Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof

A prefabricated assembly and inclined-tensioning technology, which is applied in the erection/assembly of bridges, bridge parts, bridges, etc., can solve the problems that the assembly construction positioning technology is not introduced in detail, and the positioning of bridge piers is difficult

Inactive Publication Date: 2012-06-13
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although this document discloses a special connection relationship between the pier and the cap, it also mentions that the pier body and the cap and between the prefabricated pier bodies need to be positioned before installation, but it does not introduce the assembly construction in detail The positioning technology in the paper, and mentioned that the positioning of the bridge pier is very difficult

Method used

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  • Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof
  • Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof
  • Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as image 3 As shown, a specific embodiment of the inclined-tensioned prefabricated assembled column cap structure of the present invention includes two major parts, the column 1 and the cap 2, which are fixedly connected to form the column cap structure.

[0029] The column 1 is composed of several prefabricated column segments 11, 12, 13 and so on. Each prefabricated column segment is a reinforced concrete component, which is prefabricated in batches in advance according to the design requirements in the prefabricated yard and transported to the construction site. In the present invention, each prefabricated column segment 11 , 12 , 13 is provided with a positioning through hole 15 .

[0030] A prestressing component 3 is anchored in the bearing platform 2 , and the prestressing component 3 is obliquely arranged in the bearing platform 2 and penetrates through the top surface and the side surface of the bearing platform 2 .

[0031] The positioning through hole...

Embodiment 2

[0039] The assembly and positioning process of the inclined-tensioned prefabricated assembled column cap structure of the cap of the present invention is used to realize the positioning between the prefabricated column segment and the cap during the installation process of the cap inclined-tensioned prefabricated assembled column cap structure. Accurate positioning of prefabricated column segments with each other includes the following steps:

[0040] Step 1, refer to image 3 As shown, the prestressed component 3 is fixedly arranged on the platform 2 .

[0041] The prestressed component 3 is a prestressed steel strand, which is obliquely penetrated and arranged between the top surface and the side surface of the platform 2 . Specifically, the prestressed component 3 is anchored on the side of the platform 2 .

[0042] The special feature of the present invention is that the prestressing component 3 also serves as a positioning component.

[0043] Step 2, hoisting the first...

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Abstract

The invention discloses a bearing platform cable-stayed precast assembled column bearing platform structure. The structure comprises a column and a bearing platform, wherein the column is formed by assembling a plurality of precast column segments; each precast column segment is provided with a positioning through hole; and a prestressed part is fixedly arranged in the bearing platform, is obliquely arranged between the top surface and side of the bearing platform in a penetrating manner, serves as a positioning part and penetrates through the positioning through hole in each precast column segment. The invention also discloses an assembling and positioning process of the bearing platform cable-stayed precast assembled column bearing platform structure. The structure and the process have the following beneficial effects: the above structural design and process arrangement are adopted, the prestressed part serves as a positioning part and the positioning through holes are reserved in the precast column segments, thus conveniently realizing accurate positioning between the first precast column segment and the bearing platform as well as between the precast column segments through sleeve fit of the positioning part and the positioning through holes.

Description

technical field [0001] The invention relates to the technical field of road and bridge construction, in particular to a prefabricated and assembled column cap structure of inclined-tensioned caps. The invention also relates to the assembly and positioning process of the inclined-tensioned prefabricated assembled column cap structure of the cap. Background technique [0002] Assembled columns (or bridge piers) have been invented for a long time. Compared with the mature cast-in-place construction technology or overall prefabricated construction technology, it has the advantages of large-scale prefabrication, convenient transportation and installation, and short construction period. But for a long time, the practical application of assembled piers has been very limited. One of the obstacles is the complexity and high technical requirements of the assembled construction process. [0003] Such as figure 1 As shown, CN85202839 discloses a "assembled reinforced concrete prefabri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
Inventor 周振兴闫兴非周良吴勇袁玲
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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