This paper conducted experimental and numerical investigations on the seismic behaviour of masonry infilled self-centring beam moment frames (SCB-MFs). First, an efficient hysteretic material model was proposed for use with the equivalent strut modelling approach of infill walls. This model was defined by backbone parameters and hysteretic parameters and implemented in the OpenSees platform to facilitate its application. Then, an approximately half-scale test of infilled SCB-MFs was carried out. The test observations and load-carrying capacities of masonry walls in the specimen were reported and analysed. The experimental hysteresis was reproduced by the numerical model using the proposed infill material. Finally, structural analyses were conducted for 3-, 6-, 9-, and 12-storey infilled SCB-MFs based on the calibrated computational model. Comparisons of the hysteretic behaviours obtained by the simulation with experimental results showed that the proposed infill material could capture the strength, stiffness, and energy dissipation during reloading, along with the residual drift during unloading. The nonlinear dynamic analyses also validated the feasibility of using the proposed model to simulate the dynamic responses of infilled SCB-MFs.

本文对砌体填充自定心梁力矩框架 (SCB-MF) 的抗震性能进行了实验和数值研究。首先，提出了一种有效的滞回材料模型，用于填充墙的等效支柱建模方法。该模型由主干参数和滞后参数定义，并在 OpenSees 平台中实现以促进其应用。然后，对填充的 SCB-MF 进行了大约一半的测试。报告和分析了试件中砌体墙的试验观察和承载能力。使用建议的填充材料通过数值模型再现了实验滞后。最后，基于校准的计算模型对 3、6、9 和 12 层填充 SCB-MF 进行了结构分析。通过模拟获得的滞后行为与实验结果的比较表明，所提出的填充材料可以捕获重新加载过程中的强度、刚度和能量耗散，以及卸载过程中的残余漂移。非线性动态分析还验证了使用所提出的模型来模拟填充 SCB-MF 动态响应的可行性。