CN215715448U - Assembled flat foundation connected by three-dimensional prestressed cable net - Google Patents
Assembled flat foundation connected by three-dimensional prestressed cable net Download PDFInfo
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- CN215715448U CN215715448U CN202120464423.4U CN202120464423U CN215715448U CN 215715448 U CN215715448 U CN 215715448U CN 202120464423 U CN202120464423 U CN 202120464423U CN 215715448 U CN215715448 U CN 215715448U
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- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides an assembled flat foundation that three-dimensional prestressed cable net connects belongs to structural engineering technical field. The assembled flat foundation comprises a plurality of foundation modules and a plurality of prestressed inhaul cables; the base modules are combined into a rectangular module, the rectangular module is provided with a plurality of inhaul cable channels extending along a first direction and a second direction, the inhaul cable channels are all positioned between the top surface and the bottom surface, and the first direction and the second direction are two directions which are vertical to each other; each cable channel comprises a first section, a second section and a third section which are sequentially connected, the second section is parallel to the top surface of the rectangular module, the extending direction of one end of each of the first section and the third section, which is far away from the second section, is intersected with the plane where the bottom surface of the rectangular module is located, and the intersection point of the extending direction and the plane is located outside the bottom surface; each cable channel is provided with a prestressed cable, and two ends of the prestressed cable extend out of the cable channel. The assembled flat foundation can obviously improve the stress performance of the assembled flat foundation in the vertical direction.
Description
Technical Field
The utility model relates to a structural engineering technical field, in particular to assembled flat foundation that three-dimensional prestressed cable net connects.
Background
The foundation refers to a bearing structure below the ground of a building, such as a foundation pit, a bearing platform, a frame column, a ground beam and the like. Is an enlarged part of the wall or column of the building in the ground, which is used to bear the load transferred from the superstructure of the building and transfer them to the foundation together with the self-weight. The foundation bears the entire load of the house and should therefore have sufficient strength, while at the same time the foundation should meet the durability requirements. If the foundation fails before the superstructure, inspection and reinforcement is difficult and the life of the building construction is affected.
The related art shows an assembled flat foundation connected by prestressed cables, which consists of a plurality of foundation modules and a plurality of prestressed cables, wherein the foundation modules are assembled into a flat plate on the same plane, a plurality of holes are reserved in the flat plate, the axis of each hole is a straight line, after the foundation templates are assembled and molded, the prestressed cables penetrate through the reserved holes and apply prestressed stress to enable the foundation modules to form a whole, so that the stress integrity of the foundation modules is ensured.
However, the assembled flat foundation can only ensure the integrity of each foundation module in the flat plane, and when the flat plate is subjected to a vertical acting force, the stress performance is poor, and deformation (such as middle protrusion or depression) is easy to generate, so that the structure on the flat plane fails.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides an assembled flat foundation connected by a three-dimensional prestressed cable net, which can remarkably improve the stress performance of the assembled flat foundation in the vertical direction, thereby reducing the risk of structural failure on a plane. The technical scheme is as follows:
the embodiment of the disclosure provides an assembled flat foundation connected by a three-dimensional prestressed cable net, which comprises a plurality of foundation modules and a plurality of prestressed cables;
the plurality of base modules are combined into a rectangular module, the rectangular module is provided with a top surface and a bottom surface which are oppositely arranged, the rectangular module is provided with a plurality of inhaul cable channels which extend along a first direction and a second direction, the inhaul cable channels are all positioned between the top surface and the bottom surface, and the first direction is intersected with the second direction;
each inhaul cable channel comprises a first section, a second section and a third section which are sequentially connected, the second section is parallel to the top surface of the rectangular module, the extending direction of one end, far away from the second section, of each first section and one end, far away from the second section, of each third section are intersected with the plane where the bottom surface of the rectangular module is located, and the intersection point of the extending directions is located outside the bottom surface;
each cable channel is provided with one prestressed cable, and two ends of each prestressed cable extend out of the cable channel.
Optionally, the included angle between the first section and the second section is α 1, 30 ° ≦ α 1 ≦ 45 °, and the included angle between the third section and the second section is α 2, 30 ° ≦ α 2 ≦ 45 °.
Optionally, α 1 ═ α 2 ═ 40 °.
Optionally, a plurality of cable channels extending in the same direction are arranged at equal intervals.
Optionally, in a plurality of cable channels extending in the same direction, the shortest distance from the cable channel located at the outermost edge to the side surface of the rectangular module is greater than or equal to 50 mm.
Optionally, the shortest distance from each cable channel to the top surface or the bottom surface of the rectangular module is greater than or equal to 50 mm.
Optionally, the plurality of base modules are all identical in structure.
Optionally, the plurality of base modules comprises at least one of a cube module and a cuboid module.
Optionally, the base module is a reinforced concrete module.
Optionally, the prestressed stay cable is a steel strand.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
through providing an assembled flat foundation, make up into a rectangle module by a plurality of basic modules, and have a plurality of cable passageways on the rectangle module, a plurality of cable passageways set up along two directions of mutually perpendicular, can form three-dimensional prestressing cable net, guarantee a plurality of basic module's an organic whole nature. And the extending direction of one end of the first section and the third section of each inhaul cable channel, which are far away from the second section, is intersected with the plane where the bottom surface of the rectangular module is located, and the intersection point is located on the bottom surface. Therefore, when the prestressed cable passes through the cable channel and is applied with pretension, the two ends of the prestressed cable generate pulling force towards the bottom surface of the rectangular module, so that the middle part of the rectangular module generates upward acting force towards the top surface of the rectangular module. When the top surface of the rectangular module is subjected to downward acting force, the generated upward acting force can offset the received downward acting force, the rectangular module is prevented from deforming, the stress performance of the assembled flat plate foundation in the vertical direction can be obviously improved, and the risk of structural failure on the assembled flat plate foundation plane is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is an axial view of an assembled flat foundation connected by a three-dimensional prestressed cable network according to an embodiment of the present disclosure;
FIG. 2 is a front view of an assembled flat foundation connected by a three-dimensional prestressed cable net according to an embodiment of the present disclosure;
fig. 3 is a top view of an assembled flat foundation connected by a three-dimensional prestressed cable network according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is an axial view of a prefabricated flat foundation connected by a three-dimensional prestressed cable network according to an embodiment of the present disclosure, and as shown in fig. 1, a prefabricated flat foundation 100 includes a plurality of foundation modules 10 and a plurality of prestressed cables 20.
A plurality of base modules 10 are combined into a rectangular module M having a top surface M1 and a bottom surface M2 disposed opposite to each other. The rectangular module M has a plurality of cable passages S extending in a first direction x and a second direction y. The plurality of cable channels S are located between the top surface M1 and the bottom surface M2, and the first direction x and the second direction y are two directions perpendicular to each other.
In the embodiments of the present disclosure, the combination refers to the same layer splicing.
Fig. 2 is a front view of an assembled flat foundation connected by a three-dimensional prestressed cable net according to an embodiment of the present disclosure, and as shown in fig. 2, each cable channel S includes a first section S1, a second section S2, and a third section S3 connected in sequence. The second segment S2 is parallel to the top surface M1 of the rectangular module M, and the extending direction of the ends of the first segment S1 and the third segment S3 far from the second segment S2 intersects the plane of the bottom surface M2 of the rectangular module M and the intersection point is located outside the bottom surface M2.
As shown in fig. 1 and 2, each cable channel S has a prestressed cable 20 therein, and both ends of the prestressed cable 20 extend out of the cable channel S from the side of the rectangular module M and are located outside the rectangular module M. Wherein the rectangular module M includes four sides between the top surface M1 and the bottom surface M2.
The embodiment of the disclosure provides an assembled flat foundation, which is formed by combining a plurality of foundation modules into a rectangular module, wherein the rectangular module is provided with a plurality of cable channels, and the cable channels are arranged along two mutually perpendicular directions, so that a three-dimensional prestressed cable net can be formed, and the integrity of the foundation modules is ensured. And the extending direction of one end of the first section and the third section of each inhaul cable channel, which are far away from the second section, is intersected with the plane where the bottom surface of the rectangular module is located, and the intersection point is located on the bottom surface. Therefore, when the prestressed cable passes through the cable channel and is applied with pretension, the two ends of the prestressed cable generate pulling force towards the bottom surface of the rectangular module, so that the middle part of the rectangular module generates upward acting force towards the top surface of the rectangular module. When the top surface of the rectangular module is subjected to downward acting force, the generated upward acting force can offset the received downward acting force, the rectangular module is prevented from deforming, the stress performance of the assembled flat plate foundation in the vertical direction can be obviously improved, and the risk of structural failure on the assembled flat plate foundation plane is reduced.
In one implementation of the disclosed embodiment, the plurality of foundation modules 10 are all identical in structure to facilitate construction and manufacture.
In another implementation manner of the embodiment of the present disclosure, the plurality of base modules 10 have different structures, and may be further divided into reasonable modules according to the overall size requirement of the base structure in the design drawing.
Optionally, the plurality of base modules 10 includes at least one of a cube module and a cuboid module.
Illustratively, as shown in fig. 1, the rectangular module M in fig. 1 is composed of 12 basic modules, wherein the 12 basic modules include 4 cubes 11 and 8 cubes 12, the 4 cubes 11 constitute a small square module, and the 8 cubes 12 are arranged around the 4 cubes 11, finally forming the rectangular module M.
The 4 cubes 11 have the same size and are all of a 2000mm (length) × 2000mm (width) × 850mm (height) cube structure. The 8 cuboids 12 include four dimensions: a rectangular parallelepiped structure of 2000mm (length) x 1000mm (width) x 850mm (height), and four dimensions: a rectangular parallelepiped structure of 3000mm (length) × 1000mm (width) × 850mm (height).
If the size of each base module 10 is too large, it causes difficulty in transportation and installation, and if the size of each base module 10 is too small, it increases the frequency of installation. The specific size needs to be reasonably divided according to the actual size.
Optionally, the foundation module 10 is a reinforced concrete module to ensure the structural strength of the foundation module.
Optionally, the prestressed stay 20 is a steel strand.
Illustratively, the plurality of prestressed tension cables 20 are the same size, and each prestressed tension cable 20 has a diameter Φ 15.2 and a strength rating 1860. The breaking force of the single prestressed stay 20 is 260 KN.
As shown in fig. 1, in the presently disclosed embodiment, the rectangular module M has 4 first cable channels Sx extending in the first direction x and 4 second cable channels Sy extending in the second direction y.
In the first direction x, the breaking force of the 4 first cable channels Sx is 1040KN, and in the second direction y, the breaking force of the 4 second cable channels Sy is 1040 KN.
Alternatively, referring to FIG. 2, the included angle between the first segment S1 and the second segment S2 is α 1, 30 ≦ α 1 ≦ 45, and the included angle between the third segment S3 and the second segment S2 is α 2, 30 ≦ α 2 ≦ 45.
If the inclination angle of the first segment S1 or the third segment S3 with respect to the second segment S2 is less than 30 °, a restoring force in the opposite direction to the dislocation direction cannot be generated, thereby significantly improving the force-receiving performance of the assembled flat plate foundation in the vertical direction. If the inclination angle of the first segment S1 or the third segment S3 is larger than 45 ° with respect to the second segment S2, a large upward force is generated in the middle of the rectangular module M toward the top surface of the rectangular module, which causes the middle of the rectangular module to arch and deform.
Exemplarily, α 1 ═ α 2 ═ 40 °. At this time, the effect of improving the stress performance of the assembled flat foundation in the vertical direction is the best.
Fig. 3 is a top view of an assembled flat foundation connected by a three-dimensional prestressed cable network provided by an embodiment of the present disclosure, and as shown in fig. 3, a plurality of cable channels S having the same extending direction are arranged at equal intervals to ensure uniform stress of a rectangular module M.
Illustratively, in the same extending direction, the intervals d between any two adjacent cable channels S are all equal. And the value of d should not be too large or too small. If d is too large, the integrity of stress of each basic module cannot be ensured. If d is too small, the number of the prestressed cables 20 required is large, which increases the cost.
Optionally, the shortest distance from the cable channel S located at the outermost edge to the side surface of the rectangular module M in the plurality of cable channels S extending in the same direction is greater than or equal to 50 mm. The thickness of the rectangular module M between the side surfaces of the edge-most inhaul cable channel S and the rectangular module M can be guaranteed to be thick enough, so that the prestressed inhaul cable 20 in the inhaul cable channel S can be prevented from being damaged when the inhaul cable 20 is shaken left and right in the horizontal direction.
Optionally, the shortest distance from each cable channel S to the top surface M1 or the bottom surface M2 of the rectangular module M is greater than or equal to 50 mm. At this time, the thickness of the rectangular module M between each cable channel S and the top surface M1 or the bottom surface M2 of the rectangular module M can be ensured to be thick enough, so that the prestressed cable 20 in the cable channel S can be prevented from being damaged to the top surface M1 or the bottom surface M2 of the rectangular module M when swaying vertically.
In a specific use, a plurality of prestressed cables 20 may be prestressed by using a prestressed tensioning device such as a jack.
Alternatively, a pretension may be applied from both ends of each of the prestressing cables 20, or one end of each of the prestressing cables 20 may be fixed and a pretension may be applied to the other end of each of the prestressing cables 20.
For better understanding of the present disclosure, the present disclosure provides an assembling method of a three-dimensional prestressed cable net connected fabricated slab foundation, which comprises the following steps:
in an implementation manner of the embodiment of the present disclosure, a plurality of base modules 10 may be first spliced on the same layer to form a rectangular module M, and a plurality of cable channels S are formed in the rectangular module M. Then, adopt an appurtenance again, penetrate a plurality of prestressing force cable 20 respectively in a plurality of cable passageways S, make all worn a prestressing force cable 20 in every cable passageway S, and prestressing force cable 20' S both ends stretch out cable passageway S from the side of rectangle module M.
Wherein, the auxiliary tool can be a steel wire, an iron wire and the like which are matched with the shape of the inhaul cable channel S. When the steel cable is used specifically, one end of the prestressed cable 20 can be tightly wound on one end of the steel wire or iron wire, and then the steel wire or iron wire is extended into the cable channel S from one end of the cable channel S, and the steel wire or iron wire is gradually moved until one end of the steel wire or iron wire is extended from the other end of the cable channel S and completely passes through the cable channel S. At this time, the prestressed cable 20 is inserted into the corresponding cable passage S.
In another implementation manner of the embodiment of the present disclosure, the plurality of base modules 10 may be placed on the same layer, and then the prestressed cables 20 are used to pass through the cable channels S of the plurality of base modules 10 one by one until the plurality of prestressed cables 20 pass through the corresponding cable channels S respectively. And finally, tensioning the two ends of each cable channel S to enable the plurality of basic modules 10 to be gathered to form the rectangular module M.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (10)
1. The assembled flat foundation connected by the three-dimensional prestressed cable net is characterized in that the assembled flat foundation (100) comprises a plurality of foundation modules (10) and a plurality of prestressed cables (20);
the plurality of base modules (10) being combined into a rectangular module (M) having opposing top (M1) and bottom (M2) surfaces, the rectangular module (M) having a plurality of cable channels (S) extending in first (x) and second (y) directions, the cable channels (S) each being located between the top (M1) and bottom (M2) surfaces, the first direction (x) intersecting the second direction (y);
each cable channel (S) comprises a first section (S1), a second section (S2) and a third section (S3) which are connected in sequence, the second section (S2) is parallel to the top surface (M1) of the rectangular module (M), the extending direction of one end, far away from the second section (S2), of the first section (S1) and the third section (S3) is intersected with the plane where the bottom surface (M2) of the rectangular module (M) is located, and the intersection point is located outside the bottom surface (M2);
each cable channel (S) is provided with one prestressed cable (20), and two ends of each prestressed cable (20) extend out of the cable channel (S).
2. The prefabricated flat foundation of claim 1, wherein the included angle between the first section (S1) and the second section (S2) is α 1, 30 ° ≦ α 1 ≦ 45 °, and the included angle between the third section (S3) and the second section (S2) is α 2, 30 ° ≦ α 2 ≦ 45 °.
3. The assembly flat foundation of claim 2 wherein α 1- α 2-40 °.
4. The fabricated flat foundation according to claim 1, wherein the plurality of cable passages (S) extending in the same direction are equidistantly spaced.
5. The fabricated flat bed foundation according to claim 4, wherein the shortest distance from the cable channel (S) located at the outermost edge to the side surface of the rectangular module (M) among the cable channels (S) having the same extending direction is 50mm or more.
6. Fabricated flat foundation according to claim 5, wherein the shortest distance of each cable channel (S) to the top (M1) or bottom (M2) of the rectangular module (M) is equal to or greater than 50 mm.
7. Assembly type flat foundation according to any of claims 1 to 6, wherein the plurality of foundation modules (10) are all structurally identical.
8. The prefabricated flat foundation of any one of claims 1 to 6, wherein said plurality of foundation modules (10) comprises at least one of a cube module and a cuboid module.
9. Assembly type flat foundation according to any of claims 1 to 6, wherein the foundation modules (10) are reinforced concrete modules.
10. Assembly type flat foundation according to any of claims 1 to 6, wherein the pre-stressed cables (20) are steel strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464423.4U CN215715448U (en) | 2021-03-03 | 2021-03-03 | Assembled flat foundation connected by three-dimensional prestressed cable net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464423.4U CN215715448U (en) | 2021-03-03 | 2021-03-03 | Assembled flat foundation connected by three-dimensional prestressed cable net |
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| Publication Number | Publication Date |
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| CN215715448U true CN215715448U (en) | 2022-02-01 |
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|---|---|---|---|
| CN202120464423.4U Active CN215715448U (en) | 2021-03-03 | 2021-03-03 | Assembled flat foundation connected by three-dimensional prestressed cable net |
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- 2021-03-03 CN CN202120464423.4U patent/CN215715448U/en active Active
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