钢管混凝土大底盘高层建筑的反应谱分析

Reaction Spectrum Analysis of the Big Underpan High Buildings with Concerete-filled Steel Tubular Structure

通过建立钢管混凝土二阶段连续体计算模型,求解基于钢管混凝土大底盘建筑的二次偏微分动力方程。应用反应谱理论求解其在地震作用下的结构动力响应,得到了结构的圆频率、位移、总剪力、总弯矩等表达式。

Through establishing the apart-holist ic model of concrete-filled steel tubular structure,the quadratic differential c oefficient equations of the big underpan tall building with concrete-filled st eel tubular structure are solved.Using the reaction spectrum,the authors quadr atured the dynamic reactions with different seismic spectrums,and derived the stochastic score formulas of frequencies,displacements,total shearing forces a nd total bending moments,etc.