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中文摘要：
基于谐波叠加法模拟生成风速时程并转化为风压时程;采用ANSYS建立结构有限元模型,施加模拟所得的风压时程,计算分析结构风致动力效应;给出风振动力放大因子定义,将其与基于特定时刻的结构瞬时风压分布相结合,进而提出等效静风荷载新内涵.运用数值模拟分析,给出了基于结构立柱基底竖向反力和桁架跨间位移的等效静风荷载.
英文摘要：
The time-history of wind velocity was simulated by using the harmonic superposition method,which was then turned into pressure time-history of wind.By using the ANSYS software,the FEM model for the structural system was constructed,and the structural wind-induced vibration responses under different incoming winds were calculated by using the simulated wind pressure time-history.Moreover,a novel equivalent static wind load was established,where the wind-induced dynamic amplification factor was combined with the instantaneous wind pressure distribution at a specific time.Finally,from numerical examples,the equivalent static wind load distribution based on the minimum vertical reaction forces and the maximum nodal displacement of the truss were obtained.
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