The seismic performance of shear walls reinforced with high-strength bars has been experimentally studied in depth; however, limited analytical research exists on such walls. As part of this study, two shear walls reinforced with Grade HRB 600 bars and subjected to different axial load ratios (0.1 and 0.2) were tested under cyclic loading to study their hysteretic performance. As part of the analytical investigation, a method to model the hysteretic response of shear walls built with high-strength bars is proposed, consisting of a skeleton curve and a set of empirical hysteretic rules. The skeleton curve consists of a simplified quadrilinear model, represented by points at cracking, yield, peak, and ultimate. The empirical hysteretic rules are based on the Park hysteretic model. The experimental test data in this paper were used to validate the accuracy of the proposed analytical method. The results show that the analytical lateral force-displacement hysteretic curves are in reasonable agreement with the experimental curves, especially in terms of the loading and unloading stiffnesses and pinching behavior.

中文翻译：

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高强钢筋剪力墙滞回模型

对高强钢筋剪力墙的抗震性能进行了深入的试验研究；然而，对此类墙的分析研究有限。作为这项研究的一部分，两个用 HRB 600 钢筋加固并承受不同轴向载荷比（0.1 和 0.2）的剪力墙在循环载荷下进行了测试，以研究它们的滞后性能。作为分析研究的一部分，提出了一种对用高强度钢筋建造的剪力墙的滞后响应进行建模的方法，该方法由骨架曲线和一组经验滞后规则组成。骨架曲线由一个简化的四线模型组成，由开裂点、屈服点、峰值点和极限点表示。经验滞后规则基于 Park 滞后模型。本文中的实验测试数据用于验证所提出的分析方法的准确性。结果表明，分析的侧向力-位移滞后曲线与实验曲线具有合理的一致性，特别是在加载和卸载刚度和挤压行为方面。