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A prefabricated concrete bridge pier and its construction method

A concrete and prefabricated technology, applied in the field of concrete bridge piers, can solve the tedious work of threading steel strands, the inability to replicate cylindrical bridge piers, polygonal column bridge piers, etc., to simplify structural design and structural construction, compact structure, reduce construction costs cost effect

Inactive Publication Date: 2021-03-02
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the implementation of this technology makes the work of threading steel strands during the construction of stacked bodies more cumbersome, and in this document, it is only stated that this building block method is only suitable for the construction of square piers. The technicians believe that This technique cannot be replicated in cylindrical piers, polygonal prism piers, therefore, there are limitations of use

Method used

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  • A prefabricated concrete bridge pier and its construction method
  • A prefabricated concrete bridge pier and its construction method
  • A prefabricated concrete bridge pier and its construction method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0069] This embodiment is based on the design and construction of a bridge pier with a hexagonal prism structure. In this example, refer to Figure 1 to Figure 14 The series of drawings illustrate the positive values ​​of the present invention.

[0070] Figure 1 to Figure 3 The principle and design essence of the present invention are given. On the whole, from the cross-section, the pier is formed by stacking three prefabricated blocks 100 of the same structure and size, and each prefabricated block is provided with the same structure and the same Layout of perforations 110 .

[0071] In this embodiment, each prefabricated block 100 has a rhombus-shaped outline when viewed from a top view, and has a thick thickness, which is expressed as a height in the pier structure. The rhombus structure includes angles of 120 degrees and 60 degrees, and the angles The setting of the angle is unique, and the setting of the perforation 110 on the prefabricated block is closely related to...

Embodiment 2

[0086] refer to Figure 15 to Figure 17 , shows the structure of a prefabricated block, which includes two diamond-shaped parts 100', and each rhombus-shaped part 100' is equivalent in structure and size to the prefabricated block in Embodiment 1. The two rhombus-shaped parts in this embodiment Section 100' is two parts of a prefabricated element, half of which overlap, that is to say, two diamond-shaped sections are located on different levels.

[0087] The prefabricated block is a reinforced concrete prefabricated component, and the arrangement of the reinforcement can be carried out in accordance with the architectural design specifications, and will not be repeated here. In the prefabricated block in this embodiment, three groups of perforations 110 are arranged altogether, refer to Figure 17 , the setting requirements of the perforation also refer to the arrangement in the first embodiment to meet the assembly requirements between different prefabricated blocks after as...

Embodiment 3

[0090] refer to Figure 18 to Figure 21 , shows another prefabricated block structure, which includes three rhombic parts 100', each of which is equivalent in structure and size to the rhombic block in Embodiment 1, and every two rhombic parts in this embodiment The three diamond-shaped parts overlap to form a three-layer three-dimensional structure, that is to say, the three rhombus-shaped parts are located on different levels. The assembly construction process is the same as the second embodiment.

[0091] The above three embodiments are for the design and assembly construction process of the hexagonal prism structure, and the prefabricated block is used as a standard module in the above process, only one set of prefabricated molding molds is enough, and the structure is unified during the construction stage, greatly improving The construction process is simplified and the construction efficiency is improved.

[0092] The following examples are partly directed to the assem...

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Abstract

The invention discloses an assembled concrete pier. The pier includes a base part, a pier body part and a prefabricated beam part. The pier body part is stacked by standard prefabricated blocks, and the standard prefabricated blocks have at least one structure, the rhombus structure has an angle of 120 degrees and an angle of 60 degrees, and there are six perforations on each rhombus structure, and the six perforations are arranged according to the following rules, after the steel strands pass through the perforations on the virtual circle II from bottom to top The upper end is fixedly connected with the prefabricated beam; the steel pin is fixed along the perforation on the virtual circle I. It also discloses a construction method. The above-mentioned standard prefabricated blocks are stacked from bottom to top, and fixed with steel pins and steel strands. During the stacking process, bonding mortar is used to fill the joints. The outer surface is wrapped with carbon fiber mesh cloth, bonded with adhesive, and cured. This technology simplifies structural design and structural construction, reducing construction costs.

Description

technical field [0001] The invention relates to a concrete bridge pier with an assembled construction method, in particular to the technical field of a standardized modularized, miniaturized and conveniently constructed concrete bridge pier and a construction method. Background technique [0002] In the current construction process of concrete bridge piers, there is a construction technology called prefabricated construction technology. This technology takes factory prefabricated components as the main components and carries out on-site assembly construction. In this technology, in the design stage, the pier is usually divided into sections at the design height of the pier to form columnar or pie-shaped prefabricated components. Taking a single pier with a design height of 10 meters and a diameter of 1 meter as an example, in the height direction If the above design is a three-segment structure, the self-weight of each prefabricated pier component reaches 9 tons. If the di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/02E01D21/00E01D101/26
CPCE01D19/02E01D21/00E01D2101/26
Inventor 邢德进王保群董旭
Owner SHANDONG JIAOTONG UNIV