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Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method

A cast-in-place arch bridge and distribution beam technology, applied in the direction of bridges, arch bridges, bridge forms, etc., can solve the problems of deviation in the determination of wood specifications, lack of scientific rigor, improper handling of joints, etc., to prevent eccentric side bending damage and connection. The effect of firmness and reliability, strength and stability

Active Publication Date: 2016-05-04
GUANGXI ROAD CONSTR ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach is not scientific and rigorous enough, and it will easily lead to deviations in the determination of timber specifications, insufficient actual strength, and structural damage accidents.
In addition, the joints between the arched wood (or arched wood truss structure) and between the arched wood (or arched wood truss structure) and the main body of the lower bracket are not handled properly, and joint damage accidents are prone to occur when the joint strength is insufficient
[0005] In terms of environmental protection, when bow-shaped wood (or bow-shaped wooden truss structure) is used as the longitudinal distribution structure, a cast-in-place bridge will consume a lot of wood, which is very unfavorable for environmental protection

Method used

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  • Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method
  • Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method
  • Steel arc distributive girder structure of rod type bracket for cast-in-place arch bridge and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see figure 1 , 2, 3, 4, a kind of cast-in-place arch bridge bar support steel arc-shaped distribution beam structure of the present invention, described structure replaces the wooden arch beam structure in the cast-in-place arch bridge, and supports the construction of the whole arch bridge; the structure consists of Several sections of arc-shaped distribution beams 1 are connected, and a wedge-shaped seat 4 is provided under the arc-shaped distribution beam 1, which is placed on the adjustable jacking 6 on the top of the pole-type full hall support 7; an anti-skid block is arranged above the arc-shaped distribution beam 1 5. Prevent the upper lateral distribution beam from sliding.

[0042] Said construction is made of steel material.

[0043] The curved distribution beam 1 is formed by bending I-shaped steel.

[0044] Flanges 2 are installed at both ends of the arc-shaped distribution beam 1 , through which the sections of the arc-shaped distribution beam 1 are butt...

Embodiment 2

[0061] see figure 1 , 2, 3, 4, a kind of cast-in-place arch bridge bar support steel arc-shaped distribution beam structure of the present invention, described structure replaces the wooden arch beam structure in the cast-in-place arch bridge, and supports the construction of the whole arch bridge; the structure consists of Several sections of arc-shaped distribution beams 1 are connected, and a wedge-shaped seat 4 is provided under the arc-shaped distribution beam 1, which is placed on the adjustable jacking 6 on the top of the pole-type full hall support 7; an anti-skid block is arranged above the arc-shaped distribution beam 1 5. Prevent the upper lateral distribution beam from sliding.

[0062] Said construction is made of steel material.

[0063] The curved distribution beam 1 is formed by bending H-shaped steel.

[0064] Flanges 2 are installed at both ends of the arc-shaped distribution beam 1 , through which the sections of the arc-shaped distribution beam 1 are butt...

Embodiment 3

[0081] see figure 1 , 2, 3, 4, a kind of cast-in-place arch bridge bar support steel arc-shaped distribution beam structure of the present invention, described structure replaces the wooden arch beam structure in the cast-in-place arch bridge, and supports the construction of the whole arch bridge; the structure consists of Several sections of arc-shaped distribution beams 1 are connected, and a wedge-shaped seat 4 is provided under the arc-shaped distribution beam 1, which is placed on the adjustable jacking 6 on the top of the pole-type full hall support 7; an anti-skid block is arranged above the arc-shaped distribution beam 1 5. Prevent the upper lateral distribution beam from sliding.

[0082] Said construction is made of steel material.

[0083] The curved distribution beam 1 is formed by bending channel steel.

[0084] Flanges 2 are installed at both ends of the arc-shaped distribution beam 1 , through which the sections of the arc-shaped distribution beam 1 are butte...

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Abstract

The invention relates to a steel arc distributive girder structure of a rod type bracket for a cast-in-place arch bridge and a construction method. The structure is characterized by replacing a wooden arched girder structure in the cast-in-place arch bridge so as to support the whole arch bridge construction. The structure is formed by connecting a plurality of sections of arc distributive girders, wherein wedge mounts are arranged below the arc distributive girders and are positioned on adjustable top supports at the tops of rod type full framings; and anti-skid chock blocks are arranged above the arc distributive girders and are used for preventing upper transverse distributive girders from sliding. The structure provided by the invention has the advantages of stable and reliable strength and firm and reliable integral connection; the traditional wooden arched girder is replaced, thereby greatly reducing the timber cutting; the structure is convenient to manufacture, install and remove; a load can be reasonably and reliably transferred to the bracket; and the steel arc distributive girders can also be bent and straightened and can be recycled, so that the structure is economical and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of bridge reconstruction, and in particular relates to a steel arc-shaped distribution beam structure and a construction method that are arranged on the top of the support when the rod-type full hall support is used as the construction support for the main arch of a cast-in-situ arch bridge. It is especially suitable for the cast-in-place construction of large-width solid-web slab arches or box-type slab arches. Background technique [0002] Arch bridges have a long history in our country. Although its model Zhaozhou Bridge has been eroded by nature for a long time, it still continues to shine with the light of the scientific and technological wisdom of the Chinese nation. Arch bridges have the advantages of being able to make full use of the high compressive strength of stone or concrete materials to achieve a large spanning capacity, beautiful and durable bridge shape, and relatively low cost. After the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D4/00
CPCE01D4/00E01D21/00
Inventor 张坤球姚青云张勇韦大川胡习文覃向来施炳前唐双美
Owner GUANGXI ROAD CONSTR ENG GRP CO LTD
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