All downloaded records are unscaled and asrecorded unrotated. Stochastic model for earthquake ground motions using wavelet. This set of f90routines implements the mai et al 2010 approach for hybrid broadband ground motion simulations. Flow chart showing the structure of the fotran program for.
Using the compsyn software package spudich and xu, 2003, a discrete. Engineering applications of strong ground motion simulation. With recent developments in software tools for structural analysis, computing power and structural modelling approaches and techniques that call for time domain transient nonlinear dynamic analysis, the demand for real and simulated time histories of ground motion increased substantially. 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. It includes seven simulation methods, eight simulation regions covering california, japan, central and eastern north america, and the ability to compare simulation results against empirical ground motion models aka gmpes. This web page provides source code and related data for the authors proposed ground motion simulation algorithm. Strong ground motion simulation strong motion scaling. Aug 23, 2019 the simulation uses a threedimensional model of the earths crust to track the rupture, as well as to model the seismic waves that are radiated into the surrounding rocks. We simulated the bam earthquake acceleration records at three. Explaining the principles that underlie strong ground motion simulation, this. A hybrid procedure for the assessment of design basis earthquake ground motions for nearfault conditions, soil dynamics and earthquake engineering 21 5. These modules are integrated into a software system that provides userdefined, repeatable, calculation of groundmotion seismograms, using multiple alternative ground motion simulation methods, and software utilities to generate tables, plots, and maps.
Pdf simulation of strong ground motion parameters of the 1. Time and frequency domain characteristics of strong motions, instrumentations, networks, strong motion processing procedures. Procedure for broadband strong ground motion simulation we used a hybrid broadband groundmotion simulation approach, based on frequencywavenumber greens functions for long periods 3 s and on a semistochastic ray theory method somerville et al. Prism is opensource software used for automatically processing strong motion records, and is intended to be used by individuals or strong motion networks.
Network for earthquake engineering simulation nees. Opensource software for strong ground motion simulation and validation fabio silva, christine a. Strong ground motion simulation of the 2003 bam, iran. Eqe 520 strong ground motion department of earthquake. Stochastic model for earthquake ground motions using wavelet packets. After the source model and slip distribution are defined, strong ground motion simulation can be attempted. Jun 19, 2012 the 2003 bam, iran, earthquake caused catastrophic damage to the city of bam and neighboring villages.
This simulation highlights the complex nature of seismic waves that are created during fault rupture, including the strong rupture directivity effects that would impact. The bbp uses earthquake rupture and wave propagation modeling software to simulate ground motions from earthquakes. Stochastic model for earthquake ground motion using wavelet. The scec bbp software can be compiled and run on recent linux systems with gnu compilers. Codes for earthquake rupture and groundmotion simulation cers have software packages as listed below. The bbp has been developed over the last five years in a collaborative project involving geoscientists, earthquake. Strong motion data processing usc earthquake engineering. Selection, scaling and simulation of input ground motion for. Then, all these values will be mixed into a data set which is used to control the motors of a motion simulator. The pseudo pointsource model approximates the rupture process on faults with multiple point sources for simulating strong ground motions. Opensource software for strong ground motion simulation and validation fabio silva, philip j. Sap2000etabs mastan2 response2000 section analysis for rc sections cufsm finite strip elastic buckling analysis application for thinwalled sections. Broadband strong ground motion simulations of large.
The mainshock record at durr station could be one control point of the simulation results. Simulation modelling of strong ground motion, in earthquake engineering handbook, wf. Stochastic ground motion simulation of the 2016 meinong. A finite source model and various rupture scenarios of the june 1978 earthquake are used to perform forward stochastic modeling of strong ground motion in terms of peak ground and spectral acceleration. Peer nga seismotoolbox for canada structural analysis software. Of course, we are glad to assist as much as we can with respect to installation and use of our. International atomic energy agency, ground motion simulation based on fault rupture modelling for seismic hazard assessment in site evaluation for nuclear installations, safety reports series no. A hybrid approach for broadband simulations of strong ground motion. Paolucci 1 dicadepartment of civil and environmental engineering, politecnico di milano, piazza leonardo da vinci 32, i203 milano, italy. We applied a stochastic method for the finitefault modeling of strong ground motions to the 2016 meinong, taiwan earthquake. The bbp can run earthquake rupture and wave propagation modeling software to simulate ground motions for wellobserved historical earthquakes and to. Simulation of strong ground motions 621 tions may be slightly too large for the moment and magnitude of the earthquake.
We present a simplified method to simulate strong ground motion for a realistic. Strong ground motion department of earthquake engineering. Simulation of nearfield strong ground motions using hybrid. Simulation of nearfield strong ground motions using. Broadband platform showing ground motion simulation methods blue circles, and optional postprocessing methods green circles. It extracts the game values like the force of speed, the direction of movement, shifting gear, rpm of the engine, force of acceleration and a lot more. Pdf we present a simplified method to simulate strong ground motion for a realistic representation of a. Ground motion simulation based on fault rupture modelling for seismic hazard assessment in site evaluation for nuclear installations safety reports series no. Jun 16, 2015 this video discusses the basics of several approaches for numerical simulation of ground motion, presents three contexts for validation of simulations, and p.
Openseismomatlab can calculate various time histories. Developing a generalized pseudodynamic source model of m w 6. Introduction to matlab software and data processing. In particular, we are utilizing the graves and pitarka 2010 simulation methodology, and several different models for the causative fault ruptures. Using the 3d seismic velocity model for the canterbury region we are performing hybrid broadband ground motion simulations of the major events in the 20102011 canterbury earthquake sequence. Usgs uses github for all new software development, as well as open. Sep 26, 2018 sma strong motion analyst processing software is a commercial windowsbased tool designed to interactively process strong motion accelerograms, featuring instrument correction, data editing, filtering, ground motion integrations, fourier and response spectra calculations, and v1, v2, v3 file format output. Our shared codes come naturally without warranty, so use and publish at your own risk. Pdf strong ground motion simulation for seismic hazard.
A simulation with this pointsource model is conducted by combining a simple source spectrum following the omegasquare model with a path spectrum, an empirical site amplification factor, and phase characteristics. The scaling tool available on this site is to be used to determine the scale factors to be used in the simulation. There are many methods available for strong ground motions simulations, being the. The southern california earthquake center scec broadband platform bbp is a carefully integrated collection of opensource scientific software programs that can simulate broadband 0100 hz ground motions for earthquakes at regional scales. This suite of routines allows to generate earthquake rupture models for ground motion simulation or for computing the static displacements due to slip on a fault. The highfrequency contributions are based on a stos multiple scattering model proposed by zeng et al. Software to download usgs earthquake hazard program. There are several approaches to the modeling and simulation of strong ground motion in consideration of. Flow chart showing the structure of the fotran program for atkinson and boore model 1995. There are three general types of strong ground motion simulation techniques douglas and aochi, 2008. This video discusses the basics of several approaches for numerical simulation of ground motion, presents three contexts for validation of simulations, and p. Realistic groundmotion simulations for earthquakeengineering purposes require an.
Four stations have recorded both earthquakes and one station has only recorded the aftershock. Developing a generalized pseudodynamic source model of mw 6. A simplified method for simulation of strong ground motion using. Rock motion is assessed under the city and it is transferred to the surface in accordance with the respective soil category. Import options for various realtime vehicle models such as dspace asm, simpack rt or vigrade carrealtime. Estimation of uncertainty in the strong ground motion simulation procedure for predicted strong ground motions from nu merical modelling to be accepted for use in engi neering design, it is necessary to demonstrate that the numerical modeling procedure can accu rately predict recorded strong ground motions. Besides the rupturemodeling software, a numerical method and the. Selection, scaling and simulation of input ground motion for time history analysis of structures yasin m. Opensource software for strong ground motion simulation and validation. They solve the seismic wave equation in a spherically layered. Ground motion simulation for dynamic structural analysis. The process of strong ground motion simulation is depicted as a flowchart in figure 1. In addition, future earthquake scenarios from other seismic sources would significantly contribute to seismic design of building and.
Pdf a simplified method for simulation of strong ground motion. Opensource software for strong ground motion simulation and. The aftershock of this earthquake was recorded at five stations. The simulation greens function method is useful for predicting the strong ground motion in an urban region without observed seismic waveforms to provide a useful strong ground motion and hazard. Ground motion simulation based on fault rupture modelling for. The bbp scientific software modules implement kinematic rupture generation, low and highfrequency seismogram synthesis using wave propagation. Simulation of strong ground motion parameters 39 by earthquakes, even in the case of small events as previously reported by polat et al. Ground vehicle simulation bec motion simulators with kuka.
We neither produce commercial software nor encourage use of computer programs as blackbox tool. The bbp scientific software modules implement kinematic rupture generation, low and highfrequency seismogram synthesis using wave propagation through. The horizontaltovertical spectral ratios hvsr were calculated from weak motions and. This software is the connectionlink between the game and the motion simulator. The southern california earthquake center scec broadband platform bbp is a carefully integrated collection of opensource scientific software programs that can simulate broadband 0100hz ground motions for earthquakes at regional scales. Largeamplitude ground motions were recorded at the bam accelerograph station in the center of bam city by the building and housing research center bhrc of iran. Simulation of strong ground motions for seismic fragility.
The webbased pacific earthquake engineering research center peer ground motion database provides tools for searching, selecting and downloading ground motion data. Strong ground motion simulation of the 2016 kumamoto. The southern california earthquake center scec broadband. Openseismomatlab is an innovative opensource software for strong ground motion data processing, written in matlab.