摘要
某新建高速公路上互通式立交匝道桥跨越已通车高速公路,采用钢箱梁悬臂顶推法施工。本文以该实际工程为例,介绍了悬臂顶推法施工方案,并采用大型有限元程序Midas计算了结构在五种最不利工况下的受力,得出在顶推施工过程中导梁位移偏大以及局部应力偏大,需对应予以加强。
The ramp bridge of interchange in a new highway which stride across passable highway have constructed with steel box girder cantilever pushing method. This article takes the actual project as an example, introduces the construction scheme of cantilever pushing construction, and calculates the stress of the structure under the five most unfavorable conditions with the large finite element program Midas,concludes that the displacement of guide beam is large and the local stress is large too which need to be strengthened.
出处
《科技信息》
2014年第13期327-328,346,共3页
Science & Technology Information
关键词
钢箱梁
悬臂顶推施工
受力分析
Steel box girder
Cantilever pushing construction
Stress analysis
