CN214401378U

CN214401378U - Reinforced concrete truss arch bridge main arch rib reinforced structure

Info

Publication number: CN214401378U
Application number: CN202120231259.2U
Authority: CN
Inventors: 王瑞达; 杨凯; 陈娟; 李强兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-15
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a reinforced concrete truss arch bridge main arch rib reinforced structure, including steel sheet and two connecting plates, the punching press is equipped with two kinks on the steel sheet, two the kink is all perpendicular with the steel sheet, two equal punching press is equipped with two connecting portion on the connecting plate, two the rectangle through-hole has all been seted up on the connecting portion, the joint has the fixture block in the rectangle through-hole, the fixture block welding is in one side of kink, the one end set screw hole of connecting plate is kept away from to connecting portion, screw hole female connection has the bolt, the one end of bolt is passed the screw hole and is connected with the fixture block contact, both ends all incline the punching press and are equipped with linking portion about steel sheet and kink. The utility model discloses, can improve the component rigidity who consolidates the bridge arch rib, improve structure bearing capacity, consolidate the effectual rigidity that improves main arch rib in back and increase full-bridge bearing capacity, construction period need not to block the traffic for a short time moreover.

Description

Reinforced concrete truss arch bridge main arch rib reinforced structure

Technical Field

The utility model relates to a bridge reinforcement technical field especially relates to a reinforced concrete truss arch bridge owner arch rib reinforced structure.

Background

The reinforced concrete truss arch bridge is a light arch bridge rich in the special national style, is a combination of a truss and an arch, has light self-weight and small arch foot stress, reduces the requirement on the bearing capacity of a foundation, can be well suitable for areas with low bearing capacity such as soft soil or loess and the like, has high traffic acceleration, lower original design load level of the bridge, serious potential safety hazard and frequent prevention and treatment of diseases of bridge arch ribs along with the high-speed development of the society, and has the advantages that under the specific conditions of high traffic acceleration, low original design load level of the bridge, overload operation and the like in recent years, the existing reinforced concrete truss arch bridge faces higher pressure during use, serious potential safety hazard exists, and the bridge arch ribs need to be frequently prevented and treated, and a newly-built pier is needed to support and reinforce the bridge when necessary, or steel members are directly constructed on the arch ribs to support and reinforce.

At present, the rigidity of a component for reinforcing the bridge arch rib is low, the structural bearing capacity is insufficient, the rigidity of the main arch rib cannot be effectively improved after the component is reinforced, the full-bridge bearing capacity is increased, and traffic needs to be blocked for a long time for construction for a long construction period.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art that the component rigidity of consolidating bridge arch rib is low, the structure bearing capacity is not enough, and the rigidity that can't effectual improvement main arch rib increases full-bridge bearing capacity after consolidating, and the construction period also needs to block the problem that the traffic was under construction for a long time moreover, and the main arch rib reinforced structure of reinforced concrete truss arch bridge that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a reinforced concrete truss arched bridge main arch rib reinforced structure, includes steel sheet and two connecting plates, the punching press is equipped with two kink on the steel sheet, two the kink is all perpendicular with the steel sheet, two all the punching press is equipped with two connecting portion on the connecting plate, two the rectangle through-hole has all been seted up on the connecting portion, the joint has the fixture block in the rectangle through-hole, the fixture block welding is in one side of kink, connecting portion keep away from the one end of connecting plate and seted up threaded hole, screw hole female connection has the bolt, the one end of bolt is passed the screw hole and is connected with the fixture block contact, both ends all slope punching presses and are equipped with the linking portion about steel sheet and kink.

Preferably, the top of steel sheet is equipped with a plurality of evenly distributed's horizontal reinforcing bar, and is a plurality of the welding of the below of horizontal reinforcing bar has a plurality of evenly distributed's vertical reinforcing bar, the both ends of vertical reinforcing bar weld respectively on the relative one side of two kinks, the perpendicular downward bending of one end of horizontal reinforcing bar is equipped with first hook portion, the perpendicular upward bending of the other end of horizontal reinforcing bar is equipped with second hook portion.

Preferably, the top of steel sheet is equipped with two spacing, two the common welding of one side that spacing is relative has a plurality of evenly distributed's steel lacing bar, one side of steel lacing bar and one side fixed connection of kink are kept away from to spacing one of them one side of kink is through inclined hole fixedly connected with grout pipe.

Preferably, two horizontal steel batten plates which are symmetrically distributed are welded between the two connecting plates, oblique steel batten plates are arranged below the two horizontal steel batten plates, and two ends of each oblique steel batten plate are respectively welded to the connecting portions on the same side of the two connecting plates.

Compared with the prior art, the utility model provides a reinforced concrete truss arch bridge owner arch rib reinforced structure possesses following beneficial effect:

1. the reinforced concrete truss arch bridge main arch rib reinforcing structure comprises a main arch rib reinforcing unit, a connecting plate, a steel plate and other reinforcing units, wherein the size of the main arch rib reinforcing unit and the radian of the main arch rib are measured on site, the steel members of the reinforcing unit, such as the connecting plate and the steel plate, are manufactured according to the size, the connecting plate is connected with the upper edge of the main arch rib in a clamping manner when being installed, the steel plate is connected with the lower edge of the main arch rib from bottom to top in a clamping manner, the connecting part on the connecting plate is connected with the lower edge of the main arch rib through a rectangular through hole in a clamping manner, a bolt is screwed in a threaded hole by a wrench, the bolt extends into the rectangular through hole to extrude the clamping block, the clamping block drives a bending part to move the steel plate upwards under the stress of the clamping block, when the steel plate moves upwards, a limiting strip is in contact with the lower edge of the main arch rib, the steel plate and the clamping block stop moving upwards, the connecting part on the connecting plate moves downwards under the reverse acting force of the bolt, and the clamping block are matched with each other to enable the reinforcing unit to be stably connected to the main arch rib, then weld steel sheet and the horizontal steel lacing plate and the slant steel lacing plate between the joint portion and the connecting plate on the kink, after the welding is accomplished, steel sheet, connecting plate, horizontal steel lacing plate and slant steel lacing plate constitute a whole jointly to first hook portion and second hook portion on the transverse reinforcement all correspond and stretch into in the adjacent reinforcement unit, and then can make the work progress quick simple, and need not to block the traffic.

2. The reinforced concrete truss arch bridge main arch rib reinforcing structure is characterized in that grouting is performed from a grouting pipe through the grouting pipe, vibration equipment is used for tamping, the spacing strips and the steel batten strips arranged on the bending parts can limit the space between the main arch rib and the steel plate, the grouting material contained in the space is larger when the space is larger, the strength of the bending parts on the steel plate can be improved, the two bending parts are prevented from deforming under stress when grouting, transverse reinforcing steel bars and longitudinal reinforcing steel bars arranged on the bending parts after the grouting material is hardened can form reinforcing rib components arranged in a longitude and latitude mode, the steel plate, the connecting plate, the transverse steel batten plate, the oblique steel batten plate, the transverse reinforcing steel bars, the longitudinal reinforcing steel bars and the grouting material can be quickly reinforced on the lower edge of the main arch rib, the reinforcing structure is formed by integrating a steel structure and a reinforced concrete structure after the grouting material is hardened, and therefore the structural strength of the main arch rib can be effectively improved, the bearing capacity of the bridge is improved.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses, can improve the component rigidity who consolidates the bridge arch rib, improve structure bearing capacity, the effectual rigidity that improves main arch rib increases full-bridge bearing capacity after consolidating, and construction period need not to block the traffic for a short time moreover.

Drawings

Fig. 1 is a schematic structural view of a reinforced concrete truss arch bridge main arch rib reinforcing structure provided by the utility model;

fig. 2 is a cross-sectional view of a steel plate in a reinforced concrete truss arch bridge main arch rib reinforcing structure provided by the utility model;

fig. 3 is a left side view of a steel plate in the reinforced concrete truss arch bridge main arch rib reinforcing structure provided by the utility model;

fig. 4 is a schematic structural view of a connecting plate, a transverse steel batten plate and an oblique steel batten plate in a reinforced structure of a main arch rib of a reinforced concrete truss arch bridge provided by the utility model;

fig. 5 is the utility model provides a reinforced concrete truss arch bridge owner arch rib reinforced structure's installation effect picture.

In the figure: 1. a connecting plate; 2. a connecting portion; 3. a joining section; 4. transverse reinforcing steel bars; 5. a first hook portion; 6. a steel plate; 7. a clamping block; 8. a bolt; 9. a second hook portion; 10. a limiting strip; 11. a bending section; 12. a lateral steel gusset plate; 13. oblique steel batten plates; 14. a steel lacing bar; 15. longitudinal reinforcing steel bars; 16. and (7) grouting pipes.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, a reinforced concrete truss arch bridge main arch rib reinforcing structure comprises a steel plate 6 and two connecting plates 1, wherein two bending portions 11 are stamped on the steel plate 6, the two bending portions 11 are perpendicular to the steel plate 6, the bending portions 11 and the steel plate 6 jointly form a U-shaped supporting component, the U-shaped supporting component can be directly clamped and connected on the lower edge of a main arch rib to form a grouting space, two connecting portions 2 are stamped on the two connecting plates 1, rectangular through holes are respectively formed in the two connecting portions 2, clamping blocks 7 are clamped and connected in the rectangular through holes, the clamping blocks 7 are welded on one sides of the bending portions 11, the connecting portions arranged on the connecting plates 1 form a connecting piece with a saddle-shaped structure, the rectangular through holes are clamped and matched with the clamping blocks 7, so that the connecting plates 1 and the steel plate 6 are quickly clamped and connected on the main arch rib to form a reinforcing unit, and one end of each connecting portion 2, which is far away from the connecting plate 1, is provided with a threaded hole, the threaded hole is internally threaded with a bolt 8, one end of the bolt 8 penetrates through the threaded hole and is in contact connection with a clamping block 7, the left end and the right end of each of a steel plate 6 and a bending part 11 are obliquely punched and provided with an engaging part 3, the engaging parts 3 can be connected with adjacent reinforcing units to facilitate later-stage welding and reinforcing, a plurality of uniformly-distributed transverse steel bars 4 are arranged above the steel plate 6, a plurality of uniformly-distributed longitudinal steel bars 15 are welded below the plurality of transverse steel bars 4, two ends of the longitudinal steel bars 15 are respectively welded on one side opposite to the two bending parts 11, one end of each transverse steel bar 4 is vertically downwards bent and provided with a first hook part 5, the other end of each transverse steel bar 4 is vertically upwards bent and provided with a second hook part 9, after the adjacent reinforcing units are connected through the engaging parts 3, the first hook parts 5 and the second hook parts 9 on the transverse steel bars 4 correspondingly extend into the adjacent reinforcing units, after grouting, a reinforced structure is formed by the steel plate 6, the transverse steel bar 4, the longitudinal steel bar 5 and later grouting materials, two limiting strips 10 are arranged above the steel plate 6, a plurality of uniformly distributed batten strips 14 are welded on one sides of the two limiting strips 10, one side, far away from the batten strips 14, of the limiting strips 10 is fixedly connected with one side of each bent part 11, one side of one bent part 11 is fixedly connected with a grouting pipe 16 through an inclined hole, the limiting strips 10 and the batten strips 14 are matched to limit a grouting space between the steel plate 6 and the lower edge of a main arch rib, two transverse batten plates 12 which are symmetrically distributed are welded between the two connecting plates 1, oblique batten plates 13 are arranged below the two transverse batten plates 12, two ends of each oblique batten plate 13 are respectively welded on connecting parts 2 of the same side of the two connecting plates 1, and the transverse batten plates 12 and the oblique batten plates 13 can be connected with two adjacent reinforced units, and the horizontal steel gusset plate 12 and the oblique steel gusset plate 13 are both installed by means of field welding.

In the utility model, when in use, the size of the main arch rib of the bridge and the radian of the main arch rib are measured on site, steel members of the reinforcing unit such as the connecting plate 1 and the steel plate 6 are manufactured according to the size, the connecting plate 1 is clamped on the upper edge of the main arch rib when in installation, then the steel plate 6 is clamped on the lower edge of the main arch rib from bottom to top, the connecting part on the connecting plate 1 is clamped with the fixture block 7 on the steel plate 6 through the rectangular through hole at the moment, the reinforcing unit is installed and fixed, then the bolt 8 is screwed by a spanner and rotates in the threaded hole, at the moment, the bolt 8 extends into the rectangular through hole to extrude the fixture block 7, the fixture block 7 drives the bending part 11 to move the steel plate 6 upwards under the force, when the steel plate 6 moves upwards, the limit strip 10 is contacted with the lower edge of the main arch rib, at the moment, the steel plate 6 and the fixture block 7 stop moving upwards, the connecting part 2 on the connecting plate 1 is moved downwards under the reverse acting force of the bolt 8, and the fastening unit can be mutually matched with the fixture block 7 to firmly clamped on the main arch rib, then welding the steel plate 6, the connecting part 3 on the bending part, the transverse steel batten plate 12 and the oblique steel batten plate 13 between the connecting plates 1, after the welding is finished, the steel plate 6, the connecting plates 1, the transverse steel batten plate 12 and the oblique steel batten plate 13 form a whole together, and the first hook part 5 and the second hook part 9 on the transverse steel bar 4 correspondingly extend into the adjacent reinforcing units, so that the construction process is quick and simple, the traffic does not need to be blocked, grouting is finally carried out from the grouting pipe 16, tamping is carried out by using a vibrating device, the spacing strip 10 and the steel batten strip 14 arranged on the bending part 11 can limit the space size between the main arch rib and the steel plate 6, the grouting material contained in the larger space is larger, the strength of the bending part 11 on the steel plate 6 can also be improved, the stress deformation of the two bending parts 11 during grouting is avoided, the transverse steel bar 4 and the longitudinal steel bar 15 arranged on the bending part 11 after the grouting material is hardened can form a reinforcing rib component arranged in a longitude and latitude direction, and then can consolidate steel sheet 6, connecting plate 1, horizontal steel batten plate 12, slant steel batten plate 13, horizontal reinforcing bar 4 and longitudinal reinforcement 15 and grout material fast at the lower edge of main arch rib, reinforced structure is become by steel construction and reinforced concrete structure integration after the grout hardens to can effectual improvement main arch rib's structural strength, improve the bearing capacity of bridge.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A reinforced concrete truss arch bridge main arch rib reinforcing structure comprises a steel plate (6) and two connecting plates (1), it is characterized in that two bending parts (11) are stamped on the steel plate (6), the two bending parts (11) are both vertical to the steel plate (6), two connecting parts (2) are stamped on the two connecting plates (1), rectangular through holes are arranged on the two connecting parts (2), a clamping block (7) is clamped in the rectangular through hole, the clamping block (7) is welded on one side of the bending part (11), one end of the connecting part (2) far away from the connecting plate (1) is provided with a threaded hole, a bolt (8) is connected with the threaded hole in an internal thread manner, one end of the bolt (8) penetrates through the threaded hole and is in contact connection with the clamping block (7), the left end and the right end of the steel plate (6) and the bent part (11) are obliquely stamped and provided with connecting parts (3).

2. A reinforced concrete truss arch bridge main arch rib reinforcing structure as claimed in claim 1, wherein a plurality of transverse reinforcing steel bars (4) are uniformly distributed above the steel plate (6), a plurality of longitudinal reinforcing steel bars (15) are uniformly distributed below the transverse reinforcing steel bars (4), two ends of the longitudinal reinforcing steel bars (15) are respectively welded on one side opposite to the two bending parts (11), one end of each transverse reinforcing steel bar (4) is vertically bent downwards to form a first hook part (5), and the other end of each transverse reinforcing steel bar (4) is vertically bent upwards to form a second hook part (9).

3. The reinforced concrete truss arch bridge main arch rib reinforcing structure of claim 1, wherein two limiting strips (10) are arranged above the steel plate (6), a plurality of uniformly distributed batten strips (14) are welded on one side of the two limiting strips (10) which is opposite to each other, one side of the limiting strips (10) far away from the batten strips (14) is fixedly connected with one side of the bent parts (11), and one side of one bent part (11) is fixedly connected with a grouting pipe (16) through an inclined hole.

4. The main arch rib reinforcing structure of the reinforced concrete truss arch bridge according to claim 1, wherein two symmetrically distributed transverse steel batten plates (12) are welded between the two connecting plates (1), oblique steel batten plates (13) are arranged below the two transverse steel batten plates (12), and two ends of each oblique steel batten plate (13) are respectively welded on the connecting parts (2) on the same side of the two connecting plates (1).