CN219930720U - Bearing large tonnage bracket structure - Google Patents
Bearing large tonnage bracket structure Download PDFInfo
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- CN219930720U CN219930720U CN202321152178.9U CN202321152178U CN219930720U CN 219930720 U CN219930720 U CN 219930720U CN 202321152178 U CN202321152178 U CN 202321152178U CN 219930720 U CN219930720 U CN 219930720U
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- bearing pin
- anchor rod
- bracket
- bearing
- concrete structure
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- 238000007789 sealing Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model provides a bearing large-tonnage bracket structure which comprises a bracket body, a bearing pin rod and an anchor rod, wherein the bearing pin rod is inserted into a bearing pin rod sleeve embedded in a concrete structure, a bearing pin post-fixing nut is arranged at the end part of the bearing pin rod sleeve, which is far away from the outer side surface of the concrete structure, the end part of the bearing pin rod sleeve, which is inserted into the bearing pin rod, is connected with the bearing pin post-fixing nut, the end part of the bearing pin rod, which is positioned outside the concrete structure, penetrates through the bracket body and is connected with the bracket body through a bearing pin rod tightening nut, the anchor rod part is embedded in the concrete structure, and the end part of the anchor rod, which is positioned outside the concrete structure, penetrates through the bracket body and is connected with the bracket body through an anchor rod tightening nut. According to the bracket main body supporting device, the bracket main body is synchronously supported through the bearing pin rod and the anchor rod, the bending moment of the bracket is borne by the anchor rod, the bearing pin rod is ensured to bear the shearing force of the bracket only, the stress is clear, and the good shearing resistance of the bearing pin rod is effectively exerted.
Description
Technical Field
The utility model relates to the technical field of bridge construction, in particular to a bearing large-tonnage bracket structure.
Background
In the bridge construction process, the construction of the capping beam is indispensable. The construction of the capping beam structure in situ usually involves the erection of a bracket, and due to the characteristics of bridge engineering, the limitation of construction topography conditions and the selection of the existing resource equipment of enterprises, the capping beam is constructed in a plurality of methods, and the capping beam is not high from the ground, and is generally cast in situ by adopting a bracket method; for the capping beam with higher height from the ground, the capping beam needs to be built by a pin method or a hoop method.
When the pin method is used for construction, a bracket is often used as a stress conversion structure. However, in the installation construction of the large-tonnage bracket, the control difficulty of the installation precision of the large-tonnage stressed bracket is high, the bracket structure is not closely attached to the concrete structure, the problem that the embedded pin is easily damaged by bending easily occurs, and the problems that the concrete at the bracket installation position is easily cracked and the stability of the bracket structure is poor are solved.
Disclosure of Invention
The utility model aims to provide a bearing large-tonnage bracket structure synchronously supported by a bearing pin rod and an anchor rod, wherein the anchor rod is used for bearing bending moment of the bracket, the bearing pin rod is only used for bearing shearing force of the bracket, the stress is definite, and the structural strength and stability of the bracket structure are ensured.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a bearing large-tonnage bracket structure, includes bracket body, bearing round pin stick and stock, the bearing round pin stick is pegged graft in burying in the bearing round pin stick sleeve pipe of concrete structure, the tip that the concrete structure lateral surface was kept away from to the bearing round pin stick sleeve pipe is equipped with bearing round pin back fixation nut, the bearing round pin stick inserts the sheathed tube tip of bearing round pin with bearing round pin back fixation nut is connected, the bearing round pin stick is located the tip outside the concrete structure passes the bracket body and screw up the nut through the bearing round pin stick with bracket body coupling, the stock part buries in the concrete structure, the stock is located the tip outside the concrete structure passes the bracket body and screw up the nut through the stock with bracket body coupling.
Further set up: the back fixing screw cap of the bearing pin is opposite to the screwing direction of the tightening screw cap of the bearing pin rod.
Further set up: the two sides of the bearing pin rear fixing nut are provided with sealing plates, and the sealing plates between the bearing pin rear fixing nut and the bearing pin sleeve are provided with insertion holes for the bearing pin to be inserted into the bearing pin rear fixing nut.
Further set up: the anchor rod comprises a pre-buried anchor rod, an extension anchor rod and an extension sleeve for connecting the pre-buried anchor rod and the extension anchor rod, wherein the pre-buried anchor rod and the extension sleeve are buried in a concrete structure, the extension anchor rod is in threaded connection with the extension sleeve, and the extension anchor rod extends out of the concrete structure and penetrates through a bracket main body.
Further set up: the end part of the embedded anchor rod, which is far away from the extension sleeve, is connected with a fastening nut buried in the concrete structure, and the rotation direction of the fastening nut is opposite to that of the extension sleeve.
Further set up: the bracket body comprises a panel, a back plate and a stiffening plate, wherein the panel is perpendicularly welded at the top of the back plate, the stiffening plate is connected with the two sides of the panel and the back plate, the back plate is attached to the surface of a concrete structure, and a pin hole and an anchor rod hole for the bearing pin rod and the anchor rod to pass through are formed in the back plate.
Further set up: the pin hole and the anchor rod hole are both positioned at the upper half part of the backboard, the pin hole and the anchor rod hole are both arranged in parallel corresponding to the left side and the right side of the backboard, and the anchor rod hole is positioned above the pin hole.
Further set up: the lower half part of the backboard is provided with a positioning hole, and the positioning hole is used for a positioning piece buried in concrete to pass through so as to position the mounting position of the bracket body.
Further set up: the locating piece is including burying the locating reinforcement in concrete structure, the locating reinforcement is close to the tip of concrete structure surface and is equipped with connecting sleeve and alternates the extension reinforcing bar that extends to outside the concrete structure in connecting sleeve, the extension reinforcing bar is used for passing the locating hole in order to fix a position the mounted position of bracket main part.
Further set up: the locating pieces are provided with two groups, and two locating holes are correspondingly formed in the backboard of the bracket main body.
Compared with the prior art, the scheme of the utility model has the following advantages:
1. according to the bearing large-tonnage bracket structure, the bearing pin rod and the anchor rod are adopted to synchronously support the bracket main body, when the bracket is stressed, the anchor rod bears the bracket bending moment, so that the bearing pin rod is ensured to bear the shearing force of the bracket only, the stress is definite, the good shearing resistance of the bearing pin rod is effectively exerted, and the conditions of cracking of a concrete structure and reduction of the bracket supporting stability caused by bending of the bearing pin rod are avoided.
2. The bearing large-tonnage bracket structure adopts the detachable mounting structure with the reserved hole type pup joint, realizes the turnover use of bearing pins, solves the problem that the existing bracket cannot be detached due to the adoption of the through type or fixed embedded type pins, reduces destructive cutting operation, reduces site construction difficulty and avoids damaging the appearance quality of a concrete structure.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of an embodiment of a load-bearing large-tonnage bracket structure of the present utility model
Fig. 2 is a front view of a bracket body in one embodiment of the load-bearing large tonnage bracket structure of the present utility model.
In the figure, 1, a bracket body; 11. a panel; 12. a back plate; 121. a pin hole; 122. an anchor rod hole; 123. positioning holes; 13. a stiffening plate; 14. reinforcing plates; 2. a bearing pin; 21. bearing pin sleeve; 22. the nut is fixed behind the bearing pin rod; 23. a sealing plate; 24. the nut is screwed up by the bearing pin rod; 3. a bolt; 31. embedding an anchor rod; 32. lengthening the anchor rod; 33. lengthening the sleeve; 34. the anchor rod is used for screwing the nut; 35. a fastening nut; 4. a positioning piece; 41. positioning reinforcing steel bars; 42. a connecting sleeve; 43. and (5) prolonging the steel bar.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Referring to fig. 1 and 2, aiming at the problems that the installation accuracy control difficulty of the current large-tonnage stressed bracket is high, the bracket structure is not closely attached to a concrete structure, and the pre-buried pin is easy to be damaged by bending, the utility model discloses a bearing large-tonnage bracket structure which comprises a bracket body 1, a bearing pin 2 and an anchor rod 3, wherein the installation position of the anchor rod 3 and the bracket body 1 is positioned above the installation position of the bearing pin 2 and the bracket body 1, the anchor rod 3 is used for bearing the bending moment born by the bracket body 1, and the bearing pin 2 is used for bearing the shearing force born by the bracket body 1, namely, the bracket structure adopts the bearing pin 2 and the anchor rod 3 to simultaneously support the bearing pin 2, so that the stress is clear, the bending defect of the bearing pin 2 is effectively solved, and the stability of the bracket structure is improved.
Specifically, the bearing pin 2 is inserted into a bearing pin sleeve 21 pre-buried in a concrete structure, the bearing pin sleeve 21 extends from the surface of the concrete structure towards the inside of the concrete structure, the end of the bearing pin sleeve 21 close to the surface of the concrete is flush with the surface of the concrete structure, the end of the bearing pin sleeve far away from the surface of the concrete structure is provided with a bearing pin rear fixing nut 22, the end of the bearing pin 2 inserted into the bearing pin sleeve 21 is connected with the bearing pin rear fixing nut 22, the end of the bearing pin 2 positioned outside the concrete structure penetrates through the bracket structure and is fixed with the bracket structure through a bearing pin tightening nut 24, and the rotating direction of the bearing pin rear fixing nut 22 is opposite to that of the bearing pin tightening nut 24, so that the moving space of the nut is reduced, and a good anti-loosening effect is achieved.
The pipe diameter of the bearing pin sleeve 21 is slightly larger than that of the bearing pin 2, the bearing pin sleeve 21 forms an installation channel of the bearing pin 2, shearing force born by the bracket body 1 is transferred to the bearing pin 2, the bearing pin 2 transfers the stress to the bearing pin sleeve 21, and finally the bearing pin sleeve 21 transfers the shearing force born by the bearing pin 2 to a concrete structure.
The end part of the bearing pin sleeve 21, which is positioned in the concrete structure, is provided with a bearing pin rear fixing nut 22 fixed with the bearing pin 2, both sides of the bearing pin rear fixing nut 22 are provided with sealing plates 23, the four are welded into a whole according to the sequence of the sealing plates 23, the bearing pin rear fixing nut 22, the sealing plates 23 and the bearing pin sleeve 21, and simultaneously, a jack is formed in the sealing plate 23 between the bearing pin rear fixing nut 22 and the bearing pin sleeve 21, and the size of the jack is matched with the size of the bearing pin 2. By arranging the sealing plates 23 on the two sides of the bearing pin post-fixing nut 22, the tightness of the bearing pin sleeve 21 and the bearing pin post-fixing nut 22 can be ensured, and concrete is prevented from entering the bearing pin sleeve 21 and the bearing pin post-fixing nut 22 when a concrete structure is poured.
The anchor rod 3 is arranged above the bearing pin rod 2, the anchor rod 3 comprises an embedded anchor rod 31, an extension anchor rod 32 and an extension sleeve for connecting the embedded anchor rod 31 and the extension sleeve, the extension sleeve is embedded in a concrete structure and is internally provided with internal threads, one end of the embedded anchor rod 31 is inserted into the extension sleeve and is in threaded connection with the extension sleeve, the extension anchor rod 32 is inserted into the other end of the extension sleeve and is in threaded connection with the extension sleeve, the extension anchor rod 32 is used for prolonging the length of the anchor rod 3, and the end part of the extension anchor rod 32, which is not connected with the extension sleeve, extends out of the concrete structure to penetrate through the bracket body 1 and is fixed with the bracket body through an anchor rod tightening nut 34. In addition, the end of the embedded anchor rod 31 far away from the extension sleeve is connected with the fastening nut 35 embedded in the concrete structure, and the rotation direction of the fastening nut 35 is opposite to that of the extension sleeve, so that the loosening of the embedded anchor rod 31 caused by screwing the extension anchor rod 32 can be avoided when the extension anchor rod 32 is connected, and the structural stability of the anchor rod 3 is ensured.
In addition, the ends of the bearing pin sleeve 21 and the extension sleeve 33 in this embodiment are flush with the concrete surface, so that the bracket body 1 can be attached to the concrete surface to ensure that the bearing pin 2 is only subjected to the shearing force transmitted by the bracket body.
The bracket body 1 comprises a panel 11, a back plate 12 and a stiffening plate 13, wherein the panel 11 is vertically arranged at the top of the back plate 12, the back plate 12 is attached to a concrete structure, and rib plates are connected to two sides of the panel 11 and the back plate 12 so as to strengthen the structural strength between the panel 11 and the back plate 12. In addition, reinforcing plates 14 may be disposed between the stiffening plates 13 of the back plate 12 to further improve the structural strength of the bracket body 1.
The back plate 12 is provided with a pin hole 121 and an anchor rod hole 122, the pin hole 121 and the anchor rod hole 122 are located at the upper half part of the back plate 12, and the load-bearing pin 2 and the anchor rod 3 can correspondingly pass through the pin hole 121 and the anchor rod hole 122 on the back plate 12 and then are screwed and fixed by the load-bearing pin screwing nut 24 and the anchor rod screwing nut 34 respectively. As a further preferred embodiment, two groups of the bearing pins 2 and the anchor rods 3 are provided, and the pin holes 121 and the anchor rod holes 122 on the back plate 12 are provided in parallel, and are respectively located on the left and right sides of the back plate 12. The bracket body 1 is supported by the two groups of bearing pin rods 2 and the anchor rods 3, so that the strength and the stability of the bracket structure are ensured.
In addition, a positioning hole 123 is formed in the lower half portion of the back plate 12, and the bracket body 1 is matched with the positioning piece 4 of the embedded concrete structure through the positioning hole 123 to accurately position the mounting position of the bracket body 1. The positioning piece 4 comprises a positioning steel bar 41 buried in a concrete structure, a connecting sleeve 42 is arranged on the surface, close to the concrete structure, of the positioning steel bar 41, and the positioning hole 123 of the bracket body 1 is penetrated by an extension steel bar 43 inserted into the connecting sleeve 42 and extending out of the concrete structure, so that the bracket body 1 is positioned.
Further, in this embodiment, two groups of positioning members 4 are disposed on the concrete structure according to the actual construction condition, and two positioning holes 123 are correspondingly disposed on the bracket body 1, which is conducive to improving the installation accuracy of the bracket body and ensuring that the bracket structure of the present utility model meets the construction requirements.
In summary, the bearing large-tonnage bracket structure adopts the bearing pin 2 and the anchor rod 3 to synchronously support the bracket main body, when the bracket is stressed, the bracket bending moment is borne by the anchor rod 3, so that the bearing pin 2 only bears the shearing force of the bracket, the stress is clear, the good shearing resistance of the bearing pin 2 is effectively exerted, and the conditions of cracking of the concrete structure and reduction of the bracket supporting stability caused by bending of the bearing pin 2 are avoided. In addition, the bracket structure adopts the detachable mounting structure of the reserved hole type pup joint, so that the turnover use of the bearing pin rod 2 is realized, the problem that the existing bracket cannot be detached due to the adoption of a through type or fixed embedded type pin rod is solved, destructive cutting operation is reduced, the site construction difficulty is reduced, and the damage to the appearance quality of the concrete structure is avoided.
The foregoing is only a partial embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A bearing large-tonnage bracket structure is characterized in that: the anchor rod is inserted into a bearing pin sleeve buried in a concrete structure, a bearing pin rear fixing nut is arranged at the end part of the bearing pin sleeve, which is far away from the outer side surface of the concrete structure, the bearing pin is inserted into the end part of the bearing pin sleeve and is connected with the bearing pin rear fixing nut, the end part of the bearing pin, which is located outside the concrete structure, penetrates through the bracket body and is connected with the bracket body through a bearing pin tightening nut, the anchor rod is buried in the concrete structure, and the end part of the anchor rod, which is located outside the concrete structure, penetrates through the bracket body and is connected with the bracket body through an anchor rod tightening nut.
2. The load-bearing large tonnage bracket structure according to claim 1, characterized in that: the back fixing screw cap of the bearing pin is opposite to the screwing direction of the tightening screw cap of the bearing pin rod.
3. The load-bearing large tonnage bracket structure according to claim 1, characterized in that: the two sides of the bearing pin rear fixing nut are provided with sealing plates, and the sealing plates between the bearing pin rear fixing nut and the bearing pin sleeve are provided with insertion holes for the bearing pin to be inserted into the bearing pin rear fixing nut.
4. The load-bearing large tonnage bracket structure according to claim 1, characterized in that: the anchor rod comprises a pre-buried anchor rod, an extension anchor rod and an extension sleeve for connecting the pre-buried anchor rod and the extension anchor rod, wherein the pre-buried anchor rod and the extension sleeve are buried in a concrete structure, the end part of the pre-buried anchor rod is inserted into one end of the extension sleeve and is in threaded connection with the extension sleeve, the extension anchor rod is in threaded connection with the other end of the extension sleeve, and the extension anchor rod extends out of the concrete structure and penetrates through the bracket body.
5. The load-bearing large tonnage bracket structure according to claim 4, wherein: the end part of the embedded anchor rod, which is far away from the extension sleeve, is connected with a fastening nut buried in the concrete structure, and the rotation direction of the fastening nut is opposite to that of the extension sleeve.
6. The load-bearing large tonnage bracket structure according to claim 1, characterized in that: the bracket body comprises a panel, a back plate and a stiffening plate, wherein the panel is perpendicularly welded at the top of the back plate, the stiffening plate is connected with the two sides of the panel and the back plate, the back plate is attached to the surface of a concrete structure, and a pin hole and an anchor rod hole for the bearing pin rod and the anchor rod to pass through are formed in the back plate.
7. The load-bearing large tonnage bracket structure according to claim 6, wherein: the pin hole and the anchor rod hole are both positioned at the upper half part of the backboard, the pin hole and the anchor rod hole are both arranged in parallel corresponding to the left side and the right side of the backboard, and the anchor rod hole is positioned above the pin hole.
8. The load-bearing large tonnage bracket structure according to claim 7, wherein: the lower half part of the backboard is provided with a positioning hole, and the positioning hole is used for a positioning piece buried in concrete to pass through so as to position the mounting position of the bracket body.
9. The load-bearing large tonnage bracket structure according to claim 8, wherein: the locating piece is including burying the locating reinforcement in concrete structure, the locating reinforcement is close to the tip of concrete structure surface and is equipped with connecting sleeve and alternates the extension reinforcing bar that extends to outside the concrete structure in connecting sleeve, the extension reinforcing bar is used for passing the locating hole in order to fix a position the mounted position of bracket body.
10. The load-bearing large tonnage bracket structure according to claim 9, wherein: the locating pieces are provided with two groups, and two locating holes are correspondingly formed in the backboard of the bracket body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321152178.9U CN219930720U (en) | 2023-05-12 | 2023-05-12 | Bearing large tonnage bracket structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321152178.9U CN219930720U (en) | 2023-05-12 | 2023-05-12 | Bearing large tonnage bracket structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219930720U true CN219930720U (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321152178.9U Active CN219930720U (en) | 2023-05-12 | 2023-05-12 | Bearing large tonnage bracket structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219930720U (en) |
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2023
- 2023-05-12 CN CN202321152178.9U patent/CN219930720U/en active Active
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