CN217078475U - Prestressed concrete continuous slab bridge reinforced structure - Google Patents

Abstract

The utility model relates to a road traffic building technical field specifically is a continuous slab bridge reinforced structure of prestressed concrete, including girder and pier, the girder carries on in the upper end of pier, is provided with the triangle additional strengthening between the left and right sides of girder and the pier, and the lower extreme of girder is provided with the post of inserting of pegging graft in pier upper end inner chamber, the triangle additional strengthening comprises the roof of fixing terminal surface under the girder, fixes locating plate and the centre gripping in the pier side at inboard preceding curb plate and the posterior lateral plate of roof, and beneficial effect is: by arranging the assembled triangular reinforcing frame, the mounting precision of the triangular frame is greatly enhanced, the connecting strength and the supporting deformation strength are improved, and the structure is more stable; through setting up the centre gripping of constant head tank to the front and back curb plate, improved with the joint strength of pier, cooperation transversely extends split bolt and extension rod for girder extrusion's effort is shared on reinforcing plate and triangle reinforcing frame downwards, has increased its bearing strength greatly.

Description

Prestressed concrete continuous slab bridge reinforced structure

Technical Field

The utility model relates to a road traffic building technical field specifically is a continuous slab bridge reinforced structure of prestressed concrete.

Background

The construction of many prestressed concrete continuous slab bridges is long, the load grade of the prestressed concrete continuous slab bridges is difficult to match with the current traffic conditions, and especially the bending resistance and the shearing resistance are insufficient, so that potential safety hazards are caused. Therefore, in order to adapt it to the traffic load conditions of today, it is often necessary to reinforce the bridge.

The existing reinforcement measures generally comprise external prestressed tendon reinforcement, prestressed carbon fiber plate reinforcement, carbon fiber cloth reinforcement and the like, but the reinforcement methods are high in manufacturing cost, and the effects of the reinforcement methods are not obvious, high in cost and complex in disassembly and repair as found by carrying out a load test on site; the existing reinforcing measures are also carried out in a mode of a triangular support, but the inclined strut of the triangular support has no self-fixing measures except two ends, and because the rigidity of the triangular support is low, and the inclined steel plate cannot be flat and straight under an ideal state, when a bridge passes, the steel plate is prone to bending deformation, so that the reinforcing measures are similar to the nominal measures.

Therefore, the prestressed concrete continuous slab bridge reinforcing structure is provided, and the problem of fastening and supporting strength of a bridge reinforcing tripod is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a continuous slab bridge reinforced structure of prestressed concrete to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a continuous slab bridge reinforced structure of prestressed concrete, includes girder and pier, the girder carries on in the upper end of pier, is provided with the triangle reinforcing frame between the left and right sides of girder and the pier, and the lower extreme of girder is provided with the inserted column of pegging graft in pier upper end inner chamber, the triangle reinforcing frame comprises at inboard preceding curb plate and the posterior lateral plate of roof the roof of terminal surface, the locating plate of fixing in the pier side under the girder and centre gripping, be provided with the multiunit T shape reinforcing plate of linear distribution between preceding curb plate and the posterior lateral plate, be provided with the extension rod of transverse connection locating plate on the T shape reinforcing plate.

Preferably, the upper end left and right sides symmetry of pier is provided with a pair of constant head tank, and the upper end of pier is provided with the slot, insert the vertical grafting of post on the slot.

Preferably, the locating plate pressfitting is in the outside of constant head tank, one side vertical welding that preceding curb plate and posterior lateral plate are close to the pier has first picture peg and second picture peg, first picture peg and second picture peg pressfitting are pegged graft between locating plate and pier.

Preferably, all be provided with the counterpoint hole that multiunit horizontal reorganization that upper and lower linear distribution runs through on locating plate, the post of inserting, pier, first picture peg and the second picture peg, counterpoint hole and grafting have the split bolt of nut fastening.

Preferably, a plurality of groups of embedded bolts are embedded in the lower end face of the main beam, a fixed transverse plate is arranged at the upper end of the T-shaped reinforcing plate, the front side and the rear side of the T-shaped reinforcing plate are pressed on the inner walls of the front side plate and the rear side plate, and the fixed transverse plate and the top plate are fixedly installed on the outer wall of the lower end of the main beam through the embedded bolts.

Preferably, a through hole which penetrates through the T-shaped reinforcing plate in the transverse direction is vertically formed in the T-shaped reinforcing plate, and an extension rod is inserted into the through hole.

Preferably, the extension rod transversely runs through the multiunit T shape reinforcing plate of linear distribution, and the one end of extension rod is provided with the connection end cover that the screw thread rotated the installation, the opposite side of connecting the end cover is rotated and is installed the tip at split bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the assembly type triangular reinforcing frame is arranged, the mounting precision of the tripod is greatly enhanced, the position deviation caused by welding is reduced, the connection strength and the support deformation strength are improved, and the structure is more stable;

2. the utility model discloses a set up the constant head tank to the centre gripping of front and back curb plate, improved with the joint strength of pier, cooperation transversely extends to stay bolt and extension rod for girder extruded effort is shared on reinforcing plate and triangle reinforcing frame downwards, has increased its bearing strength greatly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the triangular reinforcing frame of the present invention;

fig. 3 is a top view of the triangular reinforcing frame of the present invention.

In the figure: 1. a main beam; 2. a bridge pier; 3. a triangular reinforcing frame; 4. a top plate; 5. a T-shaped reinforcing plate; 6. a rear side plate; 7. positioning a plate; 8. oppositely pulling the bolts; 9. an extension rod; 10. connecting an end cover; 11. positioning a groove; 12. a front side plate; 13. fixing the transverse plate; 14. embedding bolts in advance; 15. a first board insert; 16. a second board plug; 17. a through hole; 18. aligning holes; 19. inserting a column; 20. and (4) a slot.

Detailed Description

The technical solutions 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution:

the utility model provides a continuous slab bridge reinforced structure of prestressed concrete, including girder 1 and pier 2, girder 1 carries on in the upper end of pier 2, the lower extreme of girder 1 is provided with the post 19 of inserting of pegging graft in 2 upper end inner chambers of pier, the upper end left and right sides symmetry of pier 2 is provided with a pair of constant head tank 11, the upper end of pier 2 is provided with slot 20, insert the vertical grafting of post 19 on slot 20, the grafting of post 19 and slot 20 is inserted in the utilization, form girder 1 and pier 2's the position location of carrying on, and then the injectment of transverse position has been strengthened.

Be provided with triangle additional strengthening 3 between the left and right sides of girder 1 and pier 2, triangle additional strengthening 3 is by fixing roof 4 at girder 1 lower extreme face, fix locating plate 7 and the centre gripping at 2 sides of pier and constitute at roof 4 inboard preceding curb plate 12 and posterior lateral plate 6, locating plate 7 pressfitting is in the outside of constant head tank 11, preceding curb plate 12 and posterior lateral plate 6 are close to one side vertical welding of pier 2 and have been connected first picture peg 15 and second picture peg 16, first picture peg 15 and 16 pressfittings of second picture peg are pegged graft between locating plate 7 and pier 2, plate through the grafting assembled is connected, the joint strength of triangle additional strengthening 3 and pier 2 has been improved.

Be provided with linear distribution's multiunit T shape reinforcing plate 5 between preceding curb plate 12 and the posterior lateral plate 6, girder 1's lower terminal surface is pre-buried to have multiunit embedded bolt 14, T shape reinforcing plate 5's upper end is provided with fixed diaphragm 13, both sides pressfitting is on preceding curb plate 12 and the inner wall of posterior lateral plate 6 around T shape reinforcing plate 5, fixed diaphragm 13 and roof 4 are all through embedded bolt 14 fixed mounting on girder 1's lower extreme outer wall, cooperation through fixed diaphragm 13 and embedded bolt 14, realize T shape reinforcing plate 5's vertical fixed mounting, utilize T shape reinforcing plate 5 to have increased the bearing capacity of 3 vertical directions of triangle reinforcing frame.

An extension rod 9 transversely connected with the positioning plate 7 is arranged on the T-shaped reinforcing plate 5, a plurality of groups of transversely-recombined through alignment holes 18 which are linearly distributed up and down are arranged on the positioning plate 7, the inserting columns 19, the bridge pier 2, the first inserting plate 15 and the second inserting plate 16, the alignment holes 18 and the pull bolts 8 which are fastened by inserting nuts are arranged in the alignment holes 18, a through hole 17 transversely penetrated through the T-shaped reinforcing plate 5 is vertically arranged, the extension rod 9 is inserted in the through hole 17 and connected with the extension rod 9 through the plurality of groups of linearly-distributed T-shaped reinforcing plates 5, one end of the extension rod 9 is provided with a connecting end cover 10 rotatably installed by threads, the other side of the connecting end cover 10 is rotatably installed at the end part of the pull bolt 8, most of the pressure applied by the main beam 1 is vertical downward extrusion, so as to cause the bending deformation of the triangular reinforcing frame 3 in the vertical direction, the downward extrusion force 2 is enabled to extend and disperse to the T-shaped reinforcing plate 5 by the matching of the pull bolts 8 and the extension rod 9, the bearing strength of the triangular reinforcing frame 3 is greatly increased, and the protection of the bridge pier 2 is improved.

The working principle is as follows: at first, the insertion of the insertion columns 19 and the insertion grooves 20 is utilized to position the carrying position of the main beam 1 and the bridge pier 2, so that the limitation of the transverse position is enhanced, the plate is connected through the insertion assembly type plate, the connection strength of the triangular reinforcing frame 3 and the bridge pier 2 is improved, the T-shaped reinforcing plate 5 is vertically and fixedly installed through the matching of the fixing transverse plate 13 and the embedded bolts 14, and the bearing pressure of the triangular reinforcing frame 3 in the vertical direction is increased by utilizing the T-shaped reinforcing plate 5.

The pressure that girder 1 was applyed is vertical decurrent extrusion mostly to cause the bending deformation of 3 vertical directions of triangle reinforcing frame, through the cooperation to stay bolt 8 and extension rod 9, make to the downward extrusion force extension dispersion of pier 2 to T shape reinforcing plate 5 on, increased 3 bearing strength of triangle reinforcing frame greatly, improved the protection to pier 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a continuous slab bridge reinforced structure of prestressed concrete, includes girder (1) and pier (2), its characterized in that: girder (1) is carried on the upper end of pier (2), is provided with triangle reinforcement (3) between the left and right sides of girder (1) and pier (2), and the lower extreme of girder (1) is provided with the post of inserting (19) of pegging graft in pier (2) upper end inner chamber, triangle reinforcement (3) comprise roof (4), locating plate (7) and the centre gripping of fixing terminal surface under girder (1) in roof (2) side at roof (4) inboard preceding curb plate (12) and posterior lateral plate (6), be provided with linear distribution's multiunit T shape reinforcing plate (5) between preceding curb plate (12) and posterior lateral plate (6), be provided with extension rod (9) of transverse connection locating plate (7) on T shape reinforcing plate (5).

2. The prestressed concrete continuous slab bridge reinforcement structure according to claim 1, wherein: the left side and the right side of the upper end of the pier (2) are symmetrically provided with a pair of positioning grooves (11), the upper end of the pier (2) is provided with a slot (20), and the inserting column (19) is vertically inserted into the slot (20).

3. The prestressed concrete continuous slab bridge reinforcement structure according to claim 1, wherein: locating plate (7) pressfitting is in the outside of constant head tank (11), one side vertical welding that preceding curb plate (12) and posterior lateral plate (6) are close to pier (2) has first picture peg (15) and second picture peg (16), first picture peg (15) and second picture peg (16) pressfitting are pegged graft between locating plate (7) and pier (2).

4. The prestressed concrete continuous slab bridge reinforcement structure according to claim 3, wherein: all be provided with alignment hole (18) that the horizontal reorganization of multiunit that upper and lower linear distribution runs through on locating plate (7), insert post (19), pier (2), first picture peg (15) and second picture peg (16), alignment hole (18) and grafting have split bolt (8) of nut fastening.

5. The prestressed concrete continuous slab bridge reinforcement structure according to claim 1, wherein: the lower end face of the main beam (1) is pre-embedded with multiple groups of pre-embedded bolts (14), the upper end of the T-shaped reinforcing plate (5) is provided with a fixing transverse plate (13), the front side and the rear side of the T-shaped reinforcing plate (5) are pressed on the inner walls of the front side plate (12) and the rear side plate (6), and the fixing transverse plate (13) and the top plate (4) are fixedly installed on the outer wall of the lower end of the main beam (1) through the pre-embedded bolts (14).

6. The prestressed concrete continuous slab bridge reinforcement structure according to claim 1, wherein: the T-shaped reinforcing plate (5) is vertically provided with a through hole (17) which transversely penetrates through, and an extension rod (9) is inserted into the through hole (17).

7. The prestressed concrete continuous slab bridge reinforcement structure according to claim 6, wherein: extension rod (9) transversely run through linear distribution's multiunit T shape reinforcing plate (5), and the one end of extension rod (9) is provided with connecting end cover (10) that the screw thread rotated the installation, the opposite side of connecting end cover (10) is rotated and is installed the tip at split bolt (8).

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