85 m小曲线半径匝道桥T梁安装施工技术  

Installation and Construction Technology of T-beam for 85 m Small Curve Radius Ramp Bridge

作　　者：唐智华 谢俊红 Tang Zhihua;Xie Junhong(The Fourth Contract Section of Civil Engineering for Hunan Zhitong Expressway,Changsha,China)

机构地区：[1]湖南省芷铜高速公路土建第四合同段,湖南长沙

出　　处：《科学技术创新》2024年第4期171-174,共4页Scientific and Technological Innovation

摘　　要：芷铜高速第四合同段D匝道2号桥为小半径曲线匝道桥,介绍了小曲线半径匝道桥在T梁架设安装上实现喂梁与过跨,通过合理选用架桥机设备,优化调整T梁架梁施工工艺,使在85 m小曲线半径上架桥机过跨、在10 m桥面宽上喂梁过程中安全得以保证,为山区高速公路同类型施工环境下的小曲线半径匝道桥T梁安装提供借鉴意义。The second bridge of D-ramp in the fourth contract section of Zhitong Expressway is a small radius curved ramp bridge.This article introduces the implementation of beam feeding and crossing in the installation of T-beams for the small radius curved ramp bridge.By reasonably selecting bridge erecting equipment and optimizing and adjusting the construction process of T-beam erecting,the safety of the bridge erecting machine crossing the span on the 85 m small curved half diameter and feeding the beam on the 10m bridge deck width can be ensured,Provide reference significance for the installation of T-beams on small curve radius ramp bridges in the same type of construction environment for mountainous highways.

关 键 词：芷铜高速 T梁 小曲线半径 过跨 喂梁 施工技术 

分 类 号：U445[建筑科学—桥梁与隧道工程]