Elasto-plastic story shear distribution of semi-rigid frame with buckling-restrained steel plate shear walls

被引：0
|
作者：
Ge M. [1 ]
Hao J. [2 ]
Fang C. [2 ]
机构：
[1] School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an
[2] School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2020年 / 41卷 / 04期
关键词：
Buckling-restrained steel plate shear wall; Equivalent strip; Near-field(far-field) earthquake; Nonlinear time-history analysis; Story shear distribution;
D O I：
10.14006/j.jzjgxb.2018.0218
中图分类号：
学科分类号：
摘要：
In order to investigate the elasto-plastic story shear distribution of semi-rigid steel frame with buckling-restrained steel plate shear wall (BR-SPSW), five BR-SPSWs with buckling constraint equivalent strip simplified models of 5, 10, 15 and 20 stories with ideal yield mechanism were designed. Meanwhile, the effects of story number,cross-section of the members, velocity impulse of near-field ground motions and acceleration cumulative effect of far-field ground motions, were considered. The average story shears of the BR-SPSW structures under the two types of earthquake records were obtained through a nonlinear time-history analysis. An analytical model for the elasto-plastic story shear distribution of BR-SPSWs was proposed, and the prediction was compared with the story shear distribution pattern derived from the existing base shear method stipulated in GB 50011-2010 'Code for seismic design of buildings'. The results indicate that the near-field ground motions with velocity pulse and far-field ground motions with acceleration cumulative effects have obviously different effects on the story shear distribution of the BR-SPSWs, and the influence of the two factors should be comprehensive considered. The story shear distribution obtained in this paper is found to have improved accuracy than the other ones, and provides a reference for energy design method of BR-SPSW. © 2020, Editorial Office of Journal of Building Structures. All right reserved.
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页码：32 / 41
页数：9
相关论文
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