What is the difference between the responsespectrum and the. Thus the emerging methodology to an accurate seismic. It is an incremental static analysis which is used to determine the forcedisplacement relationship or t. Sap2000 multipendulum model newtons cradle model a pendulum system in sap2000 using largedisplacement time history analysis. Since 2008, csi has been certified iso 9001compliant by det norske veritas, an independent certification agency accredited by the international organization for standardization. Cover photo nonlinear analysis model for a seismic retrofit study of an existing building with concrete shear walls. Time history analysis of building frame sap is structural analysis programming software. May 26, 2009 time history seismic analysis with sap2000 a stepbystep guide for bengmengmsc students familiarizing with this piece of software slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Comparison between response spectrum and time history.
The modeling and analysis of humaninduced vibrations due to footfalls or another type of impact. List of content download recorded accelerograms from the peer database upload a selected accelerogram to sap2000 run the timehistory analysis and display the results. Learn about the sap2000 structural analysis and design program. Seismic time history sap2000 civil engineering community. Timehistory analysis may be initiated using the process which follows. What is the difference between time history analysis and. Timehistory and response spectrum methods are the two basic methods that are commonly used for the seismic dynamic analysis. Model a pendulum system in sap2000 using largedisplacement timehistory analysis. Finite element has been widely used in the analysis of concrete gravity dams with a defined approach as presented in this paper. A seismic analysis in the design of buildings especially high rise towers is a very important factor to consider. Sap 2000 tutorial session notes mit opencourseware. There are basically three methods for seismic analysis.
Seismic analysis of a asymmetrical building in sap2000. Sap2000 a stepbystep guide for bengmengmsc students familiarizing with this piece of software. Deformation cable supported bridge analysis and pushover analysis. Timehistory analysis provides for linear or nonlinear evaluation of. Linear and nonlinear timehistory analysis are used to assess earthquake. To perform such an analysis, a representative earthquake time history is required for a structure being evaluated. Sap2000 tutorial manual 3 building the model in sap2000 using templates 1. The load time history file generated in fvap can be input to sap2000 automatically. Numerical analysis of monitoring of plastic hinge formation.
Select define functions time history to define a timehistory function which characterizes load variation over time. The advantage of these linear dynamic procedures with respect to linear static procedures is that higher modes can be considered. The recent increase in the speed and capacity of personal computers has made it practical to run many time history analyses in a short period of time. Nonlinear time history analysis of concrete gravity dam. This is to certify that the thesis entitled seismic behavior of. Five different time histories have been used considering seismic intensities. Nonlinear time history analysis of tall structure for. Create the model and assign support conditions to restrained joints. Timehistory seismic analysis with sap2000 a stepbystep guide for bengmengmsc students. Civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering ebooks and many more civil engineering downloads. Pdf concrete gravity dam 140 m high of proposed tanahu hydroelectric project. Effective analysis of many types such as static, modal, nonlinear, seismic, time history analysis etc. Timehistory seismic analysis with sap2000 a stepbystep guide for bengmengmsc students familiarizing with this piece of software slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The load timehistory file generated in fvap can be input to sap2000 automatically.
Linear time history analysis is performed instructural analysis and d esign staad pro software. It is also referred as nonlinear time history analysis, nonlinear response history analysis, or according to asce 41 06 2007 as nonlinear d y namic procedure ndp. As you can see, sap2000 is a powerful structural analysis tool and can be used for a. Nonlinear timehistory analysis and plastic hinges seismology engineering engtips. Time history analysis in sap2000 structural analysis software.
The load timehistory curve of a certain node gained when the amount of the group is 60 is shown in fig. Timehistory analysis technical knowledge base computers and. The third part of this volume, the sap2000 introductory tutorial manual, is intended to provide first time users with handson experience using the modeling, analysis and design features of sap2000. Created by risa technologies risa3d is popular among structural engineers because it is the easiest software to use. Sap2000 watch and learn video tutorials cover a wide range of topics, from basic product overviews to advanced subjects such as nonlinear sequential construction. Sap2000 seismic analysis civil engineering community. A time history analysis uses the mass, stiffness and damping matrices to solve for the forced vibration of the structure due to an applied load that varies with time. Among these, nonlinear static procedures are becoming, evermore, the preferred choice of the majority of design codes, as an alternative to. What value of scale factor should i use to define a timehistory load case.
This means that pa is meant to be a second stage analysis. Preliminary, numerical analyses of a novel structural health monitoring shm technique are reported. Timehistory analysis first steps tutorials computers and. Assign load conditions to the model through assign joint loads or frame loads. Timehistory analysis technical knowledge base computers. The response spectrum method, on the other hand, is relatively more rapid, concise, and economical. Thus the emerging methodology to an accurate seismic design is.
Time history seismic analysis with sap2000 a stepbystep guide for bengmengmsc students. Using sap2000 software package in earthquake engineering. Therefore, dynamic analysis methods forestimating the response of a concrete gravity dam plays an extraordinary role. The building under consideration is modeled with the help of sap200015 software. It is based on the design project example shown below, the complete solution of which is provided as a handout. Timehistory analysis faq technical knowledge base computers. Staadpro to perform the time history analysis and response spectrum analysis. In fact, most of the building design result is governs with the seismic loads.
Jul 21, 2014 chopra ak, goel rk 2002 a modal pushover analysis procedure for estimating seismic demands for buildings. Chopra ak, goel rk 2002 a modal pushover analysis procedure for estimating seismic demands for buildings. The earthquake excitation used for the analysis is the en. Linear seismic analysis is done for the building by static method seismic coefficient method and dynamic method response spectrum method using staadpro as per the is1893 2002part1. Select define functions time history to define a time history function which characterizes load variation over time. The load time history curve of a certain node gained when the amount of the group is 60 is shown in fig.
This is a minitutorial prepared for the structural analysis of a sample beam. Mar 11, 2014 the seismic input is modelled using either modal spectral analysis or time history analysis but in both cases, the corresponding internal forces and displacements are determined using linear elastic analysis. Modeling considerations in seismic assessment of rc. Sap 2000 tutorial session notes this tutorial provides the basic steps of performing a frame analysis using sap 2000. The third part of this volume, the sap2000 introductory tutorial manual, is intended to provide firsttime users with handson experience using the modeling, analysis and design features of sap2000. I will just give hint or say core part of it which you must revisit and verify after you go through both methods. Timehistory analysis provides for linear or nonlinear evaluation of dynamic structural response under loading which may vary according to the specified time function. Initial conditions may be set by continuing the structural state from the end. Nonlinear structural analysis for seismic design, nehrp. Timehistory with sap2000 databases function mathematics. Among these, nonlinear static procedures are becoming, evermore, the preferred choice of the majority of design codes, as an alternative to complete nonlinear. Research on timehistory input methodology of seismic analysis. The same model was used for elf, modalresponsespectrum, and modaltime. I need some guide in definition of hinge properties, using nonlinear fiber.
The proposed method is to study the response of low, mid, and high rise reinforced concrete buildings under low, intermediate, and high frequency content ground motions. Time history is basically a method of seismic analysis for the simulation of an earthquake motion. Displacement and elastic force time history of some stories are shown in figures 4 and 5. History risa technologies has been developing cuttingedge structural design and optimization software since 1987.
Pdf sap fico complete enduser manual realtime project free download. The increasing awareness of the general society toward the seismic safety of structures has led to more restrictive performance requirements hence, many times, to the need of using new and more accurate methods of analysis of structures. Seismic design of buildings worked examples worked examples presented at the workshop ec 8. A reduced number of lanes for normal traffic is available within three months of the earthquake. With the help of sap2000 nine story building frame has been analysed for seismic loads without damper and with damper linear as well as nonlinear time history analysis has been done. Nonlinear time history analysis of concrete gravity dam by. The time history method is relatively more time consuming, lengthy and costly. Response spectrum method help designer to design a buildingstructure for maximu. You can change the units you are working with at any. Time history analysis in sap2000 structural analysis. A pushover analysis is a static, nonlinear procedure using a simplified, nonlinear technique to estimate seismic structural deformations.
Therefore, the program must have information about the force as a function of time applied to the structure and the structures damping in order to solve the dynamic analysis. The recent increase in the speed and capacity of personal computers has made it practical to run many timehistory analyses in a short period of time. Jun 29, 2015 seismic analysis of a asymmetrical building in sap2000. Timehistory analysis first steps tutorials computers. Pdf nonlinear time history analysis of large concrete dam. Based on recent developments of new rotation rate rotation velocity sensing devices, it is proposed to use the rotational sensors to measure the rotational difference of structural members to indicate plastic hinge development at the early stage.
Csi has implemented a comprehensive quality management system to ensure that customer expectations and industry requirements are not only met but exceeded. We are committed to delivering uninterrupted software services worldwide during the covid19 crisis. Because earthquake loads together with the wind loads considerations have a huge impact on the design result. Please read both method, you will definitely get it.
Nonlinear dynamic analysis it is known as time history analysis. Apr 20, 2017 the increasing awareness of the general society toward the seismic safety of structures has led to more restrictive performance requirements hence, many times, to the need of using new and more accurate methods of analysis of structures. Select the units you want to work with from the status bar at the bottom of the sap2000 window. Research on timehistory input methodology of seismic. Seismic load analysis by sap2000 manual manual structsource earthquake analysis with sap2000 suzuki rl250 manual etabs manual seismic design of steel buildings 2001 dodge 42re seismic analysis of structures. It is an important technique for structural seismic analysis especially when the evaluated structural response is nonlinear.
Using sap2000 for pushover analysis we will use the same frame elastic beams, just modify dead loads. Limited service bridge is open for emergency vehicle traffic. And one has to design the structure in order to obtain the reinforcement details. Modeling considerations in seismic assessment of rc bridges. This paper presents the dynamic nonlinear time history analysis of a concrete gravity dam by using csi sap 2000. The analysis of the structure for accidental torsion was performed on sap2000. Jun 30, 2015 civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering ebooks and many more civil engineering downloads.
The timehistory method is relatively more time consuming, lengthy and costly. The research of timehistory response analysis of floor. A concrete gravity dam model is prepared in sap 2000 to perform the time history analysis. What is the difference between time history analysis and push. Comparative study of static and dynamic seismic analysis. Chapter 4 seismic design and retrofit page 42 wsdot bridge design manual m 2350. Time history and response spectrum methods are the two basic methods that are commonly used for the seismic dynamic analysis. Confined mander model available in the sap2000 software package. This tutorial demonstrates the modeling of vibrating machinery and its. From a simple small 2d static frame analysis to a large complex 3d nonlinear dynamic analysis, sap2000 is the answer to all structural analysis and design needs. Time history analysis may be initiated using the process which follows.