本文以云南山区高速公路项目连续刚构桥为例,针对刚构桥合龙温度应力进行建模及手工计算分析,经综合分析后提出合龙段劲性骨架优化设计方案,以确保合龙段的线型及结构体系转换的安全性,给类似连续刚构桥合龙段劲性骨架设计和施工提供了参考,以保证施工安全和项目的顺利进行。 In this paper, taking the continuous rigid frame bridge of Yunnan Mountain Expressway as an example, the temperature stress of the rigid frame bridge is modeled and manually calculated and analyzed. After the comprehensive analysis, the optimum design scheme of the closed skeleton stiffness skeleton is proposed to ensure the linear type And the safety of the structural system conversion, which provides a reference for the design and construction of the similar stiffening frame of the continuous rigid frame bridge in order to ensure the construction safety and the smooth progress of the project.