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首页> 外文期刊>Bulletin of earthquake engineering >Seismic response assessment of a hybrid coupled wall structure with novel self-centering steel truss coupling beams
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Seismic response assessment of a hybrid coupled wall structure with novel self-centering steel truss coupling beams

机译：具有新型自定心钢桁架耦合光束混合耦合壁结构的地震反应评估

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摘要

In this paper, a novel self-centering buckling-restrained energy dissipater (SC-BRED) with pretensioned basalt fiber-reinforced polymer composite tendons is firstly introduced. Furthermore, based on the SC-BREDs, a self-centering steel truss coupling beam (SCCB) is proposed to improve the seismic resilience of coupled wall structures. The SCCB consists of chord members at the top and bottom, respectively, and two SC-BREDs are employed in the diagonal direction. The chords are connected to the adjacent wall piers by hinge joint and all inelastic deformations are concentrated on the SC-BREDs, which can be easily installed and quickly repaired for post-earthquake. This paper mainly focused on the numerical and theoretical analyses of the SCCB, and nonlinear numerical models are developed in PERFORM-3D. An 11-story prototype structure was designed per Chinese code. The seismic behaviors of the hybrid coupled wall system with SCCBs (HCW-SC), the hybrid coupled wall system with steel truss coupling beams (without pretensioned tendons), and the reinforced concrete coupled wall system with RC coupling beams were evaluated and compared under maximum considered earthquake. Results showed that the HCW-SC can achieve excellent lateral strength, stiffness, and ductility as well as reduce the residual displacements of the structure after earthquake.
机译：本文首先引入了一种新的自定心屈曲抑制的抑制能量消散剂（SC-Bred），具有预张紧玄武岩纤维增强聚合物复合筋。此外，基于SC-Breds，提出了一种自定心钢桁架耦合光束（SCCB）以改善耦合壁结构的地震弹性。 SCCB分别由顶部和底部的和弦成员组成，并且在对角线方向上采用两个SC繁殖。这些和弦通过铰链接头连接到相邻的壁墩，所有无弹性变形都集中在SC-Breds上，这可以很容易地安装和快速修复地震后。本文主要集中在SCCB的数值和理论分析上，在执行-D3中开发了非线性数值模型。每个中国代码都设计了一个11层的原型结构。用SCCBS（HCW-SC）的混合耦合壁系统的地震行为，具有钢桁架耦合梁的混合耦合壁系统（没有预张紧肌腱）和具有RC耦合光束的钢筋混凝土耦合壁系统，最大值比较被认为是地震。结果表明，HCW-SC可以实现优异的横向强度，刚度和延展性，以及降低地震后结构的残余位移。

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