足尺水泥聚苯模壳格构式混凝土填充墙钢筋混凝土框架抗震性能试验研究

为研究水泥聚苯模壳(EPSC)格构式混凝土填充墙钢筋混凝土(RC)框架的抗震性能，对一足尺单层EPSC格构式混凝土填充墙RC框架模型进行了振动台试验。试验中考虑了墙体开洞及墙体与RC框架的连接方式，研究了不同强度地震动作用下模型结构的动力特性、加速度反应、位移反应、层间剪力和动应变反应。研究结果表明：连续强震动作用下EPSC裂缝数量较多，部分格构柱水平开裂，而RC框架未发现损伤，EPSC格构式混凝土填充墙RC框架具有良好的抗震性能；模型最大层间位移角仅为1/513，格构式混凝土墙体的存在极大增强了RC框架的抗侧刚度；墙体与RC框架设置不同间距、长度的拉结筋均能提高墙体的平面外稳定性能，可控制墙体与框架协同工作。

Experimental study on seismic behavior of full-scale reinforced concrete frame with EPSC latticed concrete infill wall

This paper presented an experimental study on the seismic performance of an RC frame with EPSC latticed concrete infill wall. A full-scale single-bay model structure were designed and tested on a shaking table. The openings in the walls and the connection type between the walls and RC frame were considered in the test. The dynamic characteristics, acceleration and displacement responses, inter-story shear forces and strain responses were analyzed. The test results indicate that the designed RC frame with EPSC latticed concrete infill wall has satisfactory seismic performance. A great number of cracks are clearly observed on the EPSC and several concrete lattice columns are cracked horizontally, while no damage is found on the RC frame under continuous strong ground motion. The latticed concrete walls can significantly enhance the lateral stiffness of the RC frame, and the model structure undergoes a super-major earthquake with minor inter-story drift (only 1/513). The steel bars, designed with different spacings and lengths, can play an effective role in the out-of-plane stability of the wall, thus improve the integrity of the structural system.