中文摘要：

采用平面应力单元与薄板弯曲单元叠加方法构建平板壳单元,经低周反复加载的试验验证,表明能有效分析弹性阶段内短肢剪力墙的剪滞效应。有限元分析和试验结果均显示：在弹性阶段内,翼板截面上正应力分布不均匀,剪滞效应明显,腹板与翼板交界处易形成正应力集中;进入塑性阶段后,由于应力重分布,翼板截面上正应力分布更不均匀,最大正应力出现位置随着反复加载会出现变动。所以应务必给短肢剪力墙截面留出可应力重分布的余地,保证翼板的大部分截面随着塑性变形的发展能渐次发挥其全部的承载能力。

英文摘要：

The flat-shell element was constructed by the combination of plane stress element and thin plate bending element, it could be effectively used to analyze shear lag effect of short pier shear wall in the elastic stage proved by the low cyclic loading test. Test and finite element analysis showed that the normal stress distribution in the flange plate section was not even in the elastic stage, shear lag effect was obvious, normal stress concentration was easy to appear in the juncture of web and flange plate, normal stress distribution in the flange plate section was changed to more uneven and the maximum normal stress position was changed with the cyclic loading because of stress redistribution in the plastic stage. So, the flange plate section must keep space for stress redistribution to guarantee that the most part of the flange plate section can fully display the bearing capacity with the development of plastic deformation