Vertical Earthquake In Etabs

lateral stiffness is less than 70% of the storey above or less INTRODUCTION Earthquake is the most devastating and destructive of all the natural calamities. You can consider the vertical excitation by defining a response spectrum load case and specify U3 (vertical, in contrast to U1 and U2 for horizontal translations) under Load Name. earthquake using ETABS. from KNTU ,IRAN. As per IS 1893(Part-1):2002 for earthquake resistant design of structure, there are two types of irregularities namely 1) Plan Irregularity 2) Vertical Irregularity 1) Plan Irregularity. 8 Richter magnitude event of the Northridge earthquake damaging multistory residential units, parking garages and freeway overpasses. Other minor enhancements. Other references state somewhat different values. In building construction, columns are usually constructed monolithically with beams to form an integral structural frame. For dynamic analysis there is no such provision in ETABS. Seismic design of steel building accordance to Eurocode 3 and 8 Valentinos Neophytou BEng, MSc JULY 2013 -­‐Worked examples - Hand calculations ETABS manual. دارای 5 سال سابقه ی طراحی و. Introduction A column is supposed to be a vertical member starting from foundation level and transferring the load to the ground. Getting Started with ETABS/ Modeling in ETABS/ ETABS ETABS allow the users to. BUILDINGS. keywords : Time Period, storey drifts, Displacements, Storey Shears, Bending Moments and Shear Forces ETABS etc. All analysis is carried out by software ETABS. Each structure must be supported in both directions, so the minimum number of vertical braces is 2 brace in each plane. The response spectrum method (RSM) was introduced in 1932 in the doctoral dissertation of Maurice Anthony Biot at Caltech. ETABS includes complete and detailed steel and concrete design calculations for beams and columns, braces, walls and slabs, the time typically associated with the transfer of data between analysis and design programs has been eliminated. The PGA of each earthquake are 70gal, 220gal, 310gal, 400gal, 510gal and 620gal. The seismic analysis was carried out according to IS 1893 part(1):2002 and seismic zone V has been taken for all the cases. Whenever a structure having different irregularity, it is necessary to analyse the building in various earthquake zones. The figure below illustrates the general arrangement of a typical torsional bracing system for a multi-girder deck. 1 General Figure 4-27. Earthquakes. Earthquake (SLE) and the 2,475-year MCER event. using software ETABS to interpret relation between brace frame and without brace frame aspects. And in most of the cases the vertical component of an ground shaking will. ETABS is an engineering software for analysis and design of multi-storey structure. Each structure must be supported in both directions, so the minimum number of vertical braces is 2 brace in each plane. Lateral Loads Manual. KEYWORDS: Multistory Buildings, Vertical Irregularity, Seismic Analysis, Time History Analysis, Displacement, Base Shear, Stress. 4 is the response spectra of selected earthquakes and code specification. PERFORMANCE-BASED ANALYSIS OF A REINFORCED CONCRETE SHEAR WALL BUILDING Garrett Richard Hagen In this thesis, a special reinforced concrete shear wall building was designed per ASCE 7-05, and then the performance was investigated using the four analysis procedures outlined in ASCE 41-06. A response spectrum is a plot of the peak or steady-state response (displacement, velocity or acceleration) of a series of oscillators of varying natural frequency, that are forced into motion by the same base vibration or shock. Another support must be provided at some point to prevent rotation of the structure. Rajesh Chaturvedi IES IPS Academy, Indore Corresponding Author: *Piyush Mandloi Abstract: Seismic building analysis is one of the research interest now a days, it is because earthquake causes. The investigation of the model is completed by comparable static technique. To compare efficiency of Virtual Outrigger to. The current version of ETABS has both rigid and semirigid diaphragms. Moreover, openings should be. The proposed building was planned as a 6-story. Seismic Base Isolation Technique for Building Earthquake Resistance It is easiest to see the principle at work by referring directly to the most widely used of these advanced techniques, known as base isolation. pressure on its exposed surface area, where as in earthquake design the building is subject to random motion of the ground at its base. What inspires me in the design and construction sector is the chance to create and innovate. Part Time 12 Hours How to Model & Design High Rise Building for Earthquake & Wind Loads (Using Etabs Program) Level 1 from Society of Engineers in Hor Al Anz in Dubai. I am working on model of a 20 strorey Building in Seismic Zone 2. It also include a comparison of different geometry and a parametric study. From many past studies it is clear that effect of earthquake on structure can be minimize by providing shear wall, base isolation etc. An earthquake ground motion has three components resulting in structural loads in the vertical and two horizontal directions. In the present study, effects of the structural irregularity which is produced by the discontinuity of a columns such as floating column, setback column e. Analysis of earthquake resisting building with Shear wall using ETABS Software 1st National Conference on Technology 58 | Page Maulana Mukhtar Ahmed Nadvi Technical Campus (MMANTC), Mansoora, Malegaon Maharashtra, India Fig. Performance Evaluation of Bridge’s Pier Structure During Strong Earthquake based on implementation of Nonlinearity Constitutive Material utilize Finite Element Method approach. دانشگاه صنعتی خواجه نصیرالدین طوسی تهران. While earth- quake acceleration might take place in any direction, the analysis should be performed for the most. earthquake using ETABS. Gopalakrishnan4 1Chief Scientist, 2Director, 3Project Student, CSIR-Structural Engineering Research Centre, Chennai-600113, *[email protected] 3 (m) and the value under the assumption of. 294 (m) = 11. INTRODUCTION Researchers studied for earthquakes since long time and still they earthquakes are unpredicted. Height is more often called altitude to describe a higher distance. ETABS software and successfully verified as per IS 456:2000, Usages of ETABS software minimize the time required for analysis and design and as the 4-storey building has similar floors ETABS is the perfect software which can be adopted for analysis and design. In this lecture , you will learn how to access the best position for vertical bracing. element software call ETABs 15. In building construction, columns are usually constructed monolithically with beams to form an integral structural frame. Calculate Earthquake Forces on Buildings and Structures First step to calculate earthquake loads on structure is to identify the earthquake zone for which structure needs to be designed. Structural engineer & teacher of civil engineering courses. earthquake engineering which is used to understand the response of buildings due to seismic excitations. Earthquake causes shaking of the ground in all three directions - along the two horizontal directions (X and Y, say), and the vertical direction (Z, say) (Figure 3). 2 horizontal alignment 34 4. from the floor system to the vertical elements of the seismic force-resisting system. include vertical ground shaking and the potential for rocking response. 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, sophisticated and comprehensive design capabilities for a wide-range of materials, and insightful graphic displays, reports, and schematic. A single pinned connection is usually not sufficient to make a structure stable. Based on the scope of plan and length of spans the number of braces can be reduced to 3 in total. Tower Design using Etabs: Chapter 1 Modeling & Analysis 2. an earthquake is dependent on its natural period, the seismic force distribution is dependent on the distribution of stiffness and mass along the height. In 2009, Khoshnoudian and Hagdoust [3] showed that the interaction between the stiffness of the two horizontal directions reduces structural shear and base shear, and that vertical component of an earthquake considerably affect lateral responses. Download Book about Internet Must Know. Structural dynamics, therefore, is a type of structural analysis which covers the behaviour of structures subjected to dynamic (actions having high acceleration) loading. The total design lateral force or shear at the base of a structure. ETABS manual - Seismic design of steel buildings according to Eurocode 3 & 8 1. Another support must be provided at some point to prevent rotation of the structure. Sandeep Pingale. A rigid vertical diaphragm that transfer lateral forces (caused by wind, earthquakes, or settlement) to the foundation elements in a direction parallel to their planes. If the equipment is located at a higher floor of a building, then the response spectra for the earthquake motion at that floor are used in the analysis. Create and modify computer models. The direction of the positive local 3 axis is determined from applying the right-hand rule using the directions of the 1 and 2 axes described in the preceding bullets. lateral stiffness is less than 70% of the storey above or less INTRODUCTION Earthquake is the most devastating and destructive of all the natural calamities. ETABS is a completely integrated system. Design for wind forces and earthquake effects are different. extensively in the last few decades with both the earthquake engineering and engineering seismology research focusing primarily on these components to mitigate seismic risk. There are lots of codes available in etabs. An earthquake force can be resolved into three mutually perpendicular directions-the two horizontal directions (x and y) and the vertical direction (z). OBJECTIVES To carryout analysis of a multi-storeyed RC building having vertical mass irregularity. To make the structure earthquake resistant, the provision of lateral force resisting system is essential. All the buildings locationanalysed by ETABS were software of version 9. This earthquake zones are displayed in a map on page - 6 of the code. Easily share your publications and get them in front of Issuu's. Technical Committee BD-006 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change. Bearing capability analysis has been considerably revised for footings with horizontal in addition as vertical masses. Mehta Gujarat State Disaster Management Authority Government of Gujarat Strength Stiffness Deformability H Δ Lateral Deformation Δ Design Lateral Force H Inelastic Energy. The vertical loads increase in direct proportion to the floor area and number of floors. Base shear, storey displacement, story drift is calculated and compared for all models. See more ideas about Diagram, Design of concrete structures and Earthquake engineering. The first step in entering the loads is to define static load cases. RECONFIRMATION NOTICE. keywords : Time Period, storey drifts, Displacements, Storey Shears, Bending Moments and Shear Forces ETABS etc. The construction of shear. were obtained. The push over analysis is a static, nonlinear procedure that can be used to estimate the dynamic needs imposed on a structure by earthquake ground motions. In the present study, effects of the structural irregularity which is produced by the discontinuity of a columns such as floating column, setback column e. 14230 hits SAP2000 v20. ANALYSIS AND DESIGN OF RC TALL BUILDING SUBJECTED TO WIND AND EARTHQUAKE LOADS K. These structures are cast monolithically— that is, beams and columns are cast in a single operation in order to act in unison. 3 vertical alignment 44 4. be integrated with FEM programs such as ETABS, SAP2000, ROBOT Struct and drafting software in CAD and BIM environment. 2 Sds be applied to dead load. دارای 5 سال سابقه ی طراحی و. possible due to unavailability of space, so the only solution is vertical expansion. In seismic design of multistoried building, First we will generate a plan in Auto cad and modelled by manual and in ETABS. regular and vertical irregular structures such as mass, stiffness and geometry irregularity located in moderate zone III. At Imperial, 80 percent of the buildings were damaged to some degree. 3 This example demonstrates the application of the strength design load combinations that involve the seismic load E given in §12. 1 CHAPTER 7 — LOADS 2 3 7. Rigid diaphragms have the faster computational time because it significantly reduces the stiffness matrix of the model. The parameters. The vertical bracing are required to limit the sway deflection in case of seismic and wind loads. 152 Earthquake Resistant Design According To 1997 UBC Major Changes from UBC 1994 (1) Soil Profile Types: The four Site Coefficients S1 to S4 of the UBC 1994, which are independent of the level of ground shaking, were expanded to six soil profile types, which are dependent on the seismic zone factors,. Therefore, site for a building should be carefully chosen. Determine the maximum considered earthquake spectral response accelerations, adjusted for Site Class effects, at short period, SMS, and at 1-second period, SM1, in. earthquakes are plan and vertical irregularities, irregularity in strength and stiffness, mass irregularity, torsional irregularity, plan and vertical geometric irregularities etc. In this lecture , you will learn how to access the best position for vertical bracing. Gopalakrishnan4 1Chief Scientist, 2Director, 3Project Student, CSIR-Structural Engineering Research Centre, Chennai-600113, *[email protected] The design spectrum of the vertical seismic component is given from the same equations that define the horizontal component, with the difference that the ground factor S is considered equal to 1. Enocan has strong belief in the inherent value that sound evaluation, design, and implementation play in the advancement and quality of structure engineering methods. It has been used to create the mathematical model of the Burj Khalifa, currently the world tallest building (gravity, wind and seismic response were all characterized using ETABS®) How to use the software First you have to make the following menu selections in SAP2000 ® to create an seismic isolator like the friction spring is one. Download Book about Internet Must Know. This core collection covers all areas of civil engineering including structures, geotechnics, environment and water resources, construction, transportation and urban development, coasts, oceans, ports, and rivers, architecture, and engineering mechanics. The diaphragm shall be analyzed for the forces in Section 4. Also due to increase in the transportation and. STRUCTURAL DESIGN OF HIGH-RISE BUILDINGS the vertical loads increases with the height of the wind or earthquakes. Tutorial Videos | ETABS Main menu. بستگی به نوع حالت بار قائم زلزله دارد. hazards and therefore, earthquake load is being considered in the design structure stability as a vital effect in this study. Vertical Irregularities. Irregularity (5a) exists if the lateral strength of any story is less than 80% of the strength of the story above. It was observed that the model, which was not considering. ETABS is a powerful structural analysis and design tools for civil engineers. seismic response study of multi-storied reinforced concrete building with fluid viscous dampers Thesis (PDF Available) · January 2017 with 9,840 Reads How we measure 'reads'. 2] requires that a vertical load effect equal to 0. They range from individual houses to very tall skyscrapers. Founded in 1976 by company President Ashraf Habibullah, CSI is recognized worldwide as an innovative leader in the development of software tools for the analysis and design of civil structures. KEYWORDS: Multistory Buildings, Vertical Irregularity, Seismic Analysis, Time History Analysis, Displacement, Base Shear, Stress. Analyses are performed by separately applying the earthquake excitation in the chord, radial and vertical bridge directions as defined in Fig. The representation of a pinned support includes both horizontal and vertical forces. • Modeling and analyzing various types of structures using ETABS, Safe and Sap. More than 250 buildings and bridges are protected from earthquakes by DIS seismic isolators. While earth- quake acceleration might take place in any direction, the analysis should be performed for the most. done on different models of a G+7 storey building, using ETABS software. The local 1-2 plane is vertical. 1 | P a g e ABSTRACT Etabs is an abbreviation for “Extended Three- dimensional Analysis of Building Systems,” it is the main engineering integrated software that is used to analyze and design different structural elements. 14230 hits SAP2000 v20. Providing software solutions for structural and earthquake engineering. The stability of earth is always confused because of the internal forces which cause jerks in the earth's crust called an earthquake. Keywords: Floating column, irregular building, earthquake behavior, composite structure, linear static analysis, ETABS. If you have a significant number of walls, this difference alone can account for more than 5%, particularly for a short structure. The definitions of international codes for different types of vertical irregularity is summarized in Table 1. Analysisof structures involves the use of several codes such as NSCP 2015, ACI318-08/14, ASCE 7,and AASHTO. the building increases deformation due to earthquake load also increases hence it is most important to design structure for earthquake load. Diaphragms are required to be designed as part of the seismic force-resisting system of every new building assigned to. In my own conclusion, this has to be edited manually after you run the auto load combination but I still want to hear how others are dealing with this issue. Based on the shear/core walls and columns modelled, ETABS will compute their respective displacements based on their actual stiffness. regular and vertical irregular structures such as mass, stiffness and geometry irregularity located in moderate zone III. Displacement, Storey Shear, ETABS 2015 (V 15. 2 CROSS TIES: There shall be continuous cross ties between diaphragm chords. He worked as a team leader and successfully presented the capstone project on design of 20 story residential building from planning to the design and detailing, scheduling and cost estimation stages. مهندس محاسب و مدرس دوره های تخصصی مهندسی عمران. After running the analysis i've found that even for pure vertical load cases i am getting lot of shear force (About 2500 kN) in shear walls. Murty Rupen Goswami A. This causes major loss of life with a more casualties. Each structure must be supported in both directions, so the minimum number of vertical braces is 2 brace in each plane. the vertical oscillation. The behavior of a building during earthquakes depends critically on its overall shape, size and geometry, in addition to how the earthquake forces are carried to the ground. Failure of the structure due to vertical irregularity is one of the main reason for the earthquake. Output : Figure 3 shows the lower- half of the earthquake acceleration response spectrum that we will use for the analysis. Over the past few years, India has seen a spurt in the vertical growth of buildings. The first Egyptian official regulation for seismic design was prepared and released by Egyptian Society for Earthquake Engineering (ESEE) in 1988 after few years of establishing ESEE. com civil forum, engineers forum, civil doubts, civil engineering notes, civil engineering ppts, civil engineering seminars, structural engineering ppts, interview questons, multiple choice, objective, GATE preparation, IES coaching. include vertical ground shaking and the potential for rocking response. For a moment frame, the column vertical loads are the resultants of base overturning moment, whereas column moments are resultants of story shear • Thus, use 75% of seismic vertical reactions Foundation Design - 17. This motion causes the structure to vibrate or shake in all three directions; the predominant direction. دانشگاه صنعتی خواجه نصیرالدین طوسی تهران. More than 250 buildings and bridges are protected from earthquakes by DIS seismic isolators. In this study, 3D Analytical model of G+15 storeyed buildings have been generated for vertical mass irregularity. In this study, behaviour of building during earthquake were deliberate by the help of ETABS. Determining the maximum Figure 3-2. Taking a specific project as an object, the application of ABAQUS in seismic analysis of connected structures is presented in detail in this paper. And in most of the cases the vertical component of an ground shaking will. Background and Applications High torsional stiffness w. It is an approach to finding earthquake response of structures using waves or vibrational mode shapes. Subramanian Transverse reinforcements in columns in the form of hoops, cross-ties, or spirals play an important role in safeguarding the columns, especially when they are subjected to strong earthquakes or accidental lateral loads. No Ie, Ip, nor Rho is applied to Ev. 5 natural earthquakes and 2 artificial earthquakes are used in elastic-plastic time history. From its 3D object based graphical modeling environment to the wide variety of analysis and design options completely integrated across one powerful user interface, SAP2000 has proven to be the most integrated, productive and practical general purpose structural program on the market today. The vertical component of the bracing forces due to earthquake causes lateral concentrated load on the beams at the point of connection of the eccentric bracings. Examples on IS 1893(Part 1) IITK-GSDMA-EQ21-V2. Response spectrum. Figure 2 shows the one of the damaged multistory buildings after the 24 October, 1999, 7. Whenever news on earthquake is reported, we have only one question in our mind - Is our home safe during an earthquake?. 2-26 standard for the Seismic Analysis of Safety-Related Nuclear Structures was referenced for defining the combined horizontal and vertical seismic load combinations. RECONFIRMATION NOTICE. دانلود رایگان ویدئو نیروی قائم زلزله به همراه دانلود pdf توضیحات؛ اعمال مولفه قائم زلزله در ایتبس، محاسبه نیروی قائم زلزله مطابق استاندارد2800 واعمال آن در 4 پهنه مختلف لرزه خیزی با حل یک مثال جامع؛ بررسی ترکیبات بار. This concise work provides a general introduction to the design of buildings which must be resistant to the effect of earthquakes. earthquakes without significant structural damage though some non-structural damage may occur; and aims that structures withstand major earthquake without collapse. This weakness arises due to discontinuity in mass, stiffness and geometry of structure. Introduction. • Modeling and analyzing various types of structures using ETABS, Safe and Sap. AliReza Khooyeh, M. Calculate Earthquake Forces on Buildings and Structures First step to calculate earthquake loads on structure is to identify the earthquake zone for which structure needs to be designed. You can use as per your requirement. Structural analysis and design In the developed world, existing buildings and infrastructure constitute by far the preponderance of earthquake risk, so that a major focus of earthquake engineering is on identification, analysis, and mitigation (reduction) of this risk. Finally, an example is provided to demonstrate the application of the manual to seismic evaluation of a concrete gravity dam. Determine the earthquake force on each story in North-South direction. 20 mm and 47. 3 Example 1 Earthquake Load Combinations: Strength Design §12. Two computational models were investigated to find the effect of modelling the vertical joints betwe en the wall panels, on the drifts and the generated forces in the walls. Figure 2 shows the one of the damaged multistory buildings after the 24 October, 1999, 7. Two structural configurations were utilized; vertical irregular model (VIRM), vertical irregular model with mega bracing (VIRM_MB). As per IS 1893(Part-1):2002 for earthquake resistant design of structure, there are two types of irregularities namely 1) Plan Irregularity 2) Vertical Irregularity 1) Plan Irregularity. بستگی به نوع حالت بار قائم زلزله دارد. 1: Story drift caused by lateral loads. After studying Optimization of shear wall ,location shear wall is placed in three. Earthquakes can occur on both land and sea, at any place on the surface of the earth where there is a major B. 05g, the designed earthquake group is the first group, the maximum horizontal seismic coefficient is 0. Design and model vertical structures ranging from low-rise to high-rise using software such as ETABS, SAFE, STAAD. It takes place naturally at or below the surface of the earth. ETABS is an analysis and design software for analyzing and designing a building. ETABS training course in Nepal is the best way for a civil engineer to improve their imminent on managing the Response Spectrum Analysis and Response History Analysis, basic creative measures and Push-over breakdown proficiently. Tier 2 Evaluation Procedure: Out-of-plane forces in accordance with Section 4. Vertical Area Loads in Any Shape or Configuration Cracked Properties — Property Modification Factors Gravity, Pressure and Thermal Loading Loading on Open Structures Sequencing Allowing Adding or Removing Objects/Loads/Supports Buildings with Base Isolation and Inter-story Dampers ETABS is available in two levels: Plus (P) and Nonlinear (N). 3: Plan and 3D view of GFRG. The vertical loads increase in direct proportion to the floor area and number of floors. Tech IT final year projects,B. Ravi Kumar Seismic Analysis of Multi-Storied Building with Shear Walls using ETABS. The local 1-2 plane is vertical. A major part of this design involves the building structure which has a primary role in preventing serious damage or structural collapse. Analysis of earthquake resisting building with Shear wall using ETABS Software 1st National Conference on Technology 58 | Page Maulana Mukhtar Ahmed Nadvi Technical Campus (MMANTC), Mansoora, Malegaon Maharashtra, India Fig. Chuyên mục: CSI ETABS Structural Analysis Building Analysis Steel Design Concrete Design Shearwall Design Dynamic Analysis Computers and Structures Finite Element Analysis Structural Software ETABS 2016 Building Design Performance Based Design Nonlinear Time-History Analysis Response Spectrum Analysis Modal Analysis ETABS 2015 SRSS Modal. Hamza Bukhari is a passionate structural designer who has completed bachelors in civil engineering (high honour). Therefore, it is very important to design the structure to resist moderate to severe earthquakes depending on its site location and importance. The first and more significant difference is that ETABS ignores the seismic mass/weight of the bottom half of vertical elements (walls, columns, and braces) on the lowest level. 0, the behavior factor q is allowed to be considered greater than 1. Height is more often called altitude to describe a higher distance. • DEAD can be used for the beam vertical loads and keep the Self Weight Multiplier as 1. Importance factor (I) is 1. Founded in 1976 by company President Ashraf Habibullah, CSI is recognized worldwide as an innovative leader in the development of software tools for the analysis and design of civil structures. The first part, presents the observed damage of RC buildings in recent earthquakes including local bar buckling and fracture of reinforcing steel, global buckling of walls, diagonal shear failures as well as the effect of framing between vertical members and slabs in RC buildings. Earthquake Ground Motions for Performing Response History Analysis. About IES, Inc. Maybe it is not necessary to assign lateral loads for slab systems, I dont know. Behavior of structures will be. The lateral stiffness of the system depends upon the flexural stiffness property of the beams and columns, thus reducing the lateral stiffness of the frame. to a five storey building with six different shear walls. A single pinned connection is usually not sufficient to make a structure stable. ANALYSIS AND DESIGN OF RC TALL BUILDING SUBJECTED TO WIND AND EARTHQUAKE LOADS K. The positive local 2 axis has an upward sense. The plan and layout of conventional and GFRG building are illustrated in Figure 2 and 3. Instructional Material Complementing FEMA 451, Design Examples Seismic Load Analysis 9 - 21. The response spectrum method (RSM) was introduced in 1932 in the doctoral dissertation of Maurice Anthony Biot at Caltech. Oral Buyukozturk Fall 2003 3. This forum also aims in aiding professionals from allied fields such as architecture, construction, sociology, planning. Oct 5, 2015- Explore ti89todd's board "STRUCTURAL IRREGULARITIES" on Pinterest. Ever since I graduated as a Civil Engineer and specialized in the field of Structural Engineering, I seek for fresh opportunities and projects to expand my knowledge, satisfy my passion for engineering solutions and contribute to a well-structured environment. The proposed building was planned as a 6-story. earthquake using ETABS. 2 or the design lateral force, Fp, as set forth in Section 1632 Ev = the. 2-26 standard for the Seismic Analysis of Safety-Related Nuclear Structures was referenced for defining the combined horizontal and vertical seismic load combinations. ) When diaphragms and shear walls are used in the lateral design of a building, the structural system is termed a. In the present study is to evaluate the seismic performance of G+5 RC box shaped building with vertical regular and vertical irregular like mass irregularity subjected to earthquake forces. Rama Raju*,1, M. 2] requires that a vertical load effect equal to 0. ANALYSIS AND DESIGN OF RC TALL BUILDING SUBJECTED TO WIND AND EARTHQUAKE LOADS K. Importance factor (I) is 1. Door or window openings can be provided in shear walls, but their size must be small to ensure least interruption to force flow through walls. be integrated with FEM programs such as ETABS, SAP2000, ROBOT Struct and drafting software in CAD and BIM environment. 0 with taking three different height of the structure G+40 and G+50 5. The current version of ETABS has both rigid and semirigid diaphragms. on simulation tools ETABS and STAAD PRO, which have been used for analysis and design of rectangular Plan with vertical regular and rectangular Plan with Vertical geometrically irregular multi-storey building. The structures are modelled and analysed in software ETABS 16. SAP2000 Tutorial Manual 5 Assigning Loads Figure 1-2 Static Load Case Names Input Form 1. After an earthquake occurs it causes grea t damage due to unpredictable seismic motio n striking & when the height of building is increased the wind load effect also acts on building. A dynamic analysis was performed in ETABS on both the Series 111-11 and 111-07 buildings to determine the periods and mode shapes, The period corresponding to the first mode shape in each direction was used to determine the equivalent static earthquake load, and the results compared to five codes of practice: SNiP62, UBC64, UBC77, UBC85, and UBC88. can you help me with this In the below figure you may find the plan view of a building which consists of two identical special moment frames (SMF) in x direction and two identical special concentrically braced frames (SCBF) in y direction for resistance against lateral loads. Easily share your publications and get them in front of Issuu's. to vertical axis • (~)Purely torsional natural mode w. Earthquake (SLE) and the 2,475-year MCER event. It is very important for a structural designer to thoroughly understand each of these parameters to be able to come up with a convincing design. From this video you can learn how to define wind & earthquake load in etabs. (See Figure 1. Therefore, site for a building should be carefully chosen. Introduction A column is supposed to be a vertical member starting from foundation level and transferring the load to the ground. accrued stress is placed on geotextiles for holding walls and soil nailing. possible due to unavailability of space, so the only solution is vertical expansion. Etabs 2016 Online Training -Free Course. The vertical bracing are required to limit the sway deflection in case of seismic and wind loads. 5a, 5b) Strength (Weak Story) Irregularity. 1 dimensions, material properties and earthquake action. The analysis, apart from defining a solution to estimate the magnitude of the lateral active earth pressure induced by a saturated mass of soil subjected to vertical seepage and seismic acceleration, also analysed the different parameter that have a direct effect on Pae in order to define the level of influence of each factor in the design. 152 Earthquake Resistant Design According To 1997 UBC Major Changes from UBC 1994 (1) Soil Profile Types: The four Site Coefficients S1 to S4 of the UBC 1994, which are independent of the level of ground shaking, were expanded to six soil profile types, which are dependent on the seismic zone factors,. • DEAD can be used for the beam vertical loads and keep the Self Weight Multiplier as 1. Lateral loads due to wind and earthquake governs the design rather than the vertical loads. Preface This work is presented for the ful llment of the requirements of the Master of Sci-ence at the Department of Civil Engineering at the Technical University of Denmark. The seismic coefficient method of analysis should be used in determining the resultant location and sliding stability of dams. The vertical bracing are required to limit the sway deflection in case of seismic and wind loads. The loads are calculated by E-TABS software by providing shear walls at corner parts of building. From previous earthquakes, it is known that, irregularities decreases the earthquake performance of structural systems. SAP2000 Tutorial Manual 5 Assigning Loads Figure 1-2 Static Load Case Names Input Form 1. The total design lateral force or shear at the base of a structure. Three models are generated with difference in vertical mass irregularity analysed by using analysis tool 'ETABS Non-linear Version 9. ETABS includes complete and detailed steel and concrete design calculations for beams and columns, braces, walls and slabs, the time typically associated with the transfer of data between analysis and design programs has been eliminated. Extensive knowledge of Finite Element Analysis, Earthquake Engineering, Dynamics of Structures and CAD with pro-efficiency in analytical software like SAP2000, ETABS and RS2 (Phase 2). BUILDINGS. This earthquake zones are displayed in a map on page – 6 of the code. Vijayanarayanan Vipul V. Understanding the different seismic analysis parameters is an integral part of the seismic analysis. In this study, the behavior of a 7 storey reinforced-concrete residential building, which is under the effect of earthquake loads and has B3. During an earthquake the damage in a structure generally initiated at location of the structural weakness in the building. Analyze multiple scenarios and conditions, such as, Earthquake and wind loads,. FEMA's earthquake program was established in 1977, under the authority of the Earthquake Hazards Reduction Act of 1977, enacted as Public Law 101-614. And in most of the cases the vertical component of an ground shaking will. 5 for all occupancies in which Buildings and other structures shall design ed using the provisions of either Section 2. earthquake time histories considering different earthquake intensities (i. Distribution of lateral loads to parallel vertical structural systems is another important function of the floor slabs. In my own conclusion, this has to be edited manually after you run the auto load combination but I still want to hear how others are dealing with this issue. Each structure must be supported in both directions, so the minimum number of vertical braces is 2 brace in each plane. The definitions of international codes for different types of vertical irregularity is summarized in Table 1. Design spectrum according to Eurocode 8. In cast in situ reinforced concrete construction the floor system usually consists of one of the following Wall Supported slab systems ANALYSIS AND DESIGN OF REGULAR AND IRREGULAR FLAT SLAB FOR MULTISTOREYED BUILDING UNDER TWO SEISMIC ZONES USING ETABS AND SAFE. General Topics SAP2000 CSiBridge ETABS SAFE PERFORM-3D CSiCOL Tutorials Test Problems Documentation Licensing Linked Applications. It is developed by Hexagon PPM. Marios Panagiotou to transfer high-end knowledge on earthquake engineering and design of cost-efficient earthquake resilient structures. However, horizontal shaking along X and Y directions remains a matter of concern. Preface This work is presented for the ful llment of the requirements of the Master of Sci-ence at the Department of Civil Engineering at the Technical University of Denmark. The first data reported from an earthquake record is generally the peak ground acceleration (PGA) which expresses the tip of the maximum spike of the acceleration ground motion (Figure 1). 6 Richter Magnitude, Taipei earthquake. TECH CIVIL PROJECT LIST 2017-2018 building subjected to wind and earthquake loads: ETABS v9. The same is true for the Fagure type buildings in Romania after the 977, 986, and 990 earthquakes. The first Egyptian official regulation for seismic design was prepared and released by Egyptian Society for Earthquake Engineering (ESEE) in 1988 after few years of establishing ESEE. All the buildings locationanalysed by ETABS were software of version 9. efficient safe earthquake resistant building. The 1992 Cape Mendocino earthquakes (or 1992 Petrolia earthquakes) occurred along the Lost Coast of Northern California on April 25 and 26. 30 g may sometimes be adopted [7]. دانشگاه صنعتی خواجه نصیرالدین طوسی تهران. the building increases deformation due to earthquake load also increases hence it is most important to design structure for earthquake load. 2 shall be calculated. Abstract—Due to increase in population spacing in India is needed, especially in urban areas. During an earthquake the damage in a structure generally initiated at location of the structural weakness in the building. designs, even a value up to 0. In my own conclusion, this has to be edited manually after you run the auto load combination but I still want to hear how others are dealing with this issue.