【摘要】 根据短肢剪力墙受力损伤及破坏的特点和规律,提出了墙端有限塑性域和墙端有限损伤域的概念。利用墙条纵向协调与横向组合和墙条在材料层次上的本构关系,建立了短肢剪力墙考虑地震损伤累积的单元力学模型。推导出了短肢剪力墙考虑损伤累积的墙元柔度矩阵,并根据该模型编制了基于柔度法弹塑性纤维单元的非线性有限元分析程序。通过算例分析得出了比较理想的结果,说明方法应用的可行性。更多还原

【Abstract】 Based on the deformation,stress,damage features and regularity of short-limb shear wall,the hypothesis of limited damage region and finite plastic region close to two ends is proposed.Taking advantage of longitudinal coordination and crosswise composition of stripe wall and material constitutive properties of the stripe wall,a mechanical model of seismic damage cumulation of the short-limb shear wall is established.The flexibility matrix of the short-limb shear wall with considering damage cumulation is set up.A nonlinear finite element analysis program is developed by using flexibility-based fiber element model.An example shows that the design method presented in this paper is feasible and gets ideal results.更多还原