Study on seismic collapse capacity of single-degree-of-freedom structural system

被引：0
|
作者：
Shi, Wei [1 ]
Ye, Lieping [1 ]
Lu, Xinzheng [1 ]
机构：
[1] Department of Civil Engineering, Tsinghua University, Beijing,100084, China
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2014年 / 35卷 / 09期
关键词：
This paper first introduces a SDOF model capable of representing the key properties associated with earthquake-induced collapse. Then; based on the collapse capacity spectrum; the influence of various structural properties on the collapse resistance of SDOF systems is discussed; which include fundamental period; ductility ratio; post-yielding stiffness; post-capping stiffness; hysteretic pinching; cyclic deterioration and P-Δ effect. Furthermore; the influence of ground motion features on the collapse resistance of SDOF structures was also discussed; by comparing the collapse capacity spectra calculated based on far-field ground motion set; near-field no-pulse-like ground motion set and near-field pulse-like ground motion set. The result shows that: the fundamental periods; ductility and P-Δ effect are dominant factors in collapse evaluation; structures with fundamental periods ranging from 0.4 s to 1.8 s are more vulnerable to the near-field pulse-like ground motions and structures with fundamental periods ranging from 2.6 s to 5 s are more vulnerable to the far-field ones;
D O I：
10.14006/j.jzjgxb.2014.09.011
中图分类号：
学科分类号：
摘要：
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页码：82 / 89
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