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A platform for research: civil engineering, architecture and urbanism
Construction method of large-span ultra-wide combined box girder bridge deck slab fiber concrete
The invention relates to a bridge construction technology, in particular to a construction method of large-span ultra-wide combined box girder bridge deck slab fiber concrete. Comprising the steps that a long-span bridge is divided into a sagging moment area and a hogging moment area in the longitudinal bridge direction, and is also divided into a sagging moment area and a hogging moment area in the transverse bridge direction according to the supporting condition of a bridge deck system; during bridge deck concrete construction, concrete of the longitudinal bridge direction sagging moment area block and the transverse bridge direction sagging moment area block is firstly constructed; concrete of a longitudinal bridge direction positive bending moment area block and a transverse bridge direction negative bending moment area block is constructed; concrete of a longitudinal bridge direction hogging moment block and a transverse bridge direction sagging moment block is constructed; finally, concrete of the longitudinal-bridge-direction hogging moment blocks and the transverse-bridge-direction hogging moment blocks is constructed; and when the time difference between the construction of each block and the construction starting time of the next adjacent block is more than one day, washing the constructed concrete interface with high-pressure water. By adopting the construction method, the adverse effect of concrete in the transverse bridge direction can be reduced.
本发明涉及桥梁施工技术，尤其涉及一种大跨度超宽组合箱梁桥桥面板纤维混凝土的施工方法。包括：将大跨度桥梁纵桥向分成正弯矩区和负弯矩区，横桥向根据桥面系的支承情况也分为正弯矩区和负弯矩区；桥面板混凝土施工时，先施工纵桥向正弯矩区区块、横桥向正弯矩区区块的混凝土；再施工纵桥向正弯矩区区块、横桥向负弯矩区区块的混凝土；再施工纵桥向负弯矩区块、横桥向正弯矩区区块的混凝土；最后施工纵桥向负弯矩区块、横桥向负弯矩区区块的混凝土；在每一个区块施工完成后与下一个毗邻区块施工开始的时间相差1天以上时，对施工完成的混凝土界面采用高压水冲刷。采用本方法施工能减少混凝土在横桥向的不利影响。
Construction method of large-span ultra-wide combined box girder bridge deck slab fiber concrete
The invention relates to a bridge construction technology, in particular to a construction method of large-span ultra-wide combined box girder bridge deck slab fiber concrete. Comprising the steps that a long-span bridge is divided into a sagging moment area and a hogging moment area in the longitudinal bridge direction, and is also divided into a sagging moment area and a hogging moment area in the transverse bridge direction according to the supporting condition of a bridge deck system; during bridge deck concrete construction, concrete of the longitudinal bridge direction sagging moment area block and the transverse bridge direction sagging moment area block is firstly constructed; concrete of a longitudinal bridge direction positive bending moment area block and a transverse bridge direction negative bending moment area block is constructed; concrete of a longitudinal bridge direction hogging moment block and a transverse bridge direction sagging moment block is constructed; finally, concrete of the longitudinal-bridge-direction hogging moment blocks and the transverse-bridge-direction hogging moment blocks is constructed; and when the time difference between the construction of each block and the construction starting time of the next adjacent block is more than one day, washing the constructed concrete interface with high-pressure water. By adopting the construction method, the adverse effect of concrete in the transverse bridge direction can be reduced.
本发明涉及桥梁施工技术，尤其涉及一种大跨度超宽组合箱梁桥桥面板纤维混凝土的施工方法。包括：将大跨度桥梁纵桥向分成正弯矩区和负弯矩区，横桥向根据桥面系的支承情况也分为正弯矩区和负弯矩区；桥面板混凝土施工时，先施工纵桥向正弯矩区区块、横桥向正弯矩区区块的混凝土；再施工纵桥向正弯矩区区块、横桥向负弯矩区区块的混凝土；再施工纵桥向负弯矩区块、横桥向正弯矩区区块的混凝土；最后施工纵桥向负弯矩区块、横桥向负弯矩区区块的混凝土；在每一个区块施工完成后与下一个毗邻区块施工开始的时间相差1天以上时，对施工完成的混凝土界面采用高压水冲刷。采用本方法施工能减少混凝土在横桥向的不利影响。
Construction method of large-span ultra-wide combined box girder bridge deck slab fiber concrete
一种大跨度超宽组合箱梁桥桥面板纤维混凝土的施工方法
XU WEIMIN (author) / LI PANSHAN (author) / YUMASA (author) / TAO YANJUN (author) / CHEN LIANG (author) / CHANG FUPING (author) / OU GUANGKUN (author) / JIANG YANG (author) / MI XIAOTING (author) / LIU CHUNXIANG (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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