CN104988843A - Bridge combined by steel structural box girder and concrete bridge deck panel - Google Patents

Bridge combined by steel structural box girder and concrete bridge deck panel Download PDF

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Publication number
CN104988843A
CN104988843A CN201510419514.5A CN201510419514A CN104988843A CN 104988843 A CN104988843 A CN 104988843A CN 201510419514 A CN201510419514 A CN 201510419514A CN 104988843 A CN104988843 A CN 104988843A
Authority
CN
China
Prior art keywords
bridge
steel
concrete
box girder
girder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510419514.5A
Other languages
Chinese (zh)
Inventor
王宾
王剑非
吴冲
孙科
朱文伟
吴波
简义东
刘耀泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUNNAN CONSTRUCTION ENGINEERING STEEL STRUCTURE Co Ltd
Original Assignee
YUNNAN CONSTRUCTION ENGINEERING STEEL STRUCTURE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201520381299 priority Critical
Priority to CN201520381299X priority
Application filed by YUNNAN CONSTRUCTION ENGINEERING STEEL STRUCTURE Co Ltd filed Critical YUNNAN CONSTRUCTION ENGINEERING STEEL STRUCTURE Co Ltd
Priority to CN201510419514.5A priority patent/CN104988843A/en
Publication of CN104988843A publication Critical patent/CN104988843A/en
Pending legal-status Critical Current

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Abstract

The invention provides a bridge combined by a steel structural box girder and a concrete bridge deck panel. The lower part of the bridge is provided with the steel structural box girder (1); the bridge deck panel is in a concrete structure; the concrete-structured bridge deck panel is integrated with the steel structural box girder via a shear key (4); two ends of the steel structural box girder are arranged on bearers (6) of two adjacent bridge piers (5); the steel structural box girder (1) is opened on the top, in a groove shape and has a top plate (1a); the shear key (4) is welded on the top surface of the top plate (1a); and the concrete is cast on the top plate and connected with the top plate via the shear key. Advantages of large bearing capacity of the steel major body and great durableness of the concrete panel are integrated in the bridge; and construction period and maintenance period are greatly shortened compared with a concrete structural bridge.

Description

Steel-structure box girder and concrete slab combined bridge
Technical field
The invention belongs to bridge construction technical field.
Background technology
The bridge that current building engineering field is built is substantially all concrete structure or pure steel structure.The concrete slab good endurance of concrete structure bridge, but exist from great, cross section is thick, and when causing building bridge, bottom bent cap, bridge pier, cushion cap all must increase.In addition, concrete-bridge is cast in situs, long construction period, and curing period is also longer, and concrete-bridge also exists a large amount of concrete block after removing and cannot recycle.Pure steel structure bridge capacity is large, but bridge deck easily produce fatigue crack.
Summary of the invention
The object of the invention is the deficiency existed separately to solve simple concrete-bridge or steel structure bridge, the steel-structure box girder providing can greatly shorten compared with concrete structure bridge a kind of advantage, construction period and curing period collecting the large and concrete slab good endurance of steel agent structure bearing capacity and concrete slab combined bridge.
Object of the present invention is achieved through the following technical solutions.
Steel-structure box girder and concrete slab combined bridge, the substructure of this bridge is steel-structure box girder, bridge deck are concrete structure, and concrete structure bridge deck are connected as a whole with steel-structure box girder by shear key, and steel-structure box girder two ends are placed on the bearing of adjacent two bridge piers; Described steel-structure box girder is the upper shed flute profile case beam of band top board, and shear key is welded in the end face of top board, and concreting is connected as one by shear key and top board on top board.
More than the two flute profile case beams that the upper shed flute profile case beam of steel-structure box girder of the present invention is a flute profile case beam or be arranged in parallel, are connected by auxiliary girder steel between adjacent flute profile steel box-girder, whole flute profile steel box-girder are connected to form an integrated member.
The present invention adopts the form of structure of steel work and concrete composite bridge, gives full play to the advantage of the large and concrete slab good endurance of steel-structure box girder agent structure bearing capacity.Steel-structure box girder and concrete slab are jointly stressed, greatly reduce weight and the rolled steel dosage of bridge, and unit area bridge weight is 1/3 of pure concrete bridge weight, and unit area rolled steel dosage is reduced to 145kg/m 2, be 1/3 of pure steel box-girder weight.Simultaneously because the purer concrete structure bridge of thickness of concrete slab reduces, construction period and curing period also shorten greatly, can significantly improve efficiency of construction.
Accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1 Bridge.
Detailed description of the invention
See the steel-structure box girder shown in Fig. 1, Fig. 2 and concrete slab combined bridge, the substructure of this bridge is steel-structure box girder 1, bridge deck 3 are concrete structure, concrete structure bridge deck are connected as a whole with steel-structure box girder by shear key 4, and steel-structure box girder two ends are placed on the bearing 6 of adjacent two bridge piers 5.Described steel-structure box girder 1 is the upper shed flute profile case beam of band top board 1a, and shear key 4 is welded in the end face of top board 1a, and concreting is connected as one by shear key and top board on top board.The shear key 4 of the present embodiment, for being welded on the peg on top board, also can take other can make the structure of concrete and the fastening combination of top board.According to the width of bridge floor, the upper shed flute profile case beam of steel-structure box girder 1 of the present invention only can be designed to a flute profile case beam, also two that can be designed to be arranged in parallel or three or more root flute profile case beam, be welded to connect by auxiliary girder steel 2 between adjacent flute profile steel box-girder, whole flute profile steel box-girder is connected to form an integrated member, and auxiliary girder steel 2 can adopt H profile steel beam.

Claims (2)

1. steel-structure box girder and concrete slab combined bridge, it is characterized in that, the substructure of this bridge is steel-structure box girder (1), bridge deck (3) are concrete structure, concrete structure bridge deck are connected as a whole with steel-structure box girder by shear key (4), and steel-structure box girder two ends are placed on the bearing (6) of adjacent two bridge piers (5); Described steel-structure box girder (1) is the upper shed flute profile case beam of band top board (1a), and shear key (4) is welded in the end face of top board (1a), and concreting is connected as one by shear key and top board on top board.
2. steel-structure box girder according to claim 1 and concrete slab combined bridge, it is characterized in that, more than the two flute profile case beams that the upper shed flute profile case beam of described steel-structure box girder (1) is a flute profile case beam or be arranged in parallel, connected by auxiliary girder steel (2) between adjacent flute profile steel box-girder, whole flute profile steel box-girder is connected to form an integrated member.
CN201510419514.5A 2015-06-04 2015-07-16 Bridge combined by steel structural box girder and concrete bridge deck panel Pending CN104988843A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201520381299 2015-06-04
CN201520381299X 2015-06-04
CN201510419514.5A CN104988843A (en) 2015-06-04 2015-07-16 Bridge combined by steel structural box girder and concrete bridge deck panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510419514.5A CN104988843A (en) 2015-06-04 2015-07-16 Bridge combined by steel structural box girder and concrete bridge deck panel

Publications (1)

Publication Number Publication Date
CN104988843A true CN104988843A (en) 2015-10-21

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN201520517348.8U Active CN204780559U (en) 2015-06-04 2015-07-16 Steel construction case roof beam and concrete bridge panel combination bridge
CN201510419514.5A Pending CN104988843A (en) 2015-06-04 2015-07-16 Bridge combined by steel structural box girder and concrete bridge deck panel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201520517348.8U Active CN204780559U (en) 2015-06-04 2015-07-16 Steel construction case roof beam and concrete bridge panel combination bridge

Country Status (1)

Country Link
CN (2) CN204780559U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638262A (en) * 2016-12-29 2017-05-10 中国冶集团有限公司 Cross-section variable fish-bellied type box girder concrete symmetric overlapping pouring structure and construction method thereof
CN108625269A (en) * 2018-05-04 2018-10-09 西安市政设计研究院有限公司 A kind of the part opening girder steel and its construction technology of function division design

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106013837B (en) * 2016-07-19 2019-12-17 关喜才 Method and structure system for increasing bearing capacity by combining existing floor and steel structure support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638262A (en) * 2016-12-29 2017-05-10 中国冶集团有限公司 Cross-section variable fish-bellied type box girder concrete symmetric overlapping pouring structure and construction method thereof
CN106638262B (en) * 2016-12-29 2019-04-23 中国一冶集团有限公司 Variable cross-section fish-belly box beam concrete symmetrically overlaps pouring structure and its construction method
CN108625269A (en) * 2018-05-04 2018-10-09 西安市政设计研究院有限公司 A kind of the part opening girder steel and its construction technology of function division design

Also Published As

Publication number Publication date
CN204780559U (en) 2015-11-18

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Application publication date: 20151021

WD01 Invention patent application deemed withdrawn after publication