CN219034078U - Protective structure for slow-bonding prestressed reinforcement sheath rib groove - Google Patents
Protective structure for slow-bonding prestressed reinforcement sheath rib groove Download PDFInfo
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- CN219034078U CN219034078U CN202223220636.6U CN202223220636U CN219034078U CN 219034078 U CN219034078 U CN 219034078U CN 202223220636 U CN202223220636 U CN 202223220636U CN 219034078 U CN219034078 U CN 219034078U
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Abstract
The utility model discloses a slow-bonding prestressed reinforcement sheath rib groove protection structure which comprises a beam support, a beam bottom die, a frame beam main reinforcement which is firstly constructed, a frame beam stirrup which is firstly constructed, a slow-bonding prestressed reinforcement, a phi 10mm reinforcement, a frame beam main reinforcement which is later constructed, a frame beam stirrup which is later constructed, a frame beam side die, a mounting round cage and a platform support, wherein the platform support is arranged on the outer side of the beam support, and the beam bottom die is arranged on the top of the beam support. The utility model is provided with the frame beam main reinforcement which is firstly constructed, the frame beam stirrup which is firstly constructed, the slow bonding prestressed reinforcement, the phi 10mm reinforcement, the frame beam main reinforcement which is later constructed, the frame beam stirrup which is later constructed, the frame beam side mould, the mounting round cage and the platform support, can effectively avoid the damage of the slow bonding prestressed reinforcement sheath rib groove, ensures the bonding and anchoring performance of the slow bonding prestressed reinforcement, is convenient to construct, is convenient to check, effectively improves the working efficiency, and further reduces the construction cost.
Description
Technical Field
The utility model relates to the technical field of slow-bonding prestress construction, in particular to a slow-bonding prestress steel bar sheath rib groove protection structure.
Background
The prestress is to improve the service performance of the structure, compressive stress is pre-applied to the structure during construction, and the prestress can fully or partially counteract tensile stress caused by load during the service of the structure, so that the structural damage is avoided, and the prestress is commonly used for concrete structures. The prestressed concrete structure is characterized in that before the structure bears load, pressure is applied to the structure in advance, so that compressive stress is generated in the tensile zone concrete when external load acts on the structure, the tensile stress generated by the external load is counteracted or reduced, and the structure does not generate cracks or cracks later under the normal use condition.
According to the bonding mode, the prestressed concrete structure is divided into three types, namely bonding prestress, unbonded prestress and slow bonding prestress.
The existing conventional civil construction adopts prestressed reinforcement, most of the structures are unbonded prestressed reinforcement, the post-tensioning method is adopted for tensioning, and the unbonded prestressed reinforcement outer sheath is smooth, so that when the construction is completed after the frame beam reinforcement is bound, the prestressed reinforcement is completely paved at a designed position by adopting a traction method from one side beam end through a bracket, the damage to the outer sheath is small, and the construction quality can be ensured after the field treatment.
The slow bonding prestressing technique is a new prestressing technique developed after the unbonded prestressing technique and the bonded prestressing technique. The slow-bonding prestress absorbs the construction characteristics of no bonding and has the mechanical characteristics of bonding, the slow-bonding prestress steel strand is free to deform in a telescopic way in the construction and does not bond with the surrounding retarding adhesive, and the prestress rib and the surrounding concrete form an integral and jointly work through the solidified retarding adhesive and the surrounding concrete in a preset period after the construction is completed. In order to achieve the integral and common work of the prestressed tendons and surrounding concrete, the outer sheath is critical, and the sheath rib height directly influences the bonding anchoring performance, so that the sheath rib groove size must not be damaged in construction.
Disclosure of Invention
The utility model aims to provide a slow-bonding prestressed reinforcement sheath rib groove protection structure so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a slow bonding prestressing steel sheath rib groove protection architecture, includes beam support, roof beam die block, the frame roof beam body muscle of constructing earlier, the frame roof beam stirrup of constructing earlier, slow bonding prestressing steel, phi 10mm reinforcing bar, the frame roof beam body muscle of constructing later, the frame roof beam stirrup of constructing later, frame roof beam side form, installation round cage and platform support, the outside of roof beam support is provided with the platform support, and the top of roof beam support is provided with the roof beam die block, the top of roof beam die block is provided with the frame roof beam stirrup of constructing earlier, and the inboard top and the bottom of frame roof beam stirrup of constructing earlier all are provided with the frame roof beam body muscle of constructing earlier, the surface welding of frame roof beam stirrup of constructing earlier has phi 10mm reinforcing bar, and the surface of phi 10mm reinforcing bar is provided with slow bonding prestressing steel, and simultaneously, the surface of slow bonding prestressing steel is provided with the installation round cage.
Preferably, the platform support is replaced by a template support, and the surface of the platform support is provided with a frame beam side template.
Preferably, the inner side of the frame beam side die is provided with a frame beam stirrup for post construction, and the inner side of the frame beam stirrup for post construction is provided with a frame beam main bar for post construction.
Preferably, the installation round cage is made of field steel bars.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model is provided with the frame beam main reinforcement which is firstly constructed, the frame beam stirrup which is firstly constructed, the slow bonding prestressed reinforcement, the phi 10mm reinforcement, the frame beam main reinforcement which is later constructed, the frame beam stirrup which is later constructed, the frame beam side mould, the mounting round cage and the platform support, can effectively avoid the damage of the slow bonding prestressed reinforcement sheath rib groove, ensures the bonding and anchoring performance of the slow bonding prestressed reinforcement, is convenient to construct, is convenient to check, effectively improves the working efficiency, and further reduces the construction cost.
Drawings
Fig. 1 is a cross-sectional view of a prestressed reinforcement before installation;
fig. 2 is a cross-sectional view of the prestressed reinforcement installation;
fig. 3 is a cross-sectional view of the pre-stressed steel bar after installation.
In the figure: the frame beam main reinforcement 1, the frame beam stirrup 2, the slow bonding prestressed reinforcement 3, the phi 10mm reinforcement 4, the frame beam main reinforcement 5, the frame beam stirrup 6, the frame beam side mold 7, the installation round cage 8 and the platform support 9.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1-3, a protective structure for a slow bonding prestressed reinforcement sheath rib groove comprises a beam support, a beam bottom die, a frame beam main reinforcement 1 which is firstly constructed, a frame beam stirrup 2 which is firstly constructed, a slow bonding prestressed reinforcement 3, a phi 10mm reinforcement 4, a frame beam main reinforcement 5 which is later constructed, a frame beam stirrup 6 which is later constructed, a frame beam side die 7, a mounting round cage 8 and a platform support 9, wherein the outer side of the beam support is provided with the platform support 9, the top of the beam support is provided with the beam bottom die, the top of the beam bottom die is provided with the frame beam stirrup 2 which is firstly constructed, the top and the bottom of the inner side of the frame beam stirrup 2 which is firstly constructed are both provided with the frame beam main reinforcement 1 which is firstly constructed, the surface of the frame beam stirrup 2 which is firstly constructed is welded with a phi 10mm reinforcement 4, and the surface of the phi 10mm reinforcement 4 is provided with the slow bonding prestressed reinforcement 3, and simultaneously, the surface of the slow bonding prestressed reinforcement 3 is provided with the mounting round cage 8.
The horizontal bracket is arranged by utilizing the local stirrups of the frame beam binding in advance, the slow-bonding prestressed reinforcement 3 is firstly flatly arranged on the bracket, and after the inspection is qualified, the frame residual reinforcement binding and the template side mold construction are carried out, so that the damage of the slow-bonding prestressed reinforcement sheath rib groove can be effectively avoided, and the bonding anchoring performance of the slow-bonding prestressed reinforcement 3 is ensured.
The platform support 9 is replaced by a formwork support, and the surface of the platform support 9 is provided with a frame beam side formwork 7.
The inner side of the frame beam side mold 7 is provided with a frame beam stirrup 6 for post construction, and the inner side of the frame beam stirrup 6 for post construction is provided with a frame beam main rib 5 for post construction.
The installation round cage 8 is made of field steel bars.
When the construction method is used, the construction of the platform support 9 is firstly carried out according to the site situation, then the construction is carried out on the frame beam main reinforcement 1 which is firstly constructed and the frame beam stirrup 2 which is firstly constructed, the phi 10mm reinforcement 4 is welded on the frame beam stirrup 2 which is firstly constructed according to the slow bonding prestress reinforcement laying curve elevation, the slow bonding prestress reinforcement 3 is arranged on the installation round cage 8, the installation round cage 8 is utilized to move on the platform support 9, the slow bonding prestress reinforcement 3 is laid on the phi 10mm reinforcement 4, and finally the frame beam main reinforcement 5 which is constructed after construction, the frame beam stirrup 6 which is constructed after construction and the frame beam side mold 7 are constructed after construction.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a slow bonding prestressing steel sheath rib groove protection architecture, includes beam support, roof beam die block, frame roof beam body rib (1) of construction earlier, frame roof beam stirrup (2) of construction earlier, slow bonding prestressing steel (3), phi 10mm reinforcing bar (4), frame roof beam body rib (5) of construction later, frame roof beam stirrup (6) of construction later, frame roof beam side form (7), installation round cage (8) and platform support (9), its characterized in that: the outside that the roof beam was supported is provided with platform support (9), and the top that the roof beam was supported is provided with the roof beam die block, the top of roof beam die block is provided with frame roof beam stirrup (2) of construction earlier, and the inboard top and the bottom of frame roof beam stirrup (2) of construction earlier all are provided with frame roof beam owner muscle (1) of construction earlier, the surface welding of frame roof beam stirrup (2) of construction earlier has phi 10mm reinforcing bar (4), and the surface of phi 10mm reinforcing bar (4) is provided with slowly bonds prestressing steel (3), simultaneously, slowly bonds prestressing steel (3)'s surface and is provided with installation round cage (8).
2. The slow bonding prestress steel bar jacket rib groove protection structure as set forth in claim 1, wherein: the platform support (9) is replaced by a template support, and a frame beam side die (7) is arranged on the surface of the platform support (9).
3. The slow bonding prestress steel bar jacket rib groove protection structure as set forth in claim 1, wherein: the inner side of the frame beam side die (7) is provided with a frame beam stirrup (6) for post construction, and the inner side of the frame beam stirrup (6) for post construction is provided with a frame beam main bar (5) for post construction.
4. The slow bonding prestress steel bar jacket rib groove protection structure as set forth in claim 1, wherein: the installation round cage (8) is made of field steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223220636.6U CN219034078U (en) | 2022-12-02 | 2022-12-02 | Protective structure for slow-bonding prestressed reinforcement sheath rib groove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223220636.6U CN219034078U (en) | 2022-12-02 | 2022-12-02 | Protective structure for slow-bonding prestressed reinforcement sheath rib groove |
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| CN219034078U true CN219034078U (en) | 2023-05-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653317A (en) * | 2022-12-02 | 2023-01-31 | 中国三冶集团有限公司 | Pre-assembly method of retard-bonded prestressed reinforcement |
| CN117569445A (en) * | 2024-01-15 | 2024-02-20 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
-
2022
- 2022-12-02 CN CN202223220636.6U patent/CN219034078U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653317A (en) * | 2022-12-02 | 2023-01-31 | 中国三冶集团有限公司 | Pre-assembly method of retard-bonded prestressed reinforcement |
| CN117569445A (en) * | 2024-01-15 | 2024-02-20 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
| CN117569445B (en) * | 2024-01-15 | 2024-03-29 | 北京市建筑工程研究院有限责任公司 | Super-long seamless slow-bonding prestressed concrete structure and construction method |
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