大跨連續(xù)鋼桁拱-梁組合體系橋梁在萬州長江鐵路大橋的應(yīng)用4P.pdf

大跨連續(xù)鋼桁拱-梁組合體系橋梁在萬州長江鐵路大橋的應(yīng)用

概要介紹萬州長江鐵路大橋因應(yīng)所處建設(shè)條件,主橋采用三跨連續(xù)鋼桁拱- 梁組合
體系橋梁新技術(shù)的方案比選情況、結(jié)構(gòu)布置及靜力分析結(jié)果;分析介紹了橫向剛度問題、穩(wěn)定問題
及橋面結(jié)構(gòu)的設(shè)計(jì)思路。
指出本橋的設(shè)計(jì)與建設(shè)將大跨度鐵路橋梁的發(fā)展推進(jìn)到更具多樣性選擇
的新層次。

This paper describes the comparison process , structural layout and static analysis of the 32span
hybrid system of continuous steel truss arch2girder selected for Wanzhou Changjiang River Railway Bridge in
order to accommodate the construction conditions at the Bridge site. The paper also analyzes issues of design
considerations for bridge transverse rigidity , stability and deck system structure design , and points out that the
design and construction of the Bridge will promote the long2span railway bridge to a new level of more choices.