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Seismic performance quantification of buckling-restrained steel plate shear wall-RC frame structures
Journal of Building Engineering ( IF 6.7 ) Pub Date : 2022-07-22 , DOI: 10.1016/j.jobe.2022.104992
Shuangshuang Jin , Yu Xie , Mengyi Li , Jiulin Bai

The beam-connected buckling-restrained steel plate shear wall (SPSW) has the advantages of high bearing capacity, strong energy dissipation and good ductility, and flexible arrangement in the structure, which can reduce the force acting on the frame columns and avoid premature failure of the frame columns. To determine the SPSW configuration in structures to fully exploit the seismic performance, a plastic design method of the steel plate shear wall-RC frame structure (SPSW-RCF) was proposed based on energy balance in this paper. The expected global failure mechanism was constructed and the double lateral resistance SPSW-RCF system was decomposed into SPSW system and RC frame system by using shear force ratio. The design base shear was calculated based on the energy balance principle to determine the design lateral story shear forces of the SPSW and RC frame systems, and then the design of SPSWs could be completed. Considering the post-yield behavior of SPSWs and the plastic internal force distribution mechanism, internal forces of beams and columns were calculated, and then the design of the RCF could be completed. 56 SPSW-RCF structures with different story numbers and story shear ratios were designed, SPSW thickness and reinforcements of the SPSW-RCF were compared. By performing the nonlinear dynamic analysis under 22 ground motions, the maximum interstory drift ratios, SPSW maximum displacement ductility, yield mechanism, residual drift ratio and story shear ratio of structures with different story numbers and story shear ratios were comparatively investigated. Furthermore, the actual SPSW-resisted story shear ratio was quantified and the recommended design SPSW-resisted story shear ratio was suggested.



中文翻译:

抗屈曲钢板剪力墙-RC框架结构抗震性能量化

连梁式约束屈曲钢板剪力墙(SPSW)具有承载力高、消能强、延性好等优点,在结构中布置灵活,可减少作用在框架柱上的力,避免过早失效的框架列。为确定结构中的SPSW构型以充分发挥抗震性能,本文提出了一种基于能量平衡的钢板剪力墙-RC框架结构(SPSW-RCF)塑性设计方法。构建了预期的全局失效机制和双侧向阻力SPSW-RCF体系利用剪力比分解为SPSW体系和RC框架体系。根据能量平衡原理计算设计基础剪力,确定SPSW和RC框架系统的设计横向层剪力,从而完成SPSW的设计。考虑SPSWs的后屈服行为和塑性内力分布机制,计算梁柱的内力,完成RCF的设计。设计了56个不同层数和层剪比的SPSW-RCF结构,比较了SPSW-RCF的SPSW厚度和配筋。通过在 22 次地震动下进行非线性动力分析,得到最大层间漂移比、SPSW 最大位移延性、屈服机制、对比研究了不同层数和层剪比结构的残余漂移比和层剪比。此外,对实际抗 SPSW 层剪比进行了量化,并提出了推荐的设计抗 SPSW 层剪比。

更新日期:2022-07-22
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