高速公路桥梁扩宽施工技术应用分析

Analysis on the Application of Expressway Bridge Widening Construction Technology

高速公路通行压力随汽车通行量的增大而不断增大,公路桥梁交通运行组织能力的弱化严重制约了公路功能的发挥。桥梁扩宽改造工程不仅能有效降低建设成本,减少交通使用空间,而且能改善交通服务,延长桥梁使用寿命。新、旧桥梁拼宽施工技术是桥梁扩宽关键内容,直接影响桥梁结构运营稳定性和安全性。文章依托某高速公路箱梁桥扩宽项目进行施工技术应用研究,着重对新、旧桥梁拼接构造及施工工艺进行具体分析,以便为类似工程建设提供参考。

The traffic pressure on expressways continues to increase with the increase of vehicle traffic flow,and the weakening of traffic operation organization ability of highway bridges seriously restricts the function of the highway.The bridge widening reconstruction engineering can not only effectively reduce construction cost,reduce traffic space,but also improve the traffic service and prolong the service life of the bridge.The splicing and widening construction technology of new and old bridges is the key content of bridge widening,which directly affects the stability and safety of bridge structure operation.Based on the construction technology application research of an expressway box girder bridge widening project,this paper focuses on the specific analysis of the splicing structure and construction technology of new and old bridges,so as to provide reference for similar engineering construction.