一种T形短肢剪力墙的墙元宏模型  

A wall element macro-model of T-shaped short-leg shear wall

作　　者：何西伟[1] 李青宁[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《工程建设》2008年第2期1-4,共4页Engineering Construction

基　　金：国家自然科学基金资助项目(批准号:10572107)

摘　　要：研究了短肢剪力墙的力学模型和计算方法,根据T形短肢剪力墙的受力和变形特点,提出一种10自由度的变形杆系广义墙元模型。考虑翼缘墙与腹板墙的空间耦合作用,运用虚功原理建立T形短肢剪力墙的单元刚度矩阵。为短肢剪力墙结构空间弹塑性分析提供了新的思路,这一宏模型摒弃了现有宏模型中平面假定的限制,不仅可以反映中和轴的移动,而且还可以反映初始截面的剪切翘曲。Mechanics model and calculation method for short - leg shear wall was studied, and a generalized wall element model on deformed bar with ten degrees of freedom was initiated in accordance with the stress and deformation characteristics of T - shaped short - leg shear wall. In consideration of space coupling action of flange wall and web wall, the element stiffness matrix of T - shaped short - leg shear wall was built up by applying virtual work principle. This provides a new thought for space elastic - plastic analysis of short - leg shear wall, this macro model gets rid of the restriction of plane assumption in existing macro - model, it can not only reflect the movement of neutralization axis, but also can reflect the shear warp of primary section.

关 键 词：短肢剪力墙 变形杆系 广义墙元 

分 类 号：TU375[建筑科学—结构工程]