基于分析法的非弹性动力响应

Inelastic Dynamic Response Based on Force Analogy Method

力分析法通过改变结构位移 ,而不是变刚度来进行非弹性分析 .它将每个非弹性变形看作一个自由度 ,使全部非弹性响应可用一个简单方程表示 .由于它仅需计算初始刚度 ,提高了方法的效率 .同时 ,它对应变硬化材料 ,理想弹塑性材料 。

Inelastic analysis is performed by varying the structural displacement,which differs from the conventional method of changing stiffness.,Each inelastic deformation of structure is denoted as a degree of freedom, therefore all inelastic behaviors are represented by a single equation.The method is very efficient because only initial stiffness is used.Moreover,it can be used to analyze structure with various properties.not only strain hardening properties but also elastic plastic properties and strain softening properties.