梁启智, 李逊. 框架结构非线性动力时程分析的一个方法[J]. 工程力学, 1990, 7(2): 62-70.
引用本文: 梁启智, 李逊. 框架结构非线性动力时程分析的一个方法[J]. 工程力学, 1990, 7(2): 62-70.
Liang Qizhi, Li Xun. A METHOD FOR THE NONLINEAR DYNAMIC TIME HISTORY ANALYSIS OF TRAME STRUCTURES[J]. Engineering Mechanics, 1990, 7(2): 62-70.
Citation: Liang Qizhi, Li Xun. A METHOD FOR THE NONLINEAR DYNAMIC TIME HISTORY ANALYSIS OF TRAME STRUCTURES[J]. Engineering Mechanics, 1990, 7(2): 62-70.

框架结构非线性动力时程分析的一个方法

A METHOD FOR THE NONLINEAR DYNAMIC TIME HISTORY ANALYSIS OF TRAME STRUCTURES

  • 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。

     

    Abstract: 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.

     

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