Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2006.03a
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- Pages.625-633
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- 2006
Spatially variable ground motion simulation
공간적 변이성을 고려한 지진파 생성
-
Park, Du-Hee
(Dept. of Civil Engineering, Hanyang Univ.)
;
- Hashash Youssef M.A. (Dept. of Civil and Environmental Engineering, Univ. of Illinois) ;
- Lee, Seung-Chan (Dept. of Civil Engineering, Hanyang Univ.) ;
- Lee, Hyun-Woo (Dept. of Civil Engineering, Hanyang Univ.) ;
- Chun Byung-Sik (Dept. of Civil Engineering, Hanyang Univ.)
-
박두희
(한양대학교 공과대학 토목공학과)
;
- 유세프 하샤시 (일리노이 주립대학 토목환경공학과) ;
- 이승찬 (한양대학교 공과대학 토목공학과) ;
- 이현우 (한양대학교 공과대학 토목공학과) ;
- 천병식 (한양대학교 공과대학 토목공학과)
- Published : 2006.03.24
Abstract
Spatial variability of ground motions has significant influence on dynamic response of longitudinal structures such as bridges and tunnels. The coherency function, which quantifies the degree of positive or negative correlation between two ground motions, is often used to describe the spatially variable ground motions. This paper compares two available procedures for developing spatially variable ground time histories from a given coherency function. Hao's method shows serious limitation, resulting in unrealistic decrease in coherency with increase in distance Abrahamason's method, on the other hand, preserves important characteristics of the reference ground motion. Therefore, the Abrahamason's method is recommended to be used in developing spatially varying ground motions.