CN214116261U

CN214116261U - Anti-cracking device for highway bridge

Info

Publication number: CN214116261U
Application number: CN202022496470.5U
Authority: CN
Inventors: 杨威
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-09-03
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the technical field of the bridge crack control, especially, be an anti-cracking device for highway bridge, including left pier and right pier, the equal fixedly connected with bridge frame in top of left side pier and right pier, the bottom difference fixedly connected with intermediate strut pier and the connection crossbeam of bridge frame, the dashpot has all been seted up on the surface of left side pier, right pier and intermediate strut pier, the inner wall fixedly connected with guide arm of dashpot, the surface sliding connection crossbeam of guide arm. The utility model discloses a left pier, right pier, intermediate strut pier can share the power that the bridge received, and left pier, right pier, intermediate strut pier are connected through connecting the crossbeam simultaneously, utilize compression spring and reset spring's resilience force to cushion, have avoided indirectly that past vehicle is executed for a long time for it and is exerted the pressure and make the cracked condition appear in the bridge body to the effect of crack control resistance to compression has been reached.

Description

Anti-cracking device for highway bridge

Technical Field

The utility model relates to a bridge crack control technical field specifically is a crack control device for public road bridge roof beam.

Background

In the 30 s of the 20 th century, the sequential appearance of prestressed concrete and high-strength steel, the research on a material plasticity theory and a limit theory, the research on bridge vibration, the research on aerodynamics, the research on soil mechanics and the like have made great progress; therefore, scientific basis is provided for saving bridge building materials, reducing bridge weight, predicting foundation sinking depth and determining bearing capacity of the bridge, and modern bridge building materials can be divided into prestressed reinforced concrete bridges, reinforced concrete bridges and steel bridge bridges, which are generally constructed on rivers, lakes and seas and can enable vehicles, pedestrians and the like to pass smoothly.

The existing anti-cracking device for the highway bridge has the following problems:

1. in the using process of most of anti-cracking devices for highway bridges in the market, due to the fact that passing vehicles exert pressure on the bridges for a long time, cracks of different degrees can be generated, and the bridges can collapse due to heavy load;

2. most anti-cracking devices for highway bridges on the market can not buffer the impact force of an automobile, which accidentally rushes to the bridge edge and gives a protective guard, in the using process, so that the anti-collision effect can not be buffered, the safety of people passing by the bridge is further reduced, the safety is indirectly protected, and the effect of the times of accidents is also improved.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a crack control device for public road bridge roof beam has solved, can not cushion the unexpected problem towards the bridge limit and give the impact force of rail guard of car to the effect of crack control resistance to compression.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an anti-cracking device for a highway bridge comprises a left bridge pier and a right bridge pier, wherein the top ends of the left bridge pier and the right bridge pier are fixedly connected with a bridge frame, the bottom end of the bridge frame is respectively and fixedly connected with a middle supporting bridge pier and a connecting cross beam, the surfaces of the left bridge pier, the right bridge pier and the middle supporting bridge pier are all provided with buffer grooves, the inner wall of the buffer groove is fixedly connected with a guide rod, the surface of the guide rod is connected with a cross beam in a sliding way, the surface of the guide rod is sleeved with a compression spring, two ends of the compression spring are respectively and fixedly connected with a connecting beam and a buffer groove, a fixed beam is fixedly connected among the left pier, the right pier and the middle support pier, a first L-shaped block is fixedly connected on the surface of the fixed beam, the bottom end of the connecting beam is fixedly connected with a second L-shaped block, and a return spring is fixedly connected between the first L-shaped block and the second L-shaped block.

As a preferred technical scheme of the utility model, the top fixedly connected with fixed column of intermediate strut pier, the fixed surface of fixed column is connected with buffer, buffer's one end fixedly connected with guardrail.

As a preferred technical scheme of the utility model, buffer is including buffer beam and buffer cylinder, the inner wall fixedly connected with buffer spring of buffer cylinder, buffer spring's one end fixed connection sliding block, the one end fixed connection buffer beam of sliding block, the one end fixed connection guardrail of buffer beam, the one end fixed connection fixed column of buffer cylinder.

As an optimized technical scheme of the utility model, the fixed surface of guardrail is connected with the protection pad, the material of protection pad is rubber.

As an optimal technical scheme of the utility model, the inner wall of bridge frame is equipped with rubber crack control layer and crack control steel wire fibre, rubber crack control layer is located crack control steel wire fibre's the higher authority.

As an optimized technical scheme of the utility model, compression spring and reset spring's surface all scribbles anticorrosive paint, and anticorrosive paint's material is epoxy coating.

(III) advantageous effects

Compared with the prior art, the utility model provides a crack control device for highway bridge possesses following beneficial effect:

1. this crack control device for public road bridge roof beam can share the power that the bridge received through left pier, right pier, intermediate strut pier, couples together left pier, right pier, intermediate strut pier through connecting the crossbeam simultaneously, utilizes compression spring and reset spring's resilience force to cushion, has indirectly avoided the past vehicle to apply for it for a long time and has exerted the condition that the pressure makes the bridge body appear fissured to the effect of crack control resistance to compression has been reached.

2. This anti-cracking device for public road bridge roof beam is under the cooperation of buffer and the protection pad on guardrail surface for can cushion the car accident and dash to the bridge limit and give the impact force of rail guard, thereby can cushion the effect of anticollision, and then improved people and received the protection indirectly in the safety of self when this bridge of passing, also reduce the effect of the number of times that the accident took place.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of the buffering device of the present invention;

fig. 5 is a schematic view of the structure of the bridge material of the present invention.

In the figure: 1. a left pier; 2. a right bridge pier; 3. a bridge frame; 4. supporting a pier in the middle; 5. connecting the cross beam; 6. a fixed beam; 7. a buffer tank; 8. a guide bar; 9. a compression spring; 10. a rubber anti-cracking layer; 11. A first L-shaped block; 12. a second L-shaped block; 13. a return spring; 14. fixing a column; 15. a buffer device; 151. a buffer rod; 152. a buffer cylinder; 153. a buffer spring; 154. a slider; 16. a guardrail; 17. a protection pad; 18. anti-cracking steel wire fiber.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: an anti-cracking device for a highway bridge comprises a left bridge pier 1 and a right bridge pier 2, wherein the top ends of the left bridge pier 1 and the right bridge pier 2 are fixedly connected with a bridge beam frame 3, the bottom end of the bridge beam frame 3 is respectively and fixedly connected with a middle supporting bridge pier 4 and a connecting cross beam 5, the surfaces of the left bridge pier 1, the right bridge pier 2 and the middle supporting bridge pier 4 are respectively provided with a buffer groove 7, the inner wall of the buffer groove 7 is fixedly connected with a guide rod 8, the surface of the guide rod 8 is slidably connected with the connecting cross beam 5, the surface of the guide rod 8 is sleeved with a compression spring 9, the two ends of the compression spring 9 are respectively and fixedly connected with the connecting cross beam 5 and the buffer groove 7, the left bridge pier 1, fixedly connected with fixed beam 6 between right side pier 2 and the middle support pier 4, the fixed surface of fixed beam 6 is connected with first L-shaped piece 11, connects the bottom fixedly connected with second L-shaped piece 12 of crossbeam 5, and fixedly connected with reset spring 13 between first L-shaped piece 11 and the second L-shaped piece 12.

In this embodiment, can share the power that the bridge received through left pier 1, right pier 2, intermediate strut pier 3, couple together left pier 1, right pier 2, intermediate strut pier 4 through connecting crossbeam 5 simultaneously, utilize compression spring 9 and reset spring 13's resilience force to cushion, indirectly avoided the past vehicle to apply for it for a long time and demonstrate pressure for it and make the cracked condition appear in the bridge body to the effect of crack control resistance to compression has been reached.

Specifically, a fixed column 14 is fixedly connected to the top end of the intermediate support pier 4, a buffer device 15 is fixedly connected to the surface of the fixed column 14, and a guardrail 16 is fixedly connected to one end of the buffer device 15.

In this embodiment, through 15 one end fixedly connected with guardrails 16 of buffer to make when 16 receive the striking at the guardrail, can cross and cushion the striking dynamics, and then reduce the loss that 16 guardrails received.

Specifically, the buffering device 15 includes a buffering rod 151 and a buffering cylinder 152, a buffering spring 153 fixedly connected to an inner wall of the buffering cylinder 152, a sliding block 154 fixedly connected to one end of the buffering spring 153, a buffering rod 151 fixedly connected to one end of the sliding block 154, a guardrail 16 fixedly connected to one end of the buffering rod 151, and a fixing column 14 fixedly connected to one end of the buffering cylinder 152.

In this embodiment, the buffer rod 151 can be automatically reset by the elastic force through the arrangement of the buffer spring 153, so as to facilitate later use.

Specifically, a protective pad 17 is fixedly connected to the surface of the guardrail 16, and the protective pad 17 is made of rubber.

In this embodiment, the protective pad 17 is fixedly connected to the surface of the guardrail 16, so that the slight impact buffering can be performed, and the surface of the guardrail 16 is protected from being damaged

Specifically, the inner wall of the bridge frame 3 is provided with a rubber anti-cracking layer 10 and anti-cracking steel wire fibers 18, and the rubber anti-cracking layer 10 is positioned on the anti-cracking steel wire fibers 18.

In this embodiment, the rubber anti-cracking layer 10 and the anti-cracking steel wire fibers 18 are arranged, so that the impact resistance and fatigue resistance of the bridge frame 3 are improved.

Specifically, the surfaces of the compression spring 9 and the return spring 13 are both coated with an anticorrosive paint, and the anticorrosive paint is made of an epoxy resin paint.

In this embodiment, all scribble anticorrosive paint through compression spring 9 and reset spring 13 surface to make the anticorrosive ability who improves compression spring 9 and reset spring 13, improve life.

The utility model discloses a theory of operation and use flow: in the using process, the force borne by the bridge frame 3 can be shared by the left pier 1, the right pier 2 and the middle supporting pier 4, the left pier 1, the right pier 2 and the middle supporting pier 4 are connected by the connecting cross beam 5, the resilience of the compression spring 9 and the reset spring 13 is utilized for buffering, so that the condition that the middle supporting pier 4 cracks due to the fact that the passing vehicles exert pressure on the bridge frame 3 for a long time is indirectly avoided, the impact resistance and fatigue resistance of the bridge frame 3 can be improved by using the rubber crack-resistant layer 10 and the crack-resistant steel wire fibers 18, the anti-seepage capability of concrete is further improved, the crack-resistant and pressure-resistant effects are achieved, the safety of people is indirectly protected by the bridge frame 3, the condition that people waste a large amount of manpower and material resources and a large amount of cost to repair and remedy the bridge piers is indirectly avoided, and the condition that the cracks of different degrees occur in the middle supporting pier 4 is effectively avoided, through buffer device 15 and protection pad 17 on guardrail 16 surface for when the unexpected striking guardrail 16 of car, can cross buffer spring 153 through the inner wall of buffer cylinder 152, can effectual buffering car impact force, thereby the effectual condition of having avoided taking place the car to destroy the human death, and then also protection device's practicality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti-cracking device for highway bridge, includes left pier (1) and right pier (2), its characterized in that: the bridge structure is characterized in that the top ends of the left pier (1) and the right pier (2) are fixedly connected with a bridge frame (3), the bottom end of the bridge frame (3) is respectively and fixedly connected with an intermediate support pier (4) and a connecting beam (5), buffer grooves (7) are respectively formed in the surfaces of the left pier (1), the right pier (2) and the intermediate support pier (4), guide rods (8) are fixedly connected to the inner walls of the buffer grooves (7), the surface of each guide rod (8) is connected with the corresponding beam (5) in a sliding manner, compression springs (9) are sleeved on the surfaces of the guide rods (8), the two ends of each compression spring (9) are respectively and fixedly connected with the corresponding beam (5) and the corresponding buffer groove (7), a fixed beam (6) is fixedly connected between the left pier (1), the right pier (2) and the intermediate support pier (4), and a first L-shaped block (11) is fixedly connected to the surface of the fixed beam (6), the bottom end of the connecting beam (5) is fixedly connected with a second L-shaped block (12), and a return spring (13) is fixedly connected between the first L-shaped block (11) and the second L-shaped block (12).

2. The anti-cracking device for the road bridge as claimed in claim 1, wherein: the top end of the middle support pier (4) is fixedly connected with a fixed column (14), the surface of the fixed column (14) is fixedly connected with a buffer device (15), and one end of the buffer device (15) is fixedly connected with a guardrail (16).

3. The anti-cracking device for the road bridge as claimed in claim 2, wherein: buffer (15) including buffer rod (151) and buffer cylinder (152), the inner wall fixedly connected with buffer spring (153) of buffer cylinder (152), one end fixed connection sliding block (154) of buffer spring (153), one end fixed connection buffer rod (151) of sliding block (154), one end fixed connection guardrail (16) of buffer rod (151), one end fixed connection fixed column (14) of buffer cylinder (152).

4. The anti-cracking device for the road bridge as claimed in claim 2, wherein: the surface of the guardrail (16) is fixedly connected with a protection pad (17), and the protection pad (17) is made of rubber.

5. The anti-cracking device for the road bridge as claimed in claim 1, wherein: the bridge is characterized in that a rubber anti-cracking layer (10) and anti-cracking steel wire fibers (18) are arranged on the inner wall of the bridge frame (3), and the rubber anti-cracking layer (10) is located on the anti-cracking steel wire fibers (18).

6. The anti-cracking device for the road bridge as claimed in claim 1, wherein: the surfaces of the compression spring (9) and the reset spring (13) are coated with anticorrosive paint, and the anticorrosive paint is made of epoxy resin paint.