格构式支架整体稳定分析与设计建议

Suggestions for Overall Stability Analysis of Lattice Type Support and Design

为研究格构式支架结构的整体稳定性,根据弹性稳定理论,对格构式支架采用了按实腹式等效并考虑剪切刚度的方法进行了理论分析,并在分析过程中推导了计算临界荷载的理论公式,采用通用有限元软件对推导出的理论公式进行验证,根据推导的公式,给出了在桥梁工程施工中优化设计格构式支架的建议,以供相关人员参考。

In order to study the overall stability of the structure of lattice type support, according to the elastic stability theocy, the theoretical analysis on the lattice type support is made by adopting the method according to solid -web equivalence and considering the shearing rigidity, the theoretical formula that calculates the critical load is derived during the procedure of analysis, and the verification on the theoretical formula derived is made by adopting the common finite element software. According to the formula derived, the suggestions for the optimization design of lattice type support during the construction of bridge engineering are given, so as to provide reference for relevant personnel.