Truss-type steel box beam diaphragm

A steel box girder and truss-type technology, applied in bridges, buildings, etc., can solve the problems of high steel volume index and poor technical and economical efficiency of solid-web diaphragms, and achieve easy maintenance, convenient construction, and increased internal space Effect

Pending Publication Date: 2017-12-22
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the steel volume index of the solid-web diaphragm is high, and the technical and economic efficiency is poor

Method used

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  • Truss-type steel box beam diaphragm
  • Truss-type steel box beam diaphragm
  • Truss-type steel box beam diaphragm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Example: such as figure 2 As shown, this embodiment provides a truss-type steel box girder diaphragm. The diaphragm is composed of truss upper chord 7 , truss lower chord 8 , truss web 9 , upper chord gusset 10 , lower chord gusset 11 and other components. Among them, the truss upper chord 7 is composed of a T-shaped member composed of a truss upper chord web 7a and a truss upper chord flange 7b, and the truss lower chord 8 is a T-shaped member composed of a truss lower chord web 8a and a truss lower chord flange 8b. The truss web member 9 is made up of circular section steel pipe 9a or channel steel 9b and other shaped steel.

[0026] In the truss-type diaphragm, the truss web 9 is welded to the truss upper chord 7 and the truss upper chord 8 through the upper chord gusset 10 and the lower chord gusset 11 respectively, forming a truss structure. The truss structure is welded with the steel box girder top plate 1, steel box girder bottom plate 2, and steel box girder...

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PUM

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Abstract

The invention specifically relates to a truss-type steel box beam diaphragm. The truss-type steel box beam diaphragm includes a diaphragm body installed in a steel box beam, and is characterized in that the diaphragm body adopts a truss-type structure, and the truss-type structure is welded to the inner wall of the steel box beam to form a truss-type steel box beam structure. The truss-type diaphragm body is positioned inside the steel box beam, not only can indoor constructional layout of the steel box beam be simplified, but the steel consumption of the steel box beam is reduced, and moreover, the inner space of the steel box beam is increased, so that more convenience is provided for the layout and maintenance of inner pipelines of the steel box beam.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a truss type steel box girder diaphragm. Background technique [0002] The steel box girder is generally a closed box structure formed by welding the top plate, bottom plate, web plate, diaphragm and stiffeners. Due to the good bending, torsional and lateral stability of the box structure, the steel box girder is a commonly used structural form of long-span bridges. Steel box girders are also increasingly widely used in small and medium-span bridge projects with small radius, special-shaped beams, intersections, limited building heights, rapid construction and bridge landscape requirements. [0003] The thickness of the roof, bottom and web of the steel box girder is very small compared with the height and width of the bridge, which is a typical closed thin-walled structure. In order to prevent transverse bending, torsion and distortion of the steel box girder sectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04
CPCE01D2/04
Inventor 岳贵平沈炯伟
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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