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钢筋混凝土带翼墙短柱抗震性能研究 被引量:10

Study on Seismic Behavior of Reinforced Concrete Short Column with Flange Wall
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摘要 本文通过12个试件试验、电算和机理分析,对钢筋混凝土带翼墙短柱抗震性能进行研究。试验以剪跨比、轴压比和翼墙宽度为变参数,采用单调和低周往复两种方式施加水平荷载。电算采用三维实体单元,对弹性状态下这种柱的受力特点和变参数影响进行了分析。对试验中出现的各种破坏形态进行了机理分析,并建议了相应的水平极限承载能力计算公式及界限剪跨比。研究结果表明:翼墙充分参加工作,改变了柱的受力与破坏形态,使柱的承载能力提高,变形能力降低;电算、公式计算和试验结果符合良好。 In this paper, the seismic behavior of reinforced concrete short column with flange wall subjected to lateral loading has been studied experimentally and theoretically through twelve specimens. In which the shear span,the axial compression ratio and the width of the flange wall are taken as parameters, and the experiments are carried out under monotonic and cyclic lateral loading. In numerical analysis, the stress distribution and the effects of the parameters in elastic stage are obtained by the finite element program of 20-node 3-dimensional solid element. The mechanism of different failure modes appeared in tests has been analyzed and the relevant formula as the well as the boundary shear span ratio for each failure mode have been presented. It is shown that the flange wall can work together with the column and alters the failure mode of the latter, increase the capacity of shear strength of the column and decrease its capacity of deformation. The experiments agree well with the numerical computations and theoretical prediction.
机构地区 哈尔滨建筑大学
出处 《建筑结构学报》 EI CAS CSCD 北大核心 1996年第3期32-42,共11页 Journal of Building Structures
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参考文献11

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