摘要
本文给出在承受比例加载或分段线性加载路径下,构成桁架的各单元具有分段线化的力与变形特性的一种桁架非线性分析的一种有效方法。只需计算线化段的端点效应,并由线性内插确定中间各点的效应。本文给出了每一线段的结构刚度矩阵和加载方向确定准则及全过程分析的迭代方法。
An efficient strategy to obtain static nonlinear restonse ispresented.It is applicable to trusses made up of elements with piecewise linear force-deformation characteristics and subject to-proportional loads or piecewise linear load paths. It only computesresponse at the ends of the linear segments and obtains intermediateresponse by linear interpolation.the strcture stiffness matrix and the load direction in each linear segment,and an iterative precedurebased on the entire precedure of nonlinear analysis.
出处
《河北建筑工程学院学报》
CAS
1996年第2期1-9,共9页
Journal of Hebei Institute of Architecture and Civil Engineering
关键词
非线性
分段线化
临界单元
加载方向
端点效应
nonlinear
piecewise linear
the critical element
the load-direction
response at the end