带现浇混凝土填充墙的剪力墙抗震性能试验研究

为研究现浇混凝土填充外墙对剪力墙结构抗震性能的影响，完成了10个采用不同做法和不同形式填充墙的足尺墙体试件和2个无填充墙对比试件的拟静力试验。结果表明：填充墙与主体结构之间采用聚苯板条分隔做法和PVC板条分隔做法时，填充墙对主体结构的影响基本一致，均一定程度上改变了主体结构破坏过程及最终破坏形态，对于PVC板条分隔做法的试件，其破坏时的延性好于聚苯板条分隔做法的试件；填充墙增大了试件的承载能力，对于聚苯板条分隔做法的试件，其峰值荷载为无填充墙试件的1.37~3.31倍，两种做法填充墙试件的峰值荷载大小相当；填充墙减小了试件的变形能力，对于极限位移角，聚苯板条分隔做法的试件为无填充墙试件的20%~65%，PVC板条分隔做法的试件的变形能力明显大于聚苯板条分隔做法的试件；除聚苯板条分隔做法的结构洞墙试件外，其余试件的极限位移角均满足剪力墙结构抗震变形能力要求；填充墙显著增大了试件弹性及弹塑性阶段的刚度。基于试验结果，建议结构计算时合理考虑填充墙的不利影响，工程中尽量避免采用结构洞填充墙，对填充墙部位的结构构件及填充墙采取一定的加强措施。

Experimental study on seismic behavior of shear wall with cast-in-situ concrete infilled walls

To study the effects of cast-in-situ concrete exterior infilled walls on the seismic behavior of shear wall structure, quasi-static tests on ten full scale wall specimens with infilled walls of different construction methods or shapes, together with two comparison specimens without infilled walls, were completed. The test results indicate that the effects of infilled walls separated by polystyrene strip and PVC strip on the behavior of the main structure are similar, and both cases change the failure process and final failure mode of main structure to a certain extent. The ductility at failure of the specimens separated by PVC strip is better than that of the specimens separated by polystyrene strip.The infilled walls enhance the load-carrying capacities of the specimens. The peak loads of the specimens with infilled walls separated by polystyrene strip are close to those separated by PVC strip, and their peak loads are 1.37-3.31 times that of the comparison specimens. The infilled walls weaken the deformability of specimens, the ultimate story drift ratios of the specimens with infilled walls separated by polystyrene strip are 20%-65% of those of comparison specimens, and the deformation capacity of the specimens with infilled walls separated by PVC strip are much larger than those of the specimens with infilled walls separated polystyrene strip. The ultimate story drift ratios of all specimens except that with wall filled in structural hole separated by polystyrene strip meet the seismic deformability requirement for shear walls. The elastic and inelastic stiffnesses of the specimens increase significantly owing to the existence of the infilled walls. Based on the test results, the detrimental effects of infilled walls are suggested to be considered in structural calculation. Walls with structural holes should be avoided in engineering projects. Measures should be taken to strengthen both the structural members around infilled walls and the infilled walls themselves.