摘要
文章针对混凝土曲线箱梁桥转体施工预拱度的计算问题,结合一座支架现浇T型刚构桥梁,通过改变其计算模型中的平曲线半径、支架刚度、徐变模型,分析得到由恒载、预加力、收缩徐变及1/2静活载计算的预拱度的变化规律。
In light of the camber calculation of curved concrete bridge constructed by rotation method,curve radius,rigidity of bracket and creep formula in the calculation model of a T type rigid frame bridge built on bracket were changed,and then law of bridge camber,that caused by constant load,prestressing force,shrinkage,creep and half of static live load appeared through analysis.
出处
《企业技术开发》
2012年第2期20-23,共4页
Technological Development of Enterprise
关键词
曲线梁桥
转体施工
预拱度
curved bridge
rotation construction
bridge camber
