Accession Number : ADA182901

Title :   State-of-the-Art for Assessing Earthquake Hazards in the United States. Report 24. WES RASCAL Code for Synthesizing Earthquake Ground Motions.

Descriptive Note : Miscellaneous paper,

Corporate Author : WOODWARD-CLYDE CONSULTANTS WALNUT CREEK CA

Personal Author(s) : Silva,Walter J ; Lee,Kin

PDF Url : ADA182901

Report Date : May 1987

Pagination or Media Count : 120

Abstract : A computer code (RASCAL) has been developed to provide realistic predictions of ground motion parameters for applications to earthquake engineering risk assessment. The code incorporates random vibration theory (RVT) to calculate peak value of acceleration and velocity in addition to response spectra for specified earthquake source and propagation path parameters. To generate synthetic time histories, the code combines the phase spectra from observed strong motion records to a theoretical Brune modulus. The above techniques are also employed to produce an acceleration time history whose response spectrum matches a specified target or design response spectrum.

Descriptors :   *EARTHQUAKES, *GROUND MOTION, ACCELERATION, HISTORY, TIME, COMPUTER PROGRAMS, HAZARDS, PEAK VALUES, PATHS, PROPAGATION, RESPONSE, SPECTRA, EARTHQUAKE ENGINEERING, RISK, SOURCES, MOTION, RECORDS, RANDOM VIBRATION, GROUND MOTION, SEISMIC DATA, PHASE, SYNTHESIS, COMPUTER PROGRAMS, MATHEMATICAL PREDICTION, THREAT EVALUATION, VELOCITY, WAVE PROPAGATION, UNITED STATES

Subject Categories : Seismology

Distribution Statement : APPROVED FOR PUBLIC RELEASE