RESEARCH ON STIFFNESS MATCHING RELATIONSHIP BETWEEN HORIZONTAL CORRUGATED STEEL PLATE AND FRAME COLUMN OF SHEAR WALL
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摘要: 为研究横波钢板剪力墙的力学性能并与平钢板剪力墙作对比,分别设计带有平钢板和横波钢板的剪力墙试件并进行拟静力试验。试验结果表明,横波钢板剪力墙的刚度、承载力和延性都大于平钢板剪力墙。剪力墙整体失稳破坏是由于边框柱面外刚度不足,内嵌钢板并未发挥出全部作用,两者之间匹配关系不合理。为研究内嵌钢板与边框柱之间的合理刚度匹配关系,采用ABAQUS有限元分析软件建立20个横波钢板剪力墙变参模型进行数值模拟,通过改变内嵌钢板的高宽比和边框柱的翼缘宽度来改变匹配刚度。对比模拟结果和试验结果得出:有限元分析结果和试验结果吻合度较高;当内嵌波形钢板的高宽比为2∶1且边框柱的翼缘宽度为150 mm时,匹配效果较优。Abstract: In order to study the mechanical properties of the horizontal corrugated steel plate shear wall, and to compare it with that of flat steel plate shear wall, the shear wall specimens with flat steel plate and horizontal corrugated steel plate were designed and the quasi-static test was carried out. The results showed that the stiffness, bearing capacity and ductility of horizontal corrugated steel plate shear wall were greater than those of flat steel plate shear wall. The overall instability of shear wall was due to the fact that the out-of-plane stiffness of the frame column was insufficient, while the embedded steel plate did not play its full role, and the matching relationship between them was unreasonable. In order to study the reasonable stiffness matching relationship between the steel plate and the frame column, the ABAQUS finite element analysis software was used to establish 20 variable parameter models of horizontal corrugated steel plate shear wall for numerical analysis. By changing the aspect ratio of the embedded steel plate and the flange width of the frame column, the matching stiffness between them were changed. Comparing the simulation results with the test results, it was indicated that finite element analysis results were in good agreement; when the aspect ratio of embedded corrugated steel plate was 2:1 and the flange width of frame column was 150 mm, the matching effect was better.
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