Earthquake design of equipment and supports by response. Oct 04, 2017 ground motion data can easily downloaded from any of the sites mentioned below. Nonlinear analyses require the specification of acceleration time histories as input. Faculty chair in earthquake engineering excellence. For example, a user might choose to add records from a recent earthquake to an existing ground motion database. How to import data from peer ground motion database for. A folder named data contains the acceleration time histories of the earthquakes considered in this study, in digitized format. After downloading the required data from peer website, open the downloaded dat file in seismosignal software. Earthquake acceleration time history analysis in abaqus abaqus posted on 20170419 20180315 by cjd abaqus. The first step was to collect the most important ground motion records worldwide. Application of sitespecific earthquake geotechnical. Search earthquake catalog view historic seismicity, find past earthquakes that meet your criteria. Earthquake acceleration time history analysis in abaqus.
The earthquake engineering online archiveniseepeer elibrary is a database of significant, publiclyfunded research and development literature, photographs, data, and software in earthquake, structural, and geotechnical engineering. Simplified procedures for estimating seismic slope displacements jonathan d. Where at is the acceleration time history of total duration t. The programs additional capability of computing site singlelayered soil response was not. Library pacific earthquake engineering research center. The earthquake motion is represented by the response spectra shown in figure 2. Archiving of a users personal ground motion database. Earthquake engineering engineersdaily free engineering. Acceleration is the second derivative of displacement, and derivative values are less accurate than integrated quantities during numerical analysis guidelines for timehistory outputacceleration accuracy are as follows time steps.
May 16, 2017 measures should be taken to obtain accurate output acceleration from time history analysis. Bispec is a nonlinear spectral analysis software program thatperforms unidirectional and bidirectional dynamic timehistory analysis of a simple dynamic system under earthquake ground motion records. All downloaded records are unscaled and asrecorded unrotated. Aug 25, 2016 this video gives information about, how to access peer website to get ground motion data time history data. Usgs earthquake hazards program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. This is a good option for software developers wishing to use earthquake data. It includes full text for eerc, semm, and peer reports published at uc berkeley, the nisee software library. Technical report for the peer ground motion database. Data were obtained from a variety of structural and geologic environments. Nasa socioeconomic data and applications center sedac. How to import data from peer ground motion database for time. How to import data from peer ground motion database for time history analysis in etabs.
Realtime notifications, feeds, and web services get realtime earthquake notifications sent to you on your phone or by email, or subscribe to realtime feeds. S regional and cooperating networks irisincorporated research institutions for seismology. Generation of artificial earthquake time history proceedings of 9 th irf international conference, pune, india, 18 may. The tutorial explains the time history analysis by assigning the. Pga is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake. Selecting and scaling earthquake ground motions for.
The pacific earthquake engineering research center peer is a ninecampus research center headquartered at the university of california, berkeley, working to develop, validate, and disseminate performancebased seismic design technologies for buildings and infrastructure to meet the diverse economic and safety needs of land owners and society. The significant earthquake database is continually updated and improved. Get realtime earthquake notifications sent to you using a number of popular mediums. An opensource framework for regional earthquake loss. Selection and scaling of real earthquake accelerograms to fit. Compute the maximum acceleration, velocity, displacement and force in the direction of the earthquake motion. Openseismomatlab is an innovative opensource software for strong ground motion data processing, written in matlab.
The strong motion earthquake data values of digitized strongmotion accelerograms is a database of over 15,000 digitized and processed accelerograph records from 1933 to 1994. Can someone help me where and how to find the time history data of n69w taft accelerogram record or the arvin tahachapi earthquake on july 21,1952. Center for hazards and risk research chrr columbia university, and center for international earth science information network ciesin columbia university. Selection and scaling of real earthquake accelerograms to. Selection, scaling and simulation of input ground motion for. I am doing time history analysis using acceleration time history of gorkha earthquake 2015, i am not clear about the response spectral matching with. This cd rom contains corrected acceleration, velocity and displacement time histories of 462 triaxial strongmotion records from 110 earthquakes and 261 stations in europe and the middle east. It includes full text for eerc, semm, and peer reports published at uc berkeley, the nisee software library, and images from eqiis. Simplified procedures for estimating seismic slope. Utilizing nonlinear time history analysis using multipledegreeoffreedom mdof models for buildings, and the nextgeneration performancebased earthquake engineering, an opensource generalpurpose scientific workflow for seismic damage simulation and loss prediction of urban buildings referred to as simcenter workflow is presented in this.
A computerbased environment for processing and selection. Standard, modal analysis of a frame using abaqus abaqus. Quakemanager provides an ideal environment for users to manage their own records. Usgs earthquake hazards program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards jump to navigation the earthquake hazards program website is moving.
To scale the input of ground motion records, what software we can use. This cd rom contains corrected acceleration, velocity and displacement timehistories of 462 triaxial strongmotion records from 110 earthquakes and 261 stations in europe and the middle east. The seismological and geological parameters can be classified in terms of magnitude, faulting. I am trying to find out the displacement time history data for koyna earthquake. The software implements an elastoplastic bilinear kinematic hardening constitutive model and uses a stateoftheart single step single solve time integration algorithm featuring exceptional speed, robustness and accuracy. This video gives information about, how to access peer website to get ground motion datatime history data. Earthquake ground motions for performing response history analysis. Consistent earthquake acceleration and displacement records earthquake accelerations can be measured. It can also compute several types of nonlinear spectra including constantstrength, constantductility and constantdamage spectra.
Acceleration, velocity, and displacement time histories in correct units response spectra psa of 5% damped sdof system at 200 frequencies between 0. Openseismomatlab file exchange matlab central mathworks. Is there any software for scaling earthquake records. Measures should be taken to obtain accurate output acceleration from timehistory analysis. In march 2004 a new cd rom entitled dissemination of european strongmotion data, volume 2 was released. Anseismic seismic analysis of structures with ansys and. However, structures are subjected to earthquake displacements j. The time history is the sequence of values of any timevarying quantity such as a ground motion measurement measured at a set of fixed times. Guidelines for time history output acceleration accuracy are as follows. As acceleration response spectra from the basis of most c.
Acceleration is the second derivative of displacement, and derivative values are less accurate than integrated quantities during numerical analysis. Non usgs sites that host various geophysical, geodetic, and geologic data pertinent to earthquake studies. The primary objective of this task was to develop guidance for selecting, generating, and scaling earthquake ground motions for effective use in performing responsehistory analyses for use in performancebased seismic engineering. A computerbased environment for processing and selection of seismic ground motion records. The timehistories can be exported in a number of different strongmotion record. Strong motion earthquake data values of digitized strong. Nov 16, 2015 one of the main problems in time history analysis is the definition of a proper input and arranging the records for different structural analysis programs. Peak ground acceleration pga is equal to the maximum ground acceleration that occurred during earthquake shaking at a location.
The authors searched the peer ngawest2 earthquake record database and the geonet strong motion database van houtte et al. Global earthquake hazard distribution peak ground acceleration. Time history database for induced earthquakes canadian induced. The energy in the accelerogram can be quantified by the arias intensity. Selection and scaling of real earthquake accelerograms to fit 1232 the selection criteria of proper time history records to fit the design code spectrum are also taking into account the geological and seismological conditions at a specific site. Acceleration, velocity, and displacement time histories in. Sep 26, 2018 initially, the program uses the time step of the input acceleration time history as the time step of the dynamic analysis, and then if this is found to violate the aforementioned maximum, the algorithm automatically reproduces the acceleration time history with half the current time step through linear interpolation, so that the threshold value. In most of the databases, ground motion records are already filtered, but. The peer nga strongmotion databases, the associated flatfiles, reports, and. The pacific earthquake engineering research center peer is a ninecampus. Get realtime earthquake notifications sent to you using. Selection, scaling and simulation of input ground motion. Downloads global earthquake hazard distribution peak. In the input file parameters dialog box, select peer nga format and press ok button.
For either modal or directintegration timehistory analysis. In the case of external data, the input file is the name of the time history input file that contains the data. In the late 1990s peer recognized the need to improve access to earthquake ground motion data and thus embarked on an effort to create a webbased searchable database of strong ground motion data. Acceleration, velocity and displacement spectra and ductility demand for simqke generated records trapezoidal intensity envelope with earthquake rise time2. One of the main problems in time history analysis is the definition of a proper input and arranging the records for different structural analysis programs. Bispec is a nonlinear spectral analysis software program that performs unidirectional and bidirectional dynamic timehistory analysis of a simple dynamic system under earthquake ground motion records. A new opensource software for strong ground motion data processing. Csmip as used by the california strongmotion instrumentation program. The various methods of presentation are illustrated with reference to the strongmotion records obtained at pacoima dam, in the san fernando earthquake of 1971. Real time notifications, feeds, and web services get real time earthquake notifications sent to you on your phone or by email, or subscribe to real time feeds. In the case of transient analyses, ground accelerationtime history data are used for seismic analysis. Various output formats, and links to earthquake details. If you are using the rupture models, please read and cite the reference associated with each model.
There could hundreds of metadata field values for each record that need to be saved, browsed, searched and imported from and to files and databases. Where can i find ground acceleration data for earthquakes. Most of the data are available in three levels of processed files. For constraint time history data the ramping data are applied to smooth the transition between statics and dynamics.
The data source determines whether the data are specified in an internal table, or in an external file. Support stiffness in the direction of earthquake motion is 50000 poundsinch. Simplified procedures for estimating seismic slope displacements. Earthquake shaking generally occurs in all three directions. Earthquake shaking at a site is recorded on a seismometer, which digitally or optically records a time history of ground accelerations at the site. Peer strong ground motion databases pacific earthquake. Ground motion data can easily downloaded from any of the sites mentioned below.
The time history data of acceleration, velocity, and displacement will be displayed along with their plots. Washington state transportation center trac university of washington, box 354802. The prepared ground motion databases are for two regions. You can give here either the full path or a relative path vessel motion and constraint imposed motion time history data offer you a choice of interpolation method. This software validation was limited to scaling an input acceleration time history to match a specified target spectrum.
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