ) is 5. Civil & Structural Engineering, Dhaka, Bangladesh. Retrofitting of reinforced concrete beams with multiple shear cracks is not considered an option [1]. A model may be created in either program, transferred to the other program, modified in either program, and transferred back and forth in a continuous iterative loop. a local failure mechanism or, even worse, a storey failure mechanism, which may lead to the collapse of the system, may be formed due to the high level of load. A biaxial interaction rule for both axial force – bending moment and axial force – shear force are considered. Shear Wall Modeling Shexr Etabs. The entire superstructure was modelled primarily using shell elements. Science topics: Engineering Structural Engineering Structural Analysis ETABS. ETABS is an engineering software product that caters to multi-story building analysis and design. You have 1000 different members and you need to connect them and tada. The load was designed to show a shear failure. We are an authorized training center, offering a comprehensive ETABS and SAFE training program in Dubai. Incorporating 40 years of continuous research and development, this latest ETABS offers unmatched 3D object based modeling and visualization tools, blazingly fast linear and nonlinear analytical power. 12 etabs shear wall design manual UBC 97. parallel to the plane of the wall. A careful approach in its design will lead to efficient use of concrete and steel reinforcement. A finite element model (FEM) of frame-shear structure was constructed using OpenSees program based on the nonlinear flexibility theory and multi-vertical-line theory that considered bending-shear coupling, and its progressive collapse resistance under abnormal conditions was analyzed. Of course, In capacity design approach, frame design starts from beam flexure and (then) proceeds to its shear design. Therefore, a stress demand/stress approach is assumed. The SAFE program is provided to students keen on gaining in-depth knowledge on concrete flooring foundation structures. Beam Design with respect to BS / ACI 4. 1 ISO# RELETA1621 2018-01-10 Page 2 of 2 Frame Design Incidents Resolved * Incident Description 95112 An incident for resolved for beams designed as Intermediate Moment Frame (IMF) based on the ACI 318-14, ACI 318-11 and ACI 318-08 design codes where an explicit warning message was not shown. The main output of pushover analysis is in the form of a force- and sudden shear failure of prismatic elements is reduced in RCHBs due to this behaviour. Seismic analysis of RC frames with linear and stepped that controls the seismic response close to failure. K, Arpan Herbert International Journal of Civil and Structural Engineering Volume 2 Issue 3 2012 874 Table 7: Bending Moment and Shear Force of a sample column Loading Forces STAADPro ETABS. Progressive collapse is a catastrophic structural event that occurs when failure of one or more structural member in the structure initiates a chain reaction resulting in partial or total collapse of the structure. Preventing Progressive Collapse in Concrete Buildings Seismic design details are the key to ductility and load transfer rogressive collapse is a chain reaction of failures that propagates throughout a portion of the structure disproportionate to the original local failure. Mid-ply shear wall is an improved version of normal plywood shear wall. shear reinforcement such as a shear stud rail, shear stirrups, shear heads, shear links etc. About ETABS Software. With the added benefits of structural system, shear walls make an excellent choice for resisting lateral loads in concrete buildings. It also shows the sequence of yielding in the structural elements and corresponding displacements and base shears. Shear stresses have been proven essentially uniform across the depth of the diaphragm, rather than showing sig-nificant parabolic distribution as in the web of a beam. K, Arpan Herbert International Journal of Civil and Structural Engineering Volume 2 Issue 3 2012 874 Table 7: Bending Moment and Shear Force of a sample column Loading Forces STAADPro ETABS. Dynamic analysis may include seismic response. Keywords- seismic zones, G+5, lateral loads INTRODUCTION Structures are subjected by gravity and lateral forces. Punching shear occurs if a concentrated force on a slab induces a shear failure cone that "punches" through. Etabs steel design pdfFull description Notes on ERD Design1 its a it project. 4 CONCLUSIONS 1. 1 k/stud and the number of shear studs required is: 2ΣQn = 2(810 k) = 62. 2019-07-24 Building material and Construction (Lecture-2) 2019-02-28 Staad pro RCC Design Step by Step 2019-07-19 Preparation of Gate 2020 civil engineering 2019-06-22 Abacus CAE Tutorial Series|Concrete Beam Analysis 2019-07-21 Building material and Construction (Lecture-1). catastrophic failure. INTRODUCTION The strength capability of aerospace threaded fasteners is typically specified as a minimum tensile strength or minimum double shear strength in either a standard part or procurement speci-fication. punching shear which causes slab-column joint failure and further results in the collapse of the structure, so there is a need to improve flat slab performance. The concrete slump can be classified according to the nature of concrete fall. Typical deformation characteristics of affected buildings, such as bending moment and shear force are simulated using ETABS to determine whether the building will collapse after the impact of the landfill failure. level and the lower level wall piers are associated with the 2nd level. ETABS software for the parameters like storey displacement, storey drift, storey shear, base shear and time period. 25: shear failure in shear walls. The model can support any shape of failure criteria. The main output of pushover analysis is in the form of a force- and sudden shear failure of prismatic elements is reduced in RCHBs due to this behaviour. shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design provisions and AASHTO standard specifi cations. 4 allows to equate the RS-BS to 90% or 100% of ELFP-BS, no matter, whether to increase or decrease. This forum also aims in aiding professionals from allied fields such as architecture, construction, sociology, planning, conservation and disaster mitigation to interact with. The seismic response of building structures can be estimated through utilization of a variety of analysis methods that range from simple equivalent static analysis to complex nonlinear dynamic analysis. 29, Crushed granite metal of maximum size 20 mm. 3, CISC Handbook Heat treated for greater strength HighershearresistanceHigher shear resistance Can also be used in Friction Connections. A Review On Shear Wall In High Rise Buildings www. Shear Wall vs Column. Based on provided flexural capacity of beams, over strength factors can be estimated and then can be used for design of columns. The innovative and revolutionary new ETABS is the ultimate integrated software package for the structural analysis and design of buildings. The entire superstructure was modelled primarily using shell elements. ETABS 2013 13. Shear Wall Design BS 8110-97 Wall Pier Flexural Design Designing a Simplified C & T Pier Section Page 5 of 16 where P is either Pleft-top or Pright-top, Ag = tpB1 and the Pmax Factor is defined in the shear wall design preferences (the default is 0. Different weave geometries tested include an Oxford weave, a 5-harness satin weave, an 8-harness satin weave, and a plain weave with auxiliary warp yarns. Design the pile cap shown in the following figure with 12 in. The present analysis was done by using the software ETABS-2015, because. We are an authorized training center, offering a comprehensive ETABS and SAFE training program in Dubai. SAP 2000 21. 32 COMPUTERS AND STRUCTURES, INC. Most likely location is. We have one retaining wall failing in in-plane shear due to thermal forces acting on the slab. Values ofkl and "-zofa 250 x 500mm reference section. Sandeep Pingale. Now, higher modes in a structure, (If you study thick beam vibrations), leads to significant shear deformations. In ETABS video coarse we have covered many tips and hint related to different part of the buildings including shear walls. Seismic Shear Failure Analysis of a RC T-wall using the simplified Beam-Truss-Model in ETABS در این فیلم کوتاه نحوه آنالیز شکست برشی یک دیوار بتن مسلح تی شکل با استفاده از مدل ایتبز خرپا- تیر را خواهید دید. pdf Download. 1 ISO# RELETA1621 2018-01-10 Page 2 of 2 Frame Design Incidents Resolved * Incident Description 95112 An incident for resolved for beams designed as Intermediate Moment Frame (IMF) based on the ACI 318-14, ACI 318-11 and ACI 318-08 design codes where an explicit warning message was not shown. The final results presented based on distinctive shear and flexural failure modes show that a non-uniform distribution of severe damage in structural height occurs during design level seismic excitations. Gupta and et al. Basement level is surrounded with shear walls and there is also a core shear wall in the structure. Prepared a technical report that 1. Resistance to it has been primarily a concern limited to rare punching. The spectrum must be converted to the specific set of units used throughout the model by applying a scale factor given as the value of gravity acceleration in the…. Diagonal cracks are the main mode of shear failure in reinforced concrete beams located near the supports and caused by excess applied shear forces. The mode of failure for the cyclic shear specimens was due to sudden crushing and spalling of the dry pack grout, indicated by the significant reduction in the ETABS is used to analyze the shear wall structure of G+11 precast load bearing wall structure considering the. #E2 : Note check (a) transfer slab / transferred wall strut and tie truss analogy design for the transferred wall (acting as. shear force and bending moment of beams and columns are comparable in all the cases except for the frame when STAAD Pro, ETABS and SAP-2000 are used. Causes of failure of pile foundation are given below. Modeling tools and templates, code-based load prescriptions, analysis methods and solution techniques, all coordinate with the grid-like geometry unique to this class of structure. The building is 3X3 bays residential building, located in Dhaka. 453 fck b x z (1). CSI ETABS v18. ETABS Shear Wall Design, General Reinforcing, Shear Wall Design, Simplified C&T, Uniform Reinforcing One of the useful tools in ETABS program is the Shear Wall Design capability. If it is larger than fp, buckling occurs in the inelastic range. In ETABS (and other structural analysis softwares), we have a scale factor for scaling the Response Spectrum Base Shear to a factor of ELFP base shear according to several building codes. Or putting it in another way, a failure in shear either one way or punching in nature will almost always guarantee a change in size. 1 k/ft) (40ft) 2 8 = 1020 k-ft Vu = wL 2 = (5. - For longer shear spans in plain concrete beams, cracks due to flexural tensile. The storey shear and base shear obtained by the end of the analysis in the software is compared with the values obtained by manual calculation and table it is seen that the ETABS software values of base shear and storey. Bhuiyan*, failure due to transfer of shear forces and unbalanced moments between slabs and columns in flat plate analyzed with the help of finite element software ETABS 9. The ETABS programs were the first to take into account the unique properties inherent in a mathematical model of a building, allowing a computer representation to be constructed in the same fashion as a real building: floor by floor, story by story. The joint should be Constructible: Congestion of reinforcement is the main concern. ) Yielding of gross area of plate 2. Although generally preceded by flexural failure, punching shear is a brittle failure mode and the risk of progressive collapse requires a higher safety class in structural design. Normally, stirrup is spaced vertically at a spacing, s, for shear reinforcement. 1 Possible modes of failure. Due to high local tensile stresses in the web the "inclined flexural shear cracks" propagate, see Figure, and reduces the capacity of the different possible shear transfer mechanisms. ETABS Shear Wall Design, General Reinforcing, Shear Wall Design, Simplified C&T, Uniform Reinforcing One of the useful tools in ETABS program is the Shear Wall Design capability. The plot shows that the maximum value of base shear force of damped structure is 4436. Column slenderness computation and evaluation using finite element method and commercial software Mohammad I. are applicable. Figure 4 indicates a typical shear-bond failure showing cracking and the associated end slip. Column slenderness computation and evaluation using finite element method and commercial software Mohammad I. The designer can be opted to either use the Reinforcement to Designed or Reinforcement to be checked option. Eurocode 8-2004. Design of steel and concrete frames (with automated optimiz ation), composite beams, composite columns, steel joists, and concrete and masonry shear walls is included, as is the capacity. Otherwise, the allowable stress design provisions between the 2005 and 2008 Building Code Requirements for Masonry Structures are the same. 75 was used assuming only flexural failure of the wall. The same is true for the Fagure type buildings in Romania after the 977, 986, and 990 earthquakes. Shear Wall Failure Modes. Diaphragm Shear Strength Failure. For better efficiency and economy, particularly under biaxial moment, the steel section needs to be placed at the corners, rather than at the center of the cross section. Shear slump indicates lack of cohesion in the concrete mix. The resulting stresses are verified along defined control perimeters around the loaded area. Then from the shear force, the moment is calculated as shown in Equations (1) and (2). Shear Wall vs Column. Shear Wall Design BS 8110-97 Wall Pier Flexural Design Designing a Simplified C & T Pier Section Page 5 of 16 where P is either Pleft-top or Pright-top, Ag = tpB1 and the Pmax Factor is defined in the shear wall design preferences (the default is 0. Also shear wall was proved to be effective and economical at adequate locations only. I mean that if the calculated T by ETABS exceeds the allowed upper limit for time period (C t × H 0. A 3-D analysis of the frame structure with shear wall structure using ETABS for of building, located in 70 story seismic zone III as per IS 1893-2016 (Part2) has been carried out. ETABS, SAP2000 and SEISMOSTRUCT can be used to perform the non-linear static analysis. UTU, Dehradun Etabs, Storey drift. Shear Design Example CEE 3150 – Reinforced Concrete Design – Spring 2004 Design the shear reinforcement for the following beam: f0 c = 4 kip/in2 d0 = 2. - Such a failure is shown in Figs. #E2 : Note check (a) transfer slab / transferred wall strut and tie truss analogy design for the transferred wall (acting as. Flat plate construction is mainly used as the vertical load carrying system in structures where shear wall is responsible for lateral capacity of structures. UTU, Dehradun Etabs, Storey drift. There certainly has been no other single. 1 Possible modes of failure. The proportions of the beam, support conditions and the way the load is applied are all factors, which affect failure by lateral torsional buckling. a) Wall stem structural failure : The wall stem fails in bending. • Punching shear failure occurs, more in flat plate. Finally results of progressive collapse RC modal analysis i. Introduction One of the emerging fields in seismic design of structures is the Performance Based Design. its also helpful in making relationship,in ms access,in oracle,in sqland many moreFull description. To quantify the post-earthquake residual seismic capacity of reinforced concrete (RC) column members, experimental data for 6 column specimens with flexural, flexural-shear and shear failure modes are used to derive residual seismic capacity of damaged RC column members for specified damage states in this work. Proudly developed in the United States of America December 2015. Seismic loads are defined in ETABS for zone V. 3 in 2011 affecting the seismic load combinations. Picked By UmarMakhzumiJuly 3. Although the exact steps you follow may vary, the basic processes should be similar to those described herein. The storey shear and base shear obtained by the end of the analysis in the software is compared with the values obtained by manual calculation and table it is seen that the ETABS software values of base shear and storey. 3 Design for punching shear according to EC2 14 3 LITERATURE REVIEW 15 3. PERU SAI 3* 1. Thus RCDC does not allow to ignore the concrete for shear design. Code Definitions Diaphragm ! Horizontal or slopped system acting to transmit lateral forces to the vertical-resisting elements (IBC Sec. Shear induced due to Sway action is calculated as per IS 13920. Aside from flexural checks, one of the most important points to consider in the design of the pile cap is the Punching Shear Checks. Please contact us for detailed references.