混凝土横孔空心砌块填充墙-RC框架抗震性能试验  

Experiment on Seismic Behavior of Concrete Horizontal-hole Hollow Blocks Infilled Wall-RC Frames

作　　者：吴方伯[1] 朱惠芳[1] 欧阳靖[1] 蒋文[1] 周绪红[1,2] 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]重庆大学土木工程学院,重庆400044

出　　处：《建筑科学与工程学报》2016年第5期7-13,共7页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金项目(51278179)

摘　　要：通过对3榀单层单跨RC(钢筋混凝土)框架足尺模型进行低周反复荷载作用下的抗震性能试验,着重探讨混凝土横孔空心砌块填充墙对RC框架抗震性能的影响。对试件的试验破坏特征、滞回曲线、骨架曲线、刚度退化、耗能性能等抗震性能指标进行对比分析,并对混凝土横孔空心砌块填充墙-RC框架的抗震性能进行评估。结果表明:混凝土横孔空心砌块填充墙-RC框架属于强框架、弱填充墙类型,最终破坏形态与空框架破坏形态接近;混凝土横孔空心砌块填充墙对RC框架具有刚度效应,较大程度提高了框架的水平承载力和抗侧刚度;混凝土横孔空心砌块填充墙与框架结构共同参与滞回耗能,混凝土横孔空心砌块填充墙-RC框架表现出良好的抗震性能。Three full-scale models of one-story-one-bay reinforced concrete （RC） frames were tested to mainly investigate the effects of the seismic behavior of RC frames under curves, skeleton curves, stiffness degra concrete horizontal-hole hollow blocks infilled wall on low cyclic loading. The test failure modes, hysteresis dation, energy dissipation capacity and other seismic performance indexes were compared and analyzed. The seismic behavior of concrete horizontal- hole hollow blocks infilled wall-RC frames was evaluated. The results show that concrete horizontal-hole hollow blocks infilled wall-RC frames meet the principle of strong frames and weak infilled wall, and the final failure mode is close to that of space frame. The concrete horizontalhole hollow blocks filled wall has stiffness effect to RC frame, and the horizontal bearing capacity and lateral stiffness of frame were improved greatly. The concrete horizontal-hole hollow blocks infilled wall and frame structure are both involved in the hysteretic energy dissipation. The concrete horizontal-hole hollow blocks infilled wall-RC frame shows good seismic behavior.

关 键 词：RC框架 混凝土横孔空心砌块 抗震性能 试验研究 

分 类 号：TU375.4[建筑科学—结构工程]