Approximate MPA-based method for performing incremental dynamic analysis
- Authors
- Moon, Ki-Hoon; Han, Sang Whan; Lee, Tae Sup; Seok, Seung Wook
- Issue Date
- Mar-2012
- Publisher
- SPRINGER
- Keywords
- Approximate method; Dynamic analysis; Pushover analysis; Empirical equation; Inelastic displacement; Collapse strength
- Citation
- NONLINEAR DYNAMICS, v.67, no.4, pp.2865 - 2888
- Indexed
- SCIE
SCOPUS
- Journal Title
- NONLINEAR DYNAMICS
- Volume
- 67
- Number
- 4
- Start Page
- 2865
- End Page
- 2888
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166103
- DOI
- 10.1007/s11071-011-0195-z
- ISSN
- 0924-090X
- Abstract
- In performance based earthquake engineering, it is important to accurately predict the seismic demand and capacities of structures. One recent estimation method is incremental dynamic analysis (IDA), which requires a series of nonlinear response history analyses (RHA) of the structure under various ground motions, each scaled to multiple levels of intensity, selected to cover entire range of structural response from elasticity, to yield and finally global dynamic instability. The implementation of IDA requires intensive computation and detailed knowledge of the nonlinear RHA of structures. In response to the complexity of IDA, an approximate method based on modal pushover analysis (MPA-based IDA) was developed. In MPA-based IDA, seismic demands are computed using the nonlinear RHA of the equivalent SDF systems instead of using nonlinear RHA of MDF systems. The objective of this study is to develop a simpler MPA-based IDA procedure that can avoid nonlinear RHA of equivalent SDF systems. For this purpose, MPA-based IDA employs the empirical equation of the inelastic displacement ratio (C (R) ), defined as the ratio of peak displacement of the inelastic SDF system to that of the corresponding elastic SDF system given the strength ratio R, and that of the collapse strength ratio (R (c)), which is the ratio of collapse intensity to yield strength. The proposed procedure is verified by comparing the seismic demands and capacities of 6-, 9-, and 20-story steel moment frames as determined by the proposed method and exact IDA.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166103)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.