A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Splicing structure of existing large-span double-amplitude cast-in-place box girder bridge and construction method of splicing structure
The invention discloses a splicing structure of an existing large-span double-amplitude cast-in-place box girder bridge and a construction method of the splicing structure, the splicing structure comprises a bridge deck slab central splicing belt and a double-amplitude splicing box type cross beam, the bridge deck slab central splicing belt is arranged in the center of the existing double-amplitude bridge, and the double-amplitude splicing box type cross beam is arranged in the bridge deck slab central splicing belt; the bridge deck slab central splicing belt is formed by implanting post-planted steel bars into the inner side of a bridge deck slab cantilever on the inner side of the existing double-amplitude bridge and then pouring concrete, and the poured bridge deck slab central splicing belt serves as a part of a bridge deck and is flush with the existing bridge deck; the double-width splicing box type cross beam is located below the bridge deck slab center splicing belt and used for bearing a bridge deck, the double-width splicing box type cross beam is formed by implanting post-planting steel bars into webs on the inner side of an existing double-width bridge and the lower edge of a top plate and then pouring concrete, and the double-width splicing box type cross beam and a bridge box beam of the existing double-width bridge are equal in height. The splicing structure is safe and reliable in stress and has small influence on a main body structure. The invention further discloses a construction method comprising the splicing structure.
本发明公开了一种既有大跨径双幅现浇箱梁桥的拼接结构及其施工方法，该拼接结构包括桥面板中央拼接带和双幅拼接箱型横梁，桥面板中央拼接带设置在既有双幅桥的中央，所述桥面板中央拼接带通过在既有双幅桥内侧的桥面板悬臂内侧植入后植钢筋、然后浇筑混凝土形成，浇筑后的桥面板中央拼接带作为桥面的一部分，与既有桥面相平齐；双幅拼接箱型横梁位于所述桥面板中央拼接带的下方，用于承托桥面，所述双幅拼接箱型横梁通过在既有双幅桥内侧的腹板以及顶板下缘植入后植钢筋、然后浇筑混凝土形成，所述双幅拼接箱型横梁与既有双幅桥的桥箱梁等高。该拼接结构受力安全可靠、对主体结构影响较小。本发明同时公开了包含该拼接结构的施工方法。
Splicing structure of existing large-span double-amplitude cast-in-place box girder bridge and construction method of splicing structure
The invention discloses a splicing structure of an existing large-span double-amplitude cast-in-place box girder bridge and a construction method of the splicing structure, the splicing structure comprises a bridge deck slab central splicing belt and a double-amplitude splicing box type cross beam, the bridge deck slab central splicing belt is arranged in the center of the existing double-amplitude bridge, and the double-amplitude splicing box type cross beam is arranged in the bridge deck slab central splicing belt; the bridge deck slab central splicing belt is formed by implanting post-planted steel bars into the inner side of a bridge deck slab cantilever on the inner side of the existing double-amplitude bridge and then pouring concrete, and the poured bridge deck slab central splicing belt serves as a part of a bridge deck and is flush with the existing bridge deck; the double-width splicing box type cross beam is located below the bridge deck slab center splicing belt and used for bearing a bridge deck, the double-width splicing box type cross beam is formed by implanting post-planting steel bars into webs on the inner side of an existing double-width bridge and the lower edge of a top plate and then pouring concrete, and the double-width splicing box type cross beam and a bridge box beam of the existing double-width bridge are equal in height. The splicing structure is safe and reliable in stress and has small influence on a main body structure. The invention further discloses a construction method comprising the splicing structure.
本发明公开了一种既有大跨径双幅现浇箱梁桥的拼接结构及其施工方法，该拼接结构包括桥面板中央拼接带和双幅拼接箱型横梁，桥面板中央拼接带设置在既有双幅桥的中央，所述桥面板中央拼接带通过在既有双幅桥内侧的桥面板悬臂内侧植入后植钢筋、然后浇筑混凝土形成，浇筑后的桥面板中央拼接带作为桥面的一部分，与既有桥面相平齐；双幅拼接箱型横梁位于所述桥面板中央拼接带的下方，用于承托桥面，所述双幅拼接箱型横梁通过在既有双幅桥内侧的腹板以及顶板下缘植入后植钢筋、然后浇筑混凝土形成，所述双幅拼接箱型横梁与既有双幅桥的桥箱梁等高。该拼接结构受力安全可靠、对主体结构影响较小。本发明同时公开了包含该拼接结构的施工方法。
Splicing structure of existing large-span double-amplitude cast-in-place box girder bridge and construction method of splicing structure
一种既有大跨径双幅现浇箱梁桥的拼接结构及其施工方法
XU DEZHI (author) / SUN XIANGDONG (author) / GUAN KUAI (author) / MIAO CHENGMING (author) / XUE ZHIBO (author) / DU LEI (author) / HUANG QINTAO (author) / YIN CHENZHE (author) / MA YUANCHI (author) / WANG JIANGHAO (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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