A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Connecting hinge suitable for prefabricated assembled bridge pier
The invention relates to a connecting hinge suitable for a prefabricated assembled bridge pier. The connecting hinge comprises an upper disc, a lower disc, prestressed tendons and a buckling restrained brace, the upper disc is arranged at the bottom of a pier column, the lower disc is fixed to a bearing platform, the middle area of the upper disc and the middle area of the lower disc are in spherical contact fit and form a spherical hinge structure, and the buckling restrained brace is arranged between the upper disc and the lower disc and located around the spherical hinge structure. Compared with the prior art, local damage to the bottom of a pier column caused by collision impact force generated when a traditional swing pier swings can be avoided through rotation of a spherical hinge, a provided connecting hinge can be spliced with a prefabricated pier in a factory, prestressed tendons are tensioned, and only the bottom plate of the connecting hinge needs to be connected with a bearing platform through bolts on site, so that working procedures such as on-site tensioning of the prestressed tendons in the construction process of a traditional prefabricated pier are omitted, and great convenience and time benefits are achieved. After an earthquake, only the buckling restrained brace needs to be replaced, and rapid recovery is facilitated.
本发明涉及一种适用于预制拼装桥墩的连接铰，包括上盘、下盘、预应力筋和屈曲约束支撑，所述的上盘设置在墩柱底部，所述的下盘则固定在承台上，且上盘和下盘的中间区域呈球面接触配合并形成球铰结构，所述的屈曲约束支撑布置在上盘和下盘之间并位于球铰结构周围。与现有技术相比，本发明通过球铰的转动可以避免传统摇摆墩摇摆时的碰撞冲击力造成墩柱底部的局部损伤，所提供的连接铰可以在工厂与预制桥墩拼装，张拉好预应力筋，现场只需将此连接铰的底板与承台进行螺栓连接，省去了传统预制桥墩施工过程中，预应力筋现场张拉等工序，具有很大的便利性和时间效益。震后只需更换屈曲约束支撑，便于快速恢复。
Connecting hinge suitable for prefabricated assembled bridge pier
The invention relates to a connecting hinge suitable for a prefabricated assembled bridge pier. The connecting hinge comprises an upper disc, a lower disc, prestressed tendons and a buckling restrained brace, the upper disc is arranged at the bottom of a pier column, the lower disc is fixed to a bearing platform, the middle area of the upper disc and the middle area of the lower disc are in spherical contact fit and form a spherical hinge structure, and the buckling restrained brace is arranged between the upper disc and the lower disc and located around the spherical hinge structure. Compared with the prior art, local damage to the bottom of a pier column caused by collision impact force generated when a traditional swing pier swings can be avoided through rotation of a spherical hinge, a provided connecting hinge can be spliced with a prefabricated pier in a factory, prestressed tendons are tensioned, and only the bottom plate of the connecting hinge needs to be connected with a bearing platform through bolts on site, so that working procedures such as on-site tensioning of the prestressed tendons in the construction process of a traditional prefabricated pier are omitted, and great convenience and time benefits are achieved. After an earthquake, only the buckling restrained brace needs to be replaced, and rapid recovery is facilitated.
本发明涉及一种适用于预制拼装桥墩的连接铰，包括上盘、下盘、预应力筋和屈曲约束支撑，所述的上盘设置在墩柱底部，所述的下盘则固定在承台上，且上盘和下盘的中间区域呈球面接触配合并形成球铰结构，所述的屈曲约束支撑布置在上盘和下盘之间并位于球铰结构周围。与现有技术相比，本发明通过球铰的转动可以避免传统摇摆墩摇摆时的碰撞冲击力造成墩柱底部的局部损伤，所提供的连接铰可以在工厂与预制桥墩拼装，张拉好预应力筋，现场只需将此连接铰的底板与承台进行螺栓连接，省去了传统预制桥墩施工过程中，预应力筋现场张拉等工序，具有很大的便利性和时间效益。震后只需更换屈曲约束支撑，便于快速恢复。
Connecting hinge suitable for prefabricated assembled bridge pier
一种适用于预制拼装桥墩的连接铰
ZHONG XUEQI (author) / LI JIANZHONG (author) / DUAN XINZHI (author) / KONG DEJUN (author)
2021-07-30
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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