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A platform for research: civil engineering, architecture and urbanism
Construction form of multi-stage energy dissipation fabricated pier combining internal and external energy dissipation devices
The invention relates to the field of building structures, in particular to a construction form of a multi-stage energy dissipation assembly type pier combining internal and external energy dissipation devices, prestressed pipelines are prefabricated in a foundation, a bottom section, a middle section and a top section of the pier, post-tensioned prestressed steel strands penetrate into the prestressed pipelines, and connection is performed through tensioning and anchoring of the steel strands; a cylindrical convex body with the same size as the section of a bottom section is arranged at the top of a foundation, and the cylindrical convex body and the bottom section are spliced and connected through an external steel sleeve; energy-consuming steel bars with different reinforcement ratios are arranged among the bottom section, the middle section and the top section, and the reinforcement ratios are sequentially decreased from bottom to top. The external steel sleeve convenient to replace is installed at the bottom, the energy dissipation steel bars with different reinforcement ratios are arranged at the joints of the other bridge pier sections, the bending resistance of the joints is matched with the magnitude of the earthquake action borne by the joints in the earthquake process, multi-stage energy dissipation is achieved, and the energy dissipation capacity in the earthquake process is enhanced.
本发明涉及建筑结构领域，具体涉及一种结合内外耗能装置的多级耗能装配式桥墩的构造形式，其基础、底节段、中部节段、顶部节段内均预制预应力管道，在预应力管道处穿入后张预应力的钢绞线，通过钢绞线的张拉及锚固进行连接；其基础顶部设置与底节段截面大小相同的圆柱体凸体，圆柱形凸体与底节段通过外置钢套管拼装连接；底节段、中部节段、顶部节段之间设置不同配筋率的耗能钢筋，且从下往上设置的配筋率依次递减。本发明在底部安装便于更换的外置钢套管，并在其余节段桥墩接缝处配置不同配筋率的耗能钢筋，将不同接缝处的抗弯能力与其在地震过程中承受地震作用的大小相适配，实现多级耗能，增强在地震过程中的耗能能力。
Construction form of multi-stage energy dissipation fabricated pier combining internal and external energy dissipation devices
The invention relates to the field of building structures, in particular to a construction form of a multi-stage energy dissipation assembly type pier combining internal and external energy dissipation devices, prestressed pipelines are prefabricated in a foundation, a bottom section, a middle section and a top section of the pier, post-tensioned prestressed steel strands penetrate into the prestressed pipelines, and connection is performed through tensioning and anchoring of the steel strands; a cylindrical convex body with the same size as the section of a bottom section is arranged at the top of a foundation, and the cylindrical convex body and the bottom section are spliced and connected through an external steel sleeve; energy-consuming steel bars with different reinforcement ratios are arranged among the bottom section, the middle section and the top section, and the reinforcement ratios are sequentially decreased from bottom to top. The external steel sleeve convenient to replace is installed at the bottom, the energy dissipation steel bars with different reinforcement ratios are arranged at the joints of the other bridge pier sections, the bending resistance of the joints is matched with the magnitude of the earthquake action borne by the joints in the earthquake process, multi-stage energy dissipation is achieved, and the energy dissipation capacity in the earthquake process is enhanced.
本发明涉及建筑结构领域，具体涉及一种结合内外耗能装置的多级耗能装配式桥墩的构造形式，其基础、底节段、中部节段、顶部节段内均预制预应力管道，在预应力管道处穿入后张预应力的钢绞线，通过钢绞线的张拉及锚固进行连接；其基础顶部设置与底节段截面大小相同的圆柱体凸体，圆柱形凸体与底节段通过外置钢套管拼装连接；底节段、中部节段、顶部节段之间设置不同配筋率的耗能钢筋，且从下往上设置的配筋率依次递减。本发明在底部安装便于更换的外置钢套管，并在其余节段桥墩接缝处配置不同配筋率的耗能钢筋，将不同接缝处的抗弯能力与其在地震过程中承受地震作用的大小相适配，实现多级耗能，增强在地震过程中的耗能能力。
Construction form of multi-stage energy dissipation fabricated pier combining internal and external energy dissipation devices
一种结合内外耗能装置的多级耗能装配式桥墩的构造形式
HAN BING (author) / XIE HUIBING (author) / YANG WENJIN (author) / WANG GUANGJUN (author) / LIU PANPAN (author) / WANG MINGZHE (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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