大跨径钢桥面铺装优化研究

Study on Optimal Deck Pavement of Long Span Steel Bridge

大跨径钢桥面铺装包括铺装层、钢桥面板、加劲肋和横隔板4个主要组成部分,在初步设计时,其各个部分结构的尺寸及相互之间的关系通常是借鉴以往的设计经验,因而难免造成材料的浪费,故进行优化分析是非常必要的。以润扬长江公路大桥为背景,对钢桥面铺装结构进行静力优化研究,以期得出静力性能优良且具有较高经济指标的最合理的结构形式。

The longspan steel bridge deck pavement is mainly composed of asphalt concrete surfacing,steel bridge deck,ribs and diaphragms.Since experience is always used for reference to determine the dimension of the main parts and it is inevitable to waste the materials,so optimum analysis in the preliminary design stage is very necessary.The optimun analysis of long span bridge deck pavement with the Runyang Yangtze River Bridge as example is presented in this paper to get optimal cost effective pavement structure.