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Partial filling type steel box concrete continuous composite girder bridge and construction method thereof

A technology of steel box concrete, construction methods, applied in bridges, bridge construction, erection/assembly of bridges, etc.

Inactive Publication Date: 2014-11-19
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method of a partially filled steel box concrete continuous composite girder bridge to solve the problem of the crack resistance of the reinforced concrete bridge deck in the middle support area

Method used

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  • Partial filling type steel box concrete continuous composite girder bridge and construction method thereof
  • Partial filling type steel box concrete continuous composite girder bridge and construction method thereof
  • Partial filling type steel box concrete continuous composite girder bridge and construction method thereof

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Embodiment Construction

[0018] Embodiments of the invention are described in detail below, but the invention can be practiced in many different ways as defined and covered by the claims.

[0019] Please refer to Figure 1 to Figure 4 , the invention provides a construction method of a partially filled steel box concrete continuous composite girder bridge, comprising: Step 1, erecting a steel box continuous beam 1; Step 2, pouring concrete in the middle support area 2; Step 3, The first reinforced concrete bridge deck 5 is poured in the mid-span area 3; step 4, the second reinforced concrete bridge deck 6 is poured in the middle support area 4.

[0020] Through the above method, the present invention constructs the bridge deck in sections, the purpose of which is to improve the crack resistance of the reinforced concrete bridge deck in the mid-span section. The tensile stress is generated in the bridge deck in the middle bearing area after pouring, and the crack resistance of the reinforced concrete ...

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Abstract

The invention relates to a partial filling type steel box concrete continuous composite girder bridge and a construction method thereof. The construction method comprises the following steps of (1) erecting steel box continuous girders; (2) filling concrete in a middle support area portion; (3) pouring a first reinforcement concrete bridge deck in a midspan area; and (4) pouring a second reinforcement concrete bridge deck in the middle support area. By the method, the deck of the bridge is subjected to section construction, so that the anti-cracking ability of the reinforcement concrete bridge deck of the middle support area is improved, the bridge deck of the midspan area is assembled after being subjected to a pouring procedure, tensile stress cannot be generated in the bridge deck of the middle support area which is subjected to the pouring procedure later by the weight of the bridge deck of the midspan area, and the anti-cracking ability of the reinforcement concrete bridge deck of the middle support area is improved.

Description

technical field [0001] The invention relates to the construction field, in particular to a construction method of a partially filled steel box concrete continuous composite girder bridge. Background technique [0002] The main feature of the internal force distribution of continuous beams is the large negative moment and shear force in the middle support area at the same time, while the middle support area of ​​the traditional steel-concrete continuous composite girder bridge is under the action of negative bending moment, and the bridge deck is located In the tension zone, after cracking and exiting the work, it has little contribution to the bending and shearing capacity of the section, but the bending and shearing capacity of the middle support section is low. [0003] Partially filled steel box-concrete continuous composite girder bridges have the following advantages: (1) The mechanical performance of the negative moment zone is improved, which overcomes the situation t...

Claims

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Application Information

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IPC IPC(8): E01D1/00E01D2/04E01D21/00
Inventor 郑艳莫时旭周迎春周晓冰张堃席季柳
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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