摘要
为了较为准确地进行高层框架结构非线性动力时程分析,基于弯矩—曲率恢复力曲线,本文提出了一个较为准确的非线性杆件模型。弯矩—曲率恢复力曲线可以是任意的,而相应的单元刚度矩阵的建立较为简单。另外,本文还提出了用于动力时程分析的精确子结构方法。采用本文提出的方法,使得高层框架的直接动力分析能在微机长进行。
The nonlinear dynamic time history analysis of tall framed structures is presented in this paper. In order to reveal the nonlinear behavior of beams and columns of framed structures, a more exact nonlinear beam model based directly on moment-curvature hysteresis loops is proposed. The type of hysteresis loops can arbitrarily be chosen, and the corresponding element stiffness matrix can be built up in a simple way. An exact technique of substrutural nonlinear dynamic analysis is also presented. With the technique proposed, direct dynamic analysis of large tall building structures can be carried out in a micro-computer.
出处
《工程力学》
EI
CSCD
1990年第2期62-70,共9页
Engineering Mechanics
关键词
框架
高层
非线性
动力
时程
Tall frame, Nonlinear, Dynamic time history analysis.
