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http://dx.doi.org/10.12989/scs.2017.24.1.037

Seismic collapse probability of eccentrically braced steel frames  

Qi, Yongsheng (Changzhou Key Lab of Construction Engineering Structure and Material Properties, Changzhou Institute of Technology)
Li, Weiqing (Changzhou Key Lab of Construction Engineering Structure and Material Properties, Changzhou Institute of Technology)
Feng, Ningning (Changzhou Key Lab of Construction Engineering Structure and Material Properties, Changzhou Institute of Technology)
Publication Information
Steel and Composite Structures / v.24, no.1, 2017 , pp. 37-52 More about this Journal
Abstract
To quantitatively assess the safety against seismic collapse of eccentrically braced steel frame (EBSF) system, 24 typical EBSFs with K-shape and V-shape braces with seismic precautionary intensities 8 and 9 were designed complying with China seismic design code and relative codes to constitute archetype space of this structure system. In the archetype space, the collapse probability of the structural system under maximum considered earthquakes (MCE) was researched. The results show that the structures possess necessary safety against seismic collapse when they respectively encounter the maximum considered earthquakes corresponding to their seismic precautionary levels, and their collapse probabilities increase with increasing seismic precautionary intensities. Moreover, the EBSFs with V-shape braces have smaller collapse probability, thus greater capacity against seismic collapse than those with K-shape braces.
Keywords
seismic collapse; collapse probability; EBSF; IDA; rare earthquake;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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