论文部分内容阅读
本文提出了一种用于高层建筑弹塑性地震反应分析的杆系——层间模型。作者主要提出以下几点: (1)推广了吉伯森单分量模型,推导了考虑材料非线性和几何非线性的带刚域杆件的单元刚度矩阵,可以同时考虑轴向、剪切和弯曲变形;(2)推导了考虑框架与剪力墙协同工作的三个自由度的空间刚度矩阵,每层有二个位移分量和一个转角;(3)推导了六个自由度的空间刚度矩阵,每层有三个位移分量和三个转角。同时,提出一种过渡刚度的概念来处理滞回环的弹塑性转换。按照上述模型编制了计算机程序并已用于一些高层建筑设计中。
In this paper, a rod-interlayer model for elasto-plastic seismic response analysis of high-rise buildings is proposed. The author mainly proposes the following points: (1) Gibson’s single-component model is generalized, and a unit stiffness matrix with rigid-domain members considering material nonlinearity and geometric nonlinearity is deduced, and axial, shear and bending can be considered simultaneously. Deformation; (2) Derived the three-degree-of-freedom spatial stiffness matrix considering the cooperation of the frame and the shear wall, each layer has two displacement components and one rotation angle; (3) Deduced the spatial stiffness matrix of six degrees of freedom, Each floor has three displacement components and three corners. At the same time, a concept of transitional stiffness is proposed to deal with the elastic-plastic transition of the hysteresis loop. Computer programs have been programmed according to the above model and have been used in some high-rise building designs.