CN219864023U - Overlength does not have crack prestressing force SP board and pours ground die device - Google Patents
Overlength does not have crack prestressing force SP board and pours ground die device Download PDFInfo
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- CN219864023U CN219864023U CN202321169068.3U CN202321169068U CN219864023U CN 219864023 U CN219864023 U CN 219864023U CN 202321169068 U CN202321169068 U CN 202321169068U CN 219864023 U CN219864023 U CN 219864023U
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- 238000009415 formwork Methods 0.000 claims abstract description 29
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 50
- 239000004567 concrete Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000011513 prestressed concrete Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model provides an ultra-long crack-free prestress SP board pouring molding device; the reinforced concrete foundation comprises a foundation layer, an isolation layer and a formwork layer, wherein the isolation layer is paved on the upper side of the foundation, the formwork layer is of a reinforced concrete structure, the upper surface of the formwork layer is an operation platform, high-strength reinforcing steel bars are arranged in the formwork layer if intervention stress is conducted, the trend of the high-strength reinforcing steel bars is consistent with the length direction of the formwork layer, the high-strength reinforcing steel bars penetrate through the formwork layer, two ends of the high-strength reinforcing steel bars are anchored with two ends of the formwork layer respectively, and the formwork layer is not contacted with the foundation layer. The ultra-long crack-free prestress SP board pouring molding device can effectively control the cracking problem of the mold table by adopting high-efficiency materials such as prestress, a mold table and base layer disengaging process and other means in the preparation process.
Description
Technical Field
The utility model relates to a pouring ground die, in particular to an ultra-long crack-free prestress SP board pouring ground die device.
Background
The SP board production technology is a patent product of the American SPANCRETE company, the product is a concrete prestress structural member, and the product has the advantages of environmental protection, energy saving, sound insulation, shock resistance, flame retardance, good ductility of the SP board, large deflection before damage, high board safety and the like, and the SP board is greatly demanded in the market at present and has differentiation aiming at the size of the SP board.
The SP board is sensitive to the deformation of the mould platform in the process of processing and forming, and if the mould platform has cracks or the cracks are continuously changed in the process, the prefabricated floor slab can generate structural cracks. However, there is no casting die table with such a length (the maximum length is 160 meters), and the long-sized casting die table needs to ensure that the working surface is free from cracks, so that an ultra-long crack-free prestressed SP board casting die table is needed. Because the concrete form is sensitive to temperature, as the temperature changes, some changing cracks can occur over a certain length of the tire membrane. Considering the economical problem, an ultra-long mold table is required in combination with the production site.
In addition, the prestressed concrete hollow slab is of an integrated structure, and because the material of the prestressed concrete hollow slab is relatively large in brittleness, longitudinal cracks are very easy to generate in the hoisting process, the prefabricated structure and the cast-in-situ structure are difficult to ensure good connectivity, a long-size pouring die table structure is required to meet the SP slab pouring requirement (160 meters is required to be maximally achieved), but no long pouring die table is required at present, the long-size pouring die table is required to ensure that the working surface is free from cracks, and an ultra-long and crack-free prestressed SP slab pouring die table is also required.
The utility model with the application number of CN201610155586.8 relates to an integrated construction method for an assembled prestressed concrete hollow slab and a cast-in-situ beam, which comprises the following steps: 1) installation of a hollow slab supporting system, 2) laying of a beam bottom mould, 3) binding of beam steel bars, 4) installation of embedded parts, 5) sealing of a beam side mould, 6) hoisting of a hollow slab, 7) installation of a slab joint template, 8) casting of a cast-in-situ beam, 9) installation of a fixed steel plate and 10) casting of a concrete surface layer. However, the method for producing the prestressed concrete hollow slab does not describe the specific structure of the relevant formwork, and the method according to the patent document is not suitable for constructing a long-sized casting formwork structure.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the ultra-long crack-free prestress SP board pouring ground die device which is reasonable in structure and meets the SP board pouring requirement.
In order to solve the technical problems, the utility model provides an ultra-long crack-free prestress SP board pouring molding device;
the reinforced concrete foundation comprises a foundation layer, an isolation layer and a formwork layer, wherein the isolation layer is paved on the upper side of the foundation, the formwork layer is of a reinforced concrete structure, the upper surface of the formwork layer is an operation platform, high-strength reinforcing steel bars are arranged in the formwork layer if intervention stress is conducted, the trend of the high-strength reinforcing steel bars is consistent with the length direction of the formwork layer, the high-strength reinforcing steel bars penetrate through the formwork layer, two ends of the high-strength reinforcing steel bars are anchored with two ends of the formwork layer respectively, and the formwork layer is not contacted with the foundation layer.
As the optimization of the ultra-long crack-free prestress SP board pouring molding device, the foundation layer is of a cement soil cushion layer structure.
As the preferential choice of the super-long crack-free prestress SP board pouring molding device, felt oilpaper is selected as the isolation layer.
As the preferential casting molding device of the ultra-long crack-free prestress SP board, the length of the mold table layer is 160m.
The ultra-long crack-free prestress SP board pouring molding device has the beneficial technical effects that:
1. the prestressed high-strength steel bars are added in the die bench layer, so that the anti-cracking and anti-cracking effects can be achieved;
2. an isolation layer is added between the base layer and the mold table layer, and the mold table layer is not contacted with the base layer, so that the stress of the base layer cannot be transmitted to the mold table layer, the problem that the mold table layer is cracked due to the stress is further reduced, and the quality of the subsequent SP plate pouring molding is ensured;
3. the overlength crack-free prestress SP board pouring molding device has the length of 160m at most, can meet the pouring requirements of a great number of SP boards, and can be flexibly used according to requirements.
4. The ultra-long crack-free prestress SP board pouring molding device can effectively control the cracking problem of the mold table by adopting high-efficiency materials such as prestress, a mold table and base layer disengaging process and other means in the preparation process.
Drawings
FIG. 1 is a top view of an embodiment of the present ultra-long crack-free prestressed SP board casting molding apparatus.
FIG. 2 is a front view of an embodiment of the present ultra-long crack-free prestressed SP board casting molding apparatus.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.
The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-2.
The ultra-long crack-free prestress SP board pouring molding device comprises a base layer 1, an isolation layer 2 and a mold table layer 3.
The foundation layer 1 is a cement soil cushion layer structure, the upper end face of the foundation layer 1 is kept smooth, the isolation layer 2 is paved on the upper side of a foundation, felt oilpaper is selected as the isolation layer 2, the die table layer 3 is of a reinforced concrete structure, binding bars 31 are embedded in the die table layer 3, the upper surface of the die table layer 3 is an operation platform, a plurality of prestress high-strength bars 32 are further arranged in the die table layer 3, the trend of each prestress high-strength bar 32 is consistent with the length direction of the die table layer 3, the prestress high-strength bars 32 penetrate through the die table layer 3, and two ends of each prestress high-strength bar are respectively anchored with two ends of the die table layer 3.
The lengths of the base layer 1, the isolation layer 2 and the mold table layer 3 are 160m respectively, and the mold table layer 3 is not contacted with the base layer 1.
The formwork layer 3 can be poured by adopting a one-time pouring process, pouring operation is finished once, and the formwork layer 3 can be poured by adopting a sectional pouring or a bin-jump method, so that the stress in the concrete structure in the formwork layer 3 can be fully released, and the subsequent concrete cracking is reduced. And curing the die table layer 3 for at least 14 days after pouring is completed.
The foregoing is merely one embodiment of the utility model, and it should be noted that variations and modifications could be made by those skilled in the art without departing from the principles of the utility model, which would also be considered to fall within the scope of the utility model.
Claims (4)
1. Overlength does not have crack prestressing force SP board and pours ground die equipment, characterized by:
the reinforced concrete foundation comprises a foundation layer, an isolation layer and a formwork layer, wherein the isolation layer is paved on the upper side of the foundation, the formwork layer is of a reinforced concrete structure, the upper surface of the formwork layer is an operation platform, high-strength reinforcing steel bars are arranged in the formwork layer if intervention stress is conducted, the trend of the high-strength reinforcing steel bars is consistent with the length direction of the formwork layer, the high-strength reinforcing steel bars penetrate through the formwork layer, two ends of the high-strength reinforcing steel bars are anchored with two ends of the formwork layer respectively, and the formwork layer is not contacted with the foundation layer.
2. The ultra-long crack-free prestressed SP board casting molding device according to claim 1, characterized in that: the foundation layer is a cement soil cushion layer structure.
3. The ultra-long crack-free prestressed SP board casting molding device according to claim 1, characterized in that: the isolating layer is made of felt oiled paper.
4. The ultra-long crack-free prestressed SP board casting molding device according to claim 1, characterized in that: the length of the die table layer is 160m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321169068.3U CN219864023U (en) | 2023-05-13 | 2023-05-13 | Overlength does not have crack prestressing force SP board and pours ground die device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321169068.3U CN219864023U (en) | 2023-05-13 | 2023-05-13 | Overlength does not have crack prestressing force SP board and pours ground die device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219864023U true CN219864023U (en) | 2023-10-20 |
Family
ID=88319806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321169068.3U Active CN219864023U (en) | 2023-05-13 | 2023-05-13 | Overlength does not have crack prestressing force SP board and pours ground die device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219864023U (en) |
-
2023
- 2023-05-13 CN CN202321169068.3U patent/CN219864023U/en active Active
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