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Concrete continuous box girder of corrugated steel web for curved bridge

A technology of corrugated steel web and concrete box girder, applied in bridges, buildings, etc., can solve the problems of high cost, difficult construction and complexity

Active Publication Date: 2013-01-16
HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, all curved bridges with corrugated steel webs adopt cast-in-situ structures, and the corrugated steel webs are laid out according to curves. When there are roads that need to be guaranteed, the construction is difficult and the cost is high

Method used

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  • Concrete continuous box girder of corrugated steel web for curved bridge
  • Concrete continuous box girder of corrugated steel web for curved bridge
  • Concrete continuous box girder of corrugated steel web for curved bridge

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Embodiment Construction

[0021] In conjunction with the accompanying drawings, the following embodiments of the present invention are given, but the present invention is not limited to the following embodiments.

[0022] Such as Figure 1-4 Shown: the continuous box girder with corrugated steel web concrete for a curved bridge described in this embodiment is composed of a prefabricated linear corrugated steel web concrete I-beam unit 1 to form a curved corrugated steel web concrete box girder, namely The I-beam unit 1 is prefabricated in a straight line, and can be made of reinforced concrete or prestressed concrete. The prestressed steel bars can be constructed by the known pre-tensioning method or post-tensioning method. The I-beam unit 1 is erected and installed on the completed pier body 9 and cover beam 8 . The precast concrete top slab, precast concrete bottom slab, precast concrete beam and transverse reinforcement of the transverse diaphragm of two adjacent corrugated steel web concrete I-bea...

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Abstract

The invention discloses a concrete continuous box girder of a corrugated steel web for a curved bridge. A curved corrugated steel web concrete continuous box girder is formed by a prefabricated linear corrugated steel web concrete I-shaped beam unit (1), namely the prefabricated linear corrugated steel web concrete I-shaped beam unit (1) is erected on a pier body (9) and a capping beam (8); the I-shaped beam is regarded as a supporting point to pour top and bottom board wet joint concrete (2) and top board cantilever section flange concrete (3) to form a box girder; a curved shape of the curved bridge is subjected to transverse width adjustment fit by using a flange cantilever section, and a single-hole box girder is constructed; and the continuous box girder is formed by pouring beam concrete (4) of each hole box girder. The concrete continuous box girder provided by the invention uses factory-like prefabrication and bracket-free construction, so as to be beneficial to ensuring and accelerating a construction progress. The standard factory-like construction of the corrugated steel web prefabricating component can effectively ensure the engineering quality, and has the advantages of simple structure, good economical efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of bridges for highways and railways, and mainly relates to a continuous box girder with corrugated steel web concrete for curved bridges. Background technique [0002] Due to the most essential difference between the structure of the curved bridge and the straight bridge—bending-torsion coupling problem, the calculation of the structural force is complicated, the design and construction are more difficult than the straight bridge, and it is prone to cracking of the roof, bottom plate and web, and the box girder Bridge diseases such as beam creep, and even accidents such as bridge overturning and collapse due to vehicle partial loads. [0003] Concrete box girder with corrugated steel web is a new type of steel-concrete composite structure, which makes full use of the advantages of concrete compression resistance and high shear yield strength of corrugated steel web, and is an economical, reasonable and effi...

Claims

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Application Information

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IPC IPC(8): E01D2/04
Inventor 汤意李华强李宏瑾边骏琪王武岗
Owner HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
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