CN205604581U - Large -span shaped steel prestressed concrete combination beam - Google Patents
Large -span shaped steel prestressed concrete combination beam Download PDFInfo
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- CN205604581U CN205604581U CN201620420586.1U CN201620420586U CN205604581U CN 205604581 U CN205604581 U CN 205604581U CN 201620420586 U CN201620420586 U CN 201620420586U CN 205604581 U CN205604581 U CN 205604581U
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Abstract
The utility model discloses a large -span shaped steel prestressed concrete combination beam, it includes: shaped steel roof beam, shaped steel roof beam are the I shaped steel roof beam, and the I shaped steel roof beam includes first end of shaped steel roof beam and shaped steel roof beam second end, outside concrete layer, outside concrete layer cladding is outside at the shaped steel roof beam, is first end of concrete and concrete second end respectively with the first end of shaped steel roof beam, the concrete end that the second end corresponds, concrete reinforcement, concrete reinforcement bury underground externally in the concrete layer, the bellows, the quantity of bellows is two, in the pre -buried externally concrete layer, is located the both sides of the web of I shaped steel roof beam respectively, prestressing tendons, prestressing tendons sets up in the bellows, inside concrete, the space of inside concrete placement between bellows and prestressing tendons. The utility model discloses large -span shaped steel prestressed concrete combination beam has shaped steel concrete structure and prestressing force concrete structure's advantage concurrently, has improved the cracking resistance and the anti deformability of structure.
Description
Technical field
This utility model relates to a kind of large span shaped steel prestressed concrete combination beam.
Background technology
Along with the fast development of China's economy, the scale of public building is increasing, and function is more and more exquisite, more and more higher to the aesthetic of building, and the design of various unconventional structures is more and more, brings great difficulty to structure construction.In large span component, generally use prestressed girder or section steel beam form.
Prestressed concrete beam is to be previously applied beam to make it produce the power of hogging moment at span centre, with partial offset beam sagging moment in use.Advantage is to avoid concrete structure crack to occur too early, make full use of high strength cast iron and strong concrete, before structural elements is by load action, makes it produce precompression and reduce or offset the concrete pulling force caused by load, thus reduce the tension of structural elements.
The steel reinforced concrete structure of section steel beam is a kind of combinative structure of shaped steel reinforced concrete enveloped, which overcome the feature that steel construction is stable, fire protecting performance is poor and reinforced concrete structure cross section is big, ductility is poor, it is a kind of perfect adaptation of steel and armored concrete, is widely applied in engineering.Yet with the reduction of its sectional dimension of members, in the case of some are higher to rigidity of structure requirement, crack and Deformation control are often difficult to meet requirement.
Utility model content
The purpose of this utility model is to provide a kind of large span shaped steel prestressed concrete combination beam.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of large span shaped steel prestressed concrete combination beam, comprising:
Section steel beam, described section steel beam is i-shape steel beam, and i-shape steel beam includes section steel beam the first termination and section steel beam the second termination；
Outer concrete layer, described outer concrete layer is coated on outside described section steel beam, and the concrete termination corresponding with the first termination of section steel beam, the second termination is respectively concrete the first termination and concrete the second termination；
Concrete reinforcement, described concrete reinforcement is embedded in described outer concrete layer；
Corrugated tube, the quantity of described corrugated tube is two, is embedded in described outer concrete layer, lays respectively at the both sides of the web of i-shape steel beam；
Presstressed reinforcing steel, described presstressed reinforcing steel is arranged in described corrugated tube；
Inner concrete, described inner concrete is cast in the space between corrugated tube and presstressed reinforcing steel.
This utility model large span as above shaped steel prestressed concrete combination beam, further, the quantity of the presstressed reinforcing steel arranged in every corrugated tube is 10～20.
This utility model large span as above shaped steel prestressed concrete combination beam, further, the quantity of the presstressed reinforcing steel arranged in every corrugated tube is 15.
This utility model large span as above shaped steel prestressed concrete combination beam, further, the two ends of described presstressed reinforcing steel are anchored on concrete the first termination and concrete the second termination by sheet clamping type group respectively；On sheet clamping type group anchor, the quantity in hole is consistent with the presstressed reinforcing steel quantity arranged in every corrugated tube.
This utility model large span as above shaped steel prestressed concrete combination beam, further, described section steel beam is sequentially connected with by least two section steel beam segmentation and constitutes, by being welded to connect between adjacent section steel beam segmentation.
This utility model large span as above shaped steel prestressed concrete combination beam, further, described section steel beam includes three section steel beam segmentations, the respectively first section steel beam segmentation, Second-Type girder steel segmentation and the 3rd section steel beam segmentation, and section steel beam segmentation head and the tail are sequentially connected with composition section steel beam.
This utility model large span as above shaped steel prestressed concrete combination beam, further, described i-shape steel beam includes top board, base plate and the web being connected between top board and base plate；Described concrete reinforcement includes spraining, constructing muscle and drag hook；Described spraining moves towards layout according to consistent with section steel beam length direction；Spraining and arrange four row altogether, each two row in web both sides, two row of web homonymy are sprained and are connected by drag hook drawknot；Described structure muscle will be for spraining connection in column.
This utility model large span as above shaped steel prestressed concrete combination beam, further, two ends top board and the base plate with i-shape steel beam respectively near the structure muscle of web is welded to connect.
The beneficial effects of the utility model are:
This utility model large span shaped steel prestressed concrete combination beam is Shi Hanzhang in steel reinforced concrete structure, thus improves cracking resistance and the non-deformability of structure.As a kind of new composite structure form having steel reinforced concrete structure and prestressed reinforced concrete construction concurrently, it is possible to apply in large span, heavy duty and sectional dimension of members to be had strict demand and the high engineering field of shockproof requirements.
Accompanying drawing explanation
By the detailed description made in conjunction with the following drawings, of the present utility model above-mentioned and/or other aspects and advantage will be apparent from and be easier to understand, and these accompanying drawings the most schematically, are not limiting as this utility model, wherein:
Fig. 1 is the large span shaped steel prestressed concrete combination beam schematic diagram of a kind of embodiment；
Fig. 2 is the schematic cross-section of the large span shaped steel prestressed concrete combination beam of a kind of embodiment；
Fig. 3 is the schematic cross-section of the large span shaped steel prestressed concrete combination beam of another kind of embodiment；
Fig. 4 is the close-up schematic view of Fig. 3.
In accompanying drawing, the list of parts representated by each label is as follows:
1, section steel beam, 11, top board, 12, web, 13, base plate；
2, outer concrete layer；
3, concrete reinforcement, 31, the main muscle in bottom, 32, the main muscle in top, 33, structure muscle, 34, drag hook, 35, sprain, 36, sprain；
4, corrugated tube；
5, presstressed reinforcing steel；
6, sheet clamping type group anchor.
Detailed description of the invention
Hereinafter, the embodiment of large span shaped steel prestressed concrete combination beam of the present utility model is described with reference to the accompanying drawings.
The embodiment recorded at this is specific detailed description of the invention of the present utility model, is used for illustrating design of the present utility model, is all explanatory and exemplary, should not be construed as this utility model embodiment and the restriction of this utility model scope.In addition to the embodiment recorded at this, those skilled in the art can also use other technical scheme obvious based on the application claims and description disclosure of that, and these technical schemes include using the technical scheme making any obvious substitutions and modifications to the embodiment recorded at this.
The accompanying drawing of this specification is schematic diagram, aids in illustrating design of the present utility model, it is schematically indicated the shape of each several part and mutual relation thereof.Note that the structure of each parts for the ease of clearly showing this utility model embodiment, do not draw according to identical ratio between each accompanying drawing.Identical reference marker is used for representing identical part.
Fig. 1 and Fig. 2 illustrates the large span shaped steel prestressed concrete combination beam of a kind of embodiment of this utility model, comprising:
Section steel beam 1, described section steel beam is i-shape steel beam, and i-shape steel beam includes section steel beam the first termination and section steel beam the second termination；
Outer concrete layer 2, it is outside that described outer concrete layer is coated on described section steel beam 1, and the concrete termination corresponding with the first termination of section steel beam 1, the second termination is respectively concrete the first termination and concrete the second termination；
Concrete reinforcement 3, described concrete reinforcement 3 is embedded in described outer concrete layer 2；
Corrugated tube 4, the quantity of described corrugated tube 4 is two, is embedded in described outer concrete layer 2, lays respectively at the both sides of the web 12 of i-shape steel beam 1；
Presstressed reinforcing steel 5, described presstressed reinforcing steel 5 is arranged in described corrugated tube 4；In specific implementation process, the quantity of presstressed reinforcing steel tension size as required determines, such as the quantity of the presstressed reinforcing steel arranged in every corrugated tube is 10～20, more preferably arranges 15.In one embodiment, described presstressed reinforcing steel is fptk1860 level φ 15.2mm underrelaxation steel strand wires.
Inner concrete, described inner concrete is cast in the space between corrugated tube 4 and presstressed reinforcing steel 5.
In the large span shaped steel prestressed concrete combination beam of this utility model above-described embodiment, the two ends of described presstressed reinforcing steel are fixed on concrete the first termination and concrete the second termination by sheet clamping type group anchor 6 respectively；On sheet clamping type group anchor, the quantity in hole is consistent with the presstressed reinforcing steel quantity arranged in every corrugated tube.
In the large span shaped steel prestressed concrete combination beam of this utility model above-described embodiment, described section steel beam can be overall structure, this structure workshop is prefabricated complete after, the most directly lift.But if subjected to the situation that construction site restriction, crane gear restriction etc. can not realize integral hoisting has then been difficult to construction, improvement further to above-described embodiment, section steel beam is sequentially connected with by least two section steel beam segmentation and constitutes, by being welded to connect between adjacent section steel beam segmentation.Such as, described section steel beam includes three section steel beam segmentations, the respectively first section steel beam segmentation, Second-Type girder steel segmentation and the 3rd section steel beam segmentation, and section steel beam segmentation head and the tail are sequentially connected with composition section steel beam.
In the large span shaped steel prestressed concrete combination beam of this utility model above-described embodiment, as shown in Figure 3 and Figure 4, described i-shape steel beam includes top board 11, base plate 13 and the web 12 being connected between top board 11 and base plate 13；Described concrete reinforcement includes sprain 35,36, structure muscle 33 and drag hook 34；Described spraining 36 is arranged according to consistent with section steel beam 1 length direction trend；Spraining and 35 arrange four row altogether, each two row in web 12 both sides, two row of web homonymy are sprained and 35 are connected by drag hook 34 drawknot；Described structure muscle 33 will be for spraining 35 connections in column.Two ends top board 11 and base plate 13 with i-shape steel beam respectively near the structure muscle 33 of web is welded to connect.Fig. 3 also show and be positioned at the main muscle in the top above top board 32 and be positioned at the main muscle in the bottom below base plate 31.
The drag hook of above-described embodiment is separately positioned on the both sides of section steel beam web, be only arranged through web run through type drag hook compared with, it is possible to the number of openings of reduction type steel beam web plate, it is ensured that the bulk strength of section steel beam.
This utility model large span shaped steel prestressed concrete combination beam is Shi Hanzhang in steel reinforced concrete structure, thus improves cracking resistance and the non-deformability of structure.As a kind of new composite structure form having steel reinforced concrete structure and prestressed reinforced concrete construction concurrently, it is possible to apply in large span, heavy duty and sectional dimension of members to be had strict demand and the high engineering field of shockproof requirements.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed with further feature combination, those skilled in the art also can carry out between each technical characteristic according to the purpose of invention other combine, be as the criterion realizing the purpose of this utility model.
Claims (9)
1. a large span shaped steel prestressed concrete combination beam, it is characterised in that including:
Section steel beam, described section steel beam is i-shape steel beam, and i-shape steel beam includes section steel beam the first termination and section steel beam the second termination；
Outer concrete layer, described outer concrete layer is coated on outside described section steel beam, and the concrete termination corresponding with the first termination of section steel beam, the second termination is respectively concrete the first termination and concrete the second termination；
Concrete reinforcement, described concrete reinforcement is embedded in described outer concrete layer；
Corrugated tube, the quantity of described corrugated tube is two, is embedded in described outer concrete layer, lays respectively at the both sides of the web of i-shape steel beam；
Presstressed reinforcing steel, described presstressed reinforcing steel is arranged in described corrugated tube；
Inner concrete, described inner concrete is cast in the space between corrugated tube and presstressed reinforcing steel.
Large span shaped steel prestressed concrete combination beam the most according to claim 1, it is characterised in that the quantity of the presstressed reinforcing steel arranged in every corrugated tube is 10～20.
Large span shaped steel prestressed concrete combination beam the most according to claim 2, it is characterised in that the quantity of the presstressed reinforcing steel arranged in every corrugated tube is 15.
4. according to the large span shaped steel prestressed concrete combination beam described in any one of claim 1-3, it is characterised in that described section steel beam is sequentially connected with by least two section steel beam segmentation and constitutes, by being welded to connect between adjacent section steel beam segmentation.
5. according to the large span shaped steel prestressed concrete combination beam described in any one of claim 1-3, it is characterised in that the two ends of described presstressed reinforcing steel are anchored on concrete the first termination and concrete the second termination by sheet clamping type group respectively；On sheet clamping type group anchor, the quantity in hole is consistent with the presstressed reinforcing steel quantity arranged in every corrugated tube.
Large span shaped steel prestressed concrete combination beam the most according to claim 5, it is characterised in that described section steel beam is sequentially connected with by least two section steel beam segmentation and constitutes, by being welded to connect between adjacent section steel beam segmentation.
Large span shaped steel prestressed concrete combination beam the most according to claim 6, it is characterized in that, described section steel beam includes three section steel beam segmentations, the respectively first section steel beam segmentation, Second-Type girder steel segmentation and the 3rd section steel beam segmentation, and section steel beam segmentation head and the tail are sequentially connected with composition section steel beam.
Large span shaped steel prestressed concrete combination beam the most according to claim 1, it is characterised in that described i-shape steel beam includes top board, base plate and the web being connected between top board and base plate；Described concrete reinforcement includes spraining, constructing muscle and drag hook；Described spraining moves towards layout according to consistent with section steel beam length direction；Spraining and arrange four row altogether, each two row in web both sides, two row of web homonymy are sprained and are connected by drag hook drawknot；Described structure muscle will be for spraining connection in column.
Large span shaped steel prestressed concrete combination beam the most according to claim 8, it is characterised in that two ends top board and the base plate with i-shape steel beam respectively near the structure muscle of web is welded to connect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620420586.1U CN205604581U (en) | 2016-05-11 | 2016-05-11 | Large -span shaped steel prestressed concrete combination beam |
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| CN201620420586.1U CN205604581U (en) | 2016-05-11 | 2016-05-11 | Large -span shaped steel prestressed concrete combination beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760204A (en) * | 2017-01-03 | 2017-05-31 | 高力强 | Concrete beam or column capable of improving torsional bearing capacity and construction method thereof |
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2016
- 2016-05-11 CN CN201620420586.1U patent/CN205604581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760204A (en) * | 2017-01-03 | 2017-05-31 | 高力强 | Concrete beam or column capable of improving torsional bearing capacity and construction method thereof |
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