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Nonlinear buckling analysis of steel plate shear walls with trapezoidally-corrugated and perforated infill plates

机译:具有梯形波纹和穿孔填充板的钢板剪力墙非线性屈曲分析

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Based on considerable out-of-plane stability of corrugated plates, such plates can be considered as viable alternatives to unstiffened and stiffened steel plates in structural systems such as steel plate shear walls (SPSWs). This study investigates the effects of variation of corrugation parameters and inclusion of infill plate opening on the structural performance of trapezoidally-corrugated SPSWs under monotonic loading through finite element simulation using ANSYS. Buckling stability, stiffness, strength, and ductility performances of numerous SPSW models developed based on web-plate thickness, corrugation angle, and opening size parameters are investigated. Square openings are implemented at the center of the infill plates with areas equal to 5, 10, 15, 20, 25, and 30 percent of the web-plate out-of-plane projected area. The accuracy of the finite element modeling is verified through comparison of numerical and experimental results. Findings of this study show that proper design of the boundary frame members and optimal selection of the web-plate thickness as well as corrugation parameters can result in desirable performance of steel shear walls with trapezoidally-corrugated and perforated infill plates, particularly despite the detrimental effects of web-plate opening, as partly shown in this paper.
机译:基于瓦楞板的相当大的面外稳定性,这种板可以被认为是可行的替代品,在诸如钢板剪切墙(SPSWS)之类的结构系统中的不稳定和加强的钢板。本研究调查了波纹参数变化的影响,并在单调型加载下通过使用ANSYS进行有限元模拟在单调加载下的梯形瓦楞SPSW的结构性能的影响。研究了基于网板厚度,波纹角和开口参数开发的许多SPSW模型的弯曲稳定性,刚度,强度和延展性性能。方形开口在填充板的中心实施,区域等于5,10,15,20,25和30%的网板外平面投影区域。通过比较数值和实验结果来验证有限元建模的准确性。该研究的结果表明,边界框架构件的适当设计和覆盖板厚度的最佳选择以及波纹参数可以导致钢制剪切壁的理想性能,具有梯形波纹和穿孔填充板,特别是尽管有不利影响如本文所示的纸板开口。

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