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Prediction Equation of Spectral Acceleration Responses in Low-to-Moderate Seismic Regions using Domestic and Overseas Earthquake Records

국내·외 계기지진 정보를 활용한 중·약진 지역의 스펙트럴 가속도 응답 예측식

  • Shin, Dong Hyeon (Department of Architectural Enginnering, University of Seoul) ;
  • Kim, Hyung Joon (Department of Architectural Enginnering, University of Seoul)
  • 신동현 (서울시립대학교 건축공학과) ;
  • 김형준 (서울시립대학교 건축공학과)
  • Received : 2017.10.17
  • Accepted : 2018.02.08
  • Published : 2018.03.01

Abstract

This study develops an empirical prediction equation of spectral acceleration responses of earthquakes which can induce structural damages. Ground motion records representing hazards of low-to-moderate seismic regions were selected and organized with several influential factors affecting the response spectra. The empirical equation and estimator coefficients for acceleration response spectra were then proposed using a robust nonlinear optimization coupled with a regression analysis. For analytical verification of the prediction equation, response spectra used for low-to-moderate seismic regions were estimated and the predicted results were comparatively evaluated with measured response spectra. As a result, the predicted shapes of response spectra can simulate the graphical shapes of measured data with high accuracy and most of predicted results are distributed inside range of correlation of variation (COV) of 30% from perfectly correlated lines.

Acknowledgement

Supported by : 한국연구재단

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