Browse > Article
http://dx.doi.org/10.5000/EESK.2010.14.5.033

MPA-based IDA Using the Inelastic Displacement ratio, CR and the Collapse Intensity, RC  

Han, Sang-Whan (한양대학교 건축공학과)
Seok, Seung-Wook (한양대학교 대학원)
Lee, Tae-Sub (한양대학교 대학원)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.5, 2010 , pp. 33-39 More about this Journal
Abstract
This study develops an approximate procedure for incremental dynamic analysis (IDA) using modal pushover analysis (MPA) with empirical equations of the inelastic displacement ratio ($C_R$) and the collapse strength ratio ($R_C$). By using this procedure, it is not required to conduct linear or nonlinear response history analyses of multi- or single- degree of freedom (MDF) systems. Thus, IDA curves can be effortlessly obtained. For verification of the proposed procedure, the 6-, 9- and 20-story steel moment frames are tested under an ensemble of 44 ground motions. The results show that the MPA-based IDA with empirical equations of $C_R$ and $R_C$ produced accurate IDA curves of the MDF systems. The computing time is almost negligible compared to the exact IDA using repeated nonlinear response history analysis (RHA) of a structure and the original MPA-based IDA using repeated nonlinear RHA of modal SDF systems.
Keywords
Incremental dynamic analysis; Inelastic displacement ratio; Collapse strength ratio; Approximate procedure; Empirical equation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Chopra, A. K., and Goel, R. K., “A modal pushover analys is procedure for estimating seismic demands for buildings,” Earthq. Engrg. Struct. Dyn., 31, 561-582, 2002.   DOI   ScienceOn
2 ATC 63, Quantification of building seismic performance factors, ATC-63 project, FEMA 695, Washington, D.C., 2008.
3 Gupta, A., and Krawinkler, H., “Seismic demands for performance evaluation of steel moment resisting frame structures (SAC Task 5.4.3).,” Report No. 132, John A. Blume Earthquake Engineering Center, Stanford University, Stanford, CA., 1999.
4 Han, S.W., Wen, Y.K., “Methods of reliability-based seismic design II: calibration of code parameters.,” Journal of Structural Engineering (ASCE), 123(3), 256-263., 1997.   DOI
5 Vamvatisikos, D., and Cornell, C. A., “Incremental dynamic analysis,” Earthq. Engrg. Struc. Dyn., 31, 491-514, 2002.   DOI   ScienceOn
6 Vamvatisikos, D. and Cornell C. A., “Direct estimation of seismic demand and capacity of multi-degree of freedom systems through incremental dynamic analysis of single degree of freedom approximation,” J. Struct. Engrg. (ASCE), 131(4), 589-599, 2005.   DOI   ScienceOn
7 Han, S.W., Chopra A.K., “Approximate incremental dynamic analysis using the modal pushover analysis procedure,” Earthquake Engineering and Structural Dynamics, l35, 1853-1873, 2006.   DOI   ScienceOn
8 한상환, 이태섭, “강도한계 이선형 단자유도 시스템의 비탄성변위비,” 지진공학회 게재예정, 2010.
9 한상환, 김종보, 배문수, 문기훈, “강도한계 이선형 단자유도 시스템의 동적 불안정,” 지진공학회 Vol.12, No. 5, 2008.   DOI