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A platform for research: civil engineering, architecture and urbanism
Method for constructing superstructure of composite beam cable-stayed bridge
The invention discloses a method for constructing an upper structure of a composite beam cable-stayed bridge, which is based on the economical efficiency of a composite structure, gives full play to the rapid prototyping characteristic and the integral skeleton supporting function of steel structure bridge construction, eliminates the diseases frequently occurring in the construction process of bridges of the same type at the same time, and clarifies an internal force forming mechanism of the main beam of the composite beam cable-stayed bridge. According to the method, the tension condition of a main beam concrete member is eliminated in the prefabricated bridge deck slab and wet joint pouring process, so the overall cracking risk of concrete is completely eliminated; the stay cables are tensioned for the second time after the prefabricated bridge deck slab and the steel beam are combined, natural prestress is reserved for the bridge deck slab, and extra steel strand materials do not need to be used or a small amount of steel strand materials are used; under the condition that structural stress and material characteristics are fully utilized, the construction efficiency is greatly improved, the overall and local cracking risk of key components is eliminated, the investment of important equipment is reduced, the consumption of building materials is reduced, the construction cost of the whole process is reduced, and finally the construction level of the cable-stayed bridge of the same type is improved.
本发明公开了一种组合梁斜拉桥上部结构建造方法，基于组合结构的经济性，充分发挥钢结构桥梁建造自身具备的快速成型特性及整体骨架支撑功能，同时消除同类型桥梁建造过程中经常出现的病害，明晰组合梁斜拉桥主梁内力形成机制；本发明在预制桥面板及湿接缝浇筑过程中排除了主梁混凝土构件受拉情况，因此将混凝土整体开裂风险完全消除；本发明在预制桥面板与钢梁组合后进行的斜拉索第二次张拉，为桥面板储备天然的预应力而无需或少量使用额外的钢绞线材料；可在充分利用结构受力及材料特点的情况下，大大提高建造效率，排除关键构件整体及局部开裂风险，减少重要设备的投入，减少建筑材料耗费，降低全过程建造成本，最终提高同类型斜拉桥建造水平。
Method for constructing superstructure of composite beam cable-stayed bridge
The invention discloses a method for constructing an upper structure of a composite beam cable-stayed bridge, which is based on the economical efficiency of a composite structure, gives full play to the rapid prototyping characteristic and the integral skeleton supporting function of steel structure bridge construction, eliminates the diseases frequently occurring in the construction process of bridges of the same type at the same time, and clarifies an internal force forming mechanism of the main beam of the composite beam cable-stayed bridge. According to the method, the tension condition of a main beam concrete member is eliminated in the prefabricated bridge deck slab and wet joint pouring process, so the overall cracking risk of concrete is completely eliminated; the stay cables are tensioned for the second time after the prefabricated bridge deck slab and the steel beam are combined, natural prestress is reserved for the bridge deck slab, and extra steel strand materials do not need to be used or a small amount of steel strand materials are used; under the condition that structural stress and material characteristics are fully utilized, the construction efficiency is greatly improved, the overall and local cracking risk of key components is eliminated, the investment of important equipment is reduced, the consumption of building materials is reduced, the construction cost of the whole process is reduced, and finally the construction level of the cable-stayed bridge of the same type is improved.
本发明公开了一种组合梁斜拉桥上部结构建造方法，基于组合结构的经济性，充分发挥钢结构桥梁建造自身具备的快速成型特性及整体骨架支撑功能，同时消除同类型桥梁建造过程中经常出现的病害，明晰组合梁斜拉桥主梁内力形成机制；本发明在预制桥面板及湿接缝浇筑过程中排除了主梁混凝土构件受拉情况，因此将混凝土整体开裂风险完全消除；本发明在预制桥面板与钢梁组合后进行的斜拉索第二次张拉，为桥面板储备天然的预应力而无需或少量使用额外的钢绞线材料；可在充分利用结构受力及材料特点的情况下，大大提高建造效率，排除关键构件整体及局部开裂风险，减少重要设备的投入，减少建筑材料耗费，降低全过程建造成本，最终提高同类型斜拉桥建造水平。
Method for constructing superstructure of composite beam cable-stayed bridge
一种组合梁斜拉桥上部结构建造方法
XU CHUNRONG (author) / ZHANG DONG (author) / WANG XUEFENG (author) / CHEN CHANGSONG (author) / DONG DAOFU (author) / TANG BICHENG (author) / XIAO JUN (author) / PEI MINGHAI (author) / JIANG YUNFENG (author) / ZHANG FEI (author)
2021-12-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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