Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of continuous steel box girder arch bridge and continuous steel box girder arch bridge
The invention provides a continuous steel box girder arch bridge construction method and a continuous steel girder arch bridge, and relates to the technical field of bridge engineering.The continuous steel box girder arch bridge construction method comprises the steps that bridge piers are installed, and side piers and middle piers are constructed; a beam falling step, wherein a steel box beam falls on the temporary supporting points of the side piers and the temporary supporting points of the middle piers; the additional pressure stress is applied, specifically, the steel box girder is bent to generate the additional pressure stress in the mode that the temporary supporting points of the side piers are used for jacking and the temporary supporting points of the middle piers are used for beam falling; and an arch structure mounting step: mounting an arch structure on the steel box girder. According to the construction method of the continuous steel box girder arch bridge, the steel box girder is forcibly displaced through the side piers and the middle piers, additional pressure stress is generated on the upper edge of the steel box girder, the tensile stress generated on the upper edge of the steel box girder during later operation of a continuous girder bridge arch structure is reduced, and then the tensile stress between a top plate of the middle pier and the steel box girder is reduced.
本发明提供了一种连续钢箱梁拱桥施工方法及连续钢梁拱桥，涉及桥梁工程技术领域，本发明提供的连续钢箱梁拱桥施工方法包括：桥墩安装步骤：施工边墩以及中墩；落梁步骤：将钢箱梁落于所述边墩的临时支撑点以及所述中墩的临时支撑点；施加附加压应力步骤：采用所述边墩的临时支撑点顶升、所述中墩的临时支撑点落梁的方式令所述钢箱梁弯曲产生附加压应力；拱结构安装步骤：在所述钢箱梁上安装拱结构。本发明提供的连续钢箱梁拱桥施工方法通过边墩和中墩使得钢箱梁发生强制位移，对钢箱梁上缘产生附加压应力，减少连续梁桥拱结构在后期运营时钢箱梁上缘产生的拉应力，进而减小中墩顶板与钢箱梁之间的拉应力。
Construction method of continuous steel box girder arch bridge and continuous steel box girder arch bridge
The invention provides a continuous steel box girder arch bridge construction method and a continuous steel girder arch bridge, and relates to the technical field of bridge engineering.The continuous steel box girder arch bridge construction method comprises the steps that bridge piers are installed, and side piers and middle piers are constructed; a beam falling step, wherein a steel box beam falls on the temporary supporting points of the side piers and the temporary supporting points of the middle piers; the additional pressure stress is applied, specifically, the steel box girder is bent to generate the additional pressure stress in the mode that the temporary supporting points of the side piers are used for jacking and the temporary supporting points of the middle piers are used for beam falling; and an arch structure mounting step: mounting an arch structure on the steel box girder. According to the construction method of the continuous steel box girder arch bridge, the steel box girder is forcibly displaced through the side piers and the middle piers, additional pressure stress is generated on the upper edge of the steel box girder, the tensile stress generated on the upper edge of the steel box girder during later operation of a continuous girder bridge arch structure is reduced, and then the tensile stress between a top plate of the middle pier and the steel box girder is reduced.
本发明提供了一种连续钢箱梁拱桥施工方法及连续钢梁拱桥，涉及桥梁工程技术领域，本发明提供的连续钢箱梁拱桥施工方法包括：桥墩安装步骤：施工边墩以及中墩；落梁步骤：将钢箱梁落于所述边墩的临时支撑点以及所述中墩的临时支撑点；施加附加压应力步骤：采用所述边墩的临时支撑点顶升、所述中墩的临时支撑点落梁的方式令所述钢箱梁弯曲产生附加压应力；拱结构安装步骤：在所述钢箱梁上安装拱结构。本发明提供的连续钢箱梁拱桥施工方法通过边墩和中墩使得钢箱梁发生强制位移，对钢箱梁上缘产生附加压应力，减少连续梁桥拱结构在后期运营时钢箱梁上缘产生的拉应力，进而减小中墩顶板与钢箱梁之间的拉应力。
Construction method of continuous steel box girder arch bridge and continuous steel box girder arch bridge
一种连续钢箱梁拱桥施工方法及连续钢箱梁拱桥
QIAN ZHEN (Autor:in) / CHEN XIAOGANG (Autor:in) / DOU XIANTAO (Autor:in) / LIU DEBAO (Autor:in) / LI KUAIRUO (Autor:in) / MA DEYI (Autor:in) / GAO XIYAN (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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