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Socket and spigot type steel pipe reinforced UHPC prefabricated pipe concrete combined pier structure and construction method thereof
The invention relates to a socket and spigot type steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure and a construction method thereof, and is characterized in that the steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure comprises a cover beam, a steel pipe reinforced UHPC prefabricated pipe and a bearing platform, the bent cap is connected with the upper end of the steel pipe reinforced UHPC prefabricated pipe in a socket and spigot joint mode, the lower end of the steel pipe reinforced UHPC prefabricated pipe is connected with the bearing platform in a socket and spigot joint mode, a gap joint sealing material is arranged at the socket and spigot joint position, the steel pipe reinforced UHPC prefabricated pipe comprises an outer-layer UHPC, a steel pipe and an inner-layer UHPC, spiral stirrups are connected with the inner wall and the outer wall of the steel pipe in a welded mode, and the spiral stirrups are connected with the outer wall of the steel pipe in a welded mode. A shear-resistant ring is vertically and fixedly arranged on the lower end face of the steel pipe, stiffening ribs are arranged on the outer surface of the steel pipe, inserted into a bearing platform area, of the steel pipe reinforced UHPC prefabricated pipe, and the stiffening ribs are connected with the steel pipe and the shear-resistant ring; the steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure is high in bearing capacity, good in anti-seismic performance and convenient and fast to construct, and the socket and spigot joint type connection joints are good in pulling resistance.
本发明涉及一种承插式钢管增强UHPC预制管混凝土组合桥墩结构及其施工方法，其特征在于：其中钢管增强UHPC预制管混凝土组合桥墩结构，包括盖梁、钢管增强UHPC预制管和承台，所述盖梁与钢管增强UHPC预制管上端部之间、钢管增强UHPC预制管下端部与承台之间采用承插式连接，在承插位置具有间隙填缝料，所述钢管增强UHPC预制管包含外层UHPC、钢管和内层UHPC，所述钢管内壁与外壁均焊接连接有螺旋箍筋，所述钢管下端面垂直固设有抗剪环，钢管增强UHPC预制管插入承台区域的钢管外表面设加劲肋，所述加劲肋与钢管及抗剪环相连；本发明形成的钢管增强UHPC预制管混凝土组合桥墩结构承载能力高、抗震性能好、施工方便快捷，承插式连接节点抗拔性能好。
Socket and spigot type steel pipe reinforced UHPC prefabricated pipe concrete combined pier structure and construction method thereof
The invention relates to a socket and spigot type steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure and a construction method thereof, and is characterized in that the steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure comprises a cover beam, a steel pipe reinforced UHPC prefabricated pipe and a bearing platform, the bent cap is connected with the upper end of the steel pipe reinforced UHPC prefabricated pipe in a socket and spigot joint mode, the lower end of the steel pipe reinforced UHPC prefabricated pipe is connected with the bearing platform in a socket and spigot joint mode, a gap joint sealing material is arranged at the socket and spigot joint position, the steel pipe reinforced UHPC prefabricated pipe comprises an outer-layer UHPC, a steel pipe and an inner-layer UHPC, spiral stirrups are connected with the inner wall and the outer wall of the steel pipe in a welded mode, and the spiral stirrups are connected with the outer wall of the steel pipe in a welded mode. A shear-resistant ring is vertically and fixedly arranged on the lower end face of the steel pipe, stiffening ribs are arranged on the outer surface of the steel pipe, inserted into a bearing platform area, of the steel pipe reinforced UHPC prefabricated pipe, and the stiffening ribs are connected with the steel pipe and the shear-resistant ring; the steel pipe reinforced UHPC prefabricated pipe concrete combined bridge pier structure is high in bearing capacity, good in anti-seismic performance and convenient and fast to construct, and the socket and spigot joint type connection joints are good in pulling resistance.
本发明涉及一种承插式钢管增强UHPC预制管混凝土组合桥墩结构及其施工方法，其特征在于：其中钢管增强UHPC预制管混凝土组合桥墩结构，包括盖梁、钢管增强UHPC预制管和承台，所述盖梁与钢管增强UHPC预制管上端部之间、钢管增强UHPC预制管下端部与承台之间采用承插式连接，在承插位置具有间隙填缝料，所述钢管增强UHPC预制管包含外层UHPC、钢管和内层UHPC，所述钢管内壁与外壁均焊接连接有螺旋箍筋，所述钢管下端面垂直固设有抗剪环，钢管增强UHPC预制管插入承台区域的钢管外表面设加劲肋，所述加劲肋与钢管及抗剪环相连；本发明形成的钢管增强UHPC预制管混凝土组合桥墩结构承载能力高、抗震性能好、施工方便快捷，承插式连接节点抗拔性能好。
Socket and spigot type steel pipe reinforced UHPC prefabricated pipe concrete combined pier structure and construction method thereof
一种承插式钢管增强UHPC预制管混凝土组合桥墩结构及其施工方法
LUO XIA (author) / YU XINYE (author) / WEI JIANGANG (author) / OU ZHIJING (author)
2024-06-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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