CONTINUUM ANALYSIS AND DISPLACEMENT-BASED DESIGN METHOD OF STEEL MOMENT-RESISTING FRAME RETROFITTED WITH SELF-CENTERING ENERGY-ABSORBING ROCKING CORE

被引：0
|
作者：
Hu S.-L. [1 ,2 ]
Wang W. [1 ,2 ]
机构：
[1] State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai
[2] Department of Structural Engineering, Tongji University, Shanghai
来源：
Gongcheng Lixue/Engineering Mechanics | 2023年 / 40卷 / 04期
关键词：
continuum distributed parameter model; displacement-based design method; dynamic analyses; residual drift; seismic retrofit; self-centering energy-absorbing rocking core;
D O I：
10.6052/j.issn.1000-4750.2021.09.0723
中图分类号：
学科分类号：
摘要：
This research intends to reduce the post-earthquake residual inter-story drift, enhance the seismic collapse-resistant capacity and avoid the soft-story failure due to inter-story drift concentration of moment-resisting frame (MRF) through the implementation of self-centering energy-absorbing rocking core (SCENARIO). Based on the continuum distributed parameter model, the influences of moment-resisting stiffness and lateral force-resisting stiffness of SCENARIO on the inter-story drift distribution and capacity of SCENARIO and MRF are studied. This research proposes the displacement-based design method of MRF retrofitted with SCENARIO, and the detailed design procedures are also provided. A three-story MRF is retrofitted with SCENARIO following the proposed design procedure. The results from the static pushover and dynamic analyses indicate that the SCENARIO can efficiently reduce the post-earthquake residual inter-story drift of MRF, and produce a uniform inter-story drift distribution. Moreover, the retrofitted building can achieve the performance objective. © 2023 Tsinghua University. All rights reserved.
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页码：46 / 57
页数：11
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