The seismic performance of rectangular shear walls reinforced with high-strength bars has been studied in depth, however limited research exists on the hysteretic performance of T-shaped walls built with high-strength reinforcement. As part of this study, two T-shaped shear walls reinforced with Grade HRB600 bars, and subjected to different axial load ratios (0.05 & 0.1), were tested under cyclic loading to study their hysteretic performance. The results show that the failure in such walls is associated with concrete crushing at the free end of the web. In addition, both the strength and envelope areas of the hysteretic loops are larger in the positive loading direction when compared to those loaded in the negative direction. Moreover, the axial load ratio increases the strength, initial stiffness and energy dissipation of such walls. As part of the analytical investigation, a method to model the hysteretic response of T-shaped walls built with high-strength bars is proposed, consisting of a backbone curve and a set of empirical hysteretic rules. The backbone 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 was 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 stiffness, and pinching behavior.

对高强度钢筋加固的矩形剪力墙的抗震性能进行了深入研究，但对高强度钢筋加固的T形墙的滞后性能的研究还很有限。作为这项研究的一部分，在循环载荷下测试了两个用HRB600级钢筋加固的T形剪力墙，它们承受了不同的轴向载荷比（0.05和0.1），以研究其滞后性能。结果表明，这种壁的破坏与腹板自由端的混凝土压碎有关。另外，与在负方向上加载的磁滞回线相比，在正向加载方向上的磁滞回线的强度和包络面积都更大。而且，轴向载荷比增加了这种壁的强度，初始刚度和能量耗散。作为分析研究的一部分，提出了一种用高强度钢筋建造的T形墙的滞后响应建模方法，该方法由主干曲线和一组经验滞后规则组成。主干曲线由简化的四线性模型组成，由裂纹，屈服点，峰值和极限点表示。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，分析的横向力-位移滞后曲线与实验曲线合理吻合，特别是在加载和卸载刚度以及挤压行为方面。提出了一种用高强度钢筋建造的T形墙的滞后响应建模方法，该方法由主干曲线和一组经验滞后规则组成。主干曲线由简化的四线性模型组成，由裂纹，屈服点，峰值和极限点表示。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，分析的横向力-位移滞后曲线与实验曲线合理吻合，特别是在加载和卸载刚度以及挤压行为方面。提出了一种用高强度钢筋建造的T形墙的滞后响应建模方法，该方法由主干曲线和一组经验滞后规则组成。主干曲线由简化的四线性模型组成，由裂纹，屈服点，峰值和极限点表示。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，分析的横向力-位移滞后曲线与实验曲线合理吻合，特别是在加载和卸载刚度以及挤压行为方面。主干曲线由简化的四线性模型组成，由裂纹，屈服点，峰值和极限点表示。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，分析的横向力-位移滞后曲线与实验曲线合理吻合，特别是在加载和卸载刚度以及挤压行为方面。主干曲线由简化的四线性模型组成，由裂纹，屈服点，峰值和极限点表示。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，分析的横向力-位移滞后曲线与实验曲线合理吻合，特别是在加载和卸载刚度以及挤压行为方面。