A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hoisting construction process for main bridge of cable-stayed steel box girder bridge
The invention relates to a hoisting construction process for a main bridge of a cable-stayed steel box girder bridge, the main bridge of the cable-stayed bridge adopts a steel box girder structure, the main bridge is supported by a first bridge abutment, a main pier, an auxiliary pier and a second bridge abutment in sequence from left to right in the longitudinal direction, and the lower end of a cable tower of the cable-stayed bridge is positioned on the main bridge above the main pier; the cable-stayed bridge construction process comprises the working procedures of trestle construction, main bridge construction, cable bent tower construction and cable construction. In the construction process of the main bridge, the temporary supporting set is adopted for auxiliary construction, the composition structure and the erection position of the temporary supporting set fully combine parameters of the laying sequence of the main bridge and the position of the cable bent tower, and the overall layout of the temporary supporting set is more scientific; in the construction process of the cable bent tower, back cables need to be adopted for tensioning step by step, and finally permanent back cables are installed, so that the safety of the cable bent tower in the construction process is guaranteed; in addition, when the tower top section of the cable bent tower is constructed, a bridge floor arch rib supporting set needs to be additionally arranged, and the safety and stability of the whole cable bent tower are guaranteed when the tower top section is installed.
本发明涉及一种斜拉钢箱梁桥主桥吊装施工工艺，所述斜拉桥的主桥采用钢箱梁结构，主桥从纵向上自左向右依次由第一桥台、主墩、辅助墩及第二桥台支承，斜拉桥的索塔下端位于主墩上方的主桥上，所述斜拉桥施工工艺包括栈桥施工、主桥施工、索塔施工和拉索施工工序；主桥在施工过程中采用临时支撑组进行辅助施工，临时支撑组的组成结构和架设位置充分结合了主桥的铺设顺序、索塔位置的参数，使得临时支撑组的整体布局更加科学；索塔在施工过程中需要逐级采用背索张拉，最终才安装永久背索，保证索塔施工过程中的安全性；此外索塔的塔顶节段施工时需要额外增加桥面拱肋支撑组，保证索塔整体在塔顶节段安装时的安全性和稳定性。
Hoisting construction process for main bridge of cable-stayed steel box girder bridge
The invention relates to a hoisting construction process for a main bridge of a cable-stayed steel box girder bridge, the main bridge of the cable-stayed bridge adopts a steel box girder structure, the main bridge is supported by a first bridge abutment, a main pier, an auxiliary pier and a second bridge abutment in sequence from left to right in the longitudinal direction, and the lower end of a cable tower of the cable-stayed bridge is positioned on the main bridge above the main pier; the cable-stayed bridge construction process comprises the working procedures of trestle construction, main bridge construction, cable bent tower construction and cable construction. In the construction process of the main bridge, the temporary supporting set is adopted for auxiliary construction, the composition structure and the erection position of the temporary supporting set fully combine parameters of the laying sequence of the main bridge and the position of the cable bent tower, and the overall layout of the temporary supporting set is more scientific; in the construction process of the cable bent tower, back cables need to be adopted for tensioning step by step, and finally permanent back cables are installed, so that the safety of the cable bent tower in the construction process is guaranteed; in addition, when the tower top section of the cable bent tower is constructed, a bridge floor arch rib supporting set needs to be additionally arranged, and the safety and stability of the whole cable bent tower are guaranteed when the tower top section is installed.
本发明涉及一种斜拉钢箱梁桥主桥吊装施工工艺，所述斜拉桥的主桥采用钢箱梁结构，主桥从纵向上自左向右依次由第一桥台、主墩、辅助墩及第二桥台支承，斜拉桥的索塔下端位于主墩上方的主桥上，所述斜拉桥施工工艺包括栈桥施工、主桥施工、索塔施工和拉索施工工序；主桥在施工过程中采用临时支撑组进行辅助施工，临时支撑组的组成结构和架设位置充分结合了主桥的铺设顺序、索塔位置的参数，使得临时支撑组的整体布局更加科学；索塔在施工过程中需要逐级采用背索张拉，最终才安装永久背索，保证索塔施工过程中的安全性；此外索塔的塔顶节段施工时需要额外增加桥面拱肋支撑组，保证索塔整体在塔顶节段安装时的安全性和稳定性。
Hoisting construction process for main bridge of cable-stayed steel box girder bridge
一种斜拉钢箱梁桥主桥吊装施工工艺
ZHU HONGPING (author) / CHEN CHAOJUN (author) / WENG SHUN (author) / ZHOU RUI (author) / GU CHAO (author) / TANG HAIBO (author) / DAI LINLING (author) / JI MINGCHENG (author) / GU ZHENGTAO (author) / LI ZHAO (author)
2024-03-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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