（内蒙古科技大学土木工程学院， 包头 014010）

［摘要］为研究内嵌钢板钢筋混凝土框架结构的抗震性能，采用2层单跨1/3缩尺模型，设计1榀内嵌钢板钢筋混凝土框架试件和1榀钢筋混凝土框架对比试件。通过低周反复加载试验，研究内嵌钢板钢筋混凝土框架试件破坏机理、滞回性能、刚度退化规律、延性以及耗能能力，并与钢筋混凝土框架进行对比。试验结果表明:内嵌钢板钢筋混凝土框架的破坏机制更加合理，变形能力、抗侧刚度和承载力明显增高；在结构屈服前，梁柱无明显裂缝，钢板二层较一层变形发展充分，主应力沿对角线方向；ABAQUS有限元分析结果和试验结果吻合较好。

［关键词］内嵌钢板; 低周往复加载试验; 抗震性能； 滞回性能； 刚度退化规律； 延性； 耗能能力

中图分类号：TU375-4文献标识码：A文章编号：1002-848X(2020)13-0106-08

Study on seismic performance of reinforced concrete frame structure with embeded steel plates

LI Fengge, ZHANG Wenxin, NI Jing

（School of Civil Engineering， Inner Mongolia University of Science and Technology, Baotou 014010, China）

Abstract: The seismic performance of reinforced concrete frame structure with embedded steel plates is researched that adopt the 2-layer single-span 1/3-scale model. And we design a reinforced concrete frame with embedded steel plates and compared with a reinforced concrete frame. Using low reversed cyclic loading test, the research on reinforced concrete fram with embedded steel plates’s specimen failure mechanism, hysteretic performance, stiffness degradation law, ductility and energy dissipation capacity, and compared with reinforced concrete frame. Test results show that the damage mechanism of reinforced concrete frame with embedded steel plates is more reasonable. The deformation ability, the lateral stiffness and bearing capacity are obviously higher. Before the structure yield, there is no obvious crack in the beam and column. The second layer of the steel plate is fully developed than the first layer and the main stress is in the diagonal direction. The results of ABAQUS finite element analysis are consistent with the experimental results. 

Keywords:embedded steel plate; low reversed cyclic loading test; seismic performance; hysteretic performance; stiffness degradation law; ductility; energy dissipation capacity

作者简介：李奉阁，硕士，副教授，硕士生导师，Email:766742886@qq.com。