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A platform for research: civil engineering, architecture and urbanism
Bridge underpinning supporting structure and construction method
The invention relates to a bridge underpinning supporting structure and a construction method. The bridge underpinning supporting structure comprises an expansion bearing platform connected with embedded steel bars of an original bearing platform, a plurality of transversely arranged stand column steel pipe piles arranged on the expansion bearing platform, and a bearing device arranged at the topsof the plurality of stand column steel pipe piles, a plurality of supporting structures are arranged between the stand column steel pipe piles and an original pier column, the bearing device comprises a transverse bearing beam arranged at the tops of the stand column steel pipe piles, the stand column steel pipe piles are connected through inclined struts and horizontal connection pieces, and theexpansion bearing platform is located on the side span side of the original bearing platform in the bridge central axis direction. Steel bars are planted on a bearing platform of an original pier, pouring of the expansion bearing platform is conducted, so that the stress area of the original bearing platform is increased, the stability of the underpinning supporting structure is guaranteed, and meanwhile, pile foundations have no need being excavated again; and in addition, the distance between the underpinning supporting structure and the original pier is short, so that the construction difficulty is lowered, meanwhile the supporting structures are arranged between the original pier and the underpinning supporting structure, and after a beam body falls onto the underpinning supporting structure, the stability of the underpinning supporting structure is guaranteed.
本发明涉及桥梁托换支撑结构及施工方法，桥梁托换支撑结构，包括：与原承台植筋连接的扩展承台、设置于扩展承台上的多个横向排列立柱钢管桩，以及设于多个立柱钢管桩顶部的承重装置，立柱钢管桩与原墩柱之间设有多个支撑结构，承重装置包括设置于立柱钢管桩顶部的横向承重梁，立柱钢管桩之间通过斜撑和平联连接，扩展承台位于原承台顺桥向的边跨侧。在原桥墩的承台上植筋并进行扩展承台的浇筑，增加了原承台的受力面积，保证了托换支撑结构的稳定性，同时无需重新挖掘桩基，另外托换支撑结构与原桥墩的距离较近，降低了施工难度，同时原桥墩与托换支撑结构之间设置有支撑结构，在梁体落梁到托换支撑结构上之后，保证了托换支撑结构的稳定性。
Bridge underpinning supporting structure and construction method
The invention relates to a bridge underpinning supporting structure and a construction method. The bridge underpinning supporting structure comprises an expansion bearing platform connected with embedded steel bars of an original bearing platform, a plurality of transversely arranged stand column steel pipe piles arranged on the expansion bearing platform, and a bearing device arranged at the topsof the plurality of stand column steel pipe piles, a plurality of supporting structures are arranged between the stand column steel pipe piles and an original pier column, the bearing device comprises a transverse bearing beam arranged at the tops of the stand column steel pipe piles, the stand column steel pipe piles are connected through inclined struts and horizontal connection pieces, and theexpansion bearing platform is located on the side span side of the original bearing platform in the bridge central axis direction. Steel bars are planted on a bearing platform of an original pier, pouring of the expansion bearing platform is conducted, so that the stress area of the original bearing platform is increased, the stability of the underpinning supporting structure is guaranteed, and meanwhile, pile foundations have no need being excavated again; and in addition, the distance between the underpinning supporting structure and the original pier is short, so that the construction difficulty is lowered, meanwhile the supporting structures are arranged between the original pier and the underpinning supporting structure, and after a beam body falls onto the underpinning supporting structure, the stability of the underpinning supporting structure is guaranteed.
本发明涉及桥梁托换支撑结构及施工方法，桥梁托换支撑结构，包括：与原承台植筋连接的扩展承台、设置于扩展承台上的多个横向排列立柱钢管桩，以及设于多个立柱钢管桩顶部的承重装置，立柱钢管桩与原墩柱之间设有多个支撑结构，承重装置包括设置于立柱钢管桩顶部的横向承重梁，立柱钢管桩之间通过斜撑和平联连接，扩展承台位于原承台顺桥向的边跨侧。在原桥墩的承台上植筋并进行扩展承台的浇筑，增加了原承台的受力面积，保证了托换支撑结构的稳定性，同时无需重新挖掘桩基，另外托换支撑结构与原桥墩的距离较近，降低了施工难度，同时原桥墩与托换支撑结构之间设置有支撑结构，在梁体落梁到托换支撑结构上之后，保证了托换支撑结构的稳定性。
Bridge underpinning supporting structure and construction method
桥梁托换支撑结构及施工方法
LIU ZHENCHUAN (author) / ZHOU XU (author) / LIU JINWEI (author) / BAN SHENGJUN (author) / HE CHUANFENG (author) / ZHAO XINLIANG (author)
2020-12-18
Patent
Electronic Resource
Chinese
Bridge abutment underpinning reinforced bridge structure and construction method thereof
| European Patent Office | 2023
| European Patent Office | 2021
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