摘要
为改善钢筋混凝土框架结构的抗震性能,将屈曲约束钢板墙作为抗侧力构件和耗能构件,应用于混凝土框架结构形成屈曲约束钢板墙-钢筋混凝土框架结构体系。通过2个两层单跨缩尺结构模型的拟静力加载试验和有限元模拟,对屈曲约束钢板墙-钢筋混凝土框架结构体系的滞回性能进行了研究,包括其受力过程、破坏模式、耗能能力、刚度退化和承载力退化等。研究结果表明,屈曲约束钢板墙-钢筋混凝土框架结构具有良好的抗震性能,屈曲约束钢板墙不仅能够提高混凝土框架结构的侧移刚度和屈服荷载,还对结构的耗能能力、延性和冗余度等有较大的改善。试验模型的能量耗散系数最大可接近2.0,位移延性系数可达到10.0左右,均比纯钢筋混凝土框架结构有较大提高。基于上述研究结果,提出了屈曲约束钢板墙的滞回模型,与试验结果的对比表明,该滞回模型能够较好地模拟试验模型的受力情况,可用于该类结构的非线性动力弹塑性分析。
In order to improve the seismic performance of reinforced concrete frame structures, the buckling restrained steel plate shear wall （BRSPSW） is used as lateral load resisting and energy dissipation component to form a new type of hybrid structure. The hysteretic performance of reinforced concrete frame with BRSPSW was studied by cyclic loading test and finite element simulation of two two-storey and one-bay specimens in terms of the loading process, failure mode, energy dissipation capacity, stiffness degradation and capacity degradation, etc. The research results indicate that reinforced concrete frame with BRSPSW has excellent seismic performance. BRSPSW greatly enhances the lateral stiffness, yield capacity, energy dissipation capacity, ductility and redundancy of reinforced concrete frame structure. The energy dissipation coefficient and ductility coefficient of specimens are about 2. 0 and 10. 0, which are far greater than those of reinforced concrete frame structure. Furthermore, the hysteretic model of BRSPSW is proposed in order to simplify the finite element analysis. Comparison with the test results indicates that the hysteretic model can simulate the loading behavior of the test specimen with reasonable accuracy, and can be used in the nonlinear dynamic elasto-plastic analyses of this kind of structures.
作者
刘文洋
李国强
LIU Wenyang;LI Guoqiang(College of Civil Engineering, Tongji University, Shanghai 200092, China;College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, China;State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2018年第5期27-35,共9页
Journal of Building Structures
基金
国家自然科学基金项目(51608180)
黑龙江省科学基金项目(QC2016071)
关键词
钢筋混凝土框架
屈曲约束钢板墙
拟静力试验
有限元分析
滞回性能
滞回模型
reinforced concrete frame structure
buckling restrained steel plate shear wall
quasi-static test
FEA
hysteretic performance
hysteretic model
作者简介
刘文洋（1981-），男，黑龙江巴彦人，工学博士，讲师。E-mail：wyliu81@126．com
