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A platform for research: civil engineering, architecture and urbanism
Rigid frame bridge side span construction method using bracket and hanging basket
The invention provides a rigid frame bridge side span construction method using a bracket and a hanging basket, relates to the technical field of bridge construction, and can solve the problems of pier body deviation and bridge service life prolonging. The method comprises the steps that a bracket stress system is built on one side of a transition pier; a sand bucket unloading device is mounted on the upper surface of the bracket stress system; a side span cast-in-place section supporting system is installed on the sand bucket unloading device; a side span cast-in-place section bottom die system is installed on the side span cast-in-place section supporting system; a supporting beam of the side span cast-in-place section supporting system extends into the bottom basket of the hanging basket of the suspended pouring block section, and lap joint is completed; and a closure section formwork system is installed on the bottom basket of the hanging basket, side span cast-in-place section closure opening locking, steel bar binding, prestressed tendon tensioning and closure section concrete pouring are carried out. Through the construction bracket stress system, high-altitude welding and a large amount of installation operation are not needed, a structure which influences the appearance and durability of the pier body does not need to be pre-buried in the pier body, and the construction bracket stress system has the advantages of being easy and convenient to construct, simple in structure and capable of remarkably improving the construction efficiency.
本公开提供了一种利用托架与挂篮的刚构桥边跨施工方法，涉及桥梁施工技术领域，能够解决解决墩身偏位和延长桥梁寿命的问题。包括：在过渡墩一侧构建托架受力体系；在托架受力体系的上表面安装卸载砂桶装置；在卸载砂桶装置上安装边跨现浇段支撑体系；在边跨现浇段支撑体系上安装边跨现浇段底模系统；将边跨现浇段支撑体系的支撑梁伸入悬浇块段的挂篮底篮并完成搭接；在挂篮底篮上安装合拢段模板系统，并进行边跨现浇段合拢口锁定、绑扎钢筋、张拉预应力筋、浇筑合拢段混凝土。本公开通过施工托架受力体系，既无需高空焊接和大量安装作业，也无需在墩身预埋影响墩身外观和耐久性构造，具有施工简便、结构简单、显著提高施工效率的优点。
Rigid frame bridge side span construction method using bracket and hanging basket
The invention provides a rigid frame bridge side span construction method using a bracket and a hanging basket, relates to the technical field of bridge construction, and can solve the problems of pier body deviation and bridge service life prolonging. The method comprises the steps that a bracket stress system is built on one side of a transition pier; a sand bucket unloading device is mounted on the upper surface of the bracket stress system; a side span cast-in-place section supporting system is installed on the sand bucket unloading device; a side span cast-in-place section bottom die system is installed on the side span cast-in-place section supporting system; a supporting beam of the side span cast-in-place section supporting system extends into the bottom basket of the hanging basket of the suspended pouring block section, and lap joint is completed; and a closure section formwork system is installed on the bottom basket of the hanging basket, side span cast-in-place section closure opening locking, steel bar binding, prestressed tendon tensioning and closure section concrete pouring are carried out. Through the construction bracket stress system, high-altitude welding and a large amount of installation operation are not needed, a structure which influences the appearance and durability of the pier body does not need to be pre-buried in the pier body, and the construction bracket stress system has the advantages of being easy and convenient to construct, simple in structure and capable of remarkably improving the construction efficiency.
本公开提供了一种利用托架与挂篮的刚构桥边跨施工方法，涉及桥梁施工技术领域，能够解决解决墩身偏位和延长桥梁寿命的问题。包括：在过渡墩一侧构建托架受力体系；在托架受力体系的上表面安装卸载砂桶装置；在卸载砂桶装置上安装边跨现浇段支撑体系；在边跨现浇段支撑体系上安装边跨现浇段底模系统；将边跨现浇段支撑体系的支撑梁伸入悬浇块段的挂篮底篮并完成搭接；在挂篮底篮上安装合拢段模板系统，并进行边跨现浇段合拢口锁定、绑扎钢筋、张拉预应力筋、浇筑合拢段混凝土。本公开通过施工托架受力体系，既无需高空焊接和大量安装作业，也无需在墩身预埋影响墩身外观和耐久性构造，具有施工简便、结构简单、显著提高施工效率的优点。
Rigid frame bridge side span construction method using bracket and hanging basket
一种利用托架与挂篮的刚构桥边跨施工方法
LIU GUANGHUI (author) / YANG HONG (author) / LIU SHENGCAI (author)
2021-10-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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