【摘要】 本文介绍了一种计算桁架结构安定(Shakedown)荷载的方法.该方法以结构的弹性变形作为残余力的虚位移来建立残余力的虚功方程,给出了为获得基本虚功方程而在桁架上施加虚力的规则,最终得到一个求解桁架安定荷载的线性规划模型.更多还原

【Abstract】 In this paper,a new method for solving shakedown load λ_s fortruss is introduced.The virtual work equations of residual force are set up bytaking the elastic deformations of the truss as virtual displacement of resi-dual force,and rule applying virtual force to truss for getting elementaryvirtual work equation is presented.So a linear programming model is ob-tained.This method is simple and clear.It is especially suitable for compu-tational analysis.更多还原