CN220117775U - Positioning grid for steel strand parting - Google Patents
Positioning grid for steel strand parting Download PDFInfo
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- CN220117775U CN220117775U CN202320949042.4U CN202320949042U CN220117775U CN 220117775 U CN220117775 U CN 220117775U CN 202320949042 U CN202320949042 U CN 202320949042U CN 220117775 U CN220117775 U CN 220117775U
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- steel bars
- steel
- reinforcing
- bar
- bars
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 96
- 239000010959 steel Substances 0.000 title claims abstract description 96
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 35
- 238000003466 welding Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920006334 epoxy coating Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model relates to the technical field of engineering construction, in particular to a positioning grid for steel strand parting, which comprises a first side die and a bottom die arranged at the bottom of the first side die, wherein a grid unit is arranged at the upper part of the bottom die and comprises; the first reinforcing steel bars are vertically inserted on the bottom die, the second reinforcing steel bars are transversely inserted on the first side die and are arranged in a crossing mode with the first reinforcing steel bars, third reinforcing steel bars are further arranged at the crossing position of the first reinforcing steel bars and the second reinforcing steel bars, and the third reinforcing steel bars are perpendicular to the first reinforcing steel bars and the second reinforcing steel bars simultaneously to be connected. The first steel bars are erected on the bottom die to play a supporting role, the second steel bars are contacted with the first side die, the first steel bars and the second steel bars can be connected and fixed through welding or binding to form a grid unit, and load can be distributed on the grid unit, so that the grid unit has good stability; the prestressed steel bundles cannot be greatly deformed due to the influence of the gravity of the concrete.
Description
Technical Field
The utility model relates to the technical field of engineering construction, in particular to a positioning grid for steel strand parting.
Background
The traditional steel strand stretching adopts a double control method, namely, the design stretching force and the steel strand stretching value are controlled, and the design stretching force is mainly controlled. In order to determine the prestress effect and the prestress control of the prestress steel strands of the beam plate on the beam body, two ends of the steel strands are connected with a connector by clamping pieces, the other end of the connector is connected with finish rolling deformed steel bars, the deformed steel bars penetrate through the beam positioning plate and are fixed by nuts. And during tensioning, the length and the position of the prestressed steel strand are adjusted, and the prestressed steel strand is straightened.
Because the common prestressed beam uses low concrete labels, the pretensioned prestressed steel beam is usually set as a two-end bent line type in order to make the stress reasonable. However, the reaction force generated during the tensioning prestressing is large, so that in order to keep the bent line type, a ground anchor type reaction force pedestal with huge body quantity is often arranged, the construction investment is large, and the construction period is long. The traditional prestressed steel strand can enable concrete to be piled up at one place when concrete is poured, the prestressed steel strand can be influenced by the gravity of the concrete to generate larger deformation, if no steel bars exist in the beam, even two layers of steel strands are extruded into one layer when the steel strand is serious, the steel bar spacing greatly reduces the trafficability check of the concrete, and the phenomena of non-compact pouring, holes, separation of aggregate and slurry and the like are caused; in addition, when concrete is poured, the concrete falls on the steel strand to cause the prestress steel strand to droop, so that the stress of the prestress steel strand is seriously influenced; the prestress loss is easy to cause, the design prestress value cannot be reached after the tension is released, the problem that the prestress degree of the midspan region is insufficient and the like is caused, and potential safety hazards are brought to structural stress and stability.
Disclosure of Invention
The utility model aims to provide a positioning grid for steel strand parting, which solves the problems of deformation and non-compact pouring of steel strands in the prior art.
The embodiment of the utility model is realized by the following technical scheme:
the positioning grid for the steel strand parting comprises a first side die and a bottom die arranged at the bottom of the first side die, wherein a grid unit is arranged at the upper part of the bottom die, and the grid unit comprises;
the first steel bars are vertically inserted on the bottom die, the second steel bars are transversely inserted on the first side die and are arranged in a crossing mode with the first steel bars, third steel bars are further arranged at the crossing position of the first steel bars and the second steel bars, and the third steel bars are perpendicular to the connection arrangement of the first steel bars and the second steel bars.
In an embodiment of the utility model, the first steel bar has a U-shaped structure, and an arc top and an open bottom are provided.
In an embodiment of the present utility model, the bottom die and the first side die are both provided with through holes for plugging with the first reinforcing steel bar and the second reinforcing steel bar.
In an embodiment of the utility model, a plurality of fourth steel bars are further arranged on two sides of the bottom of the second steel bar, and two ends of the fourth steel bars are respectively inserted into the first side dies on two sides.
In an embodiment of the present utility model, a fifth reinforcing bar is vertically and horizontally connected between the fourth reinforcing bars, and the fifth reinforcing bar is simultaneously connected with the first reinforcing bar.
In an embodiment of the present utility model, the steel bar splicing device further includes two second side molds, the two second side molds are disposed at two sides of the third steel bar, and round holes for inserting the third steel bar are formed in the second side molds.
In one embodiment of the present utility model, the distance between the first plurality of reinforcing bars is 2.75-3m.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
1. the structure of the utility model is mainly characterized in that the upper part of the bottom die is provided with a grid unit, the grid unit comprises a plurality of first steel bars and second steel bars, the first steel bars are vertically inserted on the bottom die, and the second steel bars are transversely inserted on the first side die and are arranged in a crossing way with the first steel bars. The first steel bars stand on the bottom die to play a supporting role, the second steel bars are contacted with the side die, and the first steel bars and the second steel bars can be connected and fixed through welding or binding to form a grid unit, so that loads can be distributed on the grid unit, and the grid unit has good stability; the prestressed steel bundles cannot be greatly deformed due to the influence of the gravity of the concrete.
2. The phenomena of non-compactness in pouring, occurrence of holes, separation of aggregate and slurry and the like are avoided, vertical load transmitted by the horizontal support is borne, the space rigidity of the support system is enhanced, the longitudinal stability of the horizontal support is ensured, and the horizontal support has better self rigidity and smaller vertical displacement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic elevational cross-sectional view of the overall structure of the present utility model;
FIG. 2 is a side view of the present utility model;
FIG. 3 is a top view of the present utility model with a second side form;
icon: 1-first reinforcing steel bar, 2-second reinforcing steel bar, 3-third reinforcing steel bar, 4-first side die, 5-fourth reinforcing steel bar, 6-fifth reinforcing steel bar, 7-bottom die and 8-second side die.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Referring to fig. 1-3, the positioning grid for parting steel strands provided by the utility model comprises a first side die 4 and a bottom die 7 arranged at the bottom of the first side die 4, wherein a grid unit is arranged at the upper part of the bottom die 7.
Specifically, the grid unit includes a plurality of first reinforcing bar 1 and second reinforcing bar 2, first reinforcing bar 1 adopts a diameter to be 16 in this embodiment, long 183.8 centimetre's reinforcing bar preparation forms, wholly be U-shaped structure, its top circular-arc, the lower part is uncovered to be set up, its open one end is pegged graft on die block 7, play the supporting role, second reinforcing bar 2 transversely perpendicular and first reinforcing bar 1 set up, can carry out relative fixation through ligature or welding, second reinforcing bar 2's both ends are then pegged graft on first side mould 4, second reinforcing bar 2 can adopt corrosion-resistant epoxy coating reinforcing bar. The epoxy resin coating steel bar fracture should use the epoxy coating to seal the protection, and in addition, die block 7 and first side form 4 all have seted up the through-hole for peg graft with first reinforcing bar 1 and second reinforcing bar 2.
In this embodiment, the interval between each first steel bar 1 may be 2.75-3m, and a third steel bar 3 is further disposed at the intersection of the first steel bar 1 and the second steel bar 2, where the third steel bar 3 mainly plays a role in strengthening overall strength, so that the connection between the first steel bar 1 and the second steel bar 2 is more stable, specifically, the third steel bar 3 is sequentially disposed at the connection between the first steel bar 1 and the second steel bar 2 from top to bottom, and is perpendicular to the first steel bar 1 and the second steel bar 2, and may be also relatively fixed by binding or welding.
The structure of the utility model is adopted, and the structure mainly comprises a grid unit arranged at the upper part of a bottom die 7, wherein the grid unit comprises a plurality of first steel bars 1 and second steel bars 2, the first steel bars 1 are vertically inserted on the bottom die 7, and the plurality of second steel bars 2 are transversely inserted on a first side die 4 and are arranged in a crossing way with the first steel bars 1. The first steel bar 1 stands on the bottom die 7 to play a supporting role, the second steel bar 2 contacts with the side die, and the first steel bar 1 and the second steel bar 2 can be connected and fixed through welding or binding to form a grid unit, so that load can be distributed on the grid unit, and the grid unit has good stability; the prestressed steel bundles cannot be greatly deformed due to the influence of the gravity of the concrete.
In order to further strengthen the overall structure, a plurality of fourth steel bars 5 are further arranged on two sides of the bottom of the second steel bar 2, and two ends of each fourth steel bar 5 are respectively inserted into the first side dies 4 on two sides. The fifth steel bars 6 are also transversely and vertically connected between the fourth steel bars 5, the strength of a plurality of the fourth steel bars 5 can be enhanced by the fifth steel bars 6, the distance change between a plurality of the fourth steel bars 5 can be prevented as much as possible, and the intersection of the fifth steel bars 6 and the first steel bars 1 can be connected.
In addition, still include two second side forms 8, two second side forms 8 set up in the both sides of third reinforcing bar 3, and the round hole that is used for third reinforcing bar 3 grafting begins to have on the second side form 8, fixes third reinforcing bar 3.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. A positioning grid for steel strand parting, comprising a first side die (4) and a bottom die (7) arranged at the bottom of the first side die (4), wherein a grid unit is arranged at the upper part of the bottom die (7), and comprises;
a plurality of first reinforcing bar (1) and second reinforcing bar (2), first reinforcing bar (1) vertically peg graft in on die block (7), a plurality of second reinforcing bar (2) transversely peg graft with on first side form (4) to with first reinforcing bar (1) alternately set up, first reinforcing bar (1) with second reinforcing bar (2) intersection department still is provided with third reinforcing bar (3), third reinforcing bar (3) are perpendicular to first reinforcing bar (1) and second reinforcing bar (2) connection setting simultaneously.
2. The positioning grid for strand parting as set forth in claim 1, wherein the first reinforcing bar (1) has a U-shaped structure with an arc top and an open bottom.
3. The positioning grid for strand parting as set forth in claim 1, wherein the bottom mold (7) and the first side mold (4) are provided with through holes for plugging with the first reinforcing steel bar (1) and the second reinforcing steel bar (2).
4. The positioning grid for steel strand parting of claim 1, wherein a plurality of fourth steel bars (5) are further arranged on two sides of the bottom of the second steel bar (2), and two ends of the fourth steel bars (5) are respectively inserted into the first side dies (4) on two sides.
5. The positioning grid for strand parting as set forth in claim 4, wherein fifth reinforcing bars (6) are transversely and vertically connected between the fourth reinforcing bars (5), and the fifth reinforcing bars (6) are simultaneously connected with the first reinforcing bars (1).
6. The positioning grid for steel strand parting of claim 1, further comprising two second side molds (8), wherein the two second side molds (8) are arranged on two sides of the third reinforcing steel bar (3), and round holes for inserting the third reinforcing steel bar (3) are formed in the second side molds (8).
7. A positioning grid for strand splitting according to claim 5, characterized in that the distance between the first plurality of bars (1) is 2.75-3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949042.4U CN220117775U (en) | 2023-04-24 | 2023-04-24 | Positioning grid for steel strand parting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320949042.4U CN220117775U (en) | 2023-04-24 | 2023-04-24 | Positioning grid for steel strand parting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220117775U true CN220117775U (en) | 2023-12-01 |
Family
ID=88914839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320949042.4U Active CN220117775U (en) | 2023-04-24 | 2023-04-24 | Positioning grid for steel strand parting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220117775U (en) |
-
2023
- 2023-04-24 CN CN202320949042.4U patent/CN220117775U/en active Active
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