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A platform for research: civil engineering, architecture and urbanism
Method for connecting prefabricated vase piers through unbonded prestressed tendons and reinforcing steel bars
The invention relates to the technical field of urban rail traffic such as subway systems, urban fast rail systems, light rail systems, medium-low speed maglev traffic systems and straddle type monorail systems, in particular to a method for connecting prefabricated vase piers through unbonded prestressed tendons and reinforcing steel bars. Comprising a prefabricated pipe pile, a bearing platform and a prefabricated pier column which are sequentially arranged, the prefabricated pier column is formed by splicing at least two pier column sections, a prestressed steel strand penetrates through the prefabricated pier column in a non-contact mode and is anchored in the bearing platform, and the top end of the prestressed steel strand is fixed to the top of the prefabricated pier column after being tensioned; and the prestressed steel strand penetrates through the part between the prefabricated pier column and the prefabricated pier column, and the prestressed steel strand penetrates through the part between the bearing platform and the bearing platform, so that an unbonded structure is formed. The prefabricated pipe piles and the prefabricated pier columns are manufactured in advance in the prefabricated field, and the construction efficiency is improved; vertical prestress is formed through the prestress steel strands, and the durability of the joints is improved; due to the formed unbonded structure, the bridge pier has a certain self-resetting function and has better anti-seismic performance.
本发明涉及地铁系统、市域快轨系统、轻轨系统、中低速磁浮交通系统、跨座式单轨系统等城市轨道交通技术领域，具体为一种通过无粘结预应力筋及钢筋连接预制花瓶墩的方法，包括：依次设置的预制管桩、承台以及至少两个墩柱节段拼接形成的预制墩柱，预应力钢绞线无接触的贯穿预制墩柱并锚固在承台内部，预应力钢绞线顶端进行张拉后固定在预制墩柱的顶部，预应力钢绞线穿过预制墩柱的部分和预制墩柱之间、预应力钢绞线穿过承台的部分和承台之间，形成无粘结结构。在预制场内对预制管桩和预制墩柱预先制作，提高施工效率；通过预应力钢绞线形成竖向预应力，提高接缝处的耐久性；形成的无粘结结构，使得桥墩具有一定的自复位功能，具备更好的抗震性能。
Method for connecting prefabricated vase piers through unbonded prestressed tendons and reinforcing steel bars
The invention relates to the technical field of urban rail traffic such as subway systems, urban fast rail systems, light rail systems, medium-low speed maglev traffic systems and straddle type monorail systems, in particular to a method for connecting prefabricated vase piers through unbonded prestressed tendons and reinforcing steel bars. Comprising a prefabricated pipe pile, a bearing platform and a prefabricated pier column which are sequentially arranged, the prefabricated pier column is formed by splicing at least two pier column sections, a prestressed steel strand penetrates through the prefabricated pier column in a non-contact mode and is anchored in the bearing platform, and the top end of the prestressed steel strand is fixed to the top of the prefabricated pier column after being tensioned; and the prestressed steel strand penetrates through the part between the prefabricated pier column and the prefabricated pier column, and the prestressed steel strand penetrates through the part between the bearing platform and the bearing platform, so that an unbonded structure is formed. The prefabricated pipe piles and the prefabricated pier columns are manufactured in advance in the prefabricated field, and the construction efficiency is improved; vertical prestress is formed through the prestress steel strands, and the durability of the joints is improved; due to the formed unbonded structure, the bridge pier has a certain self-resetting function and has better anti-seismic performance.
本发明涉及地铁系统、市域快轨系统、轻轨系统、中低速磁浮交通系统、跨座式单轨系统等城市轨道交通技术领域，具体为一种通过无粘结预应力筋及钢筋连接预制花瓶墩的方法，包括：依次设置的预制管桩、承台以及至少两个墩柱节段拼接形成的预制墩柱，预应力钢绞线无接触的贯穿预制墩柱并锚固在承台内部，预应力钢绞线顶端进行张拉后固定在预制墩柱的顶部，预应力钢绞线穿过预制墩柱的部分和预制墩柱之间、预应力钢绞线穿过承台的部分和承台之间，形成无粘结结构。在预制场内对预制管桩和预制墩柱预先制作，提高施工效率；通过预应力钢绞线形成竖向预应力，提高接缝处的耐久性；形成的无粘结结构，使得桥墩具有一定的自复位功能，具备更好的抗震性能。
Method for connecting prefabricated vase piers through unbonded prestressed tendons and reinforcing steel bars
一种通过无粘结预应力筋及钢筋连接预制花瓶墩的方法
HE PENG (author) / BAI TANGYING (author) / XU HAO (author) / CHEN YIPENG (author) / ZHUANG JIANJIE (author) / LYU JINFENG (author) / TANG XINGGUO (author) / TIAN YU (author) / ZHANG NA (author) / LIU YUNLIANG (author)
2022-09-30
Patent
Electronic Resource
Chinese
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