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Bearing-socket type prefabricated pier connecting structure and construction method thereof

A connection structure, socket-type technology, applied in infrastructure engineering, bridges, bridge parts, etc., can solve the problems of hidden safety hazards, difficulty in checking the fullness of grouting, and high construction fault tolerance.

Pending Publication Date: 2020-10-23
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The assembly construction is simple and the construction fault tolerance rate is high, which can improve the defects of the existing technology such as potential safety hazards and difficulty in checking the fullness of grouting

Method used

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  • Bearing-socket type prefabricated pier connecting structure and construction method thereof
  • Bearing-socket type prefabricated pier connecting structure and construction method thereof
  • Bearing-socket type prefabricated pier connecting structure and construction method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] see Figure 1 to Figure 3 As shown, the present invention provides a supporting-socket type prefabricated bridge pier connection structure, including a prefabricated pier body 1 and a cap 2 arranged under the prefabricated pier body 1;

[0036] The middle part of the platform 2 is provided with a platform groove 21 with an upward opening along the vertical direction, see figure 1 As shown, there are several pre-buried steel bars 22 arranged vertically in the platform cap 2, see figure 2 As shown, in this embodiment, a total of twelve steel bars 22 reserved for the cap are provided, and the twelve steel bars 22 reserved for the cap are distributed on the outer side of the groove 21 of the cap along the circumference, and the reserved steel bars 22 for the cap are A certain length of free end protrudes from the upper surface of the bearing platform 2. In this embodiment, the reserved steel bar 22 of the bearing platform is a vertical steel bar with a 90° hook at the bot...

Embodiment 2

[0044] Based on the same inventive idea, see Figure 4 to Figure 7 As shown, the present invention also provides a construction method for a supporting-socket type prefabricated pier connection structure, comprising the following steps:

[0045] The cap 2 is fixed on the bridge pile foundation 4, and the cap 2 is provided with a cap groove 21 with an upward opening, and a number of pre-embedded steel bars 22 for the cap are embedded in the cap 2 along the vertical direction. The platform reserved steel bars 22 are distributed on the outer side of the platform groove 21 along the circumference, and the platform reserved steel bars 22 extend a certain length of free end from the upper surface of the platform 2;

[0046] see Figure 4 As shown, pour an appropriate amount of high-strength grouting material in the cap groove 21;

[0047] see Figure 5 As shown, the prefabricated pier body 1 is hoisted on the cap 2, and the gasket 3 is set on the cap 2 to adjust the vertical conn...

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Abstract

The invention discloses a bearing-socket type prefabricated pier connecting structure. The structure comprises a prefabricated pier body and a bearing platform, a bearing platform groove is formed inthe bearing platform; a plurality of bearing platform reserved steel bars arranged in the vertical direction are pre-buried in the bearing platform. The prefabricated pier body sequentially comprisesan exposed end, a bearer and an embedding end from top to bottom. The bearer is provided with a plurality of steel bar inserting grooves matched with reserved steel bars of the bearing platform in thecircumferential direction. The free ends of the plurality of bearing platform reserved steel bars are respectively inserted into the steel bar inserting grooves; the outer wall of the embedded end isprovided with a plurality of annularly-protruding stand column shear keys. The embedded end is embedded into the groove of the bearing platform; the lower surface of the bearer is placed on the uppersurface of the bearing platform; grouting materials are poured into the steel bar inserting grooves and the bearing platform grooves. The volume of the grouting material can be adopted to calculate the pouring amount of the grouting material, a gap between the bearing platform and the prefabricated pier body is large, the phenomenon of non-fullness does not exist, splicing construction is easy, the construction error-tolerant rate is high, and the defects that in the prior art, potential safety hazards exist, and the grouting fullness degree is not easy to check can be overcome.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a support-socket type prefabricated pier connection structure and a construction method thereof. Background technique [0002] The traditional construction of bridge substructures in my country is mainly based on manual lashing and on-site pouring, while prefabricated assembly construction is a major change in construction methods and an important measure to promote supply-side structural reforms and new transportation infrastructure construction. It is conducive to saving labor, reducing construction pollution, improving project quality and construction efficiency, and thus developing green construction. [0003] In the prior art, for the assembly of prefabricated pier columns and caps of bridge structures, pre-embedded grouting sleeves, pre-embedded metal bellows and prestressed steel strands are usually used in the columns or caps; The splicing mode of embedded pa...

Claims

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Application Information

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IPC IPC(8): E01D19/02E01D19/00E01D21/00E02D27/12E02D27/14
CPCE01D19/00E01D19/02E01D21/00E02D27/12E02D27/14
Inventor 葛继平赖路奇王志刚
Owner SHANGHAI INST OF TECH
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