CN110067185A - A kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam - Google Patents
A kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam Download PDFInfo
- Publication number
- CN110067185A CN110067185A CN201910485177.8A CN201910485177A CN110067185A CN 110067185 A CN110067185 A CN 110067185A CN 201910485177 A CN201910485177 A CN 201910485177A CN 110067185 A CN110067185 A CN 110067185A
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- China
- Prior art keywords
- steel
- plate
- steel pipe
- box beam
- steel plate
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
Abstract
The present invention discloses a kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam, is related to technical field of bridge engineering, specifically includes that concrete roof, concrete floor, tabula structure and steel pipe-steel plate combination web；The steel pipe-steel plate combination web, the concrete roof and the concrete floor are connected to form box beam main body, and the tabula structure is arranged in both ends fulcrum and the middle part of the box beam main body.The present invention can reduce bridge self weight, increases bridge span ability, avoids cracking in webs, improve prestress application efficiency, reduce second inner force caused by temperature effect, concrete shrinkage and creep, gives full play to the advantage of two kinds of materials of steel and concrete, it is with good economic efficiency.
Description
Technical field
The present invention relates to technical field of bridge engineering, more particularly to a kind of steel pipe-steel plate combination web steel reinforced concrete combination box
Beam.
Background technique
Concrete box girder is because its bending resistance and torsional rigidity are big, frequently as in, the preferred structure type of Large Span Bridges.But
Concrete box-beam bridge is generally easy to appear two kinds of diseases: beam root (beam-ends) cracking in webs；Mid-span deflection continues to decline, both at home and abroad
There is more serious disease in many large-span prestressed concrete beam bridges.Tracing it to its cause is that concrete box girder self weight is bigger,
Box beam root bending moment, shearing are larger, while web and roof and floor connect into an entirety, the temperature difference of roof and floor and the drying of web
Problem of stress concentration caused by shrinking, creep etc. causes cracking in webs than more prominent, seriously affects the load-carrying properties of structure and resistance to
Long property.
To solve the problems, such as the above two Common Diseases of concrete box girder, a kind of scheme is to replace mixing using flat plate steel web
Solidifying soil web, flat plate steel web shearing strength is big, light-weight, but flat plate steel web longitudinal rigidity is big, and can lose should apply
Vertically and horizontally ribbed stiffener must be welded in the longitudinal prestressing of concrete structure, and to prevent buckling, wastes material, construction
It is complicated.Another scheme is to replace concrete web using corrugated sheet steel, and corrugated sheet steel Out-of Plane Stiffness is big, does not need setting and puts more energy into
Rib, while longitudinal rigidity is small, has fold effect, improves prestress application efficiency, but corrugated steel web plate composite box girder is also deposited
Low in shear stiffness, shear-deformable big, folding shape steel web production processing is complicated, needs specific process equipment, and welding difficulty is big,
Higher cost, it is difficult to which use is in large span beam bridge.
Summary of the invention
The object of the present invention is to provide a kind of steel pipe-steel plate combination web steel reinforced concrete combined box beams, to solve above-mentioned existing skill
Art there are the problem of, can reduce bridge self weight, increase bridge span ability, avoid cracking in webs, improve prestress application effect
Rate reduces second inner force caused by temperature effect, concrete shrinkage and creep, gives full play to the excellent of two kinds of materials of steel and concrete
Gesture, it is with good economic efficiency.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of steel pipe-steel plate combination web steel
Mixed combined box beam, including concrete roof, concrete floor, tabula structure and steel pipe-steel plate combination web；Steel pipe-the steel
Plate compound web plate, the concrete roof and the concrete floor are connected to form box beam main body, the tabula structure arrangement
Both ends fulcrum and middle part in the box beam main body.
Preferably, the steel pipe-steel plate combination web includes the multiple steel pipes and muti-piece plain plate of interval welding.
Preferably, the steel pipe is using round steel pipe or square steel tube or round steel pipe and square steel tube mixed-arrangement；The steel pipe is adopted
When with square steel tube, the straight flange or bending angle point of the square steel tube and the plain plate are welded.
Preferably, the steel pipe-steel plate combination web is provided with two panels, forms single box single chamber box beam main body；Or it is described
Steel pipe-steel plate combination web is provided with multi-disc, forms Single-box multi-chamber box beam body.
Preferably, top flange steel plate and lower flange steel plate, institute is respectively welded in the steel pipe-steel plate combination web edge up and down
It states top flange steel plate and lower flange steel plate passes through connector respectively and connect with the concrete roof, the concrete floor.
Preferably, the tabula structure includes setting among the fulcrum crossbeam and box beam main body of box beam main body both ends setting
Several diaphragm plates, the upper and lower ends of the diaphragm plate are poured with the concrete roof and the concrete floor respectively and build up one
Body, the diaphragm plate are connected with the steel pipe-steel plate combination web by connector；The fulcrum crossbeam and the concrete top
Plate and the concrete floor pour integrally.
Preferably, the steel pipe-steel plate combination web both ends are inserted into the fulcrum crossbeam, the steel pipe-steel plate combination
Web, which is inserted on the plain plate of the part of the fulcrum crossbeam, is arranged aperture, for running through reinforcing bar in the aperture.
It preferably, further include prestressing tendon, the prestressing tendon includes prestressing with bond beam and external pre-stress bundle.
Preferably, the prestressing with bond beam includes prestressing tendon in top plate prestressing with bond beam and bottom-plate body, the top
Prestressing tendon is located in the concrete roof in plate body, and prestressing tendon is located in the concrete floor in the bottom-plate body.
Preferably, the both ends of the external pre-stress bundle are anchored in the fulcrum crossbeam at box beam main body both ends,
The both ends of the external pre-stress bundle are bent up close to the fulcrum crossbeam, and the steering block by the diaphragm plate or additionally arranged is real
The steering of the existing external pre-stress bundle.
The present invention achieves following technical effect compared with the existing technology:
1, it using steel pipe-steel plate combination web steel reinforced concrete combined box beam, can avoid cracking in webs problem, while mitigating girder certainly
15%~25% is weighed, middle span deflexion is reduced, improves bridge span ability；
2, the characteristics of deformation compressible using steel pipe, steel pipe-steel plate combination web indulges bridge to deformability, to mention
High pre-stress applies efficiency, reduces the second inner force of the generations such as creep, shrink because of temperature gradient, concrete roof and floor；
3, steel pipe-steel plate combination web Out-of Plane Stiffness is big, and not needing welding, vertically and horizontally ribbed stiffener construction can meet web
Stability requirement；
4, reasonably two kinds of steel, concrete different materials are combined, improves the stability, intensity and material of structure
Service efficiency；
5, compound web plate can directly be made in factory's welding, and simple structure is easy to process, and roof and floor can be used cast-in-place or pre-
Component processed is convenient for site operation, while box beam Facade form is beautiful.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is steel pipe of the present invention-steel plate combination web plate composite box girder structural schematic diagram；
Fig. 2 is steel pipe-steel plate combination web schematic diagram in Fig. 1 embodiment；
Fig. 3 is another schematic diagram of steel pipe-steel plate combination web in Fig. 1 embodiment；
Fig. 4 is the third schematic diagram of steel pipe-steel plate combination web in Fig. 1 embodiment
Fig. 5 is steel pipe-steel plate combination web and concrete roof and floor connection schematic diagram in Fig. 1 embodiment.
Fig. 6 is steel pipe-steel plate combination web and fulcrum crossbeam connection structure diagram in Fig. 1 embodiment.
Fig. 7 is steel pipe-steel plate combination web and diaphragm plate connection structure diagram in Fig. 1 embodiment；
Wherein, 1, concrete roof；2, concrete floor；3, steel pipe-steel plate combination web；4, top flange steel plate；5, under
Edge of a wing steel plate；6, fulcrum crossbeam；7, diaphragm plate；8, top plate prestressing with bond beam；9, prestressing tendon in bottom-plate body；10, external pre-
Stress beam；11, connector；12, round steel pipe；13, square steel tube；14, plain plate；15, aperture.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in figs. 1-7, the present embodiment provides a kind of steel pipe-steel plate combination web steel reinforced concrete combined box beams, including concrete
Top plate 1, concrete floor 2, steel pipe-steel plate combination web 3, top flange steel plate 4, lower flange steel plate 5, fulcrum crossbeam 6, diaphragm plate
7, top plate prestressing with bond beam 8, prestressing tendon 9, external pre-stress bundle 10 and connector 11 etc. in bottom-plate body.
In the present embodiment, top flange steel plate 4 and lower flange steel plate is respectively welded in about 3 edge of steel pipe-steel plate combination web
5, connector 11 is arranged on the steel plate of the edge of a wing, forms the complete steel member of combined box beam.Two panels steel pipe-steel plate combination web 3 passes through
Connector 11 and concrete roof 1, concrete floor 2 are connected to form combined box beam main body.
In the present embodiment, the beam-ends of box beam main body is arranged in fulcrum crossbeam 6, and diaphragm plate 7 is arranged in box beam main body, can
To arrange multiple tracks diaphragm plate 7, be typically located at span centre, 1/4 across etc. positions.
In the present embodiment, top plate prestressing with bond beam 8 is arranged in concrete roof 1,9 cloth of prestressing tendon in bottom-plate body
It is placed in concrete floor 2, external pre-stress bundle 10 is arranged in box beam, and both ends are anchored in the fulcrum crossbeam 6 of beam-ends, in vitro
Prestressing tendon 10 is being bent up close to beam-ends, and the steering block by diaphragm plate 7 or additionally arranged, which is realized, to be turned to.It is external in the present embodiment
Prestressing tendon 10 is preferably turned to by diaphragm plate 7.Specifically, prestressing tendon is using pre-stressing tendon or other meet demands
Structure.
In the present embodiment, as in Figure 2-4, steel pipe-steel plate combination web 3 is that multiple steel pipes and multi-disc plain plate 14 exist
Interval is welded in factory, and steel pipe can be round steel pipe 12, square steel tube 13 or round steel pipe 12 and 13 mixed-arrangement of square steel tube.Side
The welding position of steel pipe 13 and plain plate 14 can bend angle point (such as Fig. 4 for 13 straight flange of square steel tube (as shown in Figure 3) or square steel tube 13
It is shown).
Further, 12 diameter of round steel pipe or the generally desirable 15cm~30cm of 13 side length of square steel tube, steel pipe thickness generally may be used
10~24mm is taken, for plain plate 14 along bridge to the generally desirable 2~6m of width, thickness generally can use 10~24mm.Steel shown in Fig. 1
Pipe-steel plate combination web 3, using round steel pipe 12.
As shown in figure 5, in the present embodiment, steel pipe-steel plate combination web 3 and concrete roof 2, concrete floor 3
Engaging portion is edge of a wing type integrated structure, including steel pipe-steel plate combination web 3, top flange steel plate 4 and lower flange steel plate 5.Steel
Pipe-steel plate combination web 3 is welded to connect with top flange steel plate 4 and lower flange steel plate 5 respectively, top flange steel plate 4 and concrete
Top plate 1 is connected by connector 11, and lower flange steel plate 4 is connect with concrete floor 2 by connector 11；Specifically, connector
Using shear connector, it is preferred to use weldering nail connector.
As shown in fig. 6, in the present embodiment, steel pipe-steel plate combination web 3 and fulcrum crossbeam 6 are plug-in type connection type,
Steel pipe -3 both ends of steel plate combination web are inserted into respectively in the fulcrum crossbeam 6 of beam-ends, the plain plate 14 in insertion 6 part of fulcrum crossbeam
Upper setting aperture 15 may be selected in aperture 15 to run through reinforcing bar, and the generally desirable 50~90mm of 15 diameter of aperture, perforation bar diameter can
20~28mm is taken, 15 quantity of aperture is computed really through bar diameter and web insertion depth according to engaging portion force-bearing situation
It is fixed.
As shown in fig. 7, in the present embodiment, diaphragm plate 7 is connected with steel pipe-steel plate combination web 3 by connector 11, it is
Facilitate construction, 14 region of steel pipe-steel plate combination web 3 plain plate may be selected in binding site.Specifically, connector 11 chooses weldering
Follow closely connector.
Steel pipe-steel plate combination web plate composite box girder Specific construction process is as follows in the present embodiment:
Steel pipe-steel plate combination web 3 is formed in factory's welded still pipe and plain plate first；In steel pipe-steel plate combination web 3
Upper lower edge welding top flange steel plate 4, lower flange steel plate 5 and connector 11；Set up left and right steel pipe-steel plate combination web 3；Utilize a left side
Right steel pipe-steel plate combination web 3 builds the formwork for placing of concrete roof 1, concrete floor 2, fulcrum crossbeam 6, diaphragm plate 7；
The pipeline of prestressing tendon 9 in embedded top plate prestressing with bond beam 8 and bottom-plate body；It is laid with concrete roof 1, concrete floor 2, branch
The steel mesh of point crossbeam 6, diaphragm plate 7；Complete pouring for concrete；Tensioning top plate prestressing with bond beam 8, bottom plate prestressing with bond
Beam 9 and external pre-stress bundle 10.
The present invention can reduce bridge self weight, increase bridge by using above-mentioned steel pipe-steel plate combination web combined box beam
Beam span ability avoids cracking in webs, improves prestress application efficiency, caused by reducing temperature effect, concrete shrinkage and creep
Second inner force gives full play to the advantage of two kinds of materials of steel and concrete, with good economic efficiency.
Above-described embodiment is only a specific example of the invention, and the present invention can have more within the scope of the claims
Kind alternative solution.For example, increasing a piece of steel pipe-steel plate combination web in above-described embodiment among box beam forms single box double room case
Beam, or increase multi-disc steel pipe-steel plate combination web and form Single-box multi-chamber box girder；In another example above-described embodiment is applied to multispan
Continuous beam or continuous steel frame bridge it is a certain across forming multispan steel pipe-steel plate combination web plate composite box beam bridge；In another example above-mentioned reality
Applying steel pipe in example-steel plate combination web can be And of Varying Depth, form And of Varying Depth steel pipe-steel plate combination web plate composite box girder.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: including concrete roof, concrete floor,
Tabula structure and steel pipe-steel plate combination web；The steel pipe-steel plate combination web, the concrete roof and the coagulation
Native bottom plate is connected to form box beam main body, and the tabula structure is arranged in both ends fulcrum and the middle part of the box beam main body.
2. steel pipe according to claim 1-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the steel pipe-steel
Plate compound web plate includes the multiple steel pipes and muti-piece plain plate of interval welding.
3. steel pipe according to claim 2-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the steel pipe is adopted
With round steel pipe or square steel tube or round steel pipe and square steel tube mixed-arrangement；The steel pipe use square steel tube when, the square steel tube it is straight
Side or bending angle point and the plain plate weld.
4. steel pipe according to claim 1-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the steel pipe-steel
Plate compound web plate is provided with two panels, forms single box single chamber box beam main body；Or the steel pipe-steel plate combination web be provided with it is more
Piece forms Single-box multi-chamber box beam body.
5. steel pipe according to claim 1-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the steel pipe-steel
Top flange steel plate and lower flange steel plate, the top flange steel plate and lower flange steel plate point is respectively welded in the edge up and down of plate compound web plate
Not Tong Guo connector connect with the concrete roof, the concrete floor.
6. steel pipe according to claim 1-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the tabula knot
Structure includes several diaphragm plates for being arranged among the fulcrum crossbeam and box beam main body of box beam main body both ends setting, the diaphragm plate it is upper
Lower both ends pour integrally with the concrete roof and the concrete floor respectively, the diaphragm plate and the steel pipe-steel
Plate compound web plate is connected by connector；The fulcrum crossbeam is poured and is built up with the concrete roof and the concrete floor
One.
7. steel pipe according to claim 6-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: the steel pipe-steel
Plate compound web plate both ends are inserted into the fulcrum crossbeam, and the steel pipe-steel plate combination web is inserted into the part of the fulcrum crossbeam
Plain plate on aperture is set, for running through reinforcing bar in the aperture.
8. steel pipe according to claim 1-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: further include pre- answer
Power beam, the prestressing tendon include prestressing with bond beam and external pre-stress bundle.
9. steel pipe according to claim 8-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: described pre- in vivo
Stress beam includes prestressing tendon in top plate prestressing with bond beam and bottom-plate body, and the top plate prestressing with bond beam is located at the coagulation
In native top plate, prestressing tendon is located in the concrete floor in the bottom-plate body.
10. steel pipe according to claim 9-steel plate combination web steel reinforced concrete combined box beam, it is characterised in that: described external pre-
The both ends of stress beam are anchored in the fulcrum crossbeam at box beam main body both ends, and the both ends of the external pre-stress bundle are close
The fulcrum crossbeam is bent up, and the steering block by the diaphragm plate or additionally arranged realizes the steering of the external pre-stress bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485177.8A CN110067185A (en) | 2019-06-05 | 2019-06-05 | A kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485177.8A CN110067185A (en) | 2019-06-05 | 2019-06-05 | A kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam |
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| CN110067185A true CN110067185A (en) | 2019-07-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910485177.8A Pending CN110067185A (en) | 2019-06-05 | 2019-06-05 | A kind of steel pipe-steel plate combination web steel reinforced concrete combined box beam |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644346A (en) * | 2019-09-30 | 2020-01-03 | 中铁二院工程集团有限责任公司 | Steel pipe-steel plate combined steel web plate |
| CN111236075A (en) * | 2020-01-21 | 2020-06-05 | 滁州职业技术学院 | External prestressed reinforcement bundle mounting structure of concrete box bridge |
| CN111749137A (en) * | 2020-07-14 | 2020-10-09 | 郑州大学 | Assembled section beam jointed by plate girders and assembling method thereof |
| CN113202010A (en) * | 2021-05-07 | 2021-08-03 | 中交一公局集团有限公司 | Prestressed concrete cast-in-place box girder structure and construction method thereof |
| CN113338152A (en) * | 2021-06-22 | 2021-09-03 | 广西北投公路建设投资集团有限公司 | Steel-concrete composite web and construction method thereof |
| CN114922043A (en) * | 2022-05-27 | 2022-08-19 | 武汉大学 | Box girder and box girder bridge |
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| CN205421716U (en) * | 2016-04-08 | 2016-08-03 | 江苏建筑职业技术学院 | Steel pipe concrete and compound web H -beam of steel sheet |
| CN205577258U (en) * | 2016-04-08 | 2016-09-14 | 江苏建筑职业技术学院 | Polygon edge of a wing steel reinforced concrete complex carrier bar that excels in |
| CN109137757A (en) * | 2018-11-07 | 2019-01-04 | 深圳市市政设计研究院有限公司 | A kind of anti-buckling structure of large span box girder with corrugated steel webs and construction method |
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| CN203411890U (en) * | 2013-08-06 | 2014-01-29 | 同济大学 | Twisted steel web combined box girder with full internal prestress |
| CN203782542U (en) * | 2014-03-10 | 2014-08-20 | 中交第三公路工程局有限公司 | Prestressed concrete box girder adopting corrugated steel webs |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644346A (en) * | 2019-09-30 | 2020-01-03 | 中铁二院工程集团有限责任公司 | Steel pipe-steel plate combined steel web plate |
| CN111236075A (en) * | 2020-01-21 | 2020-06-05 | 滁州职业技术学院 | External prestressed reinforcement bundle mounting structure of concrete box bridge |
| CN111236075B (en) * | 2020-01-21 | 2021-07-02 | 滁州职业技术学院 | External prestressed reinforcement bundle mounting structure of concrete box bridge |
| CN111749137A (en) * | 2020-07-14 | 2020-10-09 | 郑州大学 | Assembled section beam jointed by plate girders and assembling method thereof |
| CN113202010A (en) * | 2021-05-07 | 2021-08-03 | 中交一公局集团有限公司 | Prestressed concrete cast-in-place box girder structure and construction method thereof |
| CN113338152A (en) * | 2021-06-22 | 2021-09-03 | 广西北投公路建设投资集团有限公司 | Steel-concrete composite web and construction method thereof |
| CN114922043A (en) * | 2022-05-27 | 2022-08-19 | 武汉大学 | Box girder and box girder bridge |
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