斜拉桥成桥状态温度影响分析

斜拉桥成桥状态温度影响主要包括整体温差、索梁温差、主梁及桥塔日照温差的影响.文章以涪陵乌江二桥主跨340 m的混凝土斜拉桥为研究对象,分析温度对成桥状态的影响.研究表明,整体温差对主梁标高和斜拉索的索力影响很小,索梁温差、主梁及桥塔日照对主梁标高和索力的影响较大,且各自规律不同.这些分析结果可为同类桥梁合理成桥状态的设计提供参考.

An Analysis on the Temperature Effects on Cable Stayed Bridge

The temperature effects on cable stayed bridge include temperature range of the whole bridge,the girder,the main bridge and bridge tower.Taking the 340m concrete cable stayed bridge of Fuling Wu River No.2 bridge as study object,the article mainly focus on analyzing the effects on bridge forming.The study shows that holistic temperature range has little influence on main girder level and the force of stayed cable.The temperature range of the girder,the main bridge and bridge tower has a big influence on the force of stayed cable,and has different principles.This result gives reference to similar bridge forming design.