Top plate transverse stiffening type corrugated steel web combined box girder

A corrugated steel web, combined box technology, applied in the direction of bridges, bridge materials, bridge construction, etc., can solve the problems of large amount of engineering materials, hindering the development of large span of bridge structure, lightweight direction, and self-heavy weight, etc. Shear resistance, superior structural stress and construction performance, and the effect of simple construction

Pending Publication Date: 2022-06-03
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Traditional box girders use concrete webs, which require a large amount of engineering materials and are heavy, which hinders the further development of bridge structures in the direction of large-span and light weight

Method used

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  • Top plate transverse stiffening type corrugated steel web combined box girder
  • Top plate transverse stiffening type corrugated steel web combined box girder
  • Top plate transverse stiffening type corrugated steel web combined box girder

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Embodiment Construction

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] A roof transversely stiffened corrugated steel web composite box girder, comprising a concrete top plate 1, a concrete bottom plate 2, a corrugated steel web 3, a concrete transverse stiffener 4, a transverse prestressed steel bundle 5, a longitudinal joint steel bar 6, and a transverse penetration steel bar 7, stud key 8; the corrugated steel web 3 is composed of straight plate section 31, inclined plate section 32 and arc section 33; the concrete transverse stiffener 4 is composed of the outer transverse stiffener 41 of the web and the web The inner transverse stiffener 42 is composed; the transverse prestressed steel bundle 5 includes the transverse prestressed steel bundle 51 in the top plate and the transverse prestressed steel bundle 52 in the transverse stiffener;

[0032] The concrete top plate 1 , the concrete bottom plate 2 and the corrug...

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Abstract

The invention discloses a top plate transverse stiffening type corrugated steel web combined box girder which comprises a concrete top plate, a concrete bottom plate, corrugated steel webs, concrete transverse stiffening ribs, transverse prestressed steel beams, longitudinal joint steel bars, transverse penetrating steel bars and stud keys. The concrete transverse stiffening ribs are connected to the lower portion of the concrete top plate and symmetrically distributed in the transverse direction of the bridge. The transverse stiffening ribs are divided into web plate outer transverse stiffening ribs and web plate inner transverse stiffening ribs; the cross section of the web outer transverse stiffening rib is triangular, and the thickness of the cross section is linearly increased from the end part of the cantilever slab to the root part; the two ends of the corrugated steel web are connected into the concrete top plate and the concrete bottom plate in an embedded connection mode. The concrete transverse stiffening ribs are connected with the side surfaces of the corrugated steel webs through stud keys; and transverse prestressed steel beams are arranged in the concrete top plate and the concrete transverse stiffening ribs. The advantages of compression resistance of the concrete and high shear strength of the corrugated steel web are fully utilized, and the dead weight of the upper portion of the bridge can be reduced.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a roof transversely stiffened corrugated steel web composite box girder. Background technique [0002] With the development of economy and the progress of society, the characteristics of traffic load gradually tend to be large flow and large axle load, and the increase of traffic flow makes higher requirements for the design of modern highway bridges. In order to meet the needs of the development of bridge structures in the direction of long span, wide deck and light weight, the transversely stiffened corrugated steel web combined wide-body box girder has attracted more and more attention from bridge designers. [0003] The traditional box girder uses concrete webs, and the amount of engineering materials is large and the weight is heavy, which hinders the further development of bridge structures in the direction of large span and light weight. Since the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D19/00E01D101/28E01D101/30
CPCE01D2/04E01D19/00E01D2101/285
Inventor 周满苏小龙庄海燕廖家聪
Owner WUHAN UNIV
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