提出一种新型钢板剪力墙结构-钢管束组合剪力墙。对7组钢管束组合剪力墙在往复荷载作用下的性能进行试验研究，分析其滞回曲线及骨架曲线，并对墙体变形能力及钢板应变性能进行了分析，研究墙体在不同阶段破坏形态。同时以该试验为基础，采用ABAQUS有限元软件分析钢管束组合剪力墙的力学性能。研究结果表明：钢管束组合剪力墙具有较高的承载力和良好的抗震性能，滞回曲线饱满。对不同钢管束截面，钢板厚度，剪跨比以及是否布置栓钉等参数进行了分析，对比其受力模式。通过试验现象、应力应变分析及有限元分析可以看出，试件最终破坏多为墙体下部出现钢板受压屈曲或受拉撕裂及混凝土压溃。
Abstract
A new type of steel plate shear wall—steel tube bundle composite shear wall was put forward. Seven steel tube bundle composite shear walls were tested under cycle load, and their hysteretic curves and skeleton curves were analyzed. The deformation property and strain performance of walls as well as their failure modes under different stages were researched. Based on the experiments, the mechanical property of the composite shear wall was simulated by ABAQUS. Research results showed that the steel tube bundle composite shear wall had high bearing capacity and good seismic performance. In order to compare their bearing mode, different parameters including the section of steel tube bundle, the thickness of steel plate, the shear span ratio and whether the stud was decorated were analyzed. Experiment phenomenon, stress-strain analysis and finite element simulation showed that the eventual damage of the specimens usually came from the compression buckling or tension torn of the steel plate and the concrete crushing at the lower part of the walls.
关键词
钢管束组合剪力墙 /
试验研究 /
变形分析 /
破坏形态 /
有限元分析
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Key words
steel tube bundle composite shear wall /
experimental study /
deformation analysis /
failure mode /
finite element analysis
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