薄膜元理论在受扭构件强度和变形计算中的应用  

Application of Membrane-element Theory in Calculation of Strength and Deformation for Torsion Members

作　　者：闫肖武[1] 刘继明[2] 

机构地区：[1]淮海工学院,江苏连云港222005 [2]青岛理工大学,山东青岛266033

出　　处：《工程抗震与加固改造》2007年第2期33-36,共4页Earthquake Resistant Engineering and Retrofitting

摘　　要：本文对薄膜元理论在钢筋混凝土受扭构件中的应用进行了探讨,以变角空间桁架理论为基础,考虑混凝土的“受压软化”和“受拉强化”,用反复迭代的数值分析方法,模拟构件受力的全过程,并对构件的破坏荷载和变形进行了计算,理论分析结果与试验结果吻合较好。In this paper, the application of membrane-element theory in the calculation for torsion members is studied, which is based on variable-angle space truss theory, taking care of concrete＇s softening and tension stiffening. The whole-process of loaded member is simulated with iterafive numerical analysis method, and the capacity and deformation are calculated, which are compared with experimental results and shown to be in good agreement.

关 键 词：薄膜元理论 软化 受拉强化 全过程分析 

分 类 号：TU375[建筑科学—结构工程]