CN217839761U - Bridge glues steel composite reinforcement structure - Google Patents
Bridge glues steel composite reinforcement structure Download PDFInfo
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- CN217839761U CN217839761U CN202222191993.8U CN202222191993U CN217839761U CN 217839761 U CN217839761 U CN 217839761U CN 202222191993 U CN202222191993 U CN 202222191993U CN 217839761 U CN217839761 U CN 217839761U
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Abstract
The utility model discloses a bridge glues compound reinforced structure of steel in bridge reinforcement technical field, including the girder, the below position of girder is pasted and is had carbon cloth, carbon cloth's below position is provided with the steel sheet, the steel sheet bolt hole has been seted up on the surface of steel sheet, the chemical crab-bolt has been inserted to the inside of steel sheet bolt hole, the steel sheet passes through the chemical crab-bolt and connects in the girder below, steel sheet grout hole has still been seted up on the surface of steel sheet, the steel sheet passes through the sticky subsides of steel sheet grout hole structure in carbon cloth below, and this reinforced structure has effectively improved the bending resistance bearing capacity and the anti bearing capacity of shearing of girder, compares in carbon fiber material reinforced structure, the utility model provides an anchor problem to carbon fiber material improves the ductility of being consolidated component simultaneously, compares in pasting steel sheet reinforced structure, the utility model discloses a compound reinforced mode has reduced the thickness of steel plate to restrain the fissured development of girder better.
Description
Technical Field
The utility model relates to a bridge reinforcement technical field specifically is a bridge glues steel composite reinforcement structure.
Background
Due to the influence of factors such as long design age, natural environment and the like, the bridge can generate an aging and cracking phenomenon, so that the bearing capacity and reliability of the structure are reduced, and the bridge needs to be reinforced by adopting a reasonable reinforcing structure to prolong the service life of the structure.
The reinforcing method by sticking the steel plate and the reinforcing method by sticking the carbon fiber material are two reinforcing methods which are widely applied at present, and both can effectively improve the bending resistance of the member. However, the single material reinforcing method often has certain limitations. For the steel plate pasting reinforcement method, insufficient thickness of the steel plate can make the reinforced structure unable to meet the bending resistance bearing capacity requirement, and the increase of the thickness of the steel plate is usually accompanied with the increase of the construction difficulty and the reinforcement budget. For the reinforcing method by using the carbon fiber material alone, the reinforcing effect is not good enough because the elastic modulus difference between the carbon fiber material and the concrete is large.
Based on this, the utility model designs a bridge glues steel composite reinforcement structure to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge glues steel composite strengthening structure to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a bridge bonded steel composite reinforcing structure comprises a girder, wherein carbon fiber cloth is adhered to the lower position of the girder, a steel plate is arranged below the carbon fiber cloth, a steel plate bolt hole is formed in the surface of the steel plate, a chemical anchor bolt is inserted into the steel plate bolt hole, the steel plate is bolted below the girder through the chemical anchor bolt, a steel plate grouting hole is further formed in the surface of the steel plate, and the steel plate is adhered below the carbon fiber cloth through a steel plate grouting hole grouting structure;
a first pressing strip is arranged in the middle of the lower portion of the main beam and anchored with the steel plate through a chemical anchor bolt;
the two sides of the lower side of the main beam are provided with an L-shaped steel plate hoop and a second pressing strip, and the L-shaped steel plate hoop and the second pressing strip are anchored through chemical anchor bolts.
Preferably, the 50mm positions of the edges of the two sides of the steel plate are uniformly provided with steel plate bolt holes and steel plate grouting holes, and the steel plate bolt holes and the steel plate grouting holes are distributed in a staggered mode.
Preferably, a bolt hole and a grouting hole are formed in the surface of the first pressing strip, and the positions of the bolt hole and the grouting hole are overlapped with those of the steel plate bolt hole and the steel plate grouting hole.
Preferably, the L-shaped steel plate hoops are completely attached to the main beam, the distribution distance of the L-shaped steel plate hoops from the end part of the main beam to 1/4 span is 200mm, and the distribution distance of the L-shaped steel plate hoops from the 1/4 span of the main beam to the midspan position is 600mm.
Preferably, a steel cushion block is fixedly connected to a gap between the first pressing strip and the steel plate, and a steel cushion block is fixedly connected to a gap between the second pressing strip and the L-shaped steel plate hoop.
Preferably, a perfusion adhesive layer is arranged between the carbon fiber cloth and the steel plate, and the thickness of the perfusion adhesive layer is 3-5mm.
Preferably, the edge of steel sheet has inserted the exhaust rubber tube, the inside in steel sheet grout hole has inserted into and has glued the mouth, the crab-bolt head fixedly connected with crab-bolt bowl of chemical anchor bolt, the edge coating of steel sheet is equipped with the banding and glues.
Compared with the prior art, the beneficial effects of the utility model are that: this reinforced structure has effectively improved the bending resistance bearing capacity and the anti shearing bearing capacity of girder, compares in carbon fiber material reinforced structure, the utility model provides a to carbon fiber material's anchor problem, improve the ductility of being consolidated component simultaneously, compare in pasting steel sheet reinforced structure, the utility model discloses a compound reinforced (rfd) mode has reduced the steel sheet thickness to restrain the cracked development of girder better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a bottom view of the main beam of the present invention;
fig. 3 is a side view of the main beam of the present invention;
FIG. 4 is a hole opening diagram of the single steel plate composite structure of the present invention;
FIG. 5 is a schematic view of the batten-steel plate anchor of the present invention;
FIG. 6 is a schematic view of the grouting of the present invention;
figure 7 is the utility model discloses grout banding exhaust schematic diagram.
In the drawings, the reference numbers indicate the following list of parts:
1. a main beam; 2. carbon fiber cloth; 3. pouring a glue layer; 4. a steel plate; 41. steel plate bolt holes; 42. grouting holes in the steel plate; 5. a first pressing strip; 51. a first grouting hole; 52. a first bolt hole; 6. a chemical anchor bolt; 7. an L-shaped steel plate hoop; 8. pressing a bar II; 9. a steel cushion block; 10. edge sealing glue for the steel plate; 11. an exhaust rubber pipe; 12. injecting a glue nozzle; 13. anchor bolt cover bowl.
Detailed Description
The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example one
Referring to the drawings, the utility model provides a technical scheme: a bridge bonded steel composite reinforcing structure comprises a girder 1, wherein a carbon fiber cloth 2 is adhered to the lower position of the girder 1, a steel plate 4 is arranged on the lower position of the carbon fiber cloth 2, a steel plate bolt hole 41 is formed in the surface of the steel plate 4, a chemical anchor bolt 6 is inserted into the steel plate bolt hole 41, the steel plate 4 is bolted to the lower position of the girder 1 through the chemical anchor bolt 6, a steel plate grouting hole 42 is further formed in the surface of the steel plate 4, and the steel plate 4 is adhered to the lower position of the carbon fiber cloth 2 through a steel plate grouting hole 42 in a grouting structure;
a first pressing strip 5 is arranged in the middle of the lower portion of the main beam 1, and the first pressing strip 5 is anchored with the steel plate 4 through a chemical anchor bolt 6;
the two sides of the lower part of the main beam 1 are respectively provided with an L-shaped steel plate hoop 7 and a second pressing strip 8, and the L-shaped steel plate hoop 7 and the second pressing strip 8 are anchored by a chemical anchor bolt 6.
Specifically, 50mm positions of two side edges of the steel plate 4 are uniformly provided with steel plate bolt holes 41 and steel plate grouting holes 42, and the steel plate bolt holes 41 and the steel plate grouting holes 42 are distributed in a staggered mode.
Specifically, a first bolt hole 51 and a first grouting hole 52 are formed in the surface of the first pressing bar 5, and the positions of the first bolt hole 51 and the first grouting hole 52 coincide with the positions of the steel plate bolt hole 41 and the steel plate grouting hole 42.
Specifically, the L-shaped steel plate hoops 7 are completely attached to the main beam 1, the distribution distance of the L-shaped steel plate hoops 7 from the end part to 1/4 span of the main beam 1 is 200mm, and the distribution distance of the L-shaped steel plate hoops 7 from 1/4 span to the midspan position of the main beam 1 is 600mm.
Specifically, a steel cushion block 9 is fixedly connected to a gap between the first pressing strip 5 and the steel plate 4, and a steel cushion block 9 is fixedly connected to a gap between the second pressing strip 8 and the L-shaped steel plate hoop 7.
Specifically, a perfusion glue layer 3 is arranged between the carbon fiber cloth 2 and the steel plate 4, and the thickness of the perfusion glue layer 3 is 3-5mm.
Specifically, the edge of the steel plate 4 is inserted with the exhaust rubber pipe 11, the inner part of the steel plate grouting hole 42 is inserted with the injection rubber nozzle 12, the anchor bolt head of the chemical anchor bolt 6 is fixedly connected with the anchor bolt cover bowl 13, and the edge of the steel plate 4 is coated with the edge sealing rubber 10.
In this example: before reinforcement, at first, the location of drawing a line in 1 structure bottom of girder, and to the old position on 1 bottom concrete surface of girder derusting, the decontamination, purification treatment, repair the glue repair crack with epoxy, fill the hole, and adjust the difference in height, remove the closed angle, girder 1 lower extreme evenly paints the carbon fiber impregnated glue, paste after tensioning the alignment of a plurality of carbon fiber cloth 2, a plurality of chemical crab-bolts 6 are implanted to the lower extreme of carbon fiber cloth 2 according to the line of location, a plurality of steel sheet 4 are seted up steel sheet bolt hole 41 according to the position of implanting chemical crab-bolt 6 and are installed fixedly, steel sheet 4 pours into structure through steel sheet grout hole 42 and glues and paste at carbon fiber cloth 2 lower extreme, girder 1 horizontal bridge adopts a plurality of layering 5 and chemical crab-bolt 6 to anchor to steel sheet 4 at middle part, girder 1 horizontal bridge adopts a plurality of L shaped steel sheet hoop 7 to anchor to the steel sheet 4 of both sides, L shaped steel sheet hoop 7 adopts two No. two layering 8 and chemical crab-bolt 6 to anchor in web department.
Example two
The structure of the embodiment is basically the same as that of the first embodiment, and the difference is that a plurality of first pressing strips 5 and chemical anchor bolts 6 are adopted at two ends and midspan positions of a steel plate 4 of a transverse bridge middle part of a main beam 1 for anchoring, gaps between the first pressing strips 5 and the steel plate 4 are filled and leveled by using steel cushion blocks 9, an L-shaped steel plate hoop 7 is completely attached to a web plate of the main beam 1 through cold bending processing, the L-shaped steel plates 4 are distributed densely from the end part of the main beam 1 to the 1/4 span position, the distribution distance is 200mm from the 1/4 span position to the midspan position of the main beam 1, the L-shaped steel plate hoop 7 is anchored by adopting two second pressing strips 8 and chemical anchor bolts 6 at the web plate position, and the gaps between the second pressing strips 8 and the L-shaped steel plate hoop 7 are filled and leveled by using the steel cushion blocks 9.
EXAMPLE III
The structure of the embodiment is basically the same as that of the first embodiment, the difference is that steel plate bolt holes 41 and steel plate grouting holes 42 are uniformly formed in 50mm positions of two side edges of a steel plate 4, the steel plate bolt holes 41 and the steel plate grouting holes 42 are distributed in a staggered mode, the positions of a first bolt hole 51 and a first grouting hole 52 of a first pressing strip 5 coincide with the positions of the steel plate bolt holes 41 and the steel plate grouting holes 42 in the steel plate 4, the number of implanted bolts can be reduced, an injection nozzle 12 is bonded on the steel plate grouting holes 42, an exhaust rubber pipe 11 is inserted into the edge of the steel plate 4, a cover bowl 13 is covered on a chemical anchor bolt 6, the edge of the steel plate is sealed by steel plate edge sealing rubber 10, after the edge sealing rubber is solidified, structural sticky steel rubber in a pressure tank is injected into a gap between the steel plate and concrete from the injection nozzle 12 through a plastic conduit, pressurization is stopped when the exhaust holes emit grout, the exhaust rubber is stopped, the exhaust holes are blocked by the steel plate edge sealing rubber, a perfusion rubber layer 3 is formed between a carbon fiber cloth 2 and the steel plate 4, the thickness of the perfusion rubber layer 3 is 3-5mm, construction is finished after the injection, and the construction is carried out, and the structural rubber is heated and the structural maintenance is promoted to be kept to stand.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a bridge glues steel composite reinforcement structure, includes girder (1), its characterized in that: the carbon fiber cloth (2) is adhered to the lower position of the main beam (1), a steel plate (4) is arranged on the lower position of the carbon fiber cloth (2), a steel plate bolt hole (41) is formed in the surface of the steel plate (4), a chemical anchor bolt (6) is inserted into the steel plate bolt hole (41), the steel plate (4) is bolted to the lower portion of the main beam (1) through the chemical anchor bolt (6), a steel plate grouting hole (42) is further formed in the surface of the steel plate (4), and the steel plate (4) is adhered to the lower portion of the carbon fiber cloth (2) through a steel plate grouting hole (42) perfusion structural adhesive;
a first pressing strip (5) is arranged in the middle of the lower portion of the main beam (1), and the first pressing strip (5) is anchored with the steel plate (4) through a chemical anchor bolt (6);
both sides position of girder (1) below all is provided with L shaped steel plate hoop (7) and No. two layering (8), L shaped steel plate hoop (7) and No. two layering (8) are all through chemical crab-bolt (6) anchor.
2. The bridge bonded steel composite reinforcing structure according to claim 1, wherein: steel plate bolt holes (41) and steel plate grout holes (42) are evenly formed in 50mm positions of edges on two sides of the steel plate (4), and the steel plate bolt holes (41) and the steel plate grout holes (42) are distributed in a staggered mode.
3. The bridge bonded steel composite reinforcing structure of claim 2, wherein: a bolt hole (51) and a grouting hole (52) are formed in the surface of the first pressing strip (5), and the positions of the bolt hole (51) and the grouting hole (52) coincide with the positions of the steel plate bolt hole (41) and the steel plate grouting hole (42).
4. The bridge steel-bonded composite reinforcing structure according to claim 1, characterized in that: l shaped steel plate hoop (7) and girder (1) laminate completely, L shaped steel plate hoop (7) are 200mm to the 1/4 punishment distribution interval of striding in girder (1) tip, L shaped steel plate hoop (7) are 600mm to striding the position distribution interval of striding in the 1/4 punishment of girder (1).
5. The bridge steel-bonded composite reinforcing structure according to claim 1, characterized in that: a steel cushion block (9) is fixedly connected to the position of a gap between the first pressing strip (5) and the steel plate (4), and a steel cushion block (9) is fixedly connected to the position of a gap between the second pressing strip (8) and the L-shaped steel plate hoop (7).
6. The bridge steel-bonded composite reinforcing structure according to claim 1, characterized in that: a perfusion glue layer (3) is arranged between the carbon fiber cloth (2) and the steel plate (4), and the thickness of the perfusion glue layer (3) is 3-5mm.
7. The bridge bonded steel composite reinforcing structure according to claim 1, wherein: the edge of steel sheet (4) has inserted exhaust rubber tube (11), the inside of steel sheet grout hole (42) has inserted into gluey mouth (12), the anchor bolt head fixedly connected with crab-bolt bowl (13) of chemical anchor bolt (6), the edge of steel sheet (4) is scribbled and is equipped with edge sealing glue (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222191993.8U CN217839761U (en) | 2022-08-19 | 2022-08-19 | Bridge glues steel composite reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222191993.8U CN217839761U (en) | 2022-08-19 | 2022-08-19 | Bridge glues steel composite reinforcement structure |
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| Publication Number | Publication Date |
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| CN217839761U true CN217839761U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222191993.8U Active CN217839761U (en) | 2022-08-19 | 2022-08-19 | Bridge glues steel composite reinforcement structure |
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- 2022-08-19 CN CN202222191993.8U patent/CN217839761U/en active Active
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