Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated assembled pier structure based on UHPC (Ultra High Performance Concrete) joint and construction method
The invention provides a prefabricated assembled pier structure based on UHPC joints and a construction method. The prefabricated assembled pier structure comprises prefabricated pier columns and the UHPC joints, the prefabricated pier columns comprise the first prefabricated pier column and the second prefabricated pier column, the two prefabricated pier columns are in an inverted-L shape, shear keys are arranged on the end faces of the horizontal parts of the prefabricated pier columns, the shear keys are arranged in the middles of the sections, first pre-embedded steel bars and second pre-embedded steel bars are arranged on the horizontal part, are arranged on the periphery of the end surface, extend out of the end surface by a certain length, are arranged in a staggered manner, and are staggered in each row in the transverse direction of the section; and a UHPC joint is poured between the first prefabricated pier column and the second prefabricated pier column, and splicing construction is completed. According to the connecting structure, the splicing position between the cap beam and the pier column is firm in stress, the requirement for splicing precision is low, the construction speed is high, the construction quality is high, the problems that a single cap beam is large in size, heavy, difficult to transport and hoist and the like are solved, and a novel efficient splicing scheme is provided for the cap beam and the pier column.
本发明提供一种基于UHPC接缝的预制拼装桥墩结构及施工方法，预制拼装桥墩结构包括预制墩柱和UHPC接缝，预制墩柱包括第一预制墩柱和第二预制墩柱，两个预制墩柱形状为倒L型，在其水平部分端面设置有剪力键，剪力键设置在截面中部，在其水平部分分别设有第一预埋钢筋和第二预埋钢筋，第一预埋钢筋和第二预埋钢筋布置在端面四周，伸出端面一定长度，相互交错布置，且在截面横向每列相互错开；在第一预制墩柱和第二预制墩柱中间浇筑UHPC接缝，完成拼装施工。该连接结构帽梁与墩柱间拼接处受力牢靠、拼装精度要求低、施工速度快、施工质量高，解决单个帽梁尺寸大、重量重，运输、吊装困难等问题，为帽梁和墩柱间提供一种新型高效拼装方案。
Prefabricated assembled pier structure based on UHPC (Ultra High Performance Concrete) joint and construction method
The invention provides a prefabricated assembled pier structure based on UHPC joints and a construction method. The prefabricated assembled pier structure comprises prefabricated pier columns and the UHPC joints, the prefabricated pier columns comprise the first prefabricated pier column and the second prefabricated pier column, the two prefabricated pier columns are in an inverted-L shape, shear keys are arranged on the end faces of the horizontal parts of the prefabricated pier columns, the shear keys are arranged in the middles of the sections, first pre-embedded steel bars and second pre-embedded steel bars are arranged on the horizontal part, are arranged on the periphery of the end surface, extend out of the end surface by a certain length, are arranged in a staggered manner, and are staggered in each row in the transverse direction of the section; and a UHPC joint is poured between the first prefabricated pier column and the second prefabricated pier column, and splicing construction is completed. According to the connecting structure, the splicing position between the cap beam and the pier column is firm in stress, the requirement for splicing precision is low, the construction speed is high, the construction quality is high, the problems that a single cap beam is large in size, heavy, difficult to transport and hoist and the like are solved, and a novel efficient splicing scheme is provided for the cap beam and the pier column.
本发明提供一种基于UHPC接缝的预制拼装桥墩结构及施工方法，预制拼装桥墩结构包括预制墩柱和UHPC接缝，预制墩柱包括第一预制墩柱和第二预制墩柱，两个预制墩柱形状为倒L型，在其水平部分端面设置有剪力键，剪力键设置在截面中部，在其水平部分分别设有第一预埋钢筋和第二预埋钢筋，第一预埋钢筋和第二预埋钢筋布置在端面四周，伸出端面一定长度，相互交错布置，且在截面横向每列相互错开；在第一预制墩柱和第二预制墩柱中间浇筑UHPC接缝，完成拼装施工。该连接结构帽梁与墩柱间拼接处受力牢靠、拼装精度要求低、施工速度快、施工质量高，解决单个帽梁尺寸大、重量重，运输、吊装困难等问题，为帽梁和墩柱间提供一种新型高效拼装方案。
Prefabricated assembled pier structure based on UHPC (Ultra High Performance Concrete) joint and construction method
一种基于UHPC接缝的预制拼装桥墩结构及施工方法
SUN SHULI (Autor:in) / SU WEI (Autor:in) / ZHANG SHUAI (Autor:in)
16.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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