A study to reduce the inter-story drifts of steel moment frames subjected to seismic load

Se Woon Choi, Hyo Seon Park

Research output: Contribution to journalConference articlepeer-review


An optimal drift design model for the steel moment frames under the seismic load is presented. The objective function of the proposed drift design model is to minimize the differences of the inter-story drifts so that the interstory drifts of the structure could be reduced. This model uses a constraint condition not to change the weight of the structure before and after the application of the presented method. This method resizes all or partial structural members consisting of the structure according to the values of displacement participation factors of the corresponding member. The efficiency of this algorithm is demonstrated by the application to a 3-story steel moment frame. It is concluded that the proposed method can determine the sectional properties of structural members to reduce the interstory drifts of the structure without the iterative structural analysis.

Original languageEnglish
Pages (from-to)325-328
Number of pages4
JournalProcedia Engineering
Publication statusPublished - 2011
Event12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12 - Hong Kong, Hong Kong
Duration: 2011 Jan 262011 Jan 28

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MEST)(No. 2010-0027246).

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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