桥梁施工临时结构强度和稳定性分析

Strength and Stability Analysis of Temporary Structures in Bridge Construction

桥梁施工临时结构作为桥梁主体结构辅助设施,在桥梁施工中起着举足轻重的作用。桥梁施工临时结构设计影响着桥梁施工的安全、成桥阶段的受力和成桥线形的形成。基于Midas civil有限元程序对万能杆件塔架临时结构进行分析,采用两种情况下的屈曲分析结果,得到不同的临界荷载系数,以此判别杆件塔架的强度和稳定性是否满足要求。这对未来桥梁工程中临时结构的合理设计和安全施工都具有一定的经济价值和指导意义。

As an auxiliary facility of the main structure of the bridge,the temporary structure in bridge construction plays an important role in bridge construction.The design of temporary structure in bridge construction affects the safety of bridge construction,the stress in bridge completion stage and the formation of bridge alignment.In this paper,based on Midas civil finite element program,the temporary structure of universal member tower is analyzed,in which the buckling analysis in two cases is used and different critical load coefficients are obtained to judge whether the strength and stability of universal member tower meet the requirements.It has certain economic value and guiding significance for the reasonable design and safe construction of temporary structures in future bridge engineering.