CN214364076U - Large-span slow-bonding prestressed beam - Google Patents
Large-span slow-bonding prestressed beam Download PDFInfo
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- CN214364076U CN214364076U CN202120038624.8U CN202120038624U CN214364076U CN 214364076 U CN214364076 U CN 214364076U CN 202120038624 U CN202120038624 U CN 202120038624U CN 214364076 U CN214364076 U CN 214364076U
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Abstract
The utility model relates to a large-span slow bonding prestressed beam, include: the large-span slow-bonding prestressed beam comprises a template system, a supporting structure, a prestressed tensioning end component, a prestressed fixed end component, beam steel bars and slow-bonding prestressed bars; the template system comprises a plate template, a tension end pouring template, a beam template and a column template, wherein the plate template, the beam template and the column template are supported and fixed through a support structure, and the support structure is formed by erecting steel scaffolds; the beam reinforcing steel bars comprise stress bars and stirrups, and the beam reinforcing steel bars are arranged in the concrete beam. The utility model has the advantages that: the utility model has simple components, reasonable structure and convenient assembly and disassembly; the template system of the utility model can be repeatedly used for a plurality of times, and the application form is flexible; the utility model discloses reduce the emission of pollutant (mortar), reduced the destruction to the environment.
Description
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to large-span slow bonding prestressed beam.
Background
Along with the great improvement of the engineering technology level and the increasing of the personalized demand in recent years, the demand of the domestic building market for open space is increased; the prestressed beam technology has the characteristics of small self weight, high rigidity, cracking resistance, strong deformation resistance and the like, and has good adaptability to large-span and large-load structures.
The traditional prestressed beam uses unbonded prestressed tendons or bonded prestressed tendons, the unbonded prestressed tendons have the defect of insufficient structural performance, pore channels and pressure drop need to be arranged in the bonded prestressed tendon construction, the process is complex, and a large amount of pollutants are generated.
In view of this, in order to improve the existing engineering problem, a long-span slow-bonding prestressed beam which can accelerate the construction efficiency, reduce the damage to the environment and has good economic and social benefits is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can accelerate the efficiency of construction to the not enough and polluted environment's of structural performance of unbonded prestressing tendons and the roof beam that has the bonding prestressing tendons to cause technical problem, reduce the destruction to the environment simultaneously, have good economic and social's large-span slow bonding prestressing beams.
The large-span slow-bonding prestressed beam comprises a template system, a supporting structure, a prestressed tensioning end component, a prestressed fixed end component, beam reinforcing steel bars and slow-bonding prestressed reinforcing steel bars;
the template system comprises a plate template, a tension end pouring template, a beam template and a column template, wherein the plate template, the beam template and the column template are supported and fixed through a support structure, and the support structure is formed by erecting steel scaffolds;
the tension end pouring template is a steel template and comprises a base plate, a rotatable fender, two vertical plates and fixed steel bars; one end of the rotatable mudguard is connected with the base plate through a hinge, the rotatable mudguard is positioned between two vertical plates, and the vertical plates are fixed on the base plate; slots are formed in the top ends of the two vertical plates in parallel, and fixing steel bars are installed in the slots; the tension end pouring template is fixedly arranged on a beam template at one end of the prestressed beam;
the prestress tension end component comprises a base plate, a square opening cavity die, a bearing plate and a spiral rib, the prestress fixing end component comprises an extrusion anchorage device, the bearing plate and the spiral rib, the slow bonding prestress rib vertically penetrates through a preformed hole of the bearing plate, the length of the slow bonding prestress rib extending out of the bearing plate is not less than 30cm, and the spiral rib is fixed behind the bearing plate;
the beam reinforcing steel bars comprise stress bars and stirrups, and the beam reinforcing steel bars are arranged in the concrete beam;
the slow-bonding prestressed tendons are fixed through the positioning steel bars and penetrate through the whole concrete beam.
Preferably, the method comprises the following steps: the plate templates, the beam templates and the column templates are made of wood, steel plates or aluminum plates.
Preferably, the method comprises the following steps: and the fixed steel bar in the tension end pouring template is fixed through a bolt.
Preferably, the method comprises the following steps: the square opening cavity die is arranged at the center of the base plate of the stretch-draw end pouring template.
Preferably, the method comprises the following steps: the extrusion anchorage device is positioned at the front part of the bearing plate.
The utility model has the advantages that:
(1) the utility model discloses a component simple, rational in infrastructure, equipment and dismantlement are convenient.
(2) The utility model discloses a template system can reuse many times, and the application form is nimble.
(3) The utility model discloses reduce the emission of pollutant (mortar), reduced the destruction to the environment.
Drawings
FIG. 1 is a schematic view of a large-span slow-bonding prestressed beam;
FIG. 2 is a layout diagram of a slow bonding prestressed tendon;
FIG. 3 is a drawing of a construction of a tension end casting form;
FIG. 4 is a schematic view of a pre-stressed tension end member;
FIG. 5 is a schematic view of a prestressed anchor end member.
Description of reference numerals: 1-plate formwork, 2-support structure, 3-tensioning end pouring formwork, 4-beam steel bar, 5-stress bar, 6-stirrup, 7-slow bonding prestressed bar, 8-beam formwork, 9-column formwork, 10-concrete beam, 11-positioning steel bar, 12-base plate, 13-rotatable fender, 14-vertical plate, 15-fixed steel bar, 16-slot, 17-bolt, 18-concrete, 19-spiral bar, 20-bearing plate, 21-square opening cavity formwork and 22-extrusion anchorage device.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
As an example, the large-span slow-bonding prestressed beam shown in fig. 1 to 5 includes a formwork system, a supporting structure 2, a prestressed tension end member, a prestressed fixing end member, a beam reinforcement 4 and a slow-bonding prestressed tendon 7.
The template system comprises a plate template 1, a tension end pouring template 3, a beam template 8 and a column template 9, wherein the beam template 8 is arranged on the side part of the prestressed beam, the plate template 1 is arranged on the upper part of the prestressed beam, and the column template 9 is arranged below the prestressed beam; the plate formwork 1, the beam formwork 8 and the column formwork 9 are supported and fixed through the supporting structure 2, and the supporting structure 2 is formed by erecting a steel scaffold.
The tension end pouring template 3 is a steel template and comprises a base plate 12, a rotatable fender 13, two vertical plates 14 and fixed steel bars 15; one end of the rotatable mudguard 13 is connected with the base plate 12 through a hinge, the rotatable mudguard 13 is positioned between two vertical plates 14, and the vertical plates 14 are fixed on the base plate 12; the two vertical plates 14 are provided with slots 16 at the top ends in parallel, fixed steel bars 15 are arranged in the slots 16, and the fixed steel bars 15 can move in the slots 16 by screwing or unscrewing the fixed steel bars 15; when the prestressed beam stretching end seal pouring is carried out, the stretching end pouring template 3 is fixedly installed on the beam template 8 at one end of the prestressed beam, the fixed reinforcing steel bars 15 are moved to enable the rotatable fender 13 to be in an inclined state, the fixed reinforcing steel bars 15 are fixed to carry out concrete 18 pouring, after the concrete 18 pouring is finished, the fixed reinforcing steel bars 15 are unscrewed to enable the rotatable fender 13 to be vertically attached to the base plate 12, the fixed reinforcing steel bars 15 are screwed tightly, and the concrete 18 is maintained.
The prestress tension end component comprises a base plate 12, a square opening cavity die 21, a bearing plate 20 and a spiral rib 19, the prestress fixing end component comprises an extrusion anchorage device 22, the bearing plate 20 and the spiral rib 19, the slow bonding prestress rib 7 vertically penetrates through a preformed hole of the bearing plate 20, the length of the slow bonding prestress rib 7 extending out of the bearing plate 20 is not less than 30cm, and the spiral rib 19 is fixed behind the bearing plate 20.
The beam steel bars 4 comprise stress bars 5 and stirrups 6 and are arranged in the concrete beam 10 according to the drawing.
The slow-bonding prestressed tendons 7 are fixed through positioning steel bars 11 and penetrate through the whole concrete beam 10.
Further, the plate formwork 1, the beam formwork 8 and the column formwork 9 may be made of wood, steel plate, aluminum plate, etc.
Further, the fixed steel bars 15 in the tension end casting formwork 3 are fixed through bolts 17.
Further, the square opening cavity mold 21 is arranged at the center of the base plate 12 of the tensioning end pouring template 3, and the square opening cavity mold 21 needs to be detached after the concrete beam 10 is poured and before the slow bonding prestressed tendons 7 are tensioned. The extrusion anchorage 22 is located in front of the bearing plate 20.
Furthermore, the prestressed tensioning end component meets the strength requirement after the concrete beam 10 is poured, and tensioning end sealing construction is carried out through the tensioning end pouring template 3 after the prestressed tendon 7 is tensioned.
The utility model discloses can accelerate the efficiency of construction, reduce the destruction to the environment simultaneously.
Claims (5)
1. The large-span slow bonding prestressed beam is characterized in that: the prestressed concrete beam comprises a template system, a supporting structure (2), a prestressed tensioning end component, a prestressed fixed end component, beam steel bars (4) and slowly-bonded prestressed bars (7);
the template system comprises a plate template (1), a tension end pouring template (3), a beam template (8) and a column template (9), wherein the plate template (1), the beam template (8) and the column template (9) are supported and fixed through a supporting structure (2), and the supporting structure (2) is formed by erecting steel scaffolds;
the tension end pouring template (3) is a steel template and comprises a base plate (12), a rotatable fender (13), two vertical plates (14) and fixed steel bars (15); one end of the rotatable mudguard (13) is connected with the base plate (12) through a hinge, the rotatable mudguard (13) is positioned between two vertical plates (14), and the vertical plates (14) are fixed on the base plate (12); slots (16) are arranged at the top ends of the two vertical plates (14) in parallel, and fixed steel bars (15) are arranged in the slots (16); the tension end pouring template (3) is fixedly arranged on a beam template (8) at one end of the prestressed beam;
the prestress tension end component comprises a base plate (12), a square opening cavity die (21), a bearing plate (20) and a spiral rib (19), the prestress fixing end component comprises an extrusion anchorage device (22), the bearing plate (20) and the spiral rib (19), the slow bonding prestress rib (7) vertically penetrates through a preformed hole of the bearing plate (20), the length of the slow bonding prestress rib (7) extending out of the bearing plate (20) is not less than 30cm, and the spiral rib (19) is fixed behind the bearing plate (20);
the beam steel bars (4) comprise stress bars (5) and stirrups (6), and the beam steel bars (4) are arranged in the concrete beam (10);
the slow-bonding prestressed tendons (7) are fixed through positioning steel bars (11) and penetrate through the whole concrete beam (10).
2. The large-span slow-bonded prestressed girder according to claim 1, wherein said slab form (1), said girder form (8) and said column form (9) are made of wood, steel plate or aluminum plate.
3. The large-span slow-bonded prestressed girder according to claim 1, wherein the fixing steel bars (15) in the tension-end casting form (3) are fixed by bolts (17).
4. The large-span slow-bonded prestressed girder according to claim 1, wherein said square open cavity form (21) is provided at the center of the base plate (12) of the tension-end casting form (3).
5. The large-span slow-bonded prestressed girder according to claim 1, wherein said extrusion anchors (22) are provided in front of the bearing plates (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038624.8U CN214364076U (en) | 2021-01-07 | 2021-01-07 | Large-span slow-bonding prestressed beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038624.8U CN214364076U (en) | 2021-01-07 | 2021-01-07 | Large-span slow-bonding prestressed beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214364076U true CN214364076U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120038624.8U Active CN214364076U (en) | 2021-01-07 | 2021-01-07 | Large-span slow-bonding prestressed beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214364076U (en) |
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2021
- 2021-01-07 CN CN202120038624.8U patent/CN214364076U/en active Active
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