CN220908391U - Tensioning counterforce device of prestressed anti-floating anchor rod - Google Patents
Tensioning counterforce device of prestressed anti-floating anchor rod Download PDFInfo
- Publication number
- CN220908391U CN220908391U CN202322816027.5U CN202322816027U CN220908391U CN 220908391 U CN220908391 U CN 220908391U CN 202322816027 U CN202322816027 U CN 202322816027U CN 220908391 U CN220908391 U CN 220908391U
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- floating
- prestress
- bolt
- floating anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007667 floating Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 9
- 125000003003 spiro group Chemical group 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000010426 asphalt Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 5
- 239000003673 groundwater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a tensioning counterforce device of a prestressed anti-floating anchor rod, which comprises a foundation slab and a prestressed anti-floating anchor rod penetrating through the foundation slab, wherein a steel plate is assembled outside the top end of the foundation slab positioned on the prestressed anti-floating anchor rod; the lower end of the steel plate is positioned outside the prestress anti-floating anchor rod and sleeved with a steel pipe; the top end of the prestress anti-floating anchor rod is provided with a steel backing plate, and the top end of the prestress anti-floating anchor rod, which is positioned at the upper end of the steel backing plate, is provided with a finish rolling steel bar nut; the outside of the prestress anti-floating anchor rod is positioned between the steel backing plate and the steel plate and sleeved with a spiral rib; the outside of the prestress anti-floating anchor rod is provided with a prestress anchor, and the top end of the prestress anchor is provided with a water stop ring; the tensioning counterforce device of the prestressed anti-floating anchor rod is simple to operate, improves the construction efficiency, can save the construction cost and has higher popularization.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a tensioning counterforce device of a prestressed anti-floating anchor rod.
Background
The anti-floating anchor rod is an important measure for anti-floating of underground engineering, has higher economical efficiency and practicability, and can greatly reduce the construction engineering cost especially when the underground water level is higher.
The anti-floating anchor rod is an anchor rod which is arranged in a soil layer or a stratum and resists the floating action of groundwater on a building, and transmits the tensile force to a stable stratum or a soil body, and generally comprises a rod body (consisting of steel strands, reinforcing steel bars, special steel pipes and other reinforcing materials), a grouting body, an anchor device, a sleeve and a connector which can be used;
in the prior art, the anti-floating anchor rod has the unique performance of the anti-floating anchor rod, can bear tensile force, is stressed to be transmitted from the top to the bottom, and the stress of the anchor rod changes along with the change of the groundwater level, but in actual use, the problems that the use of the anchor rod reinforcing steel bar is swayed or the installation and positioning are unstable exist, so that the prior art needs to be improved.
Disclosure of utility model
The utility model aims to provide a tensioning counterforce device of a prestressed anti-floating anchor rod, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the tensioning counterforce device of the prestressed anti-floating anchor rod comprises a foundation slab and the prestressed anti-floating anchor rod penetrating through the foundation slab, wherein a steel plate is assembled outside the prestressed anti-floating anchor rod at the top end of the foundation slab;
the lower end of the steel plate is positioned outside the prestress anti-floating anchor rod and sleeved with a steel pipe;
The top end of the prestress anti-floating anchor rod is provided with a steel backing plate, and the top end of the prestress anti-floating anchor rod, which is positioned at the upper end of the steel backing plate, is provided with a finish rolling steel bar nut;
The outside of the prestress anti-floating anchor rod is positioned between the steel backing plate and the steel plate and sleeved with a spiral rib;
the outside of the prestress anti-floating anchor rod is provided with a prestress anchor, and the top end of the prestress anchor is provided with a water stop ring;
The lower extreme of foundation plate is equipped with the bed course, the screw has been seted up to bed course and steel sheet laminating department, the spiro union has the bolt main part in the screw.
Preferably, the lower extreme of bolt main part has seted up the circle recess, the bolt pole is installed to the lower extreme middle section of circle recess, and bolt pole tip spiro union in the screw, the outside spiro union of bolt pole has fastening nut.
Preferably, the outer upper end of the bolt rod is provided with a fixed ring, the circumferential surface of the bolt rod is sleeved with an annular pressing sheet, a spring and an annular rubber sheet, and the edge of the lower end of the annular pressing sheet is provided with an extrusion sheet.
Preferably, the top end of the bolt rod is provided with a socket, the inside of the socket is inserted with a fastening screw, the inner wall of the socket is provided with a reverse thread matched with the fastening screw, and the outer wall of the bolt rod is provided with grooves along the periphery of the socket.
Preferably, a sealing rubber cushion layer is arranged between the foundation slab and the prestress anchor.
Preferably, the side wall of the steel plate is provided with a paddle supplementing hole.
Preferably, the outer part of the prestress anti-floating anchor rod is provided with a reinforcing steel bar conical centering bearing body.
Preferably, the outer wall of the prestress anti-floating anchor rod is provided with an external thread, and the outer wall of the prestress anti-floating anchor rod is coated with an asphalt corrosion-resistant layer.
Compared with the prior art, the utility model has the beneficial effects that: the tensioning counterforce device of the prestressed anti-floating anchor rod is simple in structure and convenient to operate, the compressive strength and stability of the rod body are improved by arranging the steel pipe at the top end of the anti-floating anchor rod, and the purpose that the top end of the rod body is used as a prestressed tensioning support to apply prestress to the rod body before a bottom plate is poured is achieved. And then the bottom plate is poured, so that the situation of water leakage of the bottom plate caused by improper tensioning mode is avoided. Moreover, the steel pipe can be prefabricated in advance, a basin-shaped foundation is not required to be made at the anchor rod position, the steel pipe is pre-buried in advance when the anchor rod is poured, the anchor rod can be stretched after reaching the age, the operation is simple, the construction efficiency is improved, meanwhile, the construction cost can be saved, and the popularization is higher.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of part A of the present utility model;
FIG. 3 is a schematic view of a bolt body of the present utility model;
fig. 4 is a top view of the bolt body of the present utility model.
In the figure: the anti-floating prestressed anchor rod comprises a prestressed anti-floating anchor rod 1, a cushion layer 2, a foundation slab 3, a steel plate 4, a sealant cushion layer 5, a steel cushion plate 6, a finish rolling steel bar nut 7, a spiral rib 8, a water stop ring 9, a prestressed anchor device 10, a steel bar conical centering supporting body 11, a blade supplementing hole 12, a bolt main body 13, a screw hole 14, a fastening screw rod 15, a socket 16, a reverse screw thread 17 and a slot 18.
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.
Referring to fig. 1 to 4, the present utility model provides a technical solution: the tensioning counterforce device of the prestressed anti-floating anchor comprises a foundation slab 3 and the prestressed anti-floating anchor 1 penetrating through the foundation slab 3, wherein a steel plate 4 is assembled outside the prestressed anti-floating anchor 1 at the top end of the foundation slab 3;
The lower end of the steel plate 4 is positioned outside the prestress anti-floating anchor rod 1 and sleeved with a steel pipe, the prestress anti-floating anchor rod 1 is arranged in the steel pipe, the steel pipe is phi 200 x 3 x 1000, the upper end of the Q355B is welded with the steel plate, and the length of the steel pipe is required to be not less than 0.5m when entering a natural soil layer;
The top end of the prestress anti-floating anchor rod 1 is provided with a steel backing plate 6, and the top end of the prestress anti-floating anchor rod 1, which is positioned at the upper end of the steel backing plate 6, is provided with a finish rolling steel bar nut 7;
The outside of the prestress anti-floating anchor rod 1 is positioned between the steel backing plate 6 and the steel plate 4 and sleeved with a spiral rib 8;
The outside of the prestress anti-floating anchor rod 1 is provided with a prestress anchor 10, and the top end of the prestress anchor 10 is provided with a water stop ring 9;
A steel pipe with the same diameter as the anchor rod is arranged within the range of 1000mm below the joint of the top end of the anti-floating anchor rod and the bottom plate, the steel pipe needs to extend to an undisturbed soil layer of 500mm, the wall thickness of the steel pipe is 3mm, an end plate with 300mmx300mmx30mm is arranged at the top end of the steel pipe and is connected with the top end plate in a full-welded mode, the end plate is arranged on a concrete cushion layer in a base mode, and a prestress anchor device is arranged on the end plate, so that steel pipe concrete is formed at the top of the anchor rod. When the prestress is applied, the rod body at the top of the anchor rod is in a three-way compression stress state, so that the compression capacity of the rod body is greatly improved, and the compression strength and compression stability of the rod body of the anchor rod are ensured to meet the standard requirements;
The lower extreme of foundation plate 3 is equipped with bed course 2, and screw 14 has been seted up to bed course 2 and steel sheet 4 laminating department, and the spiro union has bolt main part 13 in the screw 14, fastens bed course and steel sheet through bolt main part 13, appears rocking when reducing the stock and perhaps installs the insecure problem of location.
The lower end of the bolt main body 13 is provided with a circular groove 133, a bolt rod 131 is mounted in the middle section of the lower end of the circular groove 133, the end of the bolt rod 131 is screwed into the screw hole 14, and a fastening nut 138 is screwed to the outside of the bolt rod 131.
The outer upper end of the bolt rod 131 is provided with a fixed ring 136, the circumferential surface of the bolt rod 131 is sleeved with an annular pressing sheet 134, a spring 137 and an annular rubber sheet 132, the edge of the lower end of the annular pressing sheet 134 is provided with a pressing sheet 135, the annular pressing sheet 134 is positioned on the upper side of the fixed ring 136, the spring 137 is positioned on the upper side of the annular pressing sheet 134, and the annular rubber sheet 132 is positioned on the lower side of the fixed ring 135.
The top end of the bolt rod 131 is provided with a socket 16, a fastening screw 15 is inserted into the socket 16, the inner wall of the socket 16 is provided with a reverse thread 17 matched with the fastening screw 15, and the outer wall of the bolt rod 131 is provided with grooves 18 along the periphery of the socket 16.
A sealing cushion layer 5 is arranged between the foundation slab 3 and the prestress anchor 10.
The side wall of the steel plate 4 is provided with a blade supplementing hole 12, and blade supplementing is carried out through the blade supplementing hole 12.
The outer part of the prestress anti-floating anchor rod 1 is provided with a reinforcing steel bar conical centering bearing body 11.
The outer wall of the prestress anti-floating anchor rod 1 is provided with external threads, the outer wall of the prestress anti-floating anchor rod 1 is coated with an asphalt corrosion-resistant layer, phi 32 (28) PSB930 prestress screw bars are connected by sleeves if lengthening is needed, and welding is not needed on rod bodies.
Working process and principle: the compressive strength of the rod body in a specific length below the joint of the top end of the anti-floating anchor rod and the bottom plate is enhanced, so that the pre-stress is applied to the rod body by taking the specific length of the top end of the rod body as a pre-stress tensioning support before the bottom plate is poured. After tensioning, the anchor rod body does not generate compressive damage, and the vertical and horizontal displacement of the top end of the anchor rod meet the standard requirements. The bottom plate is poured after the tensioning of the prestressed anchor rod is completed, so that the leakage of the bottom plate caused by improper tensioning mode is avoided;
A steel pipe with the same diameter as the anchor rod is arranged within the range of 1000mm below the joint of the top end of the anti-floating anchor rod and the bottom plate, the steel pipe needs to extend to an undisturbed soil layer of 500mm, the wall thickness of the steel pipe is 3mm, an end plate with 300mmx300mmx30mm is arranged at the top end of the steel pipe and is connected with the top end plate in a full-welded mode, the end plate is arranged on a concrete cushion layer in a base mode, and a prestress anchor device is arranged on the end plate, so that steel pipe concrete is formed at the top of the anchor rod. When the prestress is applied, the rod body at the top of the anchor rod is in a three-way compression stress state, so that the compression capacity of the rod body is greatly improved, and the compression strength and compression stability of the rod body of the anchor rod are ensured to meet the standard requirements.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The utility model provides a stretch-draw reaction device of prestressing force anti-floating stock, includes foundation bedplate (3) and runs through prestressing force anti-floating stock (1) to foundation bedplate (3), its characterized in that: the top end of the foundation slab (3) is positioned outside the prestress anti-floating anchor rod (1) and is provided with a steel plate (4);
The lower end of the steel plate (4) is positioned outside the prestress anti-floating anchor rod (1) and sleeved with a steel pipe;
The top end of the prestress anti-floating anchor rod (1) is provided with a steel backing plate (6), and the top end of the prestress anti-floating anchor rod (1) is positioned at the upper end of the steel backing plate (6) and is provided with a finish rolling reinforcing steel bar nut (7);
The outside of the prestress anti-floating anchor rod (1) is positioned between the steel backing plate (6) and the steel plate (4) and sleeved with a spiral rib (8);
The outside of the prestress anti-floating anchor rod (1) is provided with a prestress anchor (10), and the top end of the prestress anchor (10) is provided with a water stop ring (9);
The lower extreme of foundation plate (3) is equipped with bed course (2), screw (14) have been seted up to bed course (2) and steel sheet (4) laminating department, the spiro union has bolt main part (13) in screw (14).
2. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 1, wherein: the lower extreme of bolt main part (13) has seted up circular recess (133), bolt pole (131) are installed in the lower extreme middle section of circular recess (133), and bolt pole (131) tip spiro union is in screw (14), the outside spiro union of bolt pole (131) has fastening nut (138).
3. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 2, wherein: the outer upper end of the bolt rod (131) is provided with a fixed ring (136), the circumferential surface of the bolt rod (131) is sleeved with an annular pressing sheet (134), a spring (137) and an annular rubber sheet (132), and the edge of the lower end of the annular pressing sheet (134) is provided with a squeezing sheet (135).
4. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 2, wherein: the top of the bolt rod (131) is provided with a socket (16), the inside of the socket (16) is inserted with a fastening screw (15), the inner wall of the socket (16) is provided with a reverse thread (17) matched with the fastening screw (15), and the outer wall of the bolt rod (131) is provided with grooves (18) along the periphery of the socket (16).
5. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 1, wherein: a sealing rubber cushion layer (5) is arranged between the foundation slab (3) and the prestress anchor (10).
6. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 1, wherein: the side wall of the steel plate (4) is provided with a paddle supplementing hole (12).
7. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 1, wherein: the outside of the prestress anti-floating anchor rod (1) is provided with a reinforcing steel bar conical centering supporting body (11).
8. A tensioning reaction force device for a prestressed anti-floating bolt according to claim 1, wherein: the outer wall of the prestress anti-floating anchor rod (1) is provided with an external thread, and the outer wall of the prestress anti-floating anchor rod (1) is coated with an asphalt corrosion-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322816027.5U CN220908391U (en) | 2023-10-20 | 2023-10-20 | Tensioning counterforce device of prestressed anti-floating anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322816027.5U CN220908391U (en) | 2023-10-20 | 2023-10-20 | Tensioning counterforce device of prestressed anti-floating anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220908391U true CN220908391U (en) | 2024-05-07 |
Family
ID=90907745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322816027.5U Active CN220908391U (en) | 2023-10-20 | 2023-10-20 | Tensioning counterforce device of prestressed anti-floating anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220908391U (en) |
-
2023
- 2023-10-20 CN CN202322816027.5U patent/CN220908391U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203569582U (en) | Connecting structure of concrete pipe pile and bearing platform | |
| CN213868289U (en) | Assembly type steel structure square pipe column and beam connecting node structure | |
| CN109441016B (en) | Assembled concrete structure column steel tube sleeve joint and manufacturing method thereof | |
| CN202416260U (en) | Transverse prestressed reinforced structure of concrete aqueduct | |
| CN220908391U (en) | Tensioning counterforce device of prestressed anti-floating anchor rod | |
| CN201704954U (en) | Formwork opposite-pulling device for pouring waterproof walls | |
| CN214784243U (en) | Back-inserted unbonded steel strand U-shaped pipe pressure-bearing uplift pile | |
| CN211973855U (en) | Pipe gallery embedded part | |
| CN201250516Y (en) | Single-side wall mould holder strengthening device | |
| CN203361431U (en) | Steel bar connection structure for prefabricated parapet wall | |
| CN207959911U (en) | A kind of builder's jack gusseted | |
| CN114809118A (en) | High-pulling-resistance pressure type anti-floating anchor rod and construction method thereof | |
| CN219671419U (en) | Combined structure of garbage storage pit retaining wall | |
| CN220266850U (en) | Quick connecting device for building structural design wall post base | |
| CN208136908U (en) | A kind of uplift pile structure | |
| CN212336298U (en) | Assembled crossbeam bearing structure | |
| CN215857676U (en) | Smooth surface free section PSB finish rolling prestress anti-floating anchor rod | |
| CN114892656B (en) | Anti-floating anchor rod structure and construction process thereof | |
| CN219637823U (en) | Expansion joint department stagnant water copper reinforcement instrument | |
| CN219100824U (en) | Geopolymer concrete reinforced structure of concrete column | |
| CN219220464U (en) | Novel screw end rod anchorage for bonding end type prestressed anchor rod | |
| CN112681531B (en) | Assembled precast concrete piece square steel post and girder steel node | |
| CN219118216U (en) | Diameter-variable photovoltaic bracket spiral pile foundation | |
| CN221524246U (en) | Template support frame | |
| CN216130432U (en) | Precast concrete turn-ups component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |