In this paper a fifteen storied commercial building is subjected to an earthquake load histogram as in the case of bhuj earthquake in gujarat. Then he has used six sets of acceleration time histories for nonlinear time history analysis by sap 2000. It appears as though whenever i run a response spectrum analysis, sap does not consider the effect of the mass of the structure. Sap2000 follows in the same tradition featuring a very sophisticated, intuitive and versatile user interface powered by an unmatched analysis engine and. Pdf response spectrum analysis for irregular multi.
Response spectrum analysis in etabs civil engineering. To consider accidental torsion in a responsespectrum case, eccentricity should be added as a separate static load case. Sap 2000 features this program is primarily used for gravity analysis and design. The earthquake ground acceleration in each direction is given as a digitized responsespectrum curve of pseudo spectral acceleration response versus period of the structure. Apr 19, 20 etabs automatically includes the accidental eccentricity specified in the responsespectrum load case. Response spectrum analysis of asymmetrical building ijssbt. Mar 11, 2014 seismic analysis is a subset of structural analysis and is the calculation of the response of a building or nonbuilding structure to earthquakes. Response2000 is an easy to use sectional analysis program that will calculate the strength and ductility of a reinforced concrete cross. From a simple small 2d static frame analysis to a large complex 3d nonlinear dynamic analysis, sap2000 is the easiest, most productive solution for your structural analysis and design needs. In dynamic analysis, it is useful to display base shear and base overturning moment for comparison with results from equivalent static analysis. Spectrum analysis software free download spectrum analysis top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices.
Study on highrise structure with oblique columns by etabs. Learn about the sap2000 structural analysis and design program. Sap results for equivalent static and response spectrum method were nearly same. Gsa gsa analysis is the program to help solve engineering problems. How can i find base shear, overturning moment, story drift and lateral displacements in sap2000 using response spectrum analysis. Seismic analysis is a subset of structural analysis and is the calculation of the response of a building or nonbuilding structure to earthquakes. Nov 12, 2016 sap results for equivalent static and response spectrum method were nearly same. Anyone who modeled a structure in ansys can use the analysis files produced with anseismic by just calling them. Ansys program may also be called from anseismic if apdl file is available. Response 2000 is an easy to use sectional analysis program that will calculate the strength and ductility of a reinforced concrete crosssection subjected to shear, moment, and axial load. Pocket rta is a highly portable realtime spectrum analyser for your pc and pocket pc. Response spectrum, seismic design, bhuj earthquake. Jul 19, 2016 response spectrum analysis in staad pro using code is 189320022005 duration. Elevated water tanks tank staging fluidstructure interaction seismic analysis.
I have a doubt in the case of response spectrum method and how to decide scale. I do not think it would be reasonable to consider pdelta analysis with response spectrum load cases the basic reason behind this is that the results of response spectrum would loose signs as soon as the modal combination is done using methods like srss, cqc etc. Finite element approach is used to analyze the dam and a concretegravity dam model is prepared in staadpro to perform the time history analysis and response spectrum analysis and comparison is done between both these methods. Structural frame analysis software, powerful section builder, buckling, cables, plates, frequency, reponse spectrum and nonlinear analysis. The download package contains video tutorials and training for sap2000 v12 and sap 2000 v14 for beginners and advanced learners and the working files and examples have the notes and resultant files created in these videos. Csi sap2000 v19 x64 free download saturday, september 30, 2017.
Response spectrum dynamic analysis in staad proenglish. Earthquake analysis with sap2000 response spectrum analysis response spectrum analysis is performed to verify that the column design is adequate. For dynamic response spectrum analysis, define theresponse spectrum function and then response spectrum case using the procedure similar to that for static case. Sap 2000 and etabs training course teaches you how to use sap2000 software for structural analysis and design of residential building. Enter a new world of software engineering and digital signal analysis and save valuable time. How can i find base shear, overturning moment, story drift. Sap2000 seismic analysis civil engineering community. How do you decide scale factor in sap2000 while defining response. Comprehensive member design addons a wide range of steel, wood and concrete design codes from aisc 36016 asdlrfd, aisi s100, nds 2018, csa s16 fully integrated with our structural analysis software. Pocketrta pro has many advanced features which are normally only found in much more expensive sound analysis software, providing fast and accurate spectrum analysis suitable for both amateur hifi enthusiasts and professional av engineers. The finite element analysis software sap 2000 nonlinear is utilized to create 3d model and run all analyses. Jan 02, 2016 the sap name has been synonymous with stateoftheart analytical methods since its introduction over 30 years ago.
By default, sap considers the mass selfweight of the. Responsespectrum analysis seeks the likely maximum response to these equations rather than the full time history. Sap 2000 complete building analysis tutoone by devendra man palikhe in nepali language duration. Ybi wb onramp standalone bridge is analyzed by nonlinear time history analysis method. Pdf response spectrum analysis for irregular multistorey. During responsespectrum analysis, for a given timehistory record and direction of ground motion, maximum displacements, forces, and stresses are calculated throughout the. A three dimensional modeling and analysis of the structure are carried out with the help of sap 2000 software. What are the main differences between sap2000 and etabs. Response spectrum analysis of a simple planar frame. Csi sap2000 v19 x64 free download building design software. Now, if we define our spectrum to software, there will be no need to. The implementation adds wavelets to the reference time function such that its computed response spectrum matches the target spectrum. The deflected shape for a linearadd load combination which contains a responsespectrum load case will display either the minimum or maximum displacements, depending on which has the greater absolute value.
Mar 21, 2015 modal and response spectrum is 18932002 analysis 0f r. Response spectrum analysis computers and structures. Can anyone send me sap2000 file with response spectrum analysis with base. Apr, 2017 how do load combinations which include response spectrum load cases run. Response spectrum analysis generates the likely maximum response that a structure may experience in either direction. Does anyone know how to make sap consider the effect of mass.
Analysis and design software fully interactive graphical interface for quickly creating models frame, shell, solid and nonlinear link elements. A analysis software sap 2000 with hilberhughestaylor. Does anyone know how to make sa response spectrum analysis computers and structures. Department of civil and environmental engineering california. Ask a question about sap2000 structural analysis software sap2000 softwareanswers the download package contains video tutorials and training for sap2000 v12 and sap 2000 v14 for beginners and advanced learners and the working files and examples have the notes and resultant files created in these videos. Introduction the sap name has been synonymous with stateoftheart analytical methods since its introduction over 30 years ago. For each damping value the magnitude of the response spectrum must be given over the entire range of frequencies needed, in ascending value of frequency. Floor response spectra generation for seismic design of. The pdelta kg analysis is the one i used in the staadpro analysis and im well aware of this analysis. Unlike other courses that are available on internet which only teach you tools of the program and not the actual procedure of the design and detailing, this course will teach you these things along with all the. Response spectrum analysis in staad pro using code is 189320022005 duration. The result of the study shows similar variations patternin seismic response such as base shear and storey displacements and concluded that time history is realistic method used for seismic analysis. Responsespectrum analysis provides insight into dynamic behavior by measuring pseudospectral acceleration, velocity, or displacement as a.
Jan 19, 2019 watch response spectrum analysis in csi sap2000. Manual and sap result of story displacement, base reaction of equivalent static method were approximately same. Equivalent static method of analysis and response spectrum analysis method are used. Sep, 2012 the pdelta kg analysis is the one i used in the staadpro analysis and im well aware of this analysis. Nov 08, 2017 response spectrum analysis of a simple planar frame. It is well equipped to handle simplified lateral procedures, pushover analysis, response spectrum analysis, and response history analysis. Ty for tech me how to use response spectrum in sap2000, but i have one question. During response spectrum analysis, for a given timehistory record and direction of ground motion, maximum displacements, forces, and stresses are calculated throughout the structure for each vibration mode. Sap2000 follows in the same tradition featuring a very sophisticated, intuitive and versatile user interface powered by an unmatched analysis engine and design tools for engineers working on transportation, industrial, public works, sports, and other facilities. The resulting plot can then be used to pick off the response of any linear system, given its natural frequency of oscillation. Perform day to day analysis and solve complex engineering problems within the same environment 2. This tool is often utilized for smaller structures, or portions of a larger structure. The response spectrum is determined with sap 2000 software and designed in accordance with is 1893.
In sap2000 the scaling can already be done in the spectrum input. Elevated water tank,response spectrum analysis, sap 2000, two mass model. Responsespectrum analysis technical knowledge base. How much need mode i need to design a warehouse with. Responsespectrum analysis generates the likely maximum response that a structure may experience in either direction. It is part of the process of structural design, earthquake engineering or structural assessment and retrofit see structural engineering in regions where earthquakes are prevalent. Pocketrta has many advanced features which are normally only found in much more expensive sound analysis software, providing fast and accurate spectrum analysis. Response spectrum analysis is performed to verify that the column. Live and live roof and compare it with manual load calculation. Sap2000 download link provides demo version of the software.
Responsespectrum analysis faq technical knowledge base. Floor response spectra generation for seismic design of buildings. Analysis options response spectrum analysis multiple response spectrum cases in a single run modal combinations by. A response spectrum is a plot of the peak or steadystate 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.
Anseismic seismic analysis of structures with ansys and. Introduction response spectrum is the curve showing the maximum response versus the structural frequency relationship. Conclusion in this paper, the response spectrum, time history and linking slab inplan stresses analysis were executed combined with a practical project with inclined columns by several programs such as etabs, sap2000, midasgen and satwe, and the main conclusions of study are as follows. Spectrum,dynamic analysis,staad pro tutorial,earthquake analysis,mode shape,timeperiod in staad,civil engineering software,static analysis,structural analysis by staad,online staad pro v8i training,autocad,revit,staad pro, sap 2000. Response spectrum analysis stressed civilenvironmental 7 jun 08 18. Sap2000accidental torsion in responsespectrum case the. Load combination faq technical knowledge base computers.
Response spectra can also be used in assessing the response of linear systems with multiple modes of oscillation multidegree of freedom systems, although they are only accurate for low levels of damping. The results obtained from static analysis method shows higher storey displacement values as compared to response spectrum analysis. In fact, you would need to have additional modal analysis cases for each analysis, which is not practical at all. Modal analysis is performed to identify the modes, and the response in that mode can be picked from the response spectrum. Etabs automatically includes the accidental eccentricity specified in the responsespectrum load case. Response spectrum analysis software free download response. The seismic records are loaded from peer and earthquake analysis files are produced in ansys parametric design language apdl.
It is great at handling complex geometry as it offers users a lot of different element types and a lot of customization with regards to meshing options. I already posted this before that etabs, sap and midas gen have been using pdelta with response spectrum analysis for quite a long time. Analysis options response spectrum analysis multiple response spectrum cases in a single run modal combinations by the srss, the cqc or the gmc gupta method directional combinations by the abs or the srss method 20022015 tutorial. Sap 2000 and etabs training course on realworld civil. During responsespectrum analysis, loading is applied to the. The spectrum can be used in the subsequent response spectrum analysis, or it can be written to a file for future use. The sap name has been synonymous with stateoftheart analytical methods since its introduction over 30 years ago. I do not think it would be reasonable to consider pdelta analysis with response spectrum load cases the basic reason behind this is that the results of response spectrum would loose signs as soon as the modal combination is done using methods. Mar 29, 2019 learn civil engineering software, practical knowledge, research, exam and jobs response spectrum dynamic analysis in staad proenglish engineers response spectrum dynamic analysis in staad proenglish. Can anyone send me sap2000 file with response spectrum analysis. The deflected shape for a linearadd load combination which contains a response spectrum load case will display either the minimum or maximum displacements, depending on which has the greater absolute value. This program is primarily used for gravity analysis and design.
Response spectrum analysis in sap2000 civil engineering. The earthquake analysis capabilities of sap2000 are demonstrated using a railroad bridge bent designed in accordance with the arema. Traditional software alternative to risa 3d, microstran. Can sap2000 develop response spectra for a given location within. What i usually do is a simplification which consists first on running the basic response spectrum analysis and determining the frequency associated with the dominant mode and the corresponding acceleration from the response spectrum.
216 1038 1580 1221 516 1531 1511 1663 1060 1421 1388 1070 1113 816 1256 1567 691 180 411 1316 525 1661 364 1503 1539 720 1015 253 576 255 694 90 541 142 939 1135 64 43 16 477 486 880 510 1178 1234