CN112982199A - Bridge fiber reinforced structure and construction method thereof - Google Patents
Bridge fiber reinforced structure and construction method thereof Download PDFInfo
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- CN112982199A CN112982199A CN202110305203.1A CN202110305203A CN112982199A CN 112982199 A CN112982199 A CN 112982199A CN 202110305203 A CN202110305203 A CN 202110305203A CN 112982199 A CN112982199 A CN 112982199A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The utility model relates to a bridge reinforcement technical field specifically discloses a bridge fiber reinforced structure and construction method thereof, bridge fiber reinforced structure is used for consolidating the bridge, the bridge includes the girder, two supporting shoes, the pillar, fiber reinforced structure includes a plurality of carbon fiber cloth that distribute and set firmly in the girder bottom surface along girder length direction, set up and both ends stretch into the concrete slab in two supporting shoes respectively along girder length direction, a plurality of carbon fiber plate that distribute and install in the concrete slab bottom surface along girder width direction, set up the fixed subassembly that just is used for fixed carbon fiber plate on concrete slab, concrete slab forms for concrete site pouring, concrete slab top surface and girder bottom surface are inconsistent and its top surface has seted up the recess of stepping down, fixed recess has been seted up respectively to the side of two supporting shoes. This fibre reinforced structure not only improves the fixed stability of carbon fiber plate, but also reduces the influence of carbon fiber plate installation to the original bearing capacity of girder.
Description
Technical Field
The application relates to the technical field of bridge reinforcement, in particular to a bridge fiber reinforced structure and a construction method thereof.
Background
With the development of society and the improvement of living standard, the transportation industry has also gained rapid progress, and along with the increase of traffic flow, the traffic density increases, and at this moment, the bearing demand of bridge is bigger and bigger, in order to improve the security that the vehicle passed on the bridge surface, need consolidate the bridge.
The reinforcement of bridges is generally to restore or increase the load-bearing capacity of bridges by reinforcing the structural members and improving the structural properties. The carbon fiber plate has the advantages of high strength, high elastic modulus and good corrosion resistance, and is widely applied to bridge reinforcement. The bridge includes the girder, and the bottom surface interval of girder has set firmly two supporting shoes, and the supporting shoe sets up along girder width direction. The bottom surfaces of the two supporting blocks are respectively and fixedly provided with two supporting columns which are distributed at intervals along the width direction of the main beam. The carbon fiber plate is arranged on the bottom surface of the main beam along the length direction of the main beam, and the bearing capacity of the main beam is increased. However, if the carbon fiber plate is fixed on the bottom surface of the main beam by using the adhesive, the adhesive is easily aged by the influence of the environment and peeled off with the lapse of time, which affects the stability of the connection between the carbon fiber plate and the main beam; if set up the screw rod on the carbon fiber plate, the screw rod runs through the carbon fiber plate and slides rather than being connected to in making the top of screw rod stretch into the girder, the bottom threaded connection nut of screw rod presss from both sides the carbon fiber plate tightly between girder and nut, and at this moment, the internal structure of girder can be destroyed to the screw rod, and influences the original bearing capacity of girder.
Disclosure of Invention
In order to improve the stability of fixing the carbon fiber plates and reduce the influence of the installation of the carbon fiber plates on the original bearing capacity of the main beam, the application provides a bridge fiber reinforced structure and a construction method thereof.
In a first aspect, the present application provides a bridge fiber reinforced structure, which adopts the following technical scheme:
a bridge fiber reinforced structure is used for reinforcing a bridge, the bridge comprises a girder, two supporting blocks fixedly arranged on the bottom surface of the girder, a support column is fixedly arranged on the bottom surface of each supporting block, the fiber reinforced structure comprises a plurality of carbon fiber cloths distributed along the length direction of the girder and fixedly arranged on the bottom surface of the girder, a concrete plate arranged along the length direction of the girder and with two ends respectively extending into the two supporting blocks, a plurality of carbon fiber plates distributed along the width direction of the girder and arranged on the bottom surfaces of the concrete plates, and a fixing component arranged on the concrete plates and used for fixing the carbon fiber plates, the carbon fiber cloths are arranged along the width direction of the girder, the carbon fiber plates are arranged along the length direction of the girder, the concrete plates are concrete plates cast in situ by concrete, the top surfaces of the concrete plates are abutted against the bottom surface of the girder, and the top surfaces of the concrete plates are provided with abdicati, and the side surfaces of the two supporting blocks are respectively provided with a fixing groove matched with the concrete slab.
Through adopting above-mentioned technical scheme, bottom surface at the girder sets up concrete slab, bottom surface at concrete slab sets up the carbon fiber board, the carbon fiber board is through fixed subassembly fixed mounting in concrete slab's bottom surface, because do not adopt the adhesive to fix the carbon fiber board on the girder bottom surface, can increase the fixed stability of carbon fiber board and life, moreover because the carbon fiber board is fixed on concrete slab, can not lead to the fact destruction to the inner structure of girder, the influence of carbon fiber board installation to the original bearing capacity of girder has been reduced.
Simultaneously, set up carbon cloth between concrete slab and girder, carbon cloth and carbon fiber board are perpendicular, and through carbon cloth, mutually support between the carbon fiber board, further improve fiber reinforced structure's bearing capacity, because concrete slab's both ends stretch into in the bracing piece, and concrete slab pours in situ for the concrete and forms, its joint strength that can effectual increase concrete slab and two supporting shoes, girder, carbon fiber cloth, and improve fiber reinforced structure's result of use and life-span.
Optionally, the quantity of fixed subassembly is a plurality of, and is a plurality of fixed subassembly distributes along girder length direction, fixed subassembly including span carbon fiber board and with carbon fiber board conflict fixed steel sheet, two be located the clamping screw of carbon fiber board both sides respectively, two respectively with two clamping screw threaded connection's fixation nut, clamping screw's top stretches into in the concrete slab and rather than fixed connection, bottom run through the fixed steel sheet and rather than slide and be connected, the fixed steel sheet presss from both sides tightly between fixation nut and concrete slab.
Through adopting above-mentioned technical scheme, when the carbon fiber board is in the mounted state, the carbon fiber board presss from both sides tightly between fixed steel sheet and concrete slab, is not only convenient for install the carbon fiber board, but also has the stable advantage of installation.
Optionally, the fixed steel plate is provided with backing plates on both sides of the carbon fiber plate respectively, the backing plates are located between the fixed steel plate and the concrete slab, and the fixing screw penetrates through the backing plates and is connected with the backing plates in a sliding manner.
Through adopting above-mentioned technical scheme, reduce the crooked condition of fixed steel sheet emergence, improve the homogeneity of fixed steel sheet and carbon fiber board atress, improve the stability of carbon fiber board installation.
Optionally, the top surface of the fixed steel plate is fixedly provided with a limiting convex block, and the bottom surface of the carbon fiber plate is provided with a limiting groove matched with the limiting convex block.
Through adopting above-mentioned technical scheme, spacing lug is located spacing recess to play the spacing effect of direction to the position of carbon fiber plate, reduce the gliding condition of carbon fiber plate appearance.
Optionally, the top of the carbon fiber plate extends into the concrete plate, a mounting groove is formed in the bottom surface of the concrete plate, and the top of the carbon fiber plate is located in the mounting groove.
Through adopting above-mentioned technical scheme, the top of carbon fiber plate is located mounting groove, not only plays the spacing effect of direction to the carbon fiber plate, but also has increased the area of contact between carbon fiber plate and the concrete slab, improves the bearing capacity of girder, improves fiber reinforced structure's practicality.
Optionally, a protection assembly for protecting the fixing assembly is arranged on the concrete slab, the protection assembly comprises a protection cover which is open at the top end and hollow inside, the opening of the protection cover faces the concrete slab, the carbon fiber plate and the fixing assembly are located in the protection cover, and the protection cover is detachably mounted on the concrete slab.
Through adopting above-mentioned technical scheme, carbon fiber plate, fixed subassembly are located the protection casing, reduce rainwater, foreign object collision to carbon fiber plate, fixed subassembly's influence, improve carbon fiber plate, fixed subassembly's life.
Optionally, the protection casing lateral wall has set firmly the mounting panel inconsistent with concrete slab bottom surface to keeping away from the carbon fiber board direction, be provided with a plurality of set screws on the mounting panel, the mounting panel is installed on concrete slab through a plurality of set screws.
By adopting the technical scheme, when the mounting plate is in a fixed state, the screw rod of the fixing screw penetrates through the mounting plate and extends into the concrete slab, and the mounting plate is clamped between the screw cap of the fixing screw and the concrete slab, so that the protective cover is convenient to mount.
Optionally, a plurality of reinforcing steel bars distributed along the width direction of the girder are fixedly arranged in the concrete slab, the reinforcing steel bars are arranged along the length direction of the girder, and two ends of each reinforcing steel bar extend into the supporting block and are fixedly connected with the supporting block.
Through adopting above-mentioned technical scheme, not only increase concrete slab's bearing capacity, but also increased the joint strength between concrete slab and two supporting shoes, improved fibre reinforced structure's bearing capacity and practicality.
Optionally, concrete slab sets firmly a plurality of joint bars, and is a plurality of joint bar divide into the multiunit along girder width direction, and adjacent two sets of a plurality of joint bars distribute along girder length direction is crisscross, joint bar is 8 style of calligraphy and cover and establishes between two adjacent reinforcing bars and realize two adjacent reinforcing bar's connection.
Through adopting above-mentioned technical scheme, the mutually supporting of reinforcing bar, connecting reinforcement forms the interwoven net in concrete slab, improves the homogeneity of concrete slab atress, still has the advantage of the construction of being convenient for simultaneously.
In a second aspect, the present application provides a construction method for a bridge fiber reinforced structure, which adopts the following technical scheme:
a construction method of a bridge fiber reinforced structure comprises the following steps:
a plurality of carbon fiber cloths are bonded on the bottom surface of the main beam, the carbon fiber cloths are distributed along the length direction of the main beam, and the carbon fiber cloths are arranged along the width direction of the main beam;
fixing grooves are respectively formed in the two supporting blocks, a lower template is arranged between the two supporting blocks, side templates are respectively arranged at the two ends of the main beam along the width direction of the main beam, and cavities are formed among the lower template, the two side templates, the two supporting blocks, the main beam and the fixing grooves;
pouring concrete in the cavity, curing and molding the concrete, removing the lower template and the two side templates to form a concrete slab, fixing the concrete slab, the two supporting blocks, the main beam and the carbon fiber cloth, and forming a abdication groove on the top surface of the concrete slab at the carbon fiber cloth;
a plurality of carbon fiber boards of bottom surface fixed mounting at concrete slab, a plurality of carbon fiber boards distribute along girder width direction, and the carbon fiber board sets up along girder length direction.
By adopting the technical scheme, the construction of the fiber reinforced structure is facilitated.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the utility model provides a bridge fiber reinforced structure, through carbon cloth, concrete slab, mutually support between the carbon fiber board, not only improved the fixed stability of carbon fiber board, and reduced the influence of carbon fiber board installation to the original bearing capacity of girder, because concrete slab's both ends stretch into in the bracing piece, and concrete slab forms for concrete cast in situ, effectual increase concrete slab and two supporting shoes, the girder, carbon cloth's joint strength, and improve fiber reinforced structure's result of use and life-span.
2. The carbon fiber plate is clamped between the fixed steel plate and the concrete plate, and the carbon fiber plate is convenient to mount and has the advantage of stable mounting through the mutual matching of the fixed steel plate, the fixed screw rod and the fixed nut.
3. Set up reinforcing bar, connecting reinforcement in concrete slab to through reinforcing bar, connecting reinforcement mutually support, form the interwoven net in concrete slab, not only further increased concrete slab's bearing capacity, improved the homogeneity of concrete slab atress moreover, still have the advantage of being convenient for the construction simultaneously.
Drawings
FIG. 1 is a schematic structural view of example 1.
Fig. 2 is a partial sectional view of the reinforcing bars and the connecting bars in example 1.
Fig. 3 is a partial sectional view showing the fixing unit and the shield unit in embodiment 1.
Fig. 4 is a partial sectional view for showing the fixing member in embodiment 1.
Fig. 5 is a partial sectional view for showing the shield assembly in embodiment 1.
Description of reference numerals: 1. a bridge; 11. a main beam; 12. a support block; 121. fixing the groove; 122. mounting holes; 13. a pillar; 2. carbon fiber cloth; 3. a concrete slab; 31. a yielding groove; 32. reinforcing steel bars; 33. connecting reinforcing steel bars; 34. installing a groove; 4. a carbon fiber sheet; 41. a limiting groove; 5. a fixing assembly; 51. fixing a steel plate; 511. a limiting bump; 52. fixing the screw rod; 53. fixing a nut; 54. a base plate; 6. a guard assembly; 61. a protective cover; 62. mounting a plate; 63. and fixing the screw.
Detailed Description
The present application will be described in further detail with reference to examples.
Example 1
The embodiment of the application discloses bridge fiber reinforced structure. Referring to fig. 1, the fiber reinforced structure is used to reinforce a bridge 1 and increase the stability and life span of the bridge 1 in use. The bridge 1 comprises a girder 11, two supporting blocks 12 are fixedly arranged on the bottom surface of the girder 11 at intervals, and the supporting blocks 12 are arranged along the width direction of the girder 11. Two pillars 13 are respectively and fixedly arranged on the bottom surfaces of the two supporting blocks 12, and the two pillars 13 are distributed at intervals along the width direction of the main beam 11.
Referring to fig. 1 and 2, the fiber reinforced structure includes a plurality of carbon fiber cloth 2 that set firmly in 11 bottom surfaces of girder, and a plurality of carbon fiber cloth 2 set up along 11 length direction of girder evenly distributed of girder, carbon fiber cloth 2 along 11 width direction of girder. The bottom surface of the girder 11 is fixedly provided with a concrete slab 3, the concrete slab 3 is arranged along the length direction of the girder 11, the concrete slab 3 is positioned between the two supporting blocks 12, and the concrete slab 3 is formed by casting concrete in situ. The top surface of the concrete slab 3 is provided with a abdicating groove 31 matched with the carbon fiber cloth 2. Two ends of the concrete slab 3 respectively extend into the two supporting blocks 12, and the side walls of the supporting blocks 12 are provided with fixing grooves 121 matched with the concrete slab 3.
Referring to fig. 1 and 2, a plurality of reinforcing bars 32 are fixedly disposed in the concrete slab 3, the reinforcing bars 32 are uniformly distributed along the width direction of the main beam 11, and the reinforcing bars 32 are disposed along the length direction of the main beam 11. Both ends of reinforcing bar 32 stretch into the lateral wall of fixed recess 121 respectively in, the mounting hole 122 with reinforcing bar 32 looks adaptation is seted up to the lateral wall of fixed recess 121, and mounting hole 122 does not run through supporting shoe 12. A plurality of connecting reinforcing bars 33 are fixedly arranged in the concrete slab 3, the plurality of connecting reinforcing bars 33 are divided into a plurality of groups along the width direction of the main beam 11, each group is also provided with a plurality of connecting reinforcing bars 33, and the plurality of connecting reinforcing bars 33 of two adjacent groups are distributed along the length of the main beam 11 in a staggered manner. The connecting reinforcing steel bars 33 are arranged between two adjacent reinforcing steel bars 32, one ends of the connecting reinforcing steel bars 33 bypass the reinforcing steel bars 32 from the upper parts of the reinforcing steel bars 32, then bypass the adjacent reinforcing steel bars 32 from the upper parts of the adjacent reinforcing steel bars 32, and then are fixedly connected with the other ends of the connecting reinforcing steel bars 33 to form an 8-shaped structure, namely, the connecting reinforcing steel bars 33 are sleeved between the two adjacent reinforcing steel bars 32 to realize the connection of the two adjacent reinforcing steel bars 32, at the moment, the reinforcing steel bars 32 and the connecting reinforcing steel bars 33 form a woven net, so that the bearing capacity of the concrete slab 3 is further increased, and the stress uniformity of the concrete slab 3 is improved.
Referring to fig. 3 and 4, a plurality of carbon fiber plates 4 are arranged on the bottom surface of the concrete slab 3, the plurality of carbon fiber plates 4 are uniformly distributed along the width direction of the girder 11, the carbon fiber plates 4 are arranged along the length direction of the girder 11, the carbon fiber plates 4 are located between two support blocks 12, and two ends of the carbon fiber plates 4 are in contact with the two support blocks 12. The top of the carbon fiber plate 4 extends into the concrete plate 3, the bottom surface of the concrete plate 3 is provided with a mounting groove 34 matched with the carbon fiber plate 4, the top of the carbon fiber plate 4 is positioned in the mounting groove 34, and the bottom of the carbon fiber plate 4 is positioned outside the mounting groove 34. The concrete slab 3 is evenly provided with a plurality of fixing assemblies 5 for fixing the carbon fiber plates 4 along the length direction of the carbon fiber plates 4, and the concrete slab 3 is also provided with a protection assembly 6 for protecting the plurality of fixing assemblies 5 and prolonging the service life of the fixing assemblies 5. The number of the protective assemblies 6 is plural, and the plural protective assemblies 6 and the plural carbon fiber plates 4 correspond to each other one by one.
Referring to fig. 4 and 5, the fixing assembly 5 includes a fixing steel plate 51 abutting against the bottom surface of the carbon fiber plate 4, the fixing steel plate 51 spans the carbon fiber plate 4, and the fixing steel plate 51 is disposed along the width direction of the main beam 11. The fixing steel plate 51 is provided at both ends thereof with fixing screws 52, respectively, and the carbon fiber plate 4 is located between the two fixing screws 52. The top end of the fixing screw 52 extends into the concrete slab 3 and is fixedly connected with the same, and the bottom end of the fixing screw 52 penetrates through the fixing steel plate 51 and is connected with the same in a sliding manner. A fixing nut 53 is screwed to the outer peripheral surface of the fixing screw 52. Backing plates 54 are respectively arranged between the two ends of the fixed steel plate 51 and the concrete plate 3, namely the number of the backing plates 54 is two, the carbon fiber plate 4 is positioned between the two backing plates 54, and the fixing screw 52 penetrates through the backing plates 54 and is connected with the backing plates in a sliding manner. The center of the top surface of the fixed steel plate 51 is fixedly provided with a limit bump 511, the limit bump 511 is a square block, the bottom surface of the carbon fiber plate 4 is provided with a limit groove 41 matched with the limit bump 511, and the limit bump 511 is fixedly arranged in the limit groove 41.
When the carbon fiber plate 4 is in a fixed state, the top of the carbon fiber plate 4 is positioned in the mounting groove 34, the fixed steel plate 51 is clamped between the backing plate 54 and the fixing nut 53, and the carbon fiber plate 4 is clamped between the fixed steel plate 51 and the concrete plate 3, so that the carbon fiber plate 4 is stably mounted.
Referring to fig. 3 and 5, the protective assembly 6 includes a protective cover 61, the protective cover 61 is disposed along the length direction of the main beam 11, and the protective cover 61 is in a hollow square shape with an open top end. The open end of the protective cover 61 faces the bottom surface of the concrete slab 3, the top surfaces of the two side walls of the protective cover 61 are in contact with the bottom surface of the concrete slab 3, and the carbon fiber plate 4 and the plurality of fixing assemblies 5 are all positioned in the protective cover 61. Two lateral walls of protection casing 61 are respectively to keeping away from carbon fiber plate 4 direction vertical set firmly mounting panel 62, and the quantity of mounting panel 62 is two promptly, and mounting panel 62 top surface and concrete slab 3 bottom surface are inconsistent. A plurality of fixing screws 63 are arranged between the mounting plate 62 and the concrete slab 3, a plurality of fixing screw rods 52 are uniformly distributed along the length direction of the girder 11, the screw rods of the fixing screws 63 penetrate through the mounting plate 62 and extend into the concrete slab 3, the screw rods of the fixing screws 63 are connected with the mounting plate 62 in a sliding manner, and the screw rods of the fixing screws 63 are fixedly connected with the concrete slab 3, namely, the mounting plate 62 is fixedly mounted on the concrete slab 3 through the plurality of fixing screws 63.
The bridge fiber reinforced structure of the embodiment of the application is characterized in that a concrete plate 3 is arranged on the bottom surface of a girder 11, a carbon fiber cloth 2 is arranged between the concrete plate 3 and the girder 11, a carbon fiber plate 4 is arranged on the bottom surface of the concrete plate 3, and the carbon fiber plate 4 is fixedly arranged on the concrete plate 3 through mutual matching among a fixing steel plate 51, a fixing screw 52, a fixing nut 53 and a base plate 54.
Owing to do not adopt the adhesive to fix carbon fiber plate 4 on 11 bottom surfaces of girder in this application, and carbon fiber plate 4 fixes on concrete slab 3, can not lead to the fact destruction to the inner structure of girder 11, has reduced the influence of the original bearing capacity of carbon fiber plate 4 installation to girder 11. Meanwhile, the carbon fiber cloth 2 is vertical to the carbon fiber plate 4, and the bearing capacity of the fiber reinforced structure is further improved through the mutual matching of the carbon fiber cloth 2 and the carbon fiber plate 4; through the mutual matching of the reinforcing steel bars 32 and the connecting steel bars 33, an interwoven net is formed in the concrete slab 3, so that the stress uniformity and the bearing capacity of the concrete slab 3 are improved; the two ends of the concrete plate 3 extend into the supporting blocks 12, and the concrete plate 3 is formed by casting concrete in situ, so that the connection strength of the concrete plate 3, the two supporting blocks 12, the main beam 11 and the carbon fiber cloth 2 is effectively improved, and the service effect and the service life of the fiber reinforced structure are improved; by mounting the protective cover 61 on the concrete slab 3, the service life of the fixing assembly 5, the carbon fiber plate 4 is increased.
Example 2
The embodiment of the application discloses a construction method of a bridge fiber reinforced structure, which comprises the following steps:
a plurality of carbon cloth 2 bond in the bottom surface of girder 11, and a plurality of carbon cloth 2 are along 11 length direction evenly distributed of girder 11, and carbon cloth 2 sets up along 11 width direction of girder.
Fixing grooves 121 are formed in the two supporting blocks 12 respectively, a plurality of mounting holes 122 are formed in the side walls of the fixing grooves 121, connecting reinforcements 33 are mounted between the two reinforcing reinforcements 32, then the reinforcing reinforcements 32 are mounted in the mounting holes 122 of the two supporting blocks 12, and the connecting reinforcements 33 are moved, so that the connecting reinforcements 33 of two adjacent groups are distributed along the length of the main beam 11 in a staggered manner.
The lower template is installed between the two supporting blocks 12 and is a square template, a plurality of strip-shaped protrusions used for forming the installation grooves 34 are fixedly arranged on the top surface of the lower template, a plurality of fixing screw rods 52 are installed on the lower template, the side templates are installed at the two ends of the girder 11 in the width direction of the girder 11 respectively and are square templates, and cavities are formed between the lower template, the two side templates, the two supporting blocks 12, the girder 11 and the fixing grooves 121.
Concrete is poured in the cavity, the concrete is maintained and formed, the lower template and the two side templates are removed to form a concrete slab 3, at the moment, the reinforcing steel bars 32, the connecting steel bars 33 and the fixing screw rods 52 are all fixed in the concrete slab 3, the concrete slab 3 is fixedly connected with the two supporting blocks 12, the main beam 11 and the carbon fiber cloth 2, the top surface of the concrete slab 3 forms a yielding groove 31 at the carbon fiber cloth 2, and the bottom surface of the concrete slab 3 forms an installation groove 34 at the strip-shaped protruding part of the lower template.
The backing plates 54 are placed on the top surfaces of the two ends of the fixed steel plate 51, the fixed steel plate 51 is stretched across the carbon fiber plate 4, the bottom end of the fixed screw 52 penetrates through the backing plates 54 and the fixed steel plate 51, then the fixed nut 53 is installed on the fixed screw 52, and the fixed steel plate 51 is fixed by rotating the fixed nut 53.
The opening of the protective cover 61 is directed to the bottom surface of the concrete slab 3 to make the mounting plate 62 contact with the bottom surface of the concrete slab 3, and then the mounting plate 62 is fixedly mounted on the concrete slab 3 by the fixing screw 63.
According to the construction method of the bridge fiber reinforced structure, the strip-shaped bulges are arranged on the top surface of the lower template, and the mounting grooves 34 can be formed when concrete is cured to form the concrete plates 3; the fixing screw 52 is arranged on the lower template, when the concrete is cured to form the concrete plate 3, the fixing of the concrete plate 3 and the fixing screw 52 is directly realized, the concrete plate 3 does not need to be perforated and the fixing screw 52 is arranged, and the connecting strength of the concrete plate 3 and the fixing screw 52 is improved; when concrete is maintained to form the concrete slab 3, the abdicating groove 31 is formed, the connection strength of the concrete slab 3 and the carbon fiber cloth 2 is increased, the connection strength of the concrete slab 3, the two supporting blocks 12 and the main beam 11 is also increased, the effect of the fiber reinforced structure is improved, and the construction of the fiber reinforced structure is facilitated.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a bridge fiber reinforced structure, its is used for consolidating bridge (1), and bridge (1) includes girder (11), two supporting shoe (12) that set firmly in girder (11) bottom surface, the bottom surface of supporting shoe (12) has set firmly pillar (13), its characterized in that: the fiber reinforced structure comprises a plurality of carbon fiber cloth (2) which is distributed along the length direction of a girder (11) and is fixedly arranged on the bottom surface of the girder (11), a concrete plate (3) which is arranged along the length direction of the girder (11) and two ends of which extend into two supporting blocks (12) respectively, a plurality of carbon fiber plates (4) which are distributed along the width direction of the girder (11) and are arranged on the bottom surface of the concrete plate (3), and a fixing component (5) which is arranged on the concrete plate (3) and is used for fixing the carbon fiber plates (4), wherein the carbon fiber cloth (2) is arranged along the width direction of the girder (11), the carbon fiber plates (4) are arranged along the length direction of the girder (11), the concrete plate (3) is formed by concrete cast-in-place, the top surface of the concrete plate (3) is in contact with the bottom surface of the girder (11), and the top surface of the concrete plate (3) is provided with, and the side surfaces of the two supporting blocks (12) are respectively provided with a fixing groove (121) matched with the concrete slab (3).
2. A bridge fibre reinforced structure according to claim 1, wherein: the quantity of fixed subassembly (5) is a plurality of, and is a plurality of fixed subassembly (5) distributes along girder (11) length direction, fixed subassembly (5) including span carbon fiber board (4) and with carbon fiber board (4) inconsistent fixed steel sheet (51), two be located carbon fiber board (4) both sides respectively fixed screw rod (52), two respectively with two fixed screw rod (52) threaded connection's fixation nut (53), the top of fixed screw rod (52) stretch into in concrete slab (3) and rather than fixed connection, bottom run through fixed steel sheet (51) and rather than the connection of sliding, fixed steel sheet (51) clamp is tightly between fixation nut (53) and concrete slab (3).
3. A bridge fibre reinforced structure according to claim 2, wherein: the fixed steel plate (51) is provided with backing plates (54) on the two sides of the carbon fiber plate (4) respectively, the backing plates (54) are located between the fixed steel plate (51) and the concrete plate (3), and the fixed screw (52) penetrates through the backing plates (54) and is connected with the backing plates in a sliding mode.
4. A bridge fibre reinforced structure according to claim 2, wherein: the top surface of the fixed steel plate (51) is fixedly provided with a limiting convex block (511), and the bottom surface of the carbon fiber plate (4) is provided with a limiting groove (41) matched with the limiting convex block (511).
5. A bridge fibre reinforced structure according to claim 1, wherein: the top of the carbon fiber plate (4) extends into the concrete plate (3), the bottom surface of the concrete plate (3) is provided with a mounting groove (34), and the top of the carbon fiber plate (4) is positioned in the mounting groove (34).
6. A bridge fibre reinforced structure according to claim 1, wherein: be provided with protection subassembly (6) that are used for protecting fixed subassembly (5) on concrete slab (3), protection subassembly (6) are including top end opening and inside hollow protection casing (61), the opening of protection casing (61) is towards concrete slab (3), carbon fiber plate (4), fixed subassembly (5) are located protection casing (61), protection casing (61) demountable installation is on concrete slab (3).
7. A bridge fibre reinforced structure according to claim 6, wherein: protection casing (61) lateral wall is to keeping away from carbon fiber plate (4) direction and set firmly mounting panel (62) inconsistent with concrete slab (3) bottom surface, be provided with a plurality of set screw (63) on mounting panel (62), mounting panel (62) are installed on concrete slab (3) through a plurality of set screw (63).
8. A bridge fibre reinforced structure according to claim 1, wherein: the reinforced concrete slab is characterized in that a plurality of reinforcing steel bars (32) distributed along the width direction of the main beam (11) are fixedly arranged in the concrete slab (3), the reinforcing steel bars (32) are arranged along the length direction of the main beam (11), and two ends of each reinforcing steel bar (32) extend into the supporting block (12) and are fixedly connected with the supporting block.
9. A bridge fibre reinforced structure according to claim 8, wherein: concrete slab (3) internal setting has a plurality of connecting reinforcement (33), and is a plurality of connecting reinforcement (33) divide into the multiunit along girder (11) width direction, and adjacent two sets of a plurality of connecting reinforcement (33) are along girder (11) length direction crisscross distribution, connecting reinforcement (33) are 8 fonts and cover and establish between adjacent two reinforcing bar (32) and realize the connection of adjacent two reinforcing bar (32).
10. A method of constructing a fibre-reinforced bridge structure according to any one of claims 1 to 9, wherein: the method comprises the following steps:
a plurality of carbon fiber cloths (2) are bonded to the bottom surface of the main beam (11), the plurality of carbon fiber cloths (2) are distributed along the length direction of the main beam (11), and the carbon fiber cloths (2) are arranged along the width direction of the main beam (11);
fixing grooves (121) are respectively formed in the two supporting blocks (12), a lower template is installed between the two supporting blocks (12), side templates are respectively installed at two ends of the main beam (11) in the width direction of the main beam, and a cavity is formed among the lower template, the two side templates, the two supporting blocks (12), the main beam (11) and the fixing grooves (121);
pouring concrete in the cavity, curing and molding the concrete, removing the lower template and the two side templates to form a concrete plate (3), fixing the concrete plate (3), the two supporting blocks (12), the main beam (11) and the carbon fiber cloth (2), and forming a abdicating groove (31) on the top surface of the concrete plate (3) at the carbon fiber cloth (2);
a plurality of carbon fiber plates (4) are fixedly installed on the bottom surface of the concrete plate (3), the plurality of carbon fiber plates (4) are distributed along the width direction of the main beam (11), and the carbon fiber plates (4) are arranged along the length direction of the main beam (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110305203.1A CN112982199B (en) | 2021-03-19 | 2021-03-19 | Bridge fiber reinforced structure and construction method thereof |
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| CN202110305203.1A CN112982199B (en) | 2021-03-19 | 2021-03-19 | Bridge fiber reinforced structure and construction method thereof |
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Citations (9)
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