Abstract This paper proposes a macroscopic numerical model for simulating the seismic behavior of steel frames equipped with bolt-connected reinforcement concrete panel wall (RPWF). The RPWF is a new type of lateral-resisting system, which was proposed by the authors. The RC panel wall is connected with steel beams by high-strength bolts. In the proposed numerical model, a RPW is modeled by Multiple-Vertical-Line-Element-Model (MVLEM) elements; the wall-to-frame bolt connection is modeled by two nonlinear springs, and a four-phase mechanical model is proposed to simulate the these springs; the deterioration effects of the steel components and the shear deformation of the panel zones are considered; the plastic hinge model is used to simulate the nonlinear behavior of the beam-column connections and the connections at column bases. Two RPWF specimens were tested to validate the proposed model, the results show that: the predicted results of the proposed model generally correlate well with the test results, the maximum error on ultimate capacity is 7.9% in the positive loading direction. Finally, nonlinear dynamic analyses are conducted on a 6-story planar steel frame and two RPWF structures, the maximum inter-story drift ratio of the planar steel frame is dramatically reduced by using the RPW. The results indicate that the RPW with the wall-to-frame bolt connections is good choice to strengthen steel frame structures.

中文翻译：

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螺栓连接钢筋混凝土板墙钢框架宏观建模

摘要 本文提出了一种宏观数值模型，用于模拟装有螺栓连接钢筋混凝土板墙（RPWF）的钢框架的抗震性能。RPWF 是作者提出的一种新型侧向阻力系统。RC面板墙与钢梁通过高强度螺栓连接。在提议的数值模型中，RPW 由多垂直线元素模型 (MVLEM) 元素建模；墙与框架螺栓连接由两个非线性弹簧建模，并提出了四相力学模型来模拟这些弹簧；考虑了钢构件的劣化效应和面板区的剪切变形；塑性铰模型用于模拟梁柱连接和柱底连接的非线性行为。对两个RPWF试件进行了试验以验证所提出的模型，结果表明：所提出模型的预测结果与试验结果基本吻合，正加载方向极限承载力的最大误差为7.9%。最后，对一个6层平面钢框架和两个RPWF结构进行非线性动力分析，使用RPW显着降低了平面钢框架的最大层间漂移比。结果表明，采用墙-框架螺栓连接的RPW是加强钢框架结构的良好选择。对一个6层平面钢框架和两个RPWF结构进行非线性动力分析，使用RPW显着降低了平面钢框架的最大层间漂移比。结果表明，采用墙-框架螺栓连接的RPW是加强钢框架结构的良好选择。对一个6层平面钢框架和两个RPWF结构进行非线性动力分析，使用RPW显着降低了平面钢框架的最大层间漂移比。结果表明，采用墙-框架螺栓连接的RPW是加强钢框架结构的良好选择。