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Bracket for construction of zero-block with over-width and low-pier box beam and construction method

A construction method and technology of block zero, which is applied to bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as potential safety hazards, heavy weight of concrete pouring of block zero, etc.

Inactive Publication Date: 2017-08-04
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the horizontal dimension of the zero block is larger than that of the pier top, and the overhanging dimension is large, it will bring safety hazards to the construction.
For the construction of bridges such as crossing roads and rivers, there is no condition for erecting a full-scale bracket. Although the layout of dense bracket reinforcement can reduce the risk, it cannot completely solve the problem of the heavy weight of the zero-block concrete pouring.

Method used

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  • Bracket for construction of zero-block with over-width and low-pier box beam and construction method
  • Bracket for construction of zero-block with over-width and low-pier box beam and construction method
  • Bracket for construction of zero-block with over-width and low-pier box beam and construction method

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[0028] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0029] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0030] As introduced in the background technology, in the prior art, when the horizontal dimension of the zero b...

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Abstract

The invention relates to a bracket and a construction method for the construction of the zero block of an over-wide and short pier box girder, belonging to the field of road and bridge construction. The main steps include: installing triangular brackets around the pier, and installing the triangular brackets on the embedded parts of the brackets in the pier; placing distribution beams above the triangular brackets, placing external formwork on the distribution beams, and installing inner Formwork; the lower end of the strut is installed on the embedded part of the cap, and the upper end is connected with the distribution beam; after the strut is installed, the concrete of the zero block can be poured.

Description

technical field [0001] The invention relates to the field of road and bridge construction, in particular to a bracket and a construction method for the construction of the zero block of the continuous box girder with an over-wide and short pier. Background technique [0002] Driven by the rapid development of the domestic economy, high-speed railways and expressways have also entered a stage of rapid development. In order to meet the requirements of various regions, continuous girder bridges crossing railways, highways, rivers and canyons are gradually increasing. Generally, the continuous girder bridge is constructed by cantilever casting with hanging baskets, and the zero block is constructed by brackets. However, when the horizontal dimension of the zero block is larger than that of the pier top, and the overhanging dimension is large, it will bring potential safety hazards to the construction. For the construction of bridges such as crossing roads and rivers, there is ...

Claims

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Application Information

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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张峰林春金韩福洲
Owner SHANDONG UNIV
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