基于精确柔度矩阵的多肢剪力墙-框架体系的抗震分析方法

Earthquake Resistance Analysis for the Multiple Shear Wall-frame System Using the Method of Exact Flexibility Matrix

本文在框架-剪力墙侧移公式的基础上建立结构的柔度矩阵,确定结构的自振周期和振型,采用静力方法按实际的地震作用分布计算结构的作用效应,然后采用振型分解反应谱法对结构进行抗震分析。编制了适用于多肢剪力墙-框架体系抗震分析的微计算机程序WFERA—1,用计算实例对本文和一些常用方法算得的结果进行了分析和讨论。

According to the lateral deflection equation of the wall frame-structure ,an exact flexibility matrix is developed first and, then, the natural period and vibration mode of the wall-frame structure is defermined in this paper. According to actual earthquake action, the structural response is calculated with statical analysis. Then,a earthquake resistance analysis is performed using the vibration mode decomposition and response spectrum method. Moreover, a program for earthquake resistance analysts of the multiple shear wall-frame system WFERA- I is presented. A illustrative calculation is presented to analyse and discuss the results obtained by using the method advanced in this paper and some routine methods.