南澳大桥施工阶段风荷载影响分析

Influence Analysis of Wind During Construction Stage of Nan'ao Bridge

以近海区南澳大桥为例,研究矮塔斜拉桥结构自身动力特性并采用拟静力分析方法,分析结构最大施工风荷载响应规律和风载效应,并对施工过程中风致振动及最大允许风速对矮塔斜拉桥混凝土浇筑质量的影响进行分析及评价。

Taking Nan'ao Bridge as an example,the dynamic properties of low tower cable-stayed bridge have been investigated,by means of the pseudo static analysis method,the maximum construction wind load response law and wind load effect have been analyzed,and the wind-caused vibration and the influence to the concrete pouring quality under the maximum permitted wind speed for the low tower cable-stayed bridge during construction have also been analyzed and evaluated.