Seismic Performance of High-rise Intermediate Steel Moment Frames according to Rotation Capacities of Moment Connections
- Authors
- Han, Sang Whan; Moon, Ki-Hoon; Ha, Sung Jin
- Issue Date
- Mar-2015
- Publisher
- Council on Tall Buildings and Urban Habitat
- Keywords
- Intermediate moment frames; Rotation capacity; Performance evaluation; High-rise buildings; Moment connection
- Citation
- CTBUH Journal, v.4, no.1, pp.45 - 55
- Indexed
- SCOPUS
- Journal Title
- CTBUH Journal
- Volume
- 4
- Number
- 1
- Start Page
- 45
- End Page
- 55
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157647
- ISSN
- 1946-1186
- Abstract
- The rotation capacity of the moment connections could significantly influence on the seismic performance of steel moment resisting frames. Current seismic provisions require that beam-to-column connections in Intermediate Moment Frames (IMF) should have a drift capacity as large as 0.02 radian. The objective of this study was to evaluate the effect of the rotation capacity of moment connections on the seismic performance of high-rise IMFs. For this purpose, thirty- and forty-story high-rise IMFs were designed according to the current seismic design provisions. The seismic performance of designed model frames was evaluated according to FEMA P695. This study showed that the forty-story IMF satisfied the seismic performance objective specified in FEMA P695 when the rotation capacity of the connections was larger than 0.02. However, thirty-story IMFs satisfied the performance objective when the connection rotation capacity is larger than 0.03.
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