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.

中文翻译：

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新型自定心钢桁架耦合梁的混合耦合墙结构的地震反应评估

本文首先介绍了一种新型的带有预张紧玄武岩纤维增强聚合物复合筋的自定心屈曲消能器（SC-BRED）。此外，基于SC-BRED，提出了一种自定心钢桁架耦合梁（SCCB），以提高耦合墙结构的抗震能力。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使用两个SC-BRED。这些弦通过铰链连接到相邻的墙墩，所有非弹性变形都集中在SC-BRED上，可以轻松安装并快速修复以防震。本文主要关注于SCCB的数值和理论分析，并在PERFORM-3D中开发了非线性数值模型。每个中文代码设计了一个11层的原型结构。在最大压力下，评估并比较了具有SCCBs的混合耦合墙系统（HCW-SC），具有钢桁架耦合梁（无预应力筋）的混合耦合墙系统以及具有RC耦合梁的钢筋混凝土耦合墙系统的抗震性能。被认为是地震。结果表明，HCW-SC具有出色的侧向强度，刚度和延展性，并减少了地震后结构的残余位移。在考虑了最大地震的情况下，对钢筋混凝土耦合墙系统与钢筋混凝土耦合梁进行了评估和比较。结果表明，HCW-SC具有出色的侧向强度，刚度和延展性，并减少了地震后结构的残余位移。在考虑最大地震的情况下，对钢筋混凝土耦合墙系统与钢筋混凝土耦合梁进行了评估和比较。结果表明，HCW-SC具有出色的侧向强度，刚度和延展性，并减少了地震后结构的残余位移。