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测试内填钢板上开圆形孔的非加劲钢板剪力墙的性能。根据板带模型提出一个有多种开圆形孔的内填钢板的抗剪强度模型。考虑几何和材料非线性建立有限元模型,分析两种不同长宽比的单层钢板剪力墙上的8种开孔模式,从而评估所提出的抗剪强度模型。非线性推覆分析和所提出的抗剪强度方程的比较结果显示两者较为一致。使用该模型来设计3个4层开孔剪力墙的端柱。通过比较预测的所选剪力墙端柱的设计荷载和通过非线性抗震分析得来的荷载,证明了可以预测柱设计荷载的简化模型的准确性。
Test the performance of a non-stiffened steel shear wall with a circular hole in the filler plate. According to the strip model, a shear strength model of the inner steel plate with many open circular holes is proposed. Considering the nonlinearity of geometry and material, a finite element model was established. Eight kinds of open-hole patterns on two single-wall shear walls with different aspect ratios were analyzed to evaluate the proposed shear strength model. The comparison between the nonlinear pushover analysis and the proposed shear strength equation shows that the two are in good agreement. The model was used to design three 4-layer perforated shear wall columns. The accuracy of a simplified model that can predict the column design load is demonstrated by comparing the predicted design load of the selected shear wall end column with the load obtained by nonlinear seismic analysis.