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配置高强钢筋混凝土短柱抗震性能研究 预览 被引量:3

Research on Seismic Behavior of Concrete Short Columns with HRB 600 Steel Bars
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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.
作者 刘彬 韩松 王学峰 LIU Bin, HAN Song,WANGXue-feng3 (1.XinjiangConstructionEngineering(G-roup)Co.Ltd.,Wulumuqi 830002,China; 2.SchoolofCivilandTransportation Engineering, Hebei Universityo fTeclmology, Tianjin 300401, China; 3.Tianjin HighwayEngineeringGeneral Company, Tianjin 300201, China)
出处 《工程建设与设计》 2017年第11期37-40,共4页 Construction & Design for Project
基金 天津建委科技项目(2015-2)
关键词 短柱 拟静力试验 高强箍筋 轴压比 延性 short column pseudo-static test high-strength stirrups seismic behavior axial compression ratio
作者简介 刘彬(1974-),男,四川中江人,高级工程师,从事工程施工管理研究。
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