Pier prefabricated and assembled segment, pier and construction method thereof

A prefabricated assembly and segment technology, applied in the field of bridge piers, can solve the problems of long construction period, short construction time, affecting construction speed, etc., and achieve the effects of improving integrity, improving structural ductility, and improving durability.

Pending Publication Date: 2019-07-12
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the piers of existing bridge structures adopt the construction method of pouring on site. This construction method has a long construction period, and the construction time in a year in the alpine and high-altitude areas is short, which affects the construction speed.

Method used

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  • Pier prefabricated and assembled segment, pier and construction method thereof
  • Pier prefabricated and assembled segment, pier and construction method thereof
  • Pier prefabricated and assembled segment, pier and construction method thereof

Examples

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Embodiment Construction

[0037] like figure 1 and 2 As shown, a prefabricated assembly segment of a bridge pier includes a segment body, the upper end of the segment body is provided with four joints 1, the upper end of the segment body is provided with a plurality of For the matching joint hole 2, the section body is also provided with reserved ordinary steel bar holes 3 and prestressed steel beam holes 4 along its longitudinal direction. A metal bellows 5 is arranged in the prestressed steel beam hole 4 .

[0038] In this embodiment, the segment body is cylindrical. The joint 1 is cylindrical.

[0039] The following is an example of a circular pier with a diameter d of 1.2m:

[0040] The number of said cylindrical joints is 4.

[0041] The diameter of the cylindrical joint d 1 Take it as 0.2d, height h 1 It should be taken as 0.2d, and the distance x from the center of the cylindrical joint to the center of the section should be taken as 0.6d.

[0042] The segment length l should be taken as...

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PUM

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Abstract

The invention discloses a pier prefabricated and assemble segment. The pier prefabricated and assemble segment comprises a segment body, a plurality of joints are arranged at the upper end of the segment body, a plurality of joint holes matched with the joints in an adapted and inserted mode are formed in the upper end of the segment body, and reserved common steel bar holes and prestressing steelbundle holes are further formed in the segment body in the longitudinal direction. The invention further discloses a pier including the pier prefabricated and assembled segment and a construction method of the pier. The prefabricated and assembled pier segment is adopted, hoisting, splicing and prestressed post-tensioning can be completed on site, and the prefabricated and assembled pier segmentcan be widely used in alpine or high altitude areas.

Description

technical field [0001] The invention relates to the technical field of bridge piers, in particular to a prefabricated assembly segment of a bridge pier, a bridge pier and a construction method thereof. Background technique [0002] Most of the piers of existing bridge structures adopt the construction method of pouring in situ. This construction method has a long construction period, and the construction time in a year is short in high cold and high altitude areas, which affects the construction speed. Contents of the invention [0003] The purpose of the present invention is to provide a prefabricated assembled pier section, pier and its construction method, and the prefabricated assembled pier section is used to complete hoisting, splicing and prestressed post-tensioning on site, which can be widely used in alpine or high altitude areas . [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 倪永军徐岩州张雪峰安昱昊祁帅王怡昕刘胜军张志强
Owner BEIJING JIAOTONG UNIV
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