CN221167420U - Prestressed corbel anchoring structure for concrete bridge - Google Patents
Prestressed corbel anchoring structure for concrete bridge Download PDFInfo
- Publication number
- CN221167420U CN221167420U CN202323154956.0U CN202323154956U CN221167420U CN 221167420 U CN221167420 U CN 221167420U CN 202323154956 U CN202323154956 U CN 202323154956U CN 221167420 U CN221167420 U CN 221167420U
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- stress
- roof
- corbel
- diameter
- prestressed
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- 238000004873 anchoring Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002991 molded plastic Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a prestressed corbel anchoring structure for a concrete bridge, which is applied to the field of anchoring structures and comprises a stress roof, wherein a fixed cylinder is integrally injection-molded at the bottom of the stress roof, an anchor rod is arranged at the top of the stress roof in a penetrating way, the other end of the anchor rod extends to the bottom of the fixed cylinder and is provided with a stress base, a first fixing nut is connected with the surface of the anchor rod in a threaded way, a stress outer cylinder is arranged at the bottom of the stress roof, four threaded rods are welded at the top of the stress outer cylinder in an equidistant way, the other end of each threaded rod extends to the top of the stress roof, and a second fixing nut is connected with the surface of each threaded rod in a threaded way; the anti-tensile device has the advantages that the anti-tensile effect is good, the stress between the anti-tensile device and the poured concrete is increased, the stability is high, the anti-tensile device can be conveniently replaced after the anchor rod is damaged, the poured concrete is not required to be damaged, and the working efficiency of workers is improved.
Description
Technical Field
The utility model relates to the field of anchoring structures, in particular to a prestressed corbel anchoring structure for a concrete bridge.
Background
Along with the development of economy and the improvement of the living standard of people, the foundation construction industry of China develops very fast, and a plurality of buildings are built, wherein the bridge needs to be reinforced through an anchoring structure in the construction process, so that the bridge beam is safer in use.
At present, the Chinese utility model with the bulletin number of CN202359556U discloses an efficient and firm anchoring structure. The utility model aims to provide an efficient and firm anchoring structure which is simple in structure, convenient to use and relatively low in cost, so that the defects that a pure expansion bolt is not shock-proof and waterproof and a screw rod cannot be positioned immediately in anchoring agent planting and anchoring are overcome, and the underwater anchoring construction efficiency and the anchoring reliability are improved. The technical scheme of the utility model is as follows: an efficient and firm anchoring structure, which is used on an underwater concrete foundation, and is characterized in that: the anchoring structure comprises an expansion bolt and an underwater anchoring agent, wherein an expansion pipe and a screw rod of the expansion bolt are inserted into an anchoring bolt hole formed in a concrete foundation, the underwater anchoring agent is injected into the anchoring bolt hole, and a gasket is sleeved on the screw rod exposed out of the hole and is provided with a nut. The utility model is suitable for effective anchoring in general environment, and can realize reliable anchoring construction in humid and underwater environment.
The existing anchoring structure can improve reliable construction in wet and underwater environments by adding a resin anchoring agent outside, but has other problems in the use process, such as poor tensile strength, the expansion pipe is vertical after being placed in and poured by concrete, and has smooth surface without stress prestress points, so that shaking is very easy to occur when external tensile stress is applied, stability is poor, later replacement is inconvenient, the condition of the anchoring element needs to be checked regularly in the bridge concrete maintenance process, the anchoring element needs to be replaced in time when being damaged, and the anchoring element is directly arranged in the concrete through pouring, so that the working efficiency of workers is reduced.
Disclosure of utility model
The utility model aims to provide a prestress supporting beam anchoring structure for a concrete bridge, which has the advantages of good tensile effect and convenient replacement after an anchor rod is damaged.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a prestressing force corbel anchor structure for concrete bridge, includes the stress roof, the integrative fixed section of thick bamboo that has moulded plastics in bottom of stress roof, the top of stress roof runs through and is provided with the stock, the other end of stock extends to the bottom of fixed section of thick bamboo and installs the stress base, the surface threaded connection of stock has first fixation nut, the bottom of stress roof is provided with the stress urceolus, the top equidistance welding of stress urceolus has four threaded rods, the other end of threaded rod extends to the top of stress roof, the surface threaded connection of threaded rod has second fixation nut.
By adopting the technical scheme, the tensile effect is good, the stress between the anchor rod and the poured concrete is increased, the anchor rod is high in stability, the anchor rod is convenient to replace after being damaged, the poured concrete is not required to be damaged, and the working efficiency of staff is improved.
The utility model is further provided with: and a gasket is sleeved on the surface of the anchor rod.
By adopting the technical scheme, the contact area between the first fixing nut and the stress top plate can be improved through the arrangement of the gasket.
The utility model is further provided with: the surface of the stress outer cylinder is coated with an anti-corrosion coating.
By adopting the technical scheme, the service life of the stress outer cylinder in a humid environment can be prolonged through the arrangement of the anti-corrosion coating.
The utility model is further provided with: the diameter of the stress top plate is larger than that of the top end of the stress outer cylinder, and the diameter of the bottom end of the stress outer cylinder is larger than that of the stress top plate.
By adopting the technical scheme, the concrete pouring device can form offset with the concrete after the concrete is poured, and the concrete positioned between the bottom of the stress top plate and the upper part of the stress outer cylinder can strengthen the firmness.
The utility model is further provided with: the anchor rod, the first fixing nut, the threaded rod and the second fixing nut are all made of stainless steel materials.
By adopting the technical scheme, the anchor rod, the first fixing nut, the threaded rod and the second fixing nut have the characteristics of high strength, small density and excellent corrosion resistance.
The utility model is further provided with: the diameter of the stress base is smaller than the inner diameter of the top end of the stress outer cylinder, and the diameter of the stress base is larger than the diameter of the fixed cylinder.
By adopting the technical scheme, the stress base can limit the anchor rod and prevent the anchor rod from being independently displaced from the fixed cylinder, and the stress base can be moved out through the upper end inside the stress outer cylinder when the anchor rod is replaced.
In summary, the utility model has the following beneficial effects:
1. according to the utility model, the stress outer cylinder is placed at a designated position downwards, then concrete is poured towards the surface of the stress outer cylinder, the top layer of the concrete is positioned at the bottom of the stress top plate after pouring, prestress can be formed between the bottom of the stress top plate and the middle end of the stress outer cylinder and the concrete after the concrete is coagulated, the anchor rod can be limited under the cooperation of the internal fixing cylinder and the stress base, the tensile effect is good, the stress between the concrete and the poured concrete is increased, and the stability is high.
2. According to the utility model, when the anchor rod is damaged and needs to be removed, the second fixing nut at the top of the threaded rod is removed sequentially by using the tool, the second fixing nut is obliquely inserted at the bottom of the stress top plate to pry after being removed, at the moment, the bottom of the stress top plate drives the fixing cylinder and the anchor rod to move upwards when being pryed, and the fixing cylinder drives the stress base to be taken down together from the stress outer cylinder when moving upwards, so that the anchor rod can be replaced conveniently after being damaged, the poured concrete does not need to be damaged, and the working efficiency of staff is improved.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
fig. 2 is a front cross-sectional view of the structure of the present utility model.
Reference numerals: 1. a stress roof; 2. a fixed cylinder; 3. a bolt; 4. a stress base; 5. a first fixing nut; 6. a stress outer cylinder; 7. a threaded rod; 8. a second fixing nut; 9. a gasket.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Example 1:
Referring to fig. 1 and 2, a prestressed corbel anchoring structure for a concrete bridge, including a stress roof 1, a fixed cylinder 2 is integrally injection molded at the bottom of the stress roof 1, an anchor rod 3 is arranged at the top of the stress roof 1 in a penetrating manner, the other end of the anchor rod 3 extends to the bottom of the fixed cylinder 2 and is provided with a stress base 4, a first fixing nut 5 is connected to the surface of the anchor rod 3 in a threaded manner, a stress outer cylinder 6 is placed at a designated position downwards firstly, then concrete is poured towards the surface of the stress outer cylinder 6, the top layer of the concrete is located at the bottom of the stress roof 1 after pouring, prestress can be formed between the bottom of the stress roof 1 and the middle end of the stress outer cylinder 6 after the concrete is coagulated, the inside fixed cylinder 2 and the stress base 4 can limit the anchor rod 3 in a matched manner, the tensile effect is good, the stress between the concrete and the poured concrete is increased, and the stability is high.
Referring to fig. 1 and 2, the surface of the anchor rod 3 is sleeved with a spacer 9, and the contact area between the first fixing nut 5 and the stress top plate 1 can be increased by the arrangement of the spacer 9.
Referring to fig. 1 and 2, the diameter of the stress top plate 1 is larger than the diameter of the top end of the stress outer cylinder 6, the diameter of the bottom end of the stress outer cylinder 6 is larger than the diameter of the stress top plate 1, the stress top plate 1 and the stress outer cylinder 6 can be made to be balanced after concrete is poured, and the concrete between the bottom of the stress top plate 1 and the upper part of the stress outer cylinder 6 can strengthen firmness.
Referring to fig. 2, the diameter of the stress base 4 is smaller than the inner diameter of the top end of the stress outer cylinder 6, and the diameter of the stress base 4 is larger than the diameter of the fixed cylinder 2, so that the stress base 4 can limit the anchor rod 3, prevent the anchor rod 3 from being independently displaced from the fixed cylinder 2, and enable the stress base 4 to be moved out through the upper end inside the stress outer cylinder 6 when the anchor rod 3 is replaced.
The use process is briefly described: the stress outer cylinder 6 is placed at a designated position downwards, then concrete is poured towards the surface of the stress outer cylinder 6, the top layer of the concrete is located at the bottom of the stress top plate 1 after pouring, prestress can be formed between the bottom of the stress top plate 1 and the middle end of the stress outer cylinder 6 after the concrete is coagulated, and the anchor rod 3 can be limited under the cooperation of the internal fixed cylinder 2 and the stress base 4.
Example 2:
Referring to fig. 1 and 2, a prestressed corbel anchoring structure for a concrete bridge, the bottom of a stress roof 1 is provided with a stress outer cylinder 6, four threaded rods 7 are welded at equal intervals on the top of the stress outer cylinder 6, the other ends of the threaded rods 7 extend to the top of the stress roof 1, the surfaces of the threaded rods 7 are connected with second fixing nuts 8 in a threaded manner, when an anchor rod 3 is damaged and needs to be removed, the second fixing nuts 8 on the top of the threaded rods 7 are removed in sequence by using tools, the second fixing nuts 8 are obliquely inserted into the bottom of the stress roof 1 after being removed, at the moment, the bottom of the stress roof 1 can drive a fixing cylinder 2 and the anchor rod 3 to move upwards when being subjected to prying, the fixing cylinder 2 can drive a stress base 4 to be taken down from the stress outer cylinder 6 together when being moved upwards, replacement is convenient after the anchor rod 3 is damaged, poured concrete is not required to be damaged, and working efficiency of workers is improved.
Referring to fig. 1 and 2, the surface of the stress outer tube 6 is coated with an anti-corrosive paint, and the service life of the stress outer tube 6 in a humid environment can be improved by the arrangement of the anti-corrosive paint.
Referring to fig. 1 and 2, the anchor rod 3, the first fixing nut 5, the threaded rod 7 and the second fixing nut 8 are all made of stainless steel materials, and the anchor rod 3, the first fixing nut 5, the threaded rod 7 and the second fixing nut 8 have the characteristics of high strength, low density and excellent corrosion resistance.
The use process is briefly described: through demolishing in proper order with the instrument first to the second fixation nut 8 at threaded rod 7 top when stock 3 is impaired needs demolishment, second fixation nut 8 is inserted to one side with the instrument after demolishing and is prized in the bottom of stress roof 1, and the bottom of stress roof 1 can drive fixed section of thick bamboo 2 and stock 3 when receiving the prizing this moment and upwards remove, and fixed section of thick bamboo 2 can drive stress base 4 and take off in the stress urceolus 6 together when upwards moving.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (6)
1. The utility model provides a prestressed corbel anchor structure for concrete bridge, includes stress roof (1), its characterized in that: the utility model discloses a stress roof, including stress roof, fixed barrel (2) are moulded plastics in an organic whole to the bottom of stress roof (1), the top of stress roof (1) runs through and is provided with stock (3), the other end of stock (3) extends to the bottom of fixed barrel (2) and installs stress base (4), the surface threaded connection of stock (3) has first fixation nut (5), the bottom of stress roof (1) is provided with stress urceolus (6), the top equidistance welding of stress urceolus (6) has four threaded rods (7), the other end of threaded rod (7) extends to the top of stress roof (1), the surface threaded connection of threaded rod (7) has second fixation nut (8).
2. The prestressed corbel anchoring structure for the concrete bridge according to claim 1, wherein the surface of the anchor rod (3) is sleeved with a gasket (9).
3. The prestressed corbel anchoring structure for a concrete bridge according to claim 1, wherein the surface of the stress outer cylinder (6) is coated with an anticorrosive paint.
4. The prestressed corbel anchoring structure for the concrete bridge according to claim 1, wherein the diameter of the stress roof (1) is larger than the diameter of the top end of the stress outer cylinder (6), and the diameter of the bottom end of the stress outer cylinder (6) is larger than the diameter of the stress roof (1).
5. The prestressed corbel anchoring structure for a concrete bridge according to claim 1, wherein the anchor rods (3), the first fixing nuts (5), the threaded rods (7) and the second fixing nuts (8) are all made of stainless steel materials.
6. The prestressed corbel anchoring structure for a concrete bridge according to claim 1, wherein the diameter of the stress base (4) is smaller than the inner diameter of the top end of the stress outer cylinder (6), and the diameter of the stress base (4) is larger than the diameter of the fixed cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323154956.0U CN221167420U (en) | 2023-11-22 | 2023-11-22 | Prestressed corbel anchoring structure for concrete bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323154956.0U CN221167420U (en) | 2023-11-22 | 2023-11-22 | Prestressed corbel anchoring structure for concrete bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221167420U true CN221167420U (en) | 2024-06-18 |
Family
ID=91537738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323154956.0U Active CN221167420U (en) | 2023-11-22 | 2023-11-22 | Prestressed corbel anchoring structure for concrete bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221167420U (en) |
-
2023
- 2023-11-22 CN CN202323154956.0U patent/CN221167420U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |