EXPERIMENT AND FEM ANALYSIS ON THE SHEAR BEHAVIORS OF PROFILED METAL SHEETS
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摘要: 结合蒙皮板在实际工程的做法,对压型钢板采用自攻螺丝连接的受力蒙皮进行剪切性能试验。通过对蒙皮的破坏模式和极限抗剪承载力的分析,对板型、檩条间距对蒙皮抗剪性能的影响进行研究。并采用ANSYS对蒙皮板进行有限元分析,考虑几何大变形、连接件的滑移等非线性因素。将试验数据与有限元结果进行比较,研究结果表明,采用ANSYS分析受力蒙皮是可行的,可以用有限元方法来代替大量重复性试验。Abstract: Test program on the shear behavior of stressed skin diaphragm using profiled sheets connected by the self-tapping screws was carried out, which are constructed according to the detailing in practical engineering. The effects ofdifferent sheeting sections and purlin distances on the shear behavior of shin diaphragm were studied by analyzing the failuremodes and shear capacities of the panel. Finite element analysis of the experimental specimen was conducted by use of theANSYS package, considering nonlinearity caused by the large deflection and slip of fasteners. The experimental data werecompared with the results acquired by finite element analysis. Itwas provedthat ANSYS can be used to analyze the stressedskin diaphragm, and that finite element analysis can provide substitute method for the repeated full scale tests.
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Key words:
- profiled sheet /
- skin diaphragm /
- shear behavior /
- nonlinear finite element
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.ECCS. European Recommendations for the Application of Metal SheetingActing As a Diaphragm. European Convention for ConstructionalSteelwork. Brussels: 1995 .AISI. Design of Cold -Formed Steel Diaphragms(Draft). American Ironand Steel Institute, 1981 .Davies J M, Byan E R. Manual of Stressed Skin Diaphragm Design.Granada: 1982 .龙莉萍, 韦 松, 崔 佳. 自攻螺丝连接受力蒙皮体抗剪性能试验研究. 建筑结构学报,2004, 25(2):39-43 .乐延方, 姬广华, 柏树新. 受力蒙皮连接的抗剪性能试验研究. 南京建筑工程学院学报,1992, 21(2):50-59 .乐延方, 姬广华, 柏树新. 受力蒙皮性能试验研究. 南京建筑工程学院学报, 1992, 21(2): 60-72 .刘 洋. 轻钢结构蒙皮效应的理论与试验研究: [ 博士学位论文]. 上海: 同济大学, 2006
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