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Connecting structure of prefabricated assembled bridge pier and construction method
The invention discloses a connecting structure of a prefabricated assembled bridge pier and a construction method of the connecting structure, tenons are arranged at the upper end of the prefabricated assembled bridge pier, the top surface of the upper tenon is in contact with the beam bottom of a bent cap, steel bars are embedded in the prefabricated assembled bridge pier in a full-length mode, and vertical bars are called bridge pier vertical bars which are arranged along the periphery of the edge of the prefabricated assembled bridge pier and extend out to surround the upper tenon; vertical ribs are embedded in the bent cap and called bent cap vertical ribs, the bent cap vertical ribs extend downwards to the position between the exposed pier vertical ribs, and an upper connecting structure is formed by pouring ultra-high-performance concrete. According to the upper connecting structure, the performance of the ultra-high performance concrete can be exerted; the ultra-high performance concrete is high in strength and good in viscosity with the steel bars, the bearing capacity of the structure can be improved, the anchoring and lap joint length of the steel bars can be shortened, the size of wet joints can be as small as possible, and the hoisting weight can be reduced; bridge construction is accelerated by utilizing the characteristics of rapid hardening and early strength of the ultra-high performance concrete, and the construction period is shortened; the high-performance concrete has characteristics of good impermeability, strong durability and the like so that the influence of an external bad environment on the pier component is reduced.
本发明公开了一种预制拼装桥墩的连接结构及其施工方法，预制拼装桥墩的上端为凸榫，上凸榫的顶面与盖梁的梁底接触，预制拼装桥墩通长预埋钢筋，其中的竖筋称为桥墩竖筋，其沿预制拼装桥墩的边缘周边设置并伸出围括上凸榫，盖梁预埋有竖筋称为盖梁竖筋，其向下伸至出露的桥墩竖筋之间，通过浇筑超高性能混凝土构成上连接结构。本发明上连接结构可发挥超高性能混凝土的性能；超高性能混凝土强度高，与钢筋粘滞性能良好，可提升结构承载能力，缩短钢筋的锚固及搭接长度，湿接缝尺寸可以尽量小，减轻吊装重量；利用超高性能混凝土快硬早强的特性加速桥梁施工，缩短工期；利用高性能混凝土抗渗性好、耐久性强等特征减小桥墩构件受外界不良环境的影响。
Connecting structure of prefabricated assembled bridge pier and construction method
The invention discloses a connecting structure of a prefabricated assembled bridge pier and a construction method of the connecting structure, tenons are arranged at the upper end of the prefabricated assembled bridge pier, the top surface of the upper tenon is in contact with the beam bottom of a bent cap, steel bars are embedded in the prefabricated assembled bridge pier in a full-length mode, and vertical bars are called bridge pier vertical bars which are arranged along the periphery of the edge of the prefabricated assembled bridge pier and extend out to surround the upper tenon; vertical ribs are embedded in the bent cap and called bent cap vertical ribs, the bent cap vertical ribs extend downwards to the position between the exposed pier vertical ribs, and an upper connecting structure is formed by pouring ultra-high-performance concrete. According to the upper connecting structure, the performance of the ultra-high performance concrete can be exerted; the ultra-high performance concrete is high in strength and good in viscosity with the steel bars, the bearing capacity of the structure can be improved, the anchoring and lap joint length of the steel bars can be shortened, the size of wet joints can be as small as possible, and the hoisting weight can be reduced; bridge construction is accelerated by utilizing the characteristics of rapid hardening and early strength of the ultra-high performance concrete, and the construction period is shortened; the high-performance concrete has characteristics of good impermeability, strong durability and the like so that the influence of an external bad environment on the pier component is reduced.
本发明公开了一种预制拼装桥墩的连接结构及其施工方法，预制拼装桥墩的上端为凸榫，上凸榫的顶面与盖梁的梁底接触，预制拼装桥墩通长预埋钢筋，其中的竖筋称为桥墩竖筋，其沿预制拼装桥墩的边缘周边设置并伸出围括上凸榫，盖梁预埋有竖筋称为盖梁竖筋，其向下伸至出露的桥墩竖筋之间，通过浇筑超高性能混凝土构成上连接结构。本发明上连接结构可发挥超高性能混凝土的性能；超高性能混凝土强度高，与钢筋粘滞性能良好，可提升结构承载能力，缩短钢筋的锚固及搭接长度，湿接缝尺寸可以尽量小，减轻吊装重量；利用超高性能混凝土快硬早强的特性加速桥梁施工，缩短工期；利用高性能混凝土抗渗性好、耐久性强等特征减小桥墩构件受外界不良环境的影响。
Connecting structure of prefabricated assembled bridge pier and construction method
一种预制拼装桥墩的连接结构及施工方法
HUANG GUOQING (author) / SUN XIANGDONG (author) / LIANG LINONG (author) / LU SHAOHONG (author) / CHEN HUANYU (author) / NING LI (author) / JIANG QIZHEN (author) / QIU ZHIXIONG (author) / LIU MIN (author) / YANG LIQUAN (author)
2021-05-11
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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