配置高强钢筋混凝土短柱抗震性能研究  

Research on Seismic Behavior of Concrete Short Columns with HRB 600 Steel Bars

作　　者：刘彬[1] 韩松[2] 王学峰[3] 

机构地区：[1]新疆生产建设兵团建设工程(集团)有限责任公司,乌鲁木齐830002 [2]河北工业大学土木与交通学院,天津300401 [3]天津市公路工程总公司,天津300201

出　　处：《工程建设与设计》2017年第11期37-40,共4页Construction & Design for Engineering

基　　金：天津建委科技项目(2015-2)

摘　　要：为了研究配置HRB600高强箍筋混凝土短柱的抗震性能,论文对11根配置HRB600高强箍筋混凝土短柱进行拟静力加载试验,研究箍筋强度、箍筋间距、箍筋直径、箍筋形式、轴压比对混凝土短柱抗震性能的影响。配置HRB600级高强箍筋的混凝土短柱破坏形态皆为弯剪型破坏,轴压比是影响抗震性能最主要的因素之一,在高轴压比下密配高强箍筋的混凝土短柱仍然具有良好的延性、耗能能力;井字箍和八角箍抗震性能相差不大,而矩形箍的抗震性能比前两者都差很多;在一定配箍范围内不同箍筋参数的混凝土构件承载能力相差不大。To research the seismic behavior of concrete short columns with high-strength steel bars, 1lhigh-strcngth concrete short-columns confined with high-strength stirrups were designed for the anti-seismic behavior. In the experiment, the process and mode of component failure were studied, and how the axial compression ratio, stirrup strength, stirrup spacing and stirrup form influenced its hysteretic characteristics, energy dissipation, skeleton curves and ductili performance of columns were analyzed. The result indicated that： the failure mode of concrete short columns with HRB600 high strength stirrup arc of flexure-shear types. Axial compression ratio is the main factor affecting the seismic performance. In the high axial compression ratio, the high strength stirrups in most eonponcnts yielded in Displacement control stage. This shows that concrete short columns with compact HRB600 high strength stirrups still have good ducti｜ity and energy dissipation capacity.

关 键 词：短柱 拟静力试验 高强箍筋 轴压比 延性 

分 类 号：TU352[建筑科学—结构工程]