秦皇岛港煤堆场防风网结构风振响应分析

采用有限元方法对秦皇岛港煤堆场防风网结构在风荷载作用下的静、动力响应进行分析。在静力分析中,采用规范方法计算风荷载,通过有限元方法进行静力计算。在动力分析中,采用风压谱生成风荷载作用时程,通过有限单元方法进行动力响应计算。结果表明,采用规范方法计算风荷载,并考虑1.4的风荷载分项系数后的静力计算结果与采用风压谱生成风荷载作用时程的动力计算结果相近。

Response Analysis on Wind Excitation of Windbreak Structure around Coal Store Yard of Qinhuangdao Port

The static and dynamic response analyses on wind excitation of the windbreak structure around the coal store yard of Qinhuangdao Port are conducted.In the static analysis,the wind pressures are calculated by the criterion method and the static response of the windbreak to wind is calculated by finite element method.In the dynamic analysis,the history of wind pressure is generated from wind spectrum and the dynamic response of the windbreak to wind is also calculated by finite element method.It is shown that the results obtained by the static analysis will approximate to the results obtained by the dynamic analysis if the wind pressure times a coefficient 1.4 in the static analysis.