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Rapidly levelable prefabricated assembled bridge pier structure and its construction method

A prefabricated assembly and bridge pier technology, applied in bridges, bridge construction, bridge parts, etc., can solve problems such as high requirements for prefabricated parts technology level and degree of transportation protection, non-reusable leveling devices, and inability to meet precise positioning requirements. , to achieve the effect of saving construction period, rapid leveling, and rapid leveling and positioning

Active Publication Date: 2019-05-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention patent can only be used for rough positioning, and cannot meet the requirements of precise positioning, and has high requirements for prefabricated parts technology level and transportation protection degree
[0009] To sum up, the existing connection technology of prefabricated and assembled bridge piers has not yet achieved rapid and accurate leveling and positioning of reinforced concrete piers by using built-in jacks
In addition, in the existing published patents, most of the used leveling devices cannot be reused

Method used

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  • Rapidly levelable prefabricated assembled bridge pier structure and its construction method
  • Rapidly levelable prefabricated assembled bridge pier structure and its construction method
  • Rapidly levelable prefabricated assembled bridge pier structure and its construction method

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0050] The invention discloses a construction method of a prefabricated assembled bridge pier structure capable of fast levelling, which comprises the following steps:

[0051] Step 1: Prepare the following materials, including several prefabricated concrete pier sections to be assembled, and prepare a double-wall steel base 2, a double-wall steel sleeve 3, and six connecting steel bars 4 for each precast concrete pier section. Six positioning steel bars 6, three jacks 13 and 3 steel shields 14.

[0052] in:

[0053] The prefabricated concrete pier segment can be a hollow pier or a solid pier, and the section form can be circular, rectangular or square.

[0054] The upper and lower parts of each prefabricated concrete pier segment are correspondingly and uniformly distributed with three "["-shaped grooves a1 along the circumferential direction; between two ...

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Abstract

The invention discloses a prefabricated assembly pier structure allowing rapid leveling and a construction method thereof. The pier structure includes a prefabricated concrete pier having [-shaped grooves, dual-wall steel bases sleeving lower parts of prefabricated concrete pier sections, dual-wall steel bushing sleeving upper parts of the prefabricated concrete pier sections, connection steel bars and steel bar connectors for connecting vertical adjacent sections of the prefabricated concrete pier, jacks arranged in the [-shaped grooves, and steel protection covers welded on outer parts of the [-shaped grooves. The jacks for rapid leveling are placed in the [-shaped grooves formed in the sections, the steel bar connectors are used to lock and connect the steel bars after leveling, the jacks are pulled out, super delayed non-shrink mortar is poured in the [-shaped grooves to protect the connected connection steel bars. Reliable and accurate assembly of the prefabricated concrete pier sections can be achieved, rapid leveling and positioning can be achieved, the construction speed is accelerated, and the construction period is shortened.

Description

technical field [0001] The invention belongs to the fields of civil engineering, construction engineering, highway engineering and municipal engineering, and relates to a fast-levelling prefabricated assembled pier structure and a construction method thereof. Background technique [0002] Segmentally assembled prefabricated concrete piers have the advantages of fast construction, reliable quality, little impact on the environment, and little impact on traffic. application. This type of bridge pier divides the pier body into several sections vertically, the longitudinally stressed steel bars are disconnected between the sections, and the sections are connected by dry joints, or filled with epoxy resin, and post-tensioned. connect the segments into a whole. In engineering practice, it is found that segmental assembled bridge piers have difficulty in leveling and positioning during the assembly process, which delays the construction period and wastes a lot of manpower and mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/02E04G21/00
CPCE01D19/02E04G21/00
Inventor 王文炜宋元印张磊石劭阳朱忠锋郑宇宙曹晓波
Owner SOUTHEAST UNIV
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