A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prefabricated U-shaped beam and integrally-assembled bridge construction method
The invention provides a prefabricated U-shaped beam, the prefabricated U-shaped beam is a U-shaped middle plate, the U-shaped middle plate comprises a middle bottom plate, a first pre-tensioning method prestressed tendon is arranged in the middle bottom plate, and the first pre-tensioning method prestressed tendon is arranged in the extension direction of the middle bottom plate; one middle web plate is arranged on one side of the middle bottom plate, the other middle web plate is arranged on the other side of the middle bottom plate, a first connecting tongue-and-groove is formed in the outer side of any middle web plate, and the first connecting tongue-and-groove is formed in the extending direction of the middle web plate. According to the prefabricated U-shaped beam, the pre-tensioning method is adopted for tensioning the prestressed tendons, prefabrication is convenient, the production efficiency is high, the post-tensioning method is adopted for tensioning the prestressed tendons in the web between the plate beams, compared with an existing hinge joint, the concrete material is small, the reliability is high, the connecting tongue-and-groove is formed in the prefabricated U-shaped beam, connection between the prefabricated U-shaped beam and the web between the cast-in-place plate beams is facilitated, and the construction cost is reduced. The structure is more stable.
本发明提供一种预制U型梁，所述预制U型梁为U型中板，所述U型中板包括：中底板，所述中底板内设有第一先张法预应力筋，所述第一先张法预应力筋沿所述中底板的延伸方向设置；两条中腹板，一所述中腹板设于所述中底板的一侧，另一所述中腹板设于所述中底板的另一侧，任一所述中腹板的外侧设有第一连接企口，所述第一连接企口沿所述中腹板的延伸方向设置。本申请的预制U型梁采用先张法张拉预应力筋，预制方便、生产效率高，在板梁间腹板内采用后张法张拉预应力筋，相较于现有铰缝，混凝土用料少、可靠性高，在预制U型梁上设置连接企口，有助于预制U型梁和现浇板梁间腹板之间的连接，结构更加稳定。
Prefabricated U-shaped beam and integrally-assembled bridge construction method
The invention provides a prefabricated U-shaped beam, the prefabricated U-shaped beam is a U-shaped middle plate, the U-shaped middle plate comprises a middle bottom plate, a first pre-tensioning method prestressed tendon is arranged in the middle bottom plate, and the first pre-tensioning method prestressed tendon is arranged in the extension direction of the middle bottom plate; one middle web plate is arranged on one side of the middle bottom plate, the other middle web plate is arranged on the other side of the middle bottom plate, a first connecting tongue-and-groove is formed in the outer side of any middle web plate, and the first connecting tongue-and-groove is formed in the extending direction of the middle web plate. According to the prefabricated U-shaped beam, the pre-tensioning method is adopted for tensioning the prestressed tendons, prefabrication is convenient, the production efficiency is high, the post-tensioning method is adopted for tensioning the prestressed tendons in the web between the plate beams, compared with an existing hinge joint, the concrete material is small, the reliability is high, the connecting tongue-and-groove is formed in the prefabricated U-shaped beam, connection between the prefabricated U-shaped beam and the web between the cast-in-place plate beams is facilitated, and the construction cost is reduced. The structure is more stable.
本发明提供一种预制U型梁，所述预制U型梁为U型中板，所述U型中板包括：中底板，所述中底板内设有第一先张法预应力筋，所述第一先张法预应力筋沿所述中底板的延伸方向设置；两条中腹板，一所述中腹板设于所述中底板的一侧，另一所述中腹板设于所述中底板的另一侧，任一所述中腹板的外侧设有第一连接企口，所述第一连接企口沿所述中腹板的延伸方向设置。本申请的预制U型梁采用先张法张拉预应力筋，预制方便、生产效率高，在板梁间腹板内采用后张法张拉预应力筋，相较于现有铰缝，混凝土用料少、可靠性高，在预制U型梁上设置连接企口，有助于预制U型梁和现浇板梁间腹板之间的连接，结构更加稳定。
Prefabricated U-shaped beam and integrally-assembled bridge construction method
一种预制U型梁及整体拼装的桥梁施工方法
ZHANG SHIPING (author) / WU JUNFENG (author) / ZHANG HUA (author) / SUN ZHONGHAI (author) / LIN MAOWEN (author) / ZHANG BING (author)
2022-11-04
Patent
Electronic Resource
Chinese
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