四斗河特大桥跨S332省道连续梁承重支架施工技术研究

Study on Construction Technology of Bearing Bracket of Continuous Beam across S332 Provincial Highway of Sidouhe Great Bridge

对蒙华铁路四斗河特大桥跨S332省道连续梁高宽比较大的承重支架设计、施工技术进行了研究与探讨;针对现场施工荷载、连续梁自重进行了计算分析,选择了安全、经济的支架方案;详细阐述了承重支架的设计选型、所采用的搭拆施工技术及取得的应用效果,所取得的经验可为类似桥梁承重支架的设计、施工提供借鉴。

This paper studies and discusses the design and construction technology of bearing bracket of continuous beam across S332 provincial highway of Sidouhe Great Bridge of Haolebaoji-Ji'an Railway with large height-width ratio;calculates and analyzes the field construction load and the self weight of continuous beam,and selects safe and economic bracket scheme;expounds in detail the design selection of bearing bracket,the construction technology adopted and the application effect achieved.The experience can be used as reference for the design and construction of similar bridge bearing bracket.