CN103498530A - Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam - Google Patents
Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam Download PDFInfo
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- CN103498530A CN103498530A CN201310498506.5A CN201310498506A CN103498530A CN 103498530 A CN103498530 A CN 103498530A CN 201310498506 A CN201310498506 A CN 201310498506A CN 103498530 A CN103498530 A CN 103498530A
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Abstract
The invention discloses a prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam, and belongs to the field of building components. The prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam is composed of a prefabricated profile steel framework, a prefabricated steel reinforced concrete lower beam and a cast-in-place steel reinforced concrete upper beam. The prefabricated profile steel framework is composed of full-length tooth hole-shaped web T-shaped steel, prestressed steel bars and common constructional steel bars. A tooth hole-shaped web is provided with a lap joint rod, wherein the two sides of the lap joint rod extend outward perpendicularly. The prestressed steel bars and the common constructional steel bars are symmetric about the full-length tooth hole-shaped web, arranged around a cross stay bar and hooped through transverse stirrups to form a cage, and the cage is connected with the T-shaped steel integrally. Concrete is poured along tooth holes of the web and the transverse stirrup cage to form the prefabricated steel reinforced concrete lower beam. On the spot, the steel reinforced concrete upper beam is cast in place on the lower beam along the top surface of the T-shaped steel to form the composite beam, or the cast-in-place steel reinforced concrete upper beam and a floor cast-in-place layer are integrally formed. According to the design, the self weight of a beam body is reduced, the resultant force between the poured concrete and the profile steel is enhanced, and the bearing capacity and anti-seismic property of the T-shaped steel reinforced concrete composite beam are improved.
Description
A kind of prestressing force perforation of the present invention shape web T-steel concrete combination beam, belong to the building unit field.
Background technology
Fast development along with building industry, existing conventional steel structure, wooden construction, masonry structure and reinforced concrete structure, can not meet development need, the steel reinforced concrete compound beam body structure that developed recently gets up, more traditional beam body has better performance, but, existing girder with rolled steel section en cased in concrete is the combination of single type Steel concrete substantially, along with the building beam span increases, the perhaps increasing of load, show gradually its weak point, for this reason, need exploitation can be suitable for the combining structure beam of different spans and load, acquisition is than traditional steel-concrete structure beam, bearing capacity is large, rigidity is large, the combining structure beam body that anti-seismic performance is good, to meet differing heights, the building demand of span.
Summary of the invention
The purpose of this invention is to provide a kind of prestressing force perforation shape web T-steel concrete combination beam, the T-steel web is perforation shape, reduce the shaped steel deadweight, strengthened the engaging force of concreting and shaped steel simultaneously, improved bearing capacity and the anti-seismic performance of steel reinforced concrete compound beam.
The objective of the invention is to be achieved through the following technical solutions:
A kind of prestressing force perforation of the present invention shape web T-steel concrete combination beam, by precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam, formed, described precasting reinforcing bar is comprised of elongated perforation shape web T-steel, prestressed reinforcement, ordinary constitution reinforcing bar, there is respectively the affixed stiffener that is provided with through hole at described elongated perforation shape web T-steel two ends, at the castellated plates basifacial of its perforation shape web, are provided with the vertical overhanging needling to both sides, prestressed reinforcement, ordinary constitution reinforcing bar symmetrical elongated perforation shape web respectively is arranged on around needling, insert in the corresponding aperture of stiffener at its two ends correspondence respectively, and be connected into transverse reinforcement hoop cage through the transverse reinforcement hoop through perforation shape web perforation hoop, with elongated perforation shape web T-steel, be integrally connected, along elongated perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam, at the construction field (site), on precast concrete reinforcing bar yi word pattern lower beam, along the cast-in-situ concrete of elongated perforation shape web T-steel end face, prefabricated steel reinforced concrete top beam, be shaped to compound beam, or implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer along elongated perforation shape web T-steel end face.
The symmetrical elongated perforation shape web of described prestressed reinforcement is separately positioned on the upper and lower of needling, and the ordinary constitution reinforcing bar is located at respectively the prestressed reinforcement both sides.
Described perforation shape web T-steel two ends stiffener, be connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.
A kind of prestressing force perforation of the present invention shape web T-steel concrete combination beam, T-steel has perforation shape web, reduced the deadweight of girder steel, shape steel web and concrete bonding force while building have been strengthened simultaneously, not only improved to a certain extent the bearing capacity of girder steel, be provided with symmetrical needling in profile of tooth web both sides, obviously increase on the basis of shaped steel weight not having, needling is as the part of precasting reinforcing bar, effective enhanced type steel and concrete bonding force, improve the integrated carrying ability of structure, the needling top and the bottom are provided with prestressed reinforcement simultaneously, when the beam bearing load, the beam lower limb produces pulling force, top edge produces pressure, can obtain good balance when prestressing force and load action, improve the arrangement works performance, improve the use ability of beam, and during site operation, can implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer, meet the civilian and public building needs of the middle low layer of general span.
The accompanying drawing explanation
Fig. 1 compound beam schematic perspective view of the present invention;
Fig. 2 perforation shape of the present invention web T-steel and needling schematic diagram;
Fig. 3 perforation shape of the present invention web T-steel two ends and stiffener, H shaped steel connector connection diagram;
Fig. 4 prestressed reinforcement of the present invention and ordinary constitution reinforcement placement schematic diagram;
The prefabricated reinforcing bar concrete lower part of Fig. 5 the present invention beam schematic diagram;
The A-A schematic cross-section of the above-mentioned Fig. 5 of the prefabricated reinforcing bar concrete lower part of Fig. 6 the present invention beam;
Fig. 7 compound beam of the present invention and with the cast-in-place moulding of the one of precast floor slab in-situ layer vertical section schematic diagram.
The specific embodiment
How existing accompanying drawings the present invention implements:
A kind of prestressing force perforation of the present invention shape web T-steel concrete combination beam, , by the precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam form, by the precasting reinforcing bar, the concrete lower part of precoating beam D and cast-in-situ concrete top beam B form, described precasting reinforcing bar is by elongated perforation shape web T-steel 1, prestressed reinforcement 7, ordinary constitution reinforcing bar 6 forms, the affixed stiffener 3 that is provided with through hole respectively at the two ends of described elongated perforation shape web T-steel 1, castellated plates basifacial at its perforation shape web is provided with the vertical overhanging needling 2 to both sides, the symmetrical elongated perforation shape web of prestressed reinforcement 7 is separately positioned on the upper and lower of needling, and ordinary constitution reinforcing bar symmetry respectively is located at prestressed reinforcement 6 both sides, insert respectively in the corresponding through hole of two ends stiffener 3 at the two ends of prestressed reinforcement 7 and ordinary constitution reinforcing bar 6, and be connected into transverse reinforcement hoop cage through transverse reinforcement hoop 8 through perforation shape web perforation hoop, with elongated perforation shape web T-steel, is integrally connected, along perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam D, at the construction field (site), on precast concrete reinforcing bar yi word pattern lower beam D, along elongated perforation shape web T-steel end face cast-in-situ concrete reinforcing bar top beam B, be shaped to compound beam, referring to Fig. 1, or, after the both sides platform P of moulding prefabricated concrete reinforcing bar lower beam D takes and puts precast floor slab C, implement the cast-in-place moulding of one of in-situ layer C-1 of cast-in-situ concrete reinforcing bar top beam B and precast floor slab C along elongated perforation shape web T-steel end face referring to Fig. 7.
Described prefabricated perforation shape web T-steel two ends are connected with respectively H shape shaped steel connector 4, and these H shape shaped steel connector 4 webs have connecting hole.
Claims (3)
1. a prestressing force perforation shape web T-steel concrete combination beam, it is characterized in that, by precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam, formed, described precasting reinforcing bar is comprised of elongated perforation shape web T-steel, prestressed reinforcement, ordinary constitution reinforcing bar, there is respectively the affixed stiffener that is provided with through hole at described elongated perforation shape web T-steel two ends, at the castellated plates basifacial of its perforation shape web, are provided with the vertical overhanging needling to both sides, prestressed reinforcement, ordinary constitution reinforcing bar symmetrical elongated perforation shape web respectively is arranged on around needling, insert in the corresponding aperture of stiffener at its two ends correspondence respectively, and be connected into transverse reinforcement hoop cage through the transverse reinforcement hoop through perforation shape web perforation hoop, with elongated perforation shape web T-steel, be integrally connected, along elongated perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam, on precast concrete reinforcing bar yi word pattern lower beam, be shaped to compound beam along elongated perforation shape web T-steel end face cast-in-situ concrete reinforcing bar top beam, or implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer along elongated perforation shape web T-steel end face.
2. a kind of prestressing force perforation shape web T-steel concrete combination beam according to claim 1, it is characterized in that, the symmetrical elongated perforation shape web of prestressed reinforcement is separately positioned on the upper and lower of needling, and the ordinary constitution reinforcing bar is located at respectively the prestressed reinforcement both sides.
3. a kind of prestressing force perforation shape web T-steel concrete combination beam according to claim 1, is characterized in that, perforation shape web T-steel two ends stiffener, be connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498506.5A CN103498530B (en) | 2013-10-22 | 2013-10-22 | A kind of prestressing force perforation shape web T-steel concrete combination beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498506.5A CN103498530B (en) | 2013-10-22 | 2013-10-22 | A kind of prestressing force perforation shape web T-steel concrete combination beam |
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| CN103498530A true CN103498530A (en) | 2014-01-08 |
| CN103498530B CN103498530B (en) | 2015-09-30 |
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| CN201310498506.5A Expired - Fee Related CN103498530B (en) | 2013-10-22 | 2013-10-22 | A kind of prestressing force perforation shape web T-steel concrete combination beam |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780960A (en) * | 2016-04-27 | 2016-07-20 | 福建工程学院 | Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint |
| CN109868943A (en) * | 2018-12-29 | 2019-06-11 | 杭萧钢构股份有限公司 | A kind of combination beam and its construction method of girder steel and steel bar truss floor support plate composition |
| CN112593631A (en) * | 2020-12-27 | 2021-04-02 | 黄旭祥 | Main structure of green assembly type building |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0123642A2 (en) * | 1983-04-25 | 1984-10-31 | Arbed S.A. | Composite beam |
| JP2000144905A (en) * | 1998-11-12 | 2000-05-26 | Ohbayashi Corp | Mixed structural beam |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | Prefabricated steel-concrete composite beam |
| CN203547018U (en) * | 2013-10-22 | 2014-04-16 | 湖北弘毅建设有限公司 | Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam |
-
2013
- 2013-10-22 CN CN201310498506.5A patent/CN103498530B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0123642A2 (en) * | 1983-04-25 | 1984-10-31 | Arbed S.A. | Composite beam |
| JP2000144905A (en) * | 1998-11-12 | 2000-05-26 | Ohbayashi Corp | Mixed structural beam |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | Prefabricated steel-concrete composite beam |
| CN203547018U (en) * | 2013-10-22 | 2014-04-16 | 湖北弘毅建设有限公司 | Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780960A (en) * | 2016-04-27 | 2016-07-20 | 福建工程学院 | Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint |
| CN109868943A (en) * | 2018-12-29 | 2019-06-11 | 杭萧钢构股份有限公司 | A kind of combination beam and its construction method of girder steel and steel bar truss floor support plate composition |
| CN109868943B (en) * | 2018-12-29 | 2024-01-12 | 杭萧钢构股份有限公司 | Combined beam formed by steel beam and steel bar truss floor support plate and construction method thereof |
| CN112593631A (en) * | 2020-12-27 | 2021-04-02 | 黄旭祥 | Main structure of green assembly type building |
| CN112593631B (en) * | 2020-12-27 | 2021-12-07 | 中建五局华南建设有限公司 | Main structure of green assembly type building |
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| CN103498530B (en) | 2015-09-30 |
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