CN201778436U - Hybrid polycarbonate (PC) girder with steel truss webs - Google Patents
Hybrid polycarbonate (PC) girder with steel truss webs Download PDFInfo
- Publication number
- CN201778436U CN201778436U CN2010202997515U CN201020299751U CN201778436U CN 201778436 U CN201778436 U CN 201778436U CN 2010202997515 U CN2010202997515 U CN 2010202997515U CN 201020299751 U CN201020299751 U CN 201020299751U CN 201778436 U CN201778436 U CN 201778436U
- Authority
- CN
- China
- Prior art keywords
- steel
- steel plate
- purlin
- web
- plate
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model discloses a hybrid polycarbonate (PC) girder with steel truss webs, which comprises a reinforced concrete top plate and a reinforced concrete bottom plate, wherein the reinforced concrete top plate and/or the reinforced concrete bottom plate are/is provided with a post-tensioned prestressed reinforcement; meanwhile, The utility model also comprises at least two rows of bottom steel plates which are discontinuously anchored on the reinforced concrete bottom plate along the length direction of the hybrid PC girder, one end of a steel truss web is fixedly connected with the bottom steel plate, and the other end of the steel truss web is fixedly connected with a top steel plate; and at least two rows of the top steel plates are discontinuously arranged on the reinforced concrete top plate along the length direction of the hybrid PC girder, and each row of steel truss webs are fixedly connected with the bottom steel plates and the top steel plates in a combined form of a plurality of through V shapes. Because of fully exerting the advantages and performances of reinforced concretes and steel bars, the hybrid PC girder of the utility model has the advantages of lighter self weight, large web rigidity, simple construction process, beautiful appearance, remarkable economic benefits, wide application in bridge construction, and capability of ultimately saving steel bars and saving footboard-template supports.
Description
Technical field
The utility model relates to a kind of steel abdomen PC beam, is specifically related to a kind of steel purlin abdomen combination PC beam.
Background technology
Known prestressed steel reinforced concrete beam is that the PC beam is fit to the less occasion of span, and when span is excessive, the load that concrete and prestressed reinforcement bear will largely come from the deadweight of its steel concrete.Trussed-beam steel beam since intensity with from the advantage of anharmonic ratio, the occasion that suitable span is bigger.But because the deficiency of self material property comprise non-refractory, when usually surpassing 600 ℃, almost can ignore again by the intensity of steel for girder steel; Perishable, corrosion can cause product strength to reduce, and net sectional area descends, and during construction and build up the back to be used for antiseptic cost every year higher, has all limited the scope of application of clean steel beam.
For eliminating the harmful effect that this problem is brought, in the prior art, the relevant report of existing steel truss and reinforced concrete composite structure, the patent No. is CN200620106053.2, the utility model patent that disclose a kind of steel truss open day on August 1st, 2007 is provided with lower chord, is associated with " V " shape web member on the lower chord, " V " shape web member upper end is associated with the shearing resistance part, and shearing resistance part side offers the perforation that is used to connect the tool-type upper chord.This utility model is fit to do the lattice of the cast-in-place flooring of steel bar concrete.
The patent No. is CN200820104016.7, and open day on November 12nd, 2008, disclosed utility model patent disclosed " steel truss composite coupling beams ", and it is to be made of montant, edge bar, brace.Wherein, montant and edge bar are formed rectangular configuration, and brace is cross-shaped, is fixed between upper limb bar and the lower edge bar, and the coupling beam two ends are imbedded in the shear wall, and embedment length is 3/10ths to 4/10ths of a coupling beam span.The ductility of the steel truss composite coupling beams of the described band skewed crossing of this utility model brace, equivalent viscous he, average energy dissipation factor β are than the steel truss composite coupling beams with the skewed crossing brace is not big.
The patent No. is CN200820104109.X, and open day on December 3rd, 2008, disclosed utility model patent disclosed " steel truss steel framed concrete beam ", and it is to be made of montant, edge bar, brace for its steel truss reinforcing bar.Wherein, montant and edge bar are formed rectangular configuration, and brace is oblique to be fixed between upper limb bar, lower edge bar and the montant.Adopt the described steel truss steel framed concrete beam of this utility model, can be according to beam section Height Adjustment steel truss height.
The result combinations that above-mentioned patent all is based on the support of Steel Space Truss and top board, base plate steel concrete forms the case beam, though solved the deficiency of steel truss girder and common prestressed steel reinforced concrete beam, the bar but top board and base plate are still had chance with, also has side plate, and top board and base plate steel concrete still need to press at least constructional reinforcement, still there is big steel waste problem in this with regard to causing, and the deadweight of side plate concrete is same big.
In view of this, study a kind of save greatly steel, satisfied normal use again, the steel abdomen PC beam of easy construction has become the focus of paying close attention in the industry.
The utility model content
At the deficiencies in the prior art, one of the purpose of this utility model is intended to provide a kind of steel concrete and steel advantage and performance separately given full play to, and is big from heavy and light, web rigidity, farthest avoids the steel purlin abdomen combination PC beam of steel waste.
For achieving the above object, one of the utility model adopts following technical scheme:
A kind of steel purlin abdomen combination PC beam; Comprise steel concrete top board and reinforced concrete floor, steel concrete top board and/or reinforced concrete floor are established post-tensioned prestressed reinforcement, also comprise along the end steel plate that is anchored in reinforced concrete floor of the discontinuous layout of beam length direction at least 2 row, steel purlin web one end is fixed in steel plate of the described end, the affixed top of other end steel plate, described top steel plate forms the discontinuous layout of at least 2 row along the beam length direction and is anchored in the steel concrete top board, and described each row steel purlin web and end steel plate and top steel plate are fixed in along a plurality of " V " font combination shape that is perforation on the facade of beam length direction.
Preferred as such scheme, described wherein 1 row end steel plate, steel purlin web and top steel plate 1 are listed as end steel plate, steel purlin web and top steel plate and lay respectively at beam floor length direction perpendicular bisector both sides with other.
Preferred as such scheme, described end steel plate and the top steel plate of respectively being listed as is symmetrical in beam base plate center line along the beam length direction and arranges that in the cross section perpendicular to the beam length direction, each row steel purlin web is with respect to the perpendicular bisector symmetric arrangement of beam
Preferred as such scheme, the affixed steel purlin web of described and every block of end steel plate is 2, and is a kind of in shaped steel, square steel pipe, round steel pipe, the concrete filled steel tube.
Preferred as such scheme, the affixed steel purlin web of described and every block of end steel plate is greater than 2, wherein 2 steel web other ends are fixed in along the homonymy of beam length direction back plate center line, and all the other steel web other ends are fixed in along the opposite side of beam length direction back plate center line.
Preferred as such scheme, anchoring place of steel plate of the described end and reinforced concrete floor, end steel plate is at the fixing shear connector of another side that is fixed in outside the web of steel purlin.
Preferred as such scheme, anchoring place of described top steel plate and steel concrete top board, the top steel plate is at the fixing shear connector of another side that is fixed in outside the web of steel purlin.
The steel purlin abdomen combination PC beam that the utility model is set forth, its beneficial effect is: steel---mix combined beam structure by adopting steel purlin web, supreme lower edge bar, replace steel concrete web, steel plate or corrugated sheet steel longitudinally, reach the purpose that alleviates deadweight and significantly save steel, improve the prestressing force transmission efficiency, web steel rigidity is big, can effectively prevent concrete floor and roof break, the riser falsework is saved in easy construction, has the characteristics of good looking appearance, remarkable economic efficiency is arranged, be with a wide range of applications in the bridge construction field.
Description of drawings
Fig. 1 is the facade structures schematic diagram of steel of the present utility model purlin abdomen combination PC beam along the beam length direction;
Fig. 2 is a steel of the present utility model purlin abdomen combination PC beam cross-sectional structure schematic diagram, and top board is established post-tensioned prestressed reinforcement;
Fig. 3 establishes the cross-sectional structure schematic diagram of post-tensioned prestressed reinforcement for steel of the present utility model purlin abdomen combination PC beam base plate.
The specific embodiment
Below, the 1-3 and the specific embodiment are described further of the present utility model in conjunction with the accompanying drawings, so that clearerly understand the utility model technological thought required for protection.Be interpreted as, relevant drawings and explanation are not the restriction to the product protection scope.
As Figure 1-3, a kind of steel of the present utility model purlin abdomen combination PC beam, comprise steel concrete top board 7 and reinforced concrete floor 8, steel concrete top board 7 and/or reinforced concrete floor 8 are established post-tensioned prestressed reinforcement 5, also comprise along the end steel plate 3 that is anchored in reinforced concrete floor 8 of the discontinuous layout of beam length direction at least 2 row, steel purlin web 1 one ends are fixed in steel plate of the described end 3, the affixed top of other end steel plate 2, described top steel plate 2 forms the discontinuous layout of at least 2 row along the beam length direction and is anchored in steel concrete top board 7, and described each row steel purlin web 1 is fixed in along a plurality of " V " font combination shape that is perforation on the facade of beam length direction with end steel plate 3 and top steel plate 2.Like this, with the steel concrete top board 7 that comprises post-tensioned prestressed reinforcement 5 or reinforced concrete floor 8 as tension or pressure-containing parts, cut with steel purlin web 1, constitute whole composite beam, end steel plate 3 and top steel plate 2 adopt discontinuous and point-like is arranged, has saved edge bar and montant, steel are saved significantly, only, form steel with end steel plate 3 and top steel plate 2 anchor connection steel concrete---mix combined beam structure, and keep beam overall space rigidity and stability.
Described wherein 1 row end steel plate 3, steel purlin web 1 and top steel plate 2 and other 1 row end steel plate 3, steel purlin web 1 and top steel plate 2 lay respectively at beam floor length direction perpendicular bisector both sides.Described end steel plate 3 and the top steel plate 2 of respectively being listed as is symmetrical in beam base plate center line along the beam length direction and arranges that in the cross section perpendicular to the beam length direction, each row steel purlin web 1 is with respect to the perpendicular bisector symmetric arrangement of beam.Such symmetric arrangement makes whole beam stress even, and the load of each several part material and its performance obtain the maximization coupling.
The quantity of the steel purlin web 1 that described and every block of end steel plate 3 is affixed is 2, and is a kind of in shaped steel, square steel pipe, round steel pipe, the concrete filled steel tube.
The quantity of the steel purlin web 1 that described and every block of end steel plate 3 is affixed is for for greater than 2, wherein 2 steel purlin web other ends are fixed in along the homonymy of beam length direction back plate center line, and all the other steel web other ends are fixed in along the opposite side of beam length direction back plate center line.This structure is passed through along the intersection of steel purlin, the both sides web of beam length direction, and its space rigidity is further promoted, and helps further increasing beam integral rigidity, particularly torsional rigidity.
Anchoring place of steel plate of the described end 3 and reinforced concrete floor 8, end steel plate 3 is at the fixing shear connector 4 of another side that is fixed in outside the steel purlin web 1.Anchoring place of described top steel plate 2 and steel concrete top board 7, top steel plate 2 is at the fixing shear connector 4 of another side that is fixed in outside the steel purlin web 1.End steel plate 3 and top steel plate 2 set shear connectors 4 play steel purlin web 1 and further form whole effects with steel concrete top board 7 or reinforced concrete floor 8 are affixed, particularly play stable load transfer and shearing resistance effect.The way of shear connector 4 can be for being fixed in another side welding outside the steel purlin web 1 or alternate manner fixedly shearing bolt or shearing resistance nail, the plain bars 6 of described shear connector 4 all right affixed base plates and top board at top steel plate 2 and end steel plate 3.
Job practices of the present utility model comprises the steps:
1), by designing requirement processing end steel plate 3, top steel plate 2 and steel purlin web 1;
According to designing requirement, be ready to the scantling and the quantity of Construction of Steel Structure earlier.
2), become " Λ " glyph group component with steel purlin web 1 and end steel plate 3, top steel plate 2 are affixed, at top board, base plate plane of arrangement bed die respectively;
Be to accelerate practice of construction speed, become " Λ " glyph group component with steel purlin web 1 and end steel plate 3, top steel plate 2 are affixed, make prefabricated component, and then carry out top board and the base plate formwork carries out follow-up construction.Usually need respectively 1 of end steel plate 3 and top steel plate 2,2 of steel purlin webs.
3), the whole steel frame of assembly unit " Λ " the affixed one-tenth of glyph group component, arrange plain bars 6 and prestressed reinforcement 5, water the underplate concrete layer then, water the concrete roof layer again;
The benefit of assembly unit " Λ " glyph group component is, when several " Λ " glyph group components are carried out the whole steel frame of continuous " M " font of affixed one-tenth, steel purlin web 1 is all finished on the base plate template with the affixed work of end steel plate 3, avoided making somebody a mere figurehead the difficulty of handling, particularly affixed being generally when welding, downhand welding is more much smaller than the difficulty of construction of overhead welding, the also easier assurance of quality.
4), concrete strength reaches design strength post tensioning prestressing force, formation steel purlin abdomen combination PC beam.
After concrete strength reaches design strength, carry out the stretch-draw of post-tensioned prestressed reinforcement 5, reach the prestress value or the deformation values of design, form steel purlin abdomen combination PC beam.
In described step 2) in, can be increased in end steel plate 3, top steel plate 2 not with affixed 1 in addition of steel purlin web 1, fixedly shear connector 4.The plain bars 6 of shear connector 4 all right affixed base plates and top board is with the holistic resistant behavior and the integral rigidity of better increase beam.
Fig. 2 and Fig. 3 are respectively beam when being subjected to hogging moment and when being subjected to positive bending moment, the different layings at beam upper limb and lower edge of post-tensioned prestressed reinforcement 5.
Certainly, fixedly connected various conventional fixed forms such as to adopt welding, riveted joint, bolt between end steel plate, top steel plate and steel purlin web and the shear connector.
Adopt the utility model of such scheme, give full play to steel concrete and steel advantage and performance separately, conduct oneself with dignity lighter, web rigidity is big, steel have farthest been saved, work progress is easy, saves the riser falsework, good looking appearance, remarkable economic efficiency is arranged, be widely used in the bridge construction field.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of the utility model claim all according to technical scheme described above and design.
Claims (7)
1. a steel purlin abdomen makes up the PC beam, comprise steel concrete top board and reinforced concrete floor, steel concrete top board and/or reinforced concrete floor are established post-tensioned prestressed reinforcement, it is characterized in that, also comprise along the end steel plate that is anchored in reinforced concrete floor of the discontinuous layout of beam length direction at least 2 row, steel purlin web one end is fixed in steel plate of the described end, the affixed top of other end steel plate, described top steel plate forms the discontinuous layout of at least 2 row along the beam length direction and is anchored in the steel concrete top board, and described each row steel purlin web and end steel plate and top steel plate are fixed in along a plurality of " V " font combination shape that is perforation on the facade of beam length direction.
2. steel according to claim 1 purlin abdomen combination PC beam is characterized in that, described wherein 1 row end steel plate, steel purlin web and top steel plate and other 1 row end steel plate, steel purlin web and top steel plate lay respectively at beam floor length direction perpendicular bisector both sides.
3. steel according to claim 1 purlin abdomen combination PC beam, it is characterized in that, described end steel plate and the top steel plate of respectively being listed as is symmetrical in beam base plate center line along the beam length direction and arranges that in the cross section perpendicular to the beam length direction, each row steel purlin web is with respect to the perpendicular bisector symmetric arrangement of beam.
4. steel according to claim 1 purlin abdomen combination PC beam is characterized in that, the affixed steel purlin web of described and every block of end steel plate is 2, and is a kind of in shaped steel, square steel pipe, round steel pipe, the concrete filled steel tube.
5. steel according to claim 1 purlin abdomen combination PC beam, it is characterized in that, the affixed steel purlin web of described and every block of end steel plate is greater than 2, wherein 2 steel web other ends are fixed in along the homonymy of beam length direction back plate center line, and all the other steel web other ends are fixed in along the opposite side of beam length direction back plate center line.
6. steel according to claim 1 purlin abdomen combination PC beam is characterized in that, anchoring place of steel plate of the described end and reinforced concrete floor, and end steel plate is at the fixing shear connector of another side that is fixed in outside the web of steel purlin.
7. steel according to claim 1 purlin abdomen combination PC beam is characterized in that, anchoring place of described top steel plate and steel concrete top board, and the top steel plate is at the fixing shear connector of another side that is fixed in outside the web of steel purlin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202997515U CN201778436U (en) | 2010-08-19 | 2010-08-19 | Hybrid polycarbonate (PC) girder with steel truss webs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202997515U CN201778436U (en) | 2010-08-19 | 2010-08-19 | Hybrid polycarbonate (PC) girder with steel truss webs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778436U true CN201778436U (en) | 2011-03-30 |
Family
ID=43791650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202997515U Expired - Lifetime CN201778436U (en) | 2010-08-19 | 2010-08-19 | Hybrid polycarbonate (PC) girder with steel truss webs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778436U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936054A (en) * | 2010-08-19 | 2011-01-05 | 李勇 | Steel truss web combined PC beam and construction method thereof |
| CN102409602A (en) * | 2011-12-02 | 2012-04-11 | 四川西南交大土木工程设计有限公司 | Concrete structure box slab truss composite beam |
| CN102561508A (en) * | 2012-02-09 | 2012-07-11 | 清华大学 | Steel tube concrete poling type truss mixed structure for high-rise and super high-rise buildings |
| CN111622348A (en) * | 2020-06-09 | 2020-09-04 | 江苏海洋大学 | Prestressed self-resetting concrete truss structure and assembling method |
-
2010
- 2010-08-19 CN CN2010202997515U patent/CN201778436U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936054A (en) * | 2010-08-19 | 2011-01-05 | 李勇 | Steel truss web combined PC beam and construction method thereof |
| CN101936054B (en) * | 2010-08-19 | 2012-07-25 | 李勇 | Steel truss web combined PC beam and construction method thereof |
| CN102409602A (en) * | 2011-12-02 | 2012-04-11 | 四川西南交大土木工程设计有限公司 | Concrete structure box slab truss composite beam |
| CN102409602B (en) * | 2011-12-02 | 2013-12-04 | 四川西南交大土木工程设计有限公司 | Concrete structure box, plate and joist combined beam |
| CN102561508A (en) * | 2012-02-09 | 2012-07-11 | 清华大学 | Steel tube concrete poling type truss mixed structure for high-rise and super high-rise buildings |
| CN102561508B (en) * | 2012-02-09 | 2014-09-24 | 清华大学 | Hybrid structure of steel tube concrete limb truss in high-rise and super high-rise buildings |
| CN111622348A (en) * | 2020-06-09 | 2020-09-04 | 江苏海洋大学 | Prestressed self-resetting concrete truss structure and assembling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101936054B (en) | Steel truss web combined PC beam and construction method thereof | |
| CN103643753B (en) | A kind of waveform welding reinforced type steel plate combined concrete shear wall | |
| CN113062197B (en) | Assembly type stiffening large cantilever corrugated steel web PC combined box girder and construction method thereof | |
| CN110067185B (en) | Steel pipe-steel plate combined web steel-concrete combined box girder | |
| CN106522552B (en) | A kind of assembled plate-column structure floor and its division methods and floor panels component | |
| CN201778436U (en) | Hybrid polycarbonate (PC) girder with steel truss webs | |
| CN103711255B (en) | Truss concrete superposed beam | |
| CN202990197U (en) | Lap joint rib type prestress double-direction composite slab | |
| CN210596977U (en) | Steel pipe-steel plate combined web steel-concrete combined box girder | |
| CN202990196U (en) | Partially prestressed prefabricated thin plate | |
| CN208884804U (en) | A kind of superimposed sheet and its mounting structure | |
| KR101024991B1 (en) | Hollow slab deck plate structure and construction method of hollow slab deck plate | |
| CN201786045U (en) | House structure with combined steel beam and pretensioning method prestress laminated beam | |
| CN114482400A (en) | Superposed beam connected with prefabricated vertical component | |
| CN101294431B (en) | Construction method for steel-concrete composite truss floor | |
| CN207419848U (en) | A kind of corrugated sheet steel-concrete combined box beam | |
| CN2536686Y (en) | Floor template combined components | |
| CN2661809Y (en) | nternal force adjustable prestressed steel-concrete combination beam | |
| CN216893067U (en) | Assembled composite floor system | |
| CN217027742U (en) | Superposed beam connected with prefabricated vertical component | |
| CN201411626Y (en) | A pre-bent composite beam with corrugated steel web | |
| CN212688701U (en) | Fulcrum connection structure in steel-concrete combined continuous beam | |
| CN209891062U (en) | Ultra High Performance Concrete Ribs with Ribbed Bottom Steel Plates for Bridge Decks | |
| CN115354782A (en) | Assembled prestressed corrugated steel plate composite shear wall and construction method thereof | |
| CN201254689Y (en) | Steel web structure for making bridge structure box beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110330 Effective date of abandoning: 20120725 |