收缩徐变在连续梁桥施工参数敏感性分析中的应用

Application of Shrinkage and Creep in Sensitivity Analysis of Construction Parameters of Continuous Beam Bridge

在连续梁桥悬臂浇筑施工过程中,鉴于施工设计理论值与实际值之间存在误差不可避免,容易出现高程控制不力的情况,从而影响连续梁桥成桥线形和受力状态。从影响连续梁桥悬臂施工的不同系统参数研究开始,着重研究了混凝土材料的收缩徐变性质对于梁桥跨中挠度的影响,理论研究结果对于未来类似工程提供一定的理论经验。

In the process of cantilever pouring of continuous beam bridge,in view of the inevitable error between the theoretical value and the actual value of the construction design,it is prone to inadequate elevation control,which affects the alignment and stress state of the continuous beam bridge.Starting from the study of different system parameters that affect the cantilever construction of continuous beam bridges,the impact of the shrinkage and creep properties of concrete materials on the deflection of the beam bridge is focused on.The theoretical research results provide certain theoretical experience for similar projects in the future.