Large-span variable-width corrugated web steel box-concrete continuous beam bridge and construction method thereof

A technology of corrugated web and steel box girder, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of large amount of steel used in steel-concrete composite girder, insufficient optimization of steel girder bearing capacity, and reduction of composite structure deformation deflection, etc. Achieve the advantages of material strength, easy to ensure welding quality, and little effect of shrinkage and creep

Pending Publication Date: 2020-05-29
甘肃省交通规划勘察设计院股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing construction technology of steel-concrete composite beams mainly includes hoisting steel beams, cast-in-place concrete, bridge deck pavement and other processes. Although the structural stress is clear, the bearing capacity of steel beams is not fully optimized, resulting in Large amount; the use of bracket construction can greatly optimize the force of the steel beam, reduce the deformation deflection of the composite structure, the steel beam has more abundance, and save steel

Method used

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  • Large-span variable-width corrugated web steel box-concrete continuous beam bridge and construction method thereof
  • Large-span variable-width corrugated web steel box-concrete continuous beam bridge and construction method thereof
  • Large-span variable-width corrugated web steel box-concrete continuous beam bridge and construction method thereof

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Embodiment 1

[0054] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] Please refer to Figure 1-8 ,in, figure 1 It is a schematic cross-sectional view of the long-span and variable-width corrugated web steel box-concrete composite continuous girder bridge in Example 1 of the present invention Figure 1 ; figure 2 It is a schematic cross-sectional view of the long-span and variable-width corrugated web steel box-concrete composite continuous girder bridge in Example 1 of the present invention Figure II ; image 3 It is a schematic elevation view of the long-span variable-width corrugated web steel box-concrete composite continuous girder bridge of Embodiment 1 of the present invention; Figure 4 It is a schematic plan view of the steel roof of the long-span variable-width corrugated web ...

Embodiment 2

[0084] Please refer to Figure 9-14 ,in Figure 9 It is a schematic cross-sectional view of the long-span and variable-width corrugated web steel box-concrete composite continuous girder bridge of Embodiment 2 of the present invention Figure 1 ; Figure 10 It is a schematic cross-sectional view of the long-span and variable-width corrugated web steel box-concrete composite continuous girder bridge of Embodiment 2 of the present invention Figure II ; Figure 11 It is a schematic diagram of the elevation of the long-span variable-width corrugated web steel box-concrete composite continuous girder bridge of Embodiment 2 of the present invention; Figure 12 It is a schematic plan view of the steel roof of the long-span variable-width corrugated web steel box-concrete composite continuous girder bridge of Embodiment 2 of the present invention; Figure 13 It is a schematic plan view of the steel floor of the long-span variable-width corrugated web steel box-concrete composite ...

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Abstract

The invention relates to the technical field of bridges, in particular to a large-span variable-width corrugated web steel box-concrete continuous beam bridge and a construction method thereof. The continuous beam bridge comprises a plurality of corrugated web steel box beams and shear nails arranged on the corrugated web steel box beams, and further comprises corrugated web steel box beams arranged on a bridge deck slab, cantilever vertical plates welded to the corrugated web steel box beams and cantilever stiffening plates welded to the corrugated web steel box beams. The end cross beam concrete, middle fulcrum beam bottom concrete and middle fulcrum box girder concrete are poured into the corrugated web steel box beams, and an integrated body is formed by connecting with the corrugatedweb plate steel box beam through shear nails. The linear large-span variable-width corrugated web steel box-concrete combined continuous box beam bridge is convenient to design and construct, more reasonable in structural stress, less in steel consumption, capable of transporting and mounting steel box beam sections and convenient to construct.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a large-span and variable-width corrugated web steel box-concrete continuous beam bridge and a construction method. Background technique [0002] Shaped web steel box-concrete composite beam is a composite structure that has been widely used in recent years. It has obvious advantages in the application of long-span and ultra-wide bridges. Compared with flat steel webs, corrugated steel webs can avoid absorbing longitudinal prestress , improve the introduction of prestressed steel beams, the bridge deck shrinkage and creep effects are small, the shear buckling resistance is strong, and the adaptability is stronger in highways and municipal bridges. Therefore, it is necessary to design a long-span variable-width corrugated web steel box-concrete composite continuous box girder bridge, which can gradually replace concrete bridges through the advantages of steel-concrete composite st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D19/12E01D21/00
CPCE01D2/04E01D19/125E01D21/00
Inventor 武维宏李光明马胜午张春明景燕康建龙华旭东
Owner 甘肃省交通规划勘察设计院股份有限公司
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