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A platform for research: civil engineering, architecture and urbanism
End bearing type steel pipe reinforced UHPC prefabricated pipe assembled pier structure and construction method thereof
The invention relates to an end-bearing type steel pipe reinforced UHPC prefabricated pipe spliced pier structure and a construction method thereof. The prefabricated pipe spliced pier structure comprises steel pipe reinforced UHPC prefabricated pipes and a connecting structure of a bearing platform and a cover beam. The steel pipe reinforced UHPC prefabricated pipe is formed by splicing a pier bottom section, a middle section and a pier top section, each section comprises an inner-layer UHPC, a steel pipe, the inner-layer UHPC and a section splicing joint, shear nails are welded to the inner wall and the outer wall of the steel pipe, and stiffening ribs and end plates are welded to the bottom of the steel pipe of the pier bottom section. A groove is reserved in the center of the bearing platform, a bolt and a reinforcement cage connecting assembly are embedded in the groove of the bearing platform, after the steel pipe reinforced UHPC prefabricated pipe and the bearing platform are connected through the bolt, the groove of the bearing platform is filled with UHPC, and core concrete is poured into the plastic hinge area prefabricated pipe; the steel pipe reinforced UHPC prefabricated pipe assembled pier has the advantages of being high in bearing capacity, good in anti-seismic performance, high in construction efficiency, good in prefabricated pipe assembled joint integrity and the like.
本发明涉及一种端承式钢管增强UHPC预制管拼装桥墩结构及其施工方法，该预制管拼装桥墩结构包括钢管增强UHPC预制管、及与承台和盖梁的连接构造；钢管增强UHPC预制管由墩底节段、中间节段和墩顶节段拼装而成，各节段包含内层UHPC、钢管、内层UHPC和节段拼接节点，钢管内、外壁焊接剪力钉，墩底节段钢管底部焊接加劲肋和端板；承台中心预留凹槽，并在承台凹槽内预埋螺栓和钢筋笼连接组件，钢管增强UHPC预制管与承台采用螺栓连接后，承台凹槽用UHPC填充，塑性铰区预制管内浇筑核心混凝土；本发明形成的钢管增强UHPC预制管拼装桥墩具有承载能力高、抗震性能好、施工效率高、预制管拼装节点整体性好等优点。
End bearing type steel pipe reinforced UHPC prefabricated pipe assembled pier structure and construction method thereof
The invention relates to an end-bearing type steel pipe reinforced UHPC prefabricated pipe spliced pier structure and a construction method thereof. The prefabricated pipe spliced pier structure comprises steel pipe reinforced UHPC prefabricated pipes and a connecting structure of a bearing platform and a cover beam. The steel pipe reinforced UHPC prefabricated pipe is formed by splicing a pier bottom section, a middle section and a pier top section, each section comprises an inner-layer UHPC, a steel pipe, the inner-layer UHPC and a section splicing joint, shear nails are welded to the inner wall and the outer wall of the steel pipe, and stiffening ribs and end plates are welded to the bottom of the steel pipe of the pier bottom section. A groove is reserved in the center of the bearing platform, a bolt and a reinforcement cage connecting assembly are embedded in the groove of the bearing platform, after the steel pipe reinforced UHPC prefabricated pipe and the bearing platform are connected through the bolt, the groove of the bearing platform is filled with UHPC, and core concrete is poured into the plastic hinge area prefabricated pipe; the steel pipe reinforced UHPC prefabricated pipe assembled pier has the advantages of being high in bearing capacity, good in anti-seismic performance, high in construction efficiency, good in prefabricated pipe assembled joint integrity and the like.
本发明涉及一种端承式钢管增强UHPC预制管拼装桥墩结构及其施工方法，该预制管拼装桥墩结构包括钢管增强UHPC预制管、及与承台和盖梁的连接构造；钢管增强UHPC预制管由墩底节段、中间节段和墩顶节段拼装而成，各节段包含内层UHPC、钢管、内层UHPC和节段拼接节点，钢管内、外壁焊接剪力钉，墩底节段钢管底部焊接加劲肋和端板；承台中心预留凹槽，并在承台凹槽内预埋螺栓和钢筋笼连接组件，钢管增强UHPC预制管与承台采用螺栓连接后，承台凹槽用UHPC填充，塑性铰区预制管内浇筑核心混凝土；本发明形成的钢管增强UHPC预制管拼装桥墩具有承载能力高、抗震性能好、施工效率高、预制管拼装节点整体性好等优点。
End bearing type steel pipe reinforced UHPC prefabricated pipe assembled pier structure and construction method thereof
一种端承式钢管增强UHPC预制管拼装桥墩结构及其施工方法
LUO XIA (author) / YU XINYE (author) / WEI JIANGANG (author) / WU XUNZHEN (author) / CHEN XIANG (author)
2024-07-09
Patent
Electronic Resource
Chinese
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