Prestress connecting device of railway prefabricated assembly type bridge pier

A prefabricated assembly and prestressed technology, applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve problems affecting the normal use of bridge piers, reducing the durability of bridge piers and the overall service life of bridge piers

Pending Publication Date: 2021-05-28
新疆铁道勘察设计院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disease affects the normal use of the pier, reduces the d

Method used

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  • Prestress connecting device of railway prefabricated assembly type bridge pier
  • Prestress connecting device of railway prefabricated assembly type bridge pier

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Embodiment Construction

[0010] see figure 1 , figure 2 , a prestressed connection device for railway prefabricated bridge piers, comprising single-end tension anchors 1, cast-in-situ solid section concrete 2, pre-embedded steel bars 3, prefabricated hollow pier bodies 4, prestressed tunnels 5, and prestressed steel bars 6. Grouting hole 7, grouting hole 8, pier positioning falcon 9, prefabricated beam 10, beam positioning falcon 11, sealant 12, sealing gasket 13, mortar cushion 14, foundation 15. The pre-embedded steel bar 3 is pre-embedded in the foundation 15 corresponding to the part of the prefabricated hollow pier pier body 4 cast-in-situ concrete 2, and the single-end tension anchor 1 is pre-embedded in the foundation anchor hole after installing the prestressed steel bar 6, and is connected with a wire rope Prestressed steel bar 6, the first section of prefabricated hollow pier body 4 is placed flat, the steel wire rope is penetrated into the prestressed channel 5 on the bottom surface of th...

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Abstract

The invention discloses a prestress connecting device of a railway prefabricated assembly type pier, and particularly relates to a prestress connecting device which is characterized in that a prestress steel bar is anchored to a pier foundation in advance, penetrates through a prestress hole channel of a prefabricated pier and a prestress hole channel of a prefabricated cross beam, is reserved in a tensioning notch of the prefabricated cross beam and applies prestress by tensioning a prestress steel strand; and finally, pressure drop and anchor sealing are conducted on the prestressed pipeline, and connection of the prefabricated assembly type bridge piers is completed. The prestress connecting device of the railway prefabricated pier is a connecting anchoring system, effectively achieves connection of a foundation, a pier body and a cross beam, eliminates cracks at splicing joints by applying prestress, and guarantees durability and normal use of the pier.

Description

technical field [0001] The present invention relates to a prestressed connection device for railway prefabricated bridge piers, in particular to a prestressed tunnel for pre-anchoring prestressed steel bars to the bridge pier foundation, passing through prefabricated bridge piers and prefabricated crossbeams, and prefabricated crossbeams to reserve tension The notch is used to apply prestress by tensioning prestressed steel strands, and finally perform pressure drop of prestressed pipelines, seal anchors, and complete the connection of prefabricated assembled bridge piers, which belongs to the technical field of bridge and culvert engineering. Background technique [0002] Traditional railway bridge piers are constructed using cast-in-place construction, which requires a lot of manual erection of supports and formwork and tying of steel bars on the construction site. The process is complicated, the environment is polluted, the construction time is long, the efficiency is low,...

Claims

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Application Information

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IPC IPC(8): E01D19/02E01D21/00E01D101/28
CPCE01D19/02E01D21/00E01D2101/28
Inventor 张振钛徐镭张予欣张学斌袁国涛
Owner 新疆铁道勘察设计院有限公司
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