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Corrugated steel web-based steel-wood combined box girder

A technology of corrugated steel webs and steel-wood combination, which is applied in bridges, bridge materials, bridge construction, etc., can solve the problems of large influence of concrete setting effect, easy quality defect reinforcement maintenance, inconvenient transportation and installation, etc. Inconvenient transportation and installation, less affected by climate, and simple structure

Inactive Publication Date: 2012-12-19
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual construction process, due to the large volume of the concrete roof and floor, its transportation and installation are not convenient; secondly, the concrete roof and floor are easy to crack, and often work with cracks, so the construction is difficult, quality defects are prone to occur, and reinforcement and maintenance are difficult
In addition, the construction of concrete roof and floor is greatly affected by the climate, especially the low temperature in winter has a great influence on the setting effect of concrete, and its durability has not been popularized in underdeveloped areas.
At the same time, the curing and hardening period of the concrete roof and floor is long, and the construction period is long

Method used

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  • Corrugated steel web-based steel-wood combined box girder
  • Corrugated steel web-based steel-wood combined box girder
  • Corrugated steel web-based steel-wood combined box girder

Examples

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Embodiment Construction

[0035] Such as figure 1 As shown, the present invention comprises a wooden top board 1-1, a wooden bottom board 1-2 positioned directly below the wooden top board 1-1 and two steel panels respectively arranged on the left and right sides between the wooden top board 1-1 and the wooden bottom board 1-2. The web 2, the wooden top plate 1-1 and the wooden bottom plate 1-2 are all arranged horizontally, and the two steel webs 2 are arranged symmetrically from left to right. Both the longitudinal length of the wooden top plate 1-1 and the wooden bottom plate 1-2 are consistent with the span of the constructed box girder, and the widths of both are consistent with the transverse width of the constructed box girder. combine figure 2 and Figure 5 , the wooden top board 1-1 and the wooden bottom board 1-2 are laminated wooden boards 6, and the laminated wooden boards 6 are composed of a plurality of strip-shaped wooden boards assembled side by side, and the plurality of strip-shape...

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Abstract

The invention discloses a corrugated steel web-based steel-wood combined box girder which comprises a wood top plate, a wood bottom plate positioned right below the wood top plate, and steel webs distributed between the wood top plate and the wood bottom plate; the longitudinal lengths of the wood top plate and the wood bottom plate are both consistent with the span of the constructed box girder, and the widths of the two are both consistent with the cross bridge width of the constructed box girder; the wood top plate and the wood bottom plate are both laminated wood plates, each laminated wood plate is formed by assembling a plurality of strip-shaped wood plates side by side, the plurality of strip-shaped wood plates are fastened and connected as a whole through a plurality of prestressed steel bundles arranged in cross bridge direction; the plurality of strip-shaped wood plates are arranged on the same one plane and distributed in longitudinal bridge direction; and two steel webs are both of corrugated steel plates. The corrugated steel web-based steel-wood combined box girder is reasonable in structure design, convenient to transport and install, shorter in construction period, small in influence by weather and good in use effect, and can solve various problems of the existing corrugated steel web prestressed concrete combined box girder.

Description

technical field [0001] The invention relates to a steel-wood composite box girder, in particular to a steel-wood composite box girder based on corrugated steel webs. Background technique [0002] Since the ACSI Association introduced the prestressed concrete composite box girder with corrugated steel webs as a bridge structure in 1988, all countries in the world have conducted research on this composite structure. The engineering volume of the substructure is reduced. In addition, due to the low longitudinal stiffness of the corrugated steel web, it does not restrain the creep and shrinkage deformation of the upper and lower concrete slabs, thus avoiding the transfer of the prestress of the box girder section to the steel web and improving the prestress. Stress efficiency reduces the amount of prestressed steel, effectively solves the problem of concrete web cracking and improves durability. [0003] However, the top and bottom slabs used in the corrugated steel web prestr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D101/10E01D101/30
Inventor 刘永健李娜傅梅珍程高
Owner CHANGAN UNIV
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