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A platform for research: civil engineering, architecture and urbanism
Bridge deck widening structure suitable for existing bridge structure and construction method
The invention provides a bridge deck widening structure suitable for an existing bridge structure and a construction method.The bridge deck widening structure comprises an existing bridge, a prefabricated slab, a connecting assembly and a plurality of prefabricated supporting structures arranged at intervals in the bridge direction, and each prefabricated supporting structure comprises a prefabricated T-shaped rib, a lining plate and a fastening connecting rod; the prefabricated T-shaped rib comprises a web connecting end and a cantilever widening end, the lining panel, a web of the existing bridge and the web connecting end are mutually connected through fastening connecting rods, the cantilever widening end is connected with a flange end of the existing bridge through a connecting assembly, a pre-positioning mechanism is formed at the cantilever widening end, the pre-positioning mechanism is provided with a pre-positioning groove, and the pre-positioning groove is matched with the pre-positioning groove. And the prefabricated slab is supported in the pre-positioning groove. By means of the connecting mode of fastening the connecting rods, a large number of steel bar planting processes are omitted, and disturbance to an existing structure is small; the structure is kept self-stable in the construction process, and the hoisting cross operation time is shortened; after being poured, the structural layer serves as a part of the existing bridge to integrally participate in stress, and the longitudinal and transverse bearing capacity of the existing structure is greatly improved.
本发明提供一种适用于既有桥梁结构的桥面加宽构造与施工方法，包括既有桥梁、预制板、连接组件以及多个沿顺桥向间隔布置的预制支撑结构，每个预制支撑结构均包括预制T形肋、内衬板及紧固连接杆，预制T形肋包括腹板连接端及悬挑加宽端，内衬板、既有桥梁的腹板和腹板连接端之间通过紧固连接杆相互连接，悬挑加宽端通过连接组件与既有桥梁的翼缘端相连接，悬挑加宽端形成有预定位机构，预定位机构具有预定位槽，预制板支撑于预定位槽内。如此通过紧固连接杆的连接方式省去大量植筋工艺，对既有结构扰动少；结构在施工过程中保持自稳，减少吊装交叉作业时间；结构层浇筑后作为既有桥梁的一部分整体参与受力，大幅提高既有结构纵、横向承载能力。
Bridge deck widening structure suitable for existing bridge structure and construction method
The invention provides a bridge deck widening structure suitable for an existing bridge structure and a construction method.The bridge deck widening structure comprises an existing bridge, a prefabricated slab, a connecting assembly and a plurality of prefabricated supporting structures arranged at intervals in the bridge direction, and each prefabricated supporting structure comprises a prefabricated T-shaped rib, a lining plate and a fastening connecting rod; the prefabricated T-shaped rib comprises a web connecting end and a cantilever widening end, the lining panel, a web of the existing bridge and the web connecting end are mutually connected through fastening connecting rods, the cantilever widening end is connected with a flange end of the existing bridge through a connecting assembly, a pre-positioning mechanism is formed at the cantilever widening end, the pre-positioning mechanism is provided with a pre-positioning groove, and the pre-positioning groove is matched with the pre-positioning groove. And the prefabricated slab is supported in the pre-positioning groove. By means of the connecting mode of fastening the connecting rods, a large number of steel bar planting processes are omitted, and disturbance to an existing structure is small; the structure is kept self-stable in the construction process, and the hoisting cross operation time is shortened; after being poured, the structural layer serves as a part of the existing bridge to integrally participate in stress, and the longitudinal and transverse bearing capacity of the existing structure is greatly improved.
本发明提供一种适用于既有桥梁结构的桥面加宽构造与施工方法，包括既有桥梁、预制板、连接组件以及多个沿顺桥向间隔布置的预制支撑结构，每个预制支撑结构均包括预制T形肋、内衬板及紧固连接杆，预制T形肋包括腹板连接端及悬挑加宽端，内衬板、既有桥梁的腹板和腹板连接端之间通过紧固连接杆相互连接，悬挑加宽端通过连接组件与既有桥梁的翼缘端相连接，悬挑加宽端形成有预定位机构，预定位机构具有预定位槽，预制板支撑于预定位槽内。如此通过紧固连接杆的连接方式省去大量植筋工艺，对既有结构扰动少；结构在施工过程中保持自稳，减少吊装交叉作业时间；结构层浇筑后作为既有桥梁的一部分整体参与受力，大幅提高既有结构纵、横向承载能力。
Bridge deck widening structure suitable for existing bridge structure and construction method
一种适用于既有桥梁结构的桥面加宽构造与施工方法
CHEN GUANG (author) / LIU YONG (author) / XIANG JIANJUN (author) / LI YU (author) / HE YAOBEI (author) / LI WENWU (author) / LIU RONG (author) / SU ZHENYU (author) / WANG TIAN (author) / WANG QING (author)
2024-08-27
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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