Generation of Artificial Time History Earthquake Record Family using the Least Squares Fitting Method
최소오차 최적합화 방법에 의한 인공 시간이력 지진기록군의 생성

2008 Journal of the Earthquake Engineering Society of Korea  
>> Recently the necessity of time history analyses is increasing for the seismic analyses of a structure, and the seismic design provisions of IBC2003, ASCE and KBC2005 require the use of a minimum of seven earthquake records for the time history analyses. Earthquake records for the time history analyses could be selected from the database of the field-measured earthquake records having similar site conditions with the designed site, or from simulated sites satisfying the design spectrum.
more » ... ign spectrum. However, in this study seven earthquake records were generated using 50 earthquake records, classified as records measured at the rock, in the database of the Pacific Earthquake Research Center (PEER). Seven earthquake records were first selected by the least squares fitting method comparing the scaling factored response spectra with the specified design spectrum, and a family of seven artificial time history earthquake records was ultimately generated by multiplying scaling factors, which were calculated by the least squares fitting method and the SRSS averaging method, to the corresponding selected earthquake records.
doi:10.5000/eesk.2008.12.5.031 fatcat:3tli23f2pjgadntw4mlfzoojki