CN220377363U - High-strength composite cement-based cover plate - Google Patents
High-strength composite cement-based cover plate Download PDFInfo
- Publication number
- CN220377363U CN220377363U CN202321116950.1U CN202321116950U CN220377363U CN 220377363 U CN220377363 U CN 220377363U CN 202321116950 U CN202321116950 U CN 202321116950U CN 220377363 U CN220377363 U CN 220377363U
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- Prior art keywords
- cover plate
- strength composite
- composite cement
- steel bars
- utility
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- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000004568 cement Substances 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Sewage (AREA)
Abstract
The utility model discloses a high-strength composite cement-based cover plate, which comprises the following components: the cover plate is made of high-strength composite cement-based materials, is cuboid, and has the length of 500-1500mm, the width of 300-800mm and the thickness of 40-80mm; the design thickness of the utility model is far smaller than that of common reinforced concrete, the component volume and weight of the utility model are greatly reduced, the reduction is usually more than 30%, the transportation and installation cost can be greatly reduced, and meanwhile, the maintenance and replacement workload can be greatly reduced and the whole life cycle cost can be obviously reduced because the strength and durability of the cover plate material are improved.
Description
Technical Field
The utility model relates to the technical field of building products, in particular to a high-strength composite cement-based cover plate.
Background
When a railway is generally built, drainage and cable signal wires are generally arranged in an underdrain, and a reinforced concrete cover plate is paved above the underdrain, wherein the thickness of the reinforced concrete cover plate is generally about 80-100 mm; the reinforced concrete road ballast cover plate is paved on the railway ballast in the station yard, and the thickness of the reinforced concrete road ballast cover plate is generally about 60-80 mm.
Because the common concrete has low strength, the common concrete is easy to collide and unfilled to fall off corners in the construction process, the cover plate needs to be designed thicker, the cover plate has large self weight, the workers are difficult to carry, and the construction and the installation are inconvenient; the common concrete cementing material and the admixture are less in dosage, the cover plate is not attractive enough, and the surface is rough;
in addition, the common concrete has poor freeze-thawing resistance and salt corrosion resistance, so that the durability of the cover plate is poor; in the later use process, the damage phenomenon is serious, the later maintenance workload is large, and the maintenance cost is high.
Therefore, how to solve the disadvantages of low strength, large thickness, easy corrosion, high maintenance cost and the like of the existing cover plate becomes a problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
In view of this, the present utility model provides a high strength composite cement-based cover plate comprising:
the cover plate is made of high-strength composite cement-based materials, is cuboid, has the length of 500-1500mm and the width of 300-800mm, and has the thickness of 40mm when used for ballast cover plates and 40-80mm when used for ditch and cable ditch cover plates; and the corners around the top surface of the cover plate are provided with 3mm chamfers.
The beneficial effects of adopting above-mentioned technical scheme are: compared with the common reinforced concrete cover plate, the high-strength composite cement-based cover plate has similar manufacturing cost, greatly reduced comprehensive manufacturing cost, high strength, high durability and light weight and thin thickness. The material compression and tensile strength are multiplied, the design thickness is far smaller than that of common reinforced concrete, the component volume and weight are greatly reduced, the reduction is usually over 30%, the transportation and installation cost can be greatly reduced, meanwhile, the maintenance and replacement workload can be greatly reduced due to the remarkable improvement of the material strength and durability, and the whole life cycle cost can be obviously reduced.
Preferably, the cover plate further comprises a main stress reinforcing bar and a stirrup, the main stress reinforcing bar is arranged in the cover plate along the length direction of the cover plate, and the stirrup is arranged in the cover plate along the width direction of the cover plate.
Preferably, the main stress steel bar is located at one side of the bottom surface of the cover plate, and the stirrup is located at one side of the top surface of the cover plate.
Preferably, when the cover plate is used for a railway ballast cover plate, the main stress steel bars are steel bars with the diameter of 6 mm; when the cover plate is used for a ditch or a cable ditch cover plate, the main stress steel bars are set to be steel bars with the diameter of 8-10 mm.
Preferably, the distance between two adjacent main stressed steel bars is 80-150mm, and the distance between two adjacent stirrups is 150-200mm.
Preferably, the main stress steel bars are 15-30mm away from the bottom surface of the cover plate in the thickness direction.
Preferably, the distance between the main stressed steel bar and the end part of the stirrup and the side edge of the cover plate is not less than 20mm.
The beneficial effects of adopting above-mentioned technical scheme are: through reasonable selection and use of the reinforcing steel bars and optimal selection of position setting, the integral strength and durability of the cover plate are effectively improved, the bearing performance and the service life of the cover plate are greatly improved, and the comprehensive cost of the cover plate is reduced to the greatest extent.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic plan view of a ballast cover plate provided by the utility model;
FIG. 2 is a schematic view of the reinforcement of FIG. 1;
FIG. 3 is a side view of the A-direction and reinforcement schematic of FIG. 1;
wherein, 1-railway ballast apron, 2-main atress reinforcing bar, 3-stirrup.
FIG. 4 is a schematic view of a drain cover plate provided by the utility model;
FIG. 5 is a schematic view of the reinforcement of FIG. 4;
FIG. 6 is a side view of the steel bar reinforcement and the A-direction view of FIG. 4;
wherein, the cover plate of the 1-drainage tank, the 2-main stress steel bar and the 3-stirrup,
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.
The embodiment of the utility model discloses a high-strength composite cement-based cover plate, which comprises the following components:
the cover plate 1 is made of high-strength composite cement-based materials, the cover plate 1 is cuboid, the length is 500-1500mm, the width is 300-800mm, the thickness is 40mm when the cover plate is used for a ballast cover plate, and the thickness is 40-80mm when the cover plate is used for a ditch and a cable ditch cover plate; the corners around the top surface are provided with 3mm chamfers.
In the embodiment of the utility model, the cover plate further comprises a main stress steel bar 2 and stirrups 3, wherein the main stress steel bar 2 is arranged in the cover plate 1 along the length direction of the cover plate 1, and the stirrups 3 are arranged in the cover plate 1 along the width direction of the cover plate 1.
In the embodiment of the utility model, the main stress steel bar 2 is positioned on one side of the bottom surface of the cover plate 1, and the stirrup 3 is positioned on one side of the top surface of the cover plate 1.
In the embodiment of the utility model, the distance between two adjacent main stressed steel bars 2 is 80-150mm, and the distance between two adjacent stirrups 3 is 150-200mm.
In the embodiment of the utility model, the main stress steel bar 2 is 15-30mm away from the bottom surface of the cover plate 1 in the thickness direction.
In the embodiment of the utility model, the distance between the ends of the main stress steel bars 2 and the stirrups 3 and the side edge of the cover plate 1 is not less than 20mm.
Example 1
As shown in fig. 1, the embodiment of the utility model discloses a ballast cover plate 1, which has the length of 540mm, the width of 310mm and the thickness of 40mm; the railway ballast cover plate adopts main stress steel bars with the diameter of 6mm and hoops with the diameter of 6mm, the distance between two adjacent main stress steel bars is 135mm, the distance between two adjacent hoops is 160mm, and the distance between the main stress steel bars and the bottom surface of the cover plate is 17mm in the thickness direction;
the technical parameters of the detection method are as follows: the weight of the single block is 16kg, the maximum compressive strength is 53MPa, and the concentrated load is 3.8KN;
example 2
As shown in fig. 4, the embodiment of the utility model discloses a cover plate of a drainage tank of a railway station, which has the length of 800mm, the width of 500mm and the thickness of 60mm; the railway ballast cover plate adopts main stress steel bars with the diameter of 8mm and hoops with the diameter of 6mm, the distance between two adjacent main stress steel bars is 110mm, the distance between two adjacent hoops is 190mm, and the distance between the main stress steel bars and the bottom surface of the cover plate is 23mm in the thickness direction;
the technical parameters of the detection method are as follows: the weight of the single block is 57.6kg, the maximum compressive strength is 55MPa, and the concentrated load is 4.6KN;
comparative example 1
The ballast cover plate is a common reinforced concrete cover plate, the thickness of the cover plate is 60mm, main reinforcements with the diameter of 8mm and stirrups with the diameter of 6mm are adopted, the weight of a single block is 24.1kg, and the concrete strength C30 is achieved.
Comparative example 2
The cover plate of the drainage tank is a common reinforced concrete cover plate, the thickness of the cover plate is 80mm, the reinforcement is adopted, the weight of a single block is 76.8kg, and the concrete strength C30 is realized.
Comparing example 1 with comparative example 1 and example 2 with comparative example 2, it is clear that the high-strength composite cement-based cover plate has similar manufacturing cost and greatly reduced overall manufacturing cost, and has the characteristics of high strength, high durability, light weight and slim. The material compression and tensile strength are multiplied, the design thickness is far smaller than that of common reinforced concrete, the component volume and weight are greatly reduced, the reduction is usually over 30%, the transportation and installation cost can be greatly reduced, meanwhile, the maintenance and replacement workload can be greatly reduced due to the remarkable improvement of the material strength and durability, and the whole life cycle cost can be obviously reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A high strength composite cementitious cover sheet comprising: the cover plate (1) is made of high-strength composite cement-based materials, the cover plate (1) is cuboid, the length of the cover plate is 500-1500mm, the width of the cover plate is 300-800mm, the thickness of the cover plate (1) is 40mm when the cover plate is used for a ballast cover plate, and the thickness of the cover plate (1) is 40-80mm when the cover plate is used for a ditch and a cable trench cover plate; and the corners around the top surface of the cover plate (1) are provided with chamfer angles of 3 mm.
2. The high-strength composite cement-based cover plate according to claim 1, further comprising main stress steel bars (2) and stirrups (3), wherein the main stress steel bars (2) are arranged in the cover plate (1) along the length direction of the cover plate (1), and the stirrups (3) are arranged in the cover plate (1) along the width direction of the cover plate (1).
3. The high-strength composite cement-based cover plate according to claim 2, wherein the main stress steel bar (2) is located on one side of the bottom surface of the cover plate (1), and the stirrup (3) is located on one side of the top surface of the cover plate (1).
4. A high strength composite cement-based cover plate according to claim 2, characterized in that the main stressing reinforcement (2) is arranged as a reinforcement with a diameter of 6mm when the cover plate is used for a ballast cover plate; when the cover plate is used for a ditch or a cable ditch cover plate, the main stress steel bars (2) are steel bars with the diameter of 8-10 mm.
5. A high strength composite cementitious panel as claimed in claim 2, wherein adjacent two of said main load bearing bars (2) are spaced from 80 to 150mm and adjacent two of said stirrups (3) are spaced from 150 to 200mm.
6. A high strength composite cement based cover plate according to claim 2, wherein the main stressing reinforcement (2) is 15-30mm in thickness from the bottom surface of the cover plate (1).
7. The high-strength composite cement-based cover plate according to claim 2, wherein the distance between the ends of the main stress steel bars (2) and the stirrups (3) and the side edge of the cover plate (1) is not less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116950.1U CN220377363U (en) | 2023-05-11 | 2023-05-11 | High-strength composite cement-based cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116950.1U CN220377363U (en) | 2023-05-11 | 2023-05-11 | High-strength composite cement-based cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220377363U true CN220377363U (en) | 2024-01-23 |
Family
ID=89572581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321116950.1U Active CN220377363U (en) | 2023-05-11 | 2023-05-11 | High-strength composite cement-based cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220377363U (en) |
-
2023
- 2023-05-11 CN CN202321116950.1U patent/CN220377363U/en active Active
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