摘要
论述了利用非线性静力分析方法和D值法计算结构刚度的差异,以及产生差异的原因。在目前国内理论计算或者实际工程中较常用的是D值法,但是经过计算分析发现用D值法计算出来的刚度与实际结构有很大的差异,并且D值法只能计算出结构弹性阶段的刚度,而当结构进入塑性状态,结构退化之后的刚度以及屈服位移,D值法则无能为力。为了比较两种方法在计算结构反应方面的差异,对一算例建立模型进行计算,结果表明,F模型具有更接近工程实际情况的优越性。
It is described the difference in computing structure's rigidity using method D and nonlinear static procdure,and why it can be so.At present in our nation,method D is used more often in theoretic computation and real projects.But using method D can only computes the elastic rigidity of a structure,while the structure is in plastic state,degradated rigidity can't be gained,not even the plastic displacement,so the model of steel-structure is superior to nonlinear static procedure in computing the rigidity of structure,which may be a consideration to native experts.
出处
《工业建筑》
CSCD
北大核心
2006年第z1期408-412,共5页
Industrial Construction
