CN211923636U - Prefabricated plate reinforcing apparatus - Google Patents
Prefabricated plate reinforcing apparatus Download PDFInfo
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- CN211923636U CN211923636U CN202020172389.9U CN202020172389U CN211923636U CN 211923636 U CN211923636 U CN 211923636U CN 202020172389 U CN202020172389 U CN 202020172389U CN 211923636 U CN211923636 U CN 211923636U
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Abstract
The utility model discloses a prefabricated plate reinforcing apparatus, including prefabricated plate (1) of seting up hole (11), its characterized in that: a notch (12) is formed above the precast slab hole (11), the size of the notch (12) is suitable for the arrangement of the reinforcing steel bar (2), and the reinforcing steel bar (2) is placed in the precast slab hole (11) through the notch (12). Adopt the utility model discloses can promote former prefabricated plate floor load strength in the use, promote original whole prefabricated plate floor bearing capacity.
Description
Technical Field
The utility model belongs to the technical field of the building engineering construction, concretely relates to prefabricated plate reinforcing apparatus.
Background
The prefabricated slab is a floor slab used in early buildings; the precast concrete is produced and processed in a precast yard, and the precast concrete is directly transported to a construction site for installation, so the precast concrete is called a precast slab.
In the actual use process, the bearing capacity of the prefabricated slab floor is sometimes required to be improved, for example, the living load of the floor of a house, a dormitory, a hotel, an office building, a hospital ward, a nursery house and a kindergarten is 1.5kN/m2 as specified by the old edition load specification GBJ 9-87; the new load specification GB50009-2012 stipulates that the live load of the building floors is 2.0kN/m2, and other situations that constant decoration load and equipment load need to be added to the floors require reinforcement treatment on the existing floors.
The existing reinforcing modes are common as follows: the method of sticking carbon fiber cloth and steel plates on the bottom of the floor slab, adding a whole pouring layer on the floor and the like is adopted; if the methods of sticking the carbon fiber cloth, sticking the steel plate and the like are adopted, the high-viscosity adhesive is easy to suffer from the problems of structural adhesive aging and the like, so that the sticking quality is poor; if the floor is adopted to increase the whole pouring layer, the thickness of the floor is increased, and the problems of insufficient minimum reinforcement ratio, formation of few rib plates, easy brittle failure and the like exist.
The above problems are urgently needed to be improved and to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the prior art not enough, the utility model provides a prefabricated plate reinforcing apparatus.
The utility model discloses a solve the technical scheme that above-mentioned problem adopted and be: the precast slab reinforcing device comprises a precast slab provided with a hole, wherein a notch is formed above the precast slab hole, the notch is suitable for placing a reinforcing bar, and an external reinforcing bar is placed in the precast slab hole through the notch.
Preferably, the reinforcing bars placed in the holes of the precast slabs are fixed in position by reinforcing bar brackets.
Preferably, when the number of the reinforcing bars is one, the reinforcing bar support is annular to fix the reinforcing bars.
Preferably, when the number of the reinforcing bars is two or more, the reinforcing bars form reinforcing bar bundles, the distance between two adjacent reinforcing bars in the reinforcing bar bundles is larger than or equal to the diameter of the reinforcing bars, and the reinforcing bar bracket is shaped to be suitable for being wrapped and fixed by the positioning and fixing of the reinforcing bar bundles in the holes of the prefabricated slab.
Preferably, the width of the notch is 30-40 mm.
Preferably, the length of the notch is more than or equal to 1m, and the length of the notch generally accounts for about 2/3 of the total length of the prefabricated plate.
The width and length of the notch are preferably sized to accommodate the reinforcement.
Preferably, the distance between two adjacent reinforcing bars fixed by the reinforcing bar bracket is 12mm-25 mm.
The utility model has the advantages that: the utility model discloses a prefabricated plate reinforcing apparatus, utilize the hole structure of prefabricated plate itself, according to load design value and concrete intensity, calculate through the structure, obtain the arrangement of reinforcement quantity that the prefabricated plate hole needs, again through the notch on the prefabricated plate, carry out the rigidity through the arrangement of reinforcement support with the arrangement of reinforcement and place in the hole, this structure can the original prefabricated plate floor of effectual enhancement bear the ability of load, the not enough problem of various bearing capacity that produces in having solved outside reinforcement, whole prefabricated plate reinforcing apparatus simple structure, easy to carry out the engineering use in a large number, solve the current prefabricated plate intensity and consolidate the problem, promote the bearing capacity of whole prefabricated plate floor, good economic benefits and social.
Drawings
Fig. 1 is a schematic structural view of a prefabricated plate hole of a prefabricated plate reinforcing device according to the present invention when a reinforcement bar is disposed therein;
fig. 2 is a schematic structural view of a prefabricated slab hole of the prefabricated slab reinforcement device according to the present invention when two reinforcing bars are disposed therein;
fig. 3 is a schematic structural view of a prefabricated panel hole of the prefabricated panel reinforcement device according to the present invention when three reinforcing bars are disposed therein;
fig. 4 is a schematic top view of fig. 1, 2 or 3.
Detailed Description
The present invention will be further described with reference to the following specific drawings.
Provided is a method for reinforcing a prefabricated panel, comprising the steps of:
s1, obtaining the specifications and the quantity of reinforcing bars required to be added in the holes of the precast slab through structural calculation according to the load design value and the concrete strength;
taking any single hole of the precast slab in the figures 1-4 as a calculation model, taking the original load and the total value of the increased load as a load design value, and obtaining the number and the specification of the reinforcing bars through a concrete structure design specification GB50010-2010 according to the load design value and the concrete strength;
s2, the floor of the original precast slab may be covered with cushion layer, floor tiles, composite floor and the like, the covering needs to be cleaned from the precast floor, and the position of each precast slab can be determined after the cleaning of the covering is finished;
s3, determining the hole position of each precast slab according to the design drawing, the atlas and the field check, and marking;
s4, arranging a notch above the hole of the floor of the precast slab near one end of the precast slab along the hole direction of the precast slab, wherein the width of the notch is 30-40mm, the length of the notch is more than or equal to 1m, and the length of the notch is about 2/3 of the total length of the precast slab so as to be suitable for placing reinforcing bars;
s5, placing the reinforcing bars in the holes, wherein the reinforcing bars are fixed in position through reinforcing bar supports;
when the number of the reinforcing bars is one, the reinforcing bar bracket can be made into a ring shape, and the installed reinforcing bar bracket and the reinforcing bars are placed into the holes from the notches;
when the number of the reinforcing bars is more than or equal to two, the distance between two adjacent reinforcing bars fixed by the reinforcing bar bracket is more than or equal to the diameter of the reinforcing bar, and the distance is generally 12mm-25 mm;
and S6, pouring high-fluidity fine aggregate concrete into the holes of the precast slabs.
As shown in fig. 1 to 4, there is provided a prefabricated panel reinforcement apparatus, including: the prefabricated slab comprises prefabricated slabs 1, prefabricated slab holes 11 are uniformly formed in the prefabricated slabs 1, a notch 12 is formed above each prefabricated slab hole 11, and the notches 12 penetrate through the prefabricated slab holes 11 from the upper surfaces of the prefabricated slabs and are communicated with the prefabricated slab holes 11; the width of the notch 12 is 30-40mm, the length is more than or equal to 1m, the length of the notch 12 is about 2/3 (see figure 4) of the total length of the precast slab, and the strength of the precast slab 1 is reinforced by arranging the reinforcing bars 2 and reinforcing bar brackets for fixing the reinforcing bars 2 in the holes 11 of the precast slab.
When the number of the reinforcing bars 2 required for reinforcing the strength load of the prefabricated panel is one, an annular reinforcing bar support 21 is manufactured on the outside, and the reinforcing bars 2 and the annular reinforcing bar support 21 are placed into the holes 11 of the prefabricated panel through the notches 12, wherein the annular reinforcing bar support 21 is sleeved on the reinforcing bars 2, as shown in fig. 1.
When the number of the reinforcing bars 2 required for reinforcing the strength load of the prefabricated panel 1 is two, as shown in fig. 2, the reinforcing bar support 22 is externally formed, the reinforcing bar support 22 is shaped to ensure that the distance between the two reinforcing bars 2 is the diameter of a single reinforcing bar, and the two reinforcing bars 2 can be wrapped and fixed by placing the reinforcing bar support 22 and the two reinforcing bars 2 into the holes 11 of the prefabricated panel through the notches 12.
As shown in fig. 3, when the number of the reinforcing bars 2 required for reinforcing the strength load of the prefabricated panel 1 is three, the reinforcing bar support 23 is externally formed, the reinforcing bar support 23 is shaped to ensure that the distance between the three reinforcing bars 2 is equal to the diameter of a single reinforcing bar 2, and the three reinforcing bars 2 can be wrapped and fixed by placing the reinforcing bar support 23 and the three reinforcing bars 2 into the holes 11 of the prefabricated panel through the notches 12.
By analogy, when the number of the reinforcing bars 2 required by reinforcing the strength load of the prefabricated slab 1 is four or more, reinforcing bar bundles are formed, the distance between two adjacent reinforcing bars in the reinforcing bar bundles is larger than or equal to the diameter of the reinforcing bars, and the reinforcing bar support is shaped to be suitable for being wrapped and fixed by the positioning and fixing of the reinforcing bar bundles in the holes of the prefabricated slab.
As shown in FIG. 4, the distance between two adjacent reinforcement brackets is 400mm-600mm and is uniformly arranged along the length direction of the reinforcement 2, so that the strength of the whole reinforcement can be ensured to be uniformly improved along the length direction, and the bearing capacity of the floor in the whole prefabricated slab can be ensured to be uniformly improved.
The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented by various modifications without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a prefabricated plate reinforcing apparatus, includes prefabricated plate (1) of seting up hole (11), its characterized in that: a notch (12) is formed above the precast slab hole (11), the size of the notch (12) is suitable for the arrangement of the reinforcing steel bar (2), and the reinforcing steel bar (2) is placed in the precast slab hole (11) through the notch (12).
2. A prefabricated panel reinforcement device according to claim 1, wherein: the reinforcing bars (2) arranged in the holes (11) of the precast slab are fixed in position by reinforcing bar brackets.
3. A prefabricated panel reinforcement device according to claim 2, wherein: when the number of the reinforcing bars (2) is one, the reinforcing bar support (21) is annular to fix the position of the reinforcing bar (2).
4. A prefabricated panel reinforcement device according to claim 2, wherein: when the number of the reinforcing bars (2) is more than two, the reinforcing bars (2) form reinforcing bar bundles, the distance between every two adjacent reinforcing bars (2) in the reinforcing bar bundles is larger than or equal to the diameter of the reinforcing bars (2), and the reinforcing bar support is shaped to be suitable for being wrapped and fixed by the positioning and fixing of the reinforcing bar bundles in the holes (11) of the prefabricated slab.
5. A prefabricated panel reinforcement device according to claim 1, wherein: the width of the notch is 30-40 mm.
6. A prefabricated panel reinforcement device according to claim 5, wherein: the length of the notch is more than or equal to 1 m.
7. The prefabricated panel reinforcement device according to claim 4, wherein: the distance between two adjacent reinforcing bars fixed by the reinforcing bar bracket is 12-25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020172389.9U CN211923636U (en) | 2020-02-16 | 2020-02-16 | Prefabricated plate reinforcing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020172389.9U CN211923636U (en) | 2020-02-16 | 2020-02-16 | Prefabricated plate reinforcing apparatus |
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| Publication Number | Publication Date |
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| CN211923636U true CN211923636U (en) | 2020-11-13 |
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| CN202020172389.9U Active CN211923636U (en) | 2020-02-16 | 2020-02-16 | Prefabricated plate reinforcing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173309A (en) * | 2020-02-16 | 2020-05-19 | 中冶建筑研究总院（上海）有限公司 | Reinforcing method and reinforcing device for prefabricated slab |
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2020
- 2020-02-16 CN CN202020172389.9U patent/CN211923636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173309A (en) * | 2020-02-16 | 2020-05-19 | 中冶建筑研究总院（上海）有限公司 | Reinforcing method and reinforcing device for prefabricated slab |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230724 Address after: 922 Fujin Road, Baoshan District, Shanghai, 201900 Patentee after: MCC testing and certification (Shanghai) Co.,Ltd. Address before: Room 1212, 43 Guoquan Road, Yangpu District, Shanghai 200433 Patentee before: CHINA METALLURGICAL CONSTRUCTION RESEARCH INSTITUTE (SHANGHAI) CO.,LTD. |
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| TR01 | Transfer of patent right |