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The three-beam intersection structure of steel box girder with single-box three-chamber section and manufacturing method thereof

A single-box three-chamber, steel box girder technology, applied in bridges, bridge parts, bridge construction, etc., to achieve the effect of improving structural reliability, reducing risks, and avoiding stress concentration

Active Publication Date: 2017-01-18
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for urban bridges with high landscape requirements, there may be a shape where multiple beams meet at one or more places

Method used

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  • The three-beam intersection structure of steel box girder with single-box three-chamber section and manufacturing method thereof
  • The three-beam intersection structure of steel box girder with single-box three-chamber section and manufacturing method thereof
  • The three-beam intersection structure of steel box girder with single-box three-chamber section and manufacturing method thereof

Examples

Experimental program
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Embodiment

[0039] Such as figure 1 , Figure 4 ,and Figure 5 As shown, the three-girder intersection structure of steel box girder with single box and three-chamber section is adopted, including A, B, C three beams 2, 2', 2", A, B, C three beams 2, 2', 2" The angle between the planes is 90 to 120 degrees, and the three beams 2, 2', 2" of A, B, and C meet at node 1.

[0040] Such as figure 2 Shown, A, B, C three beams 2, 2 ', 2 " are respectively made up of A, B, C beam roof 21, 21 ', 21 ", A, B, C beam floor 22, 22 ', 22 ", A, B, C beam inclined web 23, 23', 23", A, B, C beam straight web 25, 25', 25", and A, B, C beam diaphragm 26, 26', 26 "Welded into a steel box girder with a trapezoidal cross-section.

[0041] Each beam is set separately: 1 roof, 2 inclined webs, 2 reinforced webs, 2 straight webs, 1 bottom plate, and several transverse partitions. The top plate and the bottom plate can be kept parallel to the geoid, or can have a certain angle with it. The top plate can be ...

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Abstract

The invention provides a three-beam intersection structure of a steel box girder with single-box three-chamber section and a manufacturing method thereof. The three-beam intersection structure comprises three beams A, B and C having a plane included angle of 90 to 120 degrees, and an intersected junction. The junction top board and the junction bottom board are hexagonal, and the three outer straight web plates and the three diaphragmss are alternatively arranged around six edges of the junction top plate and the junction bottom plate, and the three diaphragms are connected to the three beams A, B, and C respectively. Each beam and junction are separately processed to form a large section and then joined together. When each beam or the junction is processed, the beam or junction top board shall be placed on the jig frame first, and the straight web plate, diaphragm, inclined web plate, and bottom plate shall be installed one by one, or the inner straight web plate, outer straight web plate, diaphragm and bottom plate shall be installed one by one; when the beam is connected to the juction, the bottom plate, web plate and top plate of the beam and juction shall be welded one by one. In the present invention, the inclined web plate connects suitably on the force transfer path and the outer web plate transfers force uniformly; the straight web connects suitably on the force transfer path and the inner web plate transfers force uniformly.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a three-girder intersection structure using a steel box girder with a single-box three-chamber section and a manufacturing method thereof. Background technique [0002] Existing bridges are mostly single-girder structures, or structures in which multiple beams are arranged in parallel, and structures where multiple beams meet at one place are rare. [0003] However, for urban bridges with high landscape requirements, there may be shapes where multiple beams meet at one or more places. [0004] Therefore, there is an urgent need for a structure where multiple beams meet to solve structural stress and implementation problems. Contents of the invention [0005] Aiming at the deficiencies of the prior art, the present invention provides a steel box girder with a single-box three-chamber cross section three-beam intersection structure and its manufacturing method. powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/00
CPCE01D19/00E01D21/00
Inventor 胡方健冯师蓉汤秋华张晓松王旖澄王伟实徐海磊
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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