期刊
COMPUTERS & STRUCTURES
卷 148, 期 -, 页码 14-25出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2014.11.003
关键词
Parallel processing; Incremental dynamic analysis; Collapse margin ratio; Optimization; Earthquake engineering
资金
- National Institute of Standards and Technology (NIST) [60ANB10D107]
The collapse margin ratio (CMR) is an important value in the FEMA P-695 process. However, determination of the CMR is computationally intensive and the duration for running a full incremental dynamic analysis (IDA) using serial computing to calculate the CMR can be prohibitive. In response to this restriction, a new efficient search method was created for finding the collapse margin ratio for a structural model using parallel computing. The proposed method does not require a full IDA and provides a significant decrease in the time required to determine the CMR compared to running a full IDA using serial computing. The new method is compared against similar methods for finding the CMR in parallel using both a four-story buckling restrained braced frame and a four-story steel moment resisting frame. Recommendations for overcoming convergence issues are discussed to aid in the application of the search method. (C) 2014 Elsevier Ltd. All rights reserved.
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