CN212223979U - SS4 type auxiliary anti-floating device for underground space bearing column - Google Patents
SS4 type auxiliary anti-floating device for underground space bearing column Download PDFInfo
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- CN212223979U CN212223979U CN202021642707.XU CN202021642707U CN212223979U CN 212223979 U CN212223979 U CN 212223979U CN 202021642707 U CN202021642707 U CN 202021642707U CN 212223979 U CN212223979 U CN 212223979U
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- floating platform
- floating
- underground space
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- flexible tension
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- 238000007667 floating Methods 0.000 title claims abstract description 116
- 210000002435 tendon Anatomy 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011324 bead Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
An SS4 type auxiliary anti-floating device for an underground space bearing column belongs to the field of building structures. Comprises a flexible tension tendon, a receiving layer, a floating platform and a top magnetic layer. When the underground space water level rises, the low-density floating platform continuously rises under the action of buoyancy, and the strong magnetic connecting layer of the floating platform is tightly connected with the top magnetic layer under the action of magnetic force to generate initial pretension for the flexible tension tendon at the lower part, so that the vertical load acting on the column body is increased. The utility model discloses arrange in the cylinder outside for improve the anti floating performance of cylinder. The device of the utility model can improve the anti-floating performance of the bearing cylinder body on the premise of not changing the existing cylinder body structure; the structure does not influence the building structure during the normal service life; the device does not need manual operation, and can work and play a role in strong precipitation weather; the device manufacturing process is simple, and the installation is dismantled conveniently.
Description
Technical Field
The utility model belongs to the building structure field relates to an anti device that floats is assisted to SS4 type for underground space bearing column. The anti-floating device can improve the anti-floating performance of the bearing cylinder in the underground space and protect the underground space building.
Background
In 2019, the national housing and urban and rural construction department release a new version of the anti-floating technical standard of building engineering, and the standard improves the anti-floating engineering design standard of buildings, so the anti-floating design of building structures becomes the focus of industrial attention.
With the rapid development of economy, a large number of old underground spaces face the problem of insufficient anti-floating performance. Because the existing anti-floating prevention measures (anti-floating anchor rods, anti-floating piles and the like) cannot be used for improving the anti-floating performance of the built bearing cylinder, a simple and reliable device is urgently needed for improving the anti-floating performance of the built cylinder structure. The bearing column is a main stressed member of the building and plays a role in bearing load. The bearing column body is generally formed by pouring reinforcing steel bars and concrete, integrates the advantages of concrete compressive resistance and reinforcing steel bar tensile resistance, but has poor shear resistance and is easy to be damaged by shearing. After heavy rainfall weather takes place, the continuous lifting of underground space water level leads to building structure buoyancy that receives to constantly increase, has offset the original vertical load of bearing column body to make the cylinder take place to cut the destruction more easily. Therefore, how to increase the vertical load acting on the column body becomes an urgent problem to be solved.
In order to solve the problems, an SS4 type auxiliary anti-floating device for a bearing column of an underground space is designed. The device is directly installed in the bearing cylinder bottom, and the normal life can not produce extra load to underground space bearing cylinder. When the water level of the underground space rises in sudden heavy rainfall weather, the anti-floating performance of the bearing column body can be improved by providing additional vertical load, and the design concept of light and heavy is really realized. Supplementary anti device of floating comprises four prismoid types low density floating platform and top magnetic layer (installing in underground space roof department) that strong magnetic connecting layer was arranged at the top by flexible tension tendon, square layer of accomodating (arranging under the floating platform, link to each other with underground space bottom plate), low density floating platform is four prismoid types to link to each other with underground space bottom plate through flexible tension tendon. When the underground space water level rises, the low-density floating platform continuously rises under the buoyancy effect, and the strong magnetic connecting layer of the floating platform is tightly connected with the top magnetic layer under the action of the magnetic force to generate initial pretension for the flexible tension tendon at the lower part, so that the vertical load acting on the column body is increased, and the anti-floating performance of the column body is improved. In addition, compare in traditional anti-floating technology (counter weight method, anti-floating pile, anti-floating anchor pole etc.), the utility model discloses can directly be used for having built the bearing cylinder, improve its anti-floating performance under the prerequisite that does not change the cylinder structure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that the anti floating performance of building is not enough, provide an auxiliary anti device that floats of SS4 type for underground space bearing column, major structure comprises quadrangular prism (Square column) and quadrangular platform (Square platform), and the flexible tension tendon of the vertical support of additional 4 is referred to this system as the auxiliary anti device that floats of SS4 type for short.
In order to achieve the purpose, the utility model adopts the following technical scheme.
An SS4 auxiliary anti-floating device for a bearing column of an underground space comprises a flexible tension tendon 2, a receiving layer 9, a floating platform 5 and a top magnetic layer 7. When the underground space water level rises, the low-density floating platform 5 continuously rises under the action of buoyancy, and the high-magnetic connecting layer 6 of the floating platform is tightly connected with the top magnetic layer 7 under the action of magnetic force to generate initial pretension for the lower flexible tension tendon 2, so that the vertical load acting on the column body is increased, and the anti-floating performance of the column body is improved.
The top magnetic layer 7 is arranged on the top of the bearing cylinder 3 and fixedly connected with the underground space top plate 8.
The floating platform 5 surrounds the outer side of the bearing cylinder 3 and is not connected with the bearing cylinder 3. The floating platform 5 is of a quadrangular frustum pyramid shape, hollow glass beads 4 are filled in the floating platform, the hollow glass beads 4 are low-density and floating materials, and when the floating platform is submerged in water, the materials can provide good buoyancy and drive the flexible tension tendons 2 to float upwards. The top of the floating platform 5 is provided with a strong magnetic connecting layer 6 which is used for connecting with a top magnetic layer 7 by magnetic force.
The storage layer 9 is arranged below the floating platform 5, is connected with the underground space bottom plate 1 and is not connected with the floating platform 5. The flexible tension tendon 2 is made of Fiber Reinforced Plastic (FRP), the bottom of the FRP is connected with the underground space bottom plate 1, the top of the FRP is connected with the bottom of the floating platform 5, and the FRP is stored in the storage layer 9 in a normal state. After the floating platform 5 is connected with the top plate magnetic layer 7 through magnetic force, the flexible tension tendon 2 is used for providing downward pulling force and improving the anti-floating performance of the floating platform.
In a normal state, the device surrounds the bearing cylinder 3 without any influence on the cylinder, and the device does not enter a working state; the flexible tension tendon 2 is stored in the storage layer 9; the floating platform 5 and the top strong magnetic connecting layer 6 are positioned at the bottom of the bearing cylinder 3 by self gravity and are statically arranged on the underground space bottom plate 1.
After the heavy rainfall weather occurs, the anti-floating device enters a working state, and rises continuously along with the water level of the underground space, the floating platform 5 rises under the action of buoyancy, and drives the flexible tension tendons 2 connected with the bottom to gradually rise along the bearing cylinder 3; after the floating platform rises to a certain height, under the action of the strong magnetic connecting layer 6 and the top magnetic layer 7, the floating platform 5 rapidly moves to the underground space top plate 8 along with the strong magnetic connecting layer 6 and is tightly connected with the top magnetic layer 7 (the floating platform 5 is tightly connected with the underground space top plate 8 through the magnetic action between the strong magnetic connecting layer 6 and the top magnetic layer 7); meanwhile, the lower flexible tension tendon 2 is subjected to initial pretension (because the other end of the flexible tension tendon 2 is fixed on the underground space bottom plate 1 when being installed, downward pulling force generated by a plurality of flexible tension tendons can be transmitted to a building body): a plurality of flexible tension tendons 2 on the lower portion are tensioned, a plurality of downward pulling forces are provided for the top plate 8 of the underground space, the resultant force of the pulling forces can resist the buoyancy force borne by a part of building structure, the bearing cylinder is not easy to be sheared and damaged, the anti-floating performance of the bearing cylinder is improved, and the underground space building is protected. In the rising process of the floating platform 5, the accommodating layer 9 is fixed on the bottom plate 1 of the underground space and does not rise along with the floating platform 5.
The utility model has the advantages that:
(1) the device can be arranged on a building structure under construction and also can be arranged on the built building structure, and the anti-floating performance of the column body can be improved on the premise of not changing the existing bearing column body structure;
(2) the device does not influence the building structure during the normal service life;
(3) the device does not need manual operation, can work and play a role in strong precipitation weather, and has strong instantaneity and reliability;
(4) the device has the advantages of reasonable structural design, stable work, simple manufacturing process and convenient assembly and disassembly.
Drawings
Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.
Fig. 2 is a normal state diagram of the present invention.
Fig. 3 is a working state diagram of the present invention.
In the figure: 1 an underground space floor; 2 flexible tendon; 3 a load-bearing cylinder; 4, hollow glass beads; 5, floating platform; 6 strong magnetic connecting layer; 7 a top magnetic layer; 8 underground space roof; 9 receiving layer.
Detailed Description
In order to clearly understand the features, objects and effects of the auxiliary anti-floating device, the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the SS4 type auxiliary anti-floating device for the bearing column of the underground space comprises a flexible tension tendon 2, a receiving layer 9, a floating platform 5 and a top magnetic layer 7. When the underground space water level rises, the low-density floating platform 5 continuously rises under the action of buoyancy, and the high-magnetic connecting layer 6 of the floating platform is tightly connected with the top magnetic layer 7 under the action of magnetic force to generate initial pretension for the lower flexible tension tendon 2, so that the vertical load acting on the column body is increased, and the anti-floating performance of the column body is improved. The top magnetic layer 7 is arranged on the top of the bearing cylinder 3 and fixedly connected with the underground space top plate 8. The floating platform 5 surrounds the outer side of the bearing cylinder 3 and is not connected with the bearing cylinder 3. The floating platform 5 is of a quadrangular frustum pyramid shape, hollow glass beads 4 are filled in the floating platform, the hollow glass beads 4 are low-density and floating materials, and when the floating platform is submerged in water, the materials can provide good buoyancy and drive the flexible tension tendons 2 to float upwards. The top of the floating platform 5 is provided with a strong magnetic connecting layer 6 which is used for connecting with a top magnetic layer 7 by magnetic force. The storage layer 9 is arranged below the floating platform 5, is connected with the underground space bottom plate 1 and is not connected with the floating platform 5. When the anti-floating device is in a non-working state, the accommodating layer 9 is used for storing the flexible tension tendon 2; the anti-floating device does not rise along with the floating platform 5 when in a working state, namely when the accommodating layer 9 and the underground space bottom plate 1 are submerged by water. The flexible tension tendon 2 can stretch out and draw back, the bottom of the flexible tension tendon is connected with the underground space bottom plate 1, and the top of the flexible tension tendon is connected with the bottom of the floating platform 5. After the floating platform 5 is connected with the top plate magnetic layer 7 through magnetic force, the flexible tension tendon 2 is used for providing downward pulling force and improving the anti-floating performance of the floating platform.
The working process of the SS4 auxiliary anti-floating device for the bearing column of the underground space comprises the following steps:
as shown in fig. 2, in the normal condition, the device surrounds the load-bearing cylinder 3 without any effect on the cylinder, and the device is not put into operation; the flexible tension tendon 2 is stored in the storage layer 9; the floating platform 5 and the top strong magnetic connecting layer 6 are positioned at the bottom of the bearing cylinder 3 by self gravity and are statically arranged on the underground space bottom plate 1.
As shown in fig. 3, after the heavy rainfall weather occurs, the anti-floating device enters a working state, and the floating platform 5 rises under the action of buoyancy along with the continuous rise of the water level of the underground space and drives the flexible tension tendon 2 connected with the bottom to gradually rise along the bearing cylinder 3; when the floating platform rises to a certain height, the magnetic force between the strong magnetic connecting layer 6 and the top magnetic layer 7 plays a role, and under the action of the strong magnetic connecting layer 6 and the top magnetic layer 7, the floating platform 5 rapidly moves towards the underground space top plate 8 along with the strong magnetic connecting layer 6 and is tightly connected with the top magnetic layer 7 (the floating platform 5 is tightly connected with the underground space top plate 8 through the magnetic force between the strong magnetic connecting layer 6 and the top magnetic layer 7); at the same time, an initial pretension is generated for the lower flexible tendon 2: a plurality of flexible tension tendons 2 on the lower portion are tensioned, a plurality of downward pulling forces are provided for the top plate 8 of the underground space, the resultant force of the pulling forces can resist the buoyancy force borne by a part of building structure, the bearing cylinder is not easy to be sheared and damaged, the anti-floating performance of the bearing cylinder is improved, and the underground space building is protected. In the rising process of the floating platform 5, the accommodating layer 9 is fixed on the bottom plate 1 of the underground space and does not rise along with the floating platform 5.
The manufacture and installation of an SS4 type auxiliary anti-floating device for an underground space bearing column:
(1) the device is manufactured according to the size of the bearing column in the specific underground space, so that the bearing column can be matched with the anti-floating device.
(2) The device is convenient to install, the top magnetic layer is a square magnet consisting of two concave magnets, and the square magnet is fixed on the top plate of the underground space through a connecting rivet; the floating platform part at the bottom of the cylinder is formed by splicing two half quadrangular frustums; one end of the flexible tension tendon is fixedly connected to the bottom of the floating platform, and the other end of the flexible tension tendon is fixedly connected to the underground space bottom plate.
The above description describes the embodiments of the auxiliary anti-floating device of SS4 type for bearing column of underground space with reference to the attached drawings, but the present anti-floating device is not limited to the above embodiments, and these descriptions are only illustrative and not restrictive, and the forms may be varied without changing the core idea and without exceeding the protection scope of the claims.
Claims (1)
1. An SS4 type auxiliary anti-floating device for a bearing column of an underground space is characterized by comprising a flexible tension tendon (2), a receiving layer (9), a floating platform (5) and a top magnetic layer (7);
the top magnetic layer (7) is arranged at the top of the bearing cylinder body (3) and is fixedly connected with an underground space top plate (8);
the floating platform (5) surrounds the outer side of the bearing cylinder (3) and is not connected with the bearing cylinder (3); the floating platform (5) is of a quadrangular frustum pyramid shape, hollow glass beads (4) are filled in the floating platform, the hollow glass beads (4) are made of low-density and floating materials, and when the floating platform is submerged in water, the materials can provide buoyancy and drive the flexible tension tendon (2) to float upwards; a strong magnetic connecting layer (6) is arranged on the top of the floating platform (5);
the accommodating layer (9) is arranged below the floating platform (5), is connected with the underground space bottom plate (1) and is not connected with the floating platform (5);
the bottom of the flexible tension tendon (2) is connected with the underground space bottom plate (1), and the top of the flexible tension tendon is connected with the bottom of the floating platform (5);
under a normal state, the flexible tension tendon (2) is stored in the storage layer (9); the floating platform (5) and the top strong magnetic connecting layer (6) are positioned at the bottom of the bearing cylinder (3) by means of self gravity and are statically arranged on the underground space bottom plate (1);
after the heavy rainfall weather occurs, the water level of the underground space is continuously raised, the floating platform (5) is raised under the action of buoyancy, and the flexible tension tendon (2) is driven to rise along the bearing cylinder body (3); when the floating platform (5) rises to a certain height, the floating platform (5) moves to the top plate (8) of the underground space and is tightly connected with the top magnetic layer (7) under the action of the magnetic force of the strong magnetic connecting layer (6) and the top magnetic layer (7); meanwhile, initial pretension is generated on the lower flexible tension tendon (2) to improve the anti-floating performance of the floating platform (5); in the rising process, the containing layer (9) is fixed on the bottom plate (1) of the underground space and does not rise along with the floating platform (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021642707.XU CN212223979U (en) | 2020-08-10 | 2020-08-10 | SS4 type auxiliary anti-floating device for underground space bearing column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021642707.XU CN212223979U (en) | 2020-08-10 | 2020-08-10 | SS4 type auxiliary anti-floating device for underground space bearing column |
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| Publication Number | Publication Date |
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| CN212223979U true CN212223979U (en) | 2020-12-25 |
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| CN202021642707.XU Expired - Fee Related CN212223979U (en) | 2020-08-10 | 2020-08-10 | SS4 type auxiliary anti-floating device for underground space bearing column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926867A (en) * | 2020-08-10 | 2020-11-13 | 大连理工大学 | SS4 type auxiliary anti-floating device for underground space bearing column |
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2020
- 2020-08-10 CN CN202021642707.XU patent/CN212223979U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926867A (en) * | 2020-08-10 | 2020-11-13 | 大连理工大学 | SS4 type auxiliary anti-floating device for underground space bearing column |
| CN111926867B (en) * | 2020-08-10 | 2024-06-14 | 大连理工大学 | SS4 type auxiliary anti-floating device for underground space bearing column |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 |