Seismic Fragility of Medium-Rise Soft Story SMRF Building Under Near Field, Fling Step, and Far Field Excitations

被引:0
|
作者
Sharma, Shishir [1 ]
Maharjan, Sameer [2 ]
Shreedhar, K. C. [1 ]
Gautam, Dipendra [3 ]
机构
[1] Clemson Univ, Dept Civil Engn, Clemson, SC USA
[2] Inst Engn, Dept Civil Engn, Thapathali Campus, Kathmandu, Nepal
[3] Univ Iceland, Fac Civil & Environm Engn, Earthquake Engn Res Ctr, Selfoss, Iceland
来源
关键词
far field; fling step; fragility function; medium-rise SMRF; near field; seismic vulnerability; soft story; DAMAGE ASSESSMENT; MASONRY; FAULT; VULNERABILITY; PERFORMANCE; NEPAL; BEHAVIOR; DESIGN; GORKHA; INFILL;
D O I
10.1002/eer2.70004
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Medium-rise soft story special moment resisting frame (SMRF) buildings can be found in many active seismic regions worldwide. This paper assesses seismic vulnerability of medium rise soft story SMRF building from a highly active seismic region under near field, fling step, far field, and mixed strong motion excitations. Fragility functions are derived for peak ground acceleration (PGA), peak ground velocity (PGV), and spectral acceleration (Sa) as intensity measures (IM) to identify possible anomalies in the selection of IMs while performing seismic vulnerability analyses. The results highlight that the fragility functions derived using mixed strong motion yield conservative estimate of exceedance probability for higher damage states in the near field regions. Moreover, at the considered maximum PGA (0.4 g) for many cities in Nepal, a seismically very active region in the world, most of the medium-rise soft story SMRF buildings would be unoccupiable due to the occurrence of extensive or collapse damage states under near field or fling step excitations.
引用
收藏
页码:149 / 162
页数:14
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