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A platform for research: civil engineering, architecture and urbanism
Construction method of prefabricated pier suitable for areas with high seismic fortification intensity
The invention discloses a construction method of a prefabricated pier suitable for an area with relatively high seismic fortification intensity. The construction method comprises the following steps: welding transverse I-shaped steel and vertical I-shaped steel; the periphery of the lower part of the vertical I-shaped steel is bound with a node reinforcing steel bar mesh; the welded transverse I-shaped steel, the welded vertical I-shaped steel and the welded joint reinforcing steel bar net are fixed in a bearing platform at the position of a pile foundation; bearing platform concrete is poured; hoisting a prefabricated hollow concrete pier body and sleeving the hollow concrete pier body into the peripheries of the vertical I-shaped steel and the node reinforcing steel bar mesh; the top of the prefabricated hollow concrete pier body is provided with vertical steel bars used for being connected with a bent cap. Adjusting the perpendicularity and fixing; pouring concrete at the hollow part in the pier body; and after the concrete reaches a certain strength, constructing the capping beam. The embedded I-shaped steel is directly connected to the cover beam, the problem that the connecting points of the bearing platform and the prefabricated pier and the connecting points of the prefabricated pier and the cover beam are weak can be effectively solved, and the integrity of the bridge lower structure is greatly improved.
一种适用于抗震设防烈度较大地区的预制桥墩的施工方法，包括：焊接横向工字钢与竖向工字钢；竖向工字钢下部的四周绑扎节点加强钢筋网；将焊接好的横向工字钢、竖向工字钢及节点加强钢筋网固定在桩基位置的承台中；浇筑承台混凝土；吊装预制好的空心混凝土墩身套入竖向工字钢及节点加强钢筋网外围；预制好的空心混凝土墩身的顶部具有用于与盖梁相连接的竖向钢筋；调整垂直度、固定；浇筑墩身内空心部位的混凝土；待混凝土达到一定强度后施工盖梁。本发明通过预埋工字钢直接连接到盖梁，可以有效解决承台与预制桥墩、预制桥墩与盖梁连接点薄弱的问题，大大增加了桥梁下部结构的整体性。
Construction method of prefabricated pier suitable for areas with high seismic fortification intensity
The invention discloses a construction method of a prefabricated pier suitable for an area with relatively high seismic fortification intensity. The construction method comprises the following steps: welding transverse I-shaped steel and vertical I-shaped steel; the periphery of the lower part of the vertical I-shaped steel is bound with a node reinforcing steel bar mesh; the welded transverse I-shaped steel, the welded vertical I-shaped steel and the welded joint reinforcing steel bar net are fixed in a bearing platform at the position of a pile foundation; bearing platform concrete is poured; hoisting a prefabricated hollow concrete pier body and sleeving the hollow concrete pier body into the peripheries of the vertical I-shaped steel and the node reinforcing steel bar mesh; the top of the prefabricated hollow concrete pier body is provided with vertical steel bars used for being connected with a bent cap. Adjusting the perpendicularity and fixing; pouring concrete at the hollow part in the pier body; and after the concrete reaches a certain strength, constructing the capping beam. The embedded I-shaped steel is directly connected to the cover beam, the problem that the connecting points of the bearing platform and the prefabricated pier and the connecting points of the prefabricated pier and the cover beam are weak can be effectively solved, and the integrity of the bridge lower structure is greatly improved.
一种适用于抗震设防烈度较大地区的预制桥墩的施工方法，包括：焊接横向工字钢与竖向工字钢；竖向工字钢下部的四周绑扎节点加强钢筋网；将焊接好的横向工字钢、竖向工字钢及节点加强钢筋网固定在桩基位置的承台中；浇筑承台混凝土；吊装预制好的空心混凝土墩身套入竖向工字钢及节点加强钢筋网外围；预制好的空心混凝土墩身的顶部具有用于与盖梁相连接的竖向钢筋；调整垂直度、固定；浇筑墩身内空心部位的混凝土；待混凝土达到一定强度后施工盖梁。本发明通过预埋工字钢直接连接到盖梁，可以有效解决承台与预制桥墩、预制桥墩与盖梁连接点薄弱的问题，大大增加了桥梁下部结构的整体性。
Construction method of prefabricated pier suitable for areas with high seismic fortification intensity
一种适用于抗震设防烈度较大地区的预制桥墩的施工方法
CHEN YI (author) / LIAO YANFENG (author) / CHEN MIN (author) / HONG YIYONG (author) / HOU YIHUI (author) / ZHONG JIANZHAO (author) / SHAO BICHENG (author) / QIU ZHANHONG (author) / SHI SHILIANG (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Prefabricated assembled pier for high seismic intensity area
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