CN107012783B - Vehicle passing collision protection device below corrugated plate type bridge - Google Patents

Abstract

The invention discloses a vehicle passing collision protection device below a corrugated plate type bridge, which comprises upright columns symmetrically arranged at the left side and the right side of a road bridge, wherein a base plate is arranged at the upper end part of each upright column, a height limiting frame body is fixed between the upper surfaces of the left base plate and the right base plate, the height limiting frame body comprises an upper steel plate, a lower steel plate and a corrugated plate body, two T-shaped steels symmetrically arranged are arranged between the upper steel plate and the lower steel plate, the upper surface of the transverse side of each T-shaped steel is welded and fixed with the lower surface of the upper steel plate, the lower end part of the longitudinal side of each T-shaped steel is welded and fixed with the upper surface of the lower steel plate, the corrugated plate body is arranged at the lower surface of the lower steel plate, the middle part of the corrugated plate body bulges downwards to form a height limiting protection part, and the. The replaceable corrugated plate body is arranged at the maximum height limit position of the height limit frame body, and can generate certain deformation after being rubbed and collided, so that the height limit frame body cannot be damaged, and the height limit frame body has a good application prospect.

Description

Anti-collision device for vehicles passing under the zigzag slab bridge

technical field

The invention relates to the technical field of bridge protection, in particular to a vehicle traffic collision protection device under a zigzag slab bridge.

Background technique

At present, in order to improve the safety performance of the bridges on the road, the height limit protective frame is mainly used to prevent the vehicle from being too high, thereby ensuring the safety of the bridge structure, which is used in many highways and urban viaducts. However, the height-limiting protective frame is easily bumped by vehicles, causing the height-limiting protective frame to be often damaged, and the cost of replacement is relatively large, which affects normal driving on the road. In addition, the long-term friction of the vehicle against the height-limiting protective frame will also cause serious damage to the beam of the height-limiting protective frame, making it unusable.

Contents of the invention

The purpose of the present invention is to overcome the problem that the existing height-limiting protective frame is easily subject to collision and friction of vehicles, causing damage, high replacement cost, and affecting normal driving on the road. In the vehicle traffic collision protection device under the zigzagging plate bridge of the present invention, the upper end of the column is provided with a backing plate, and a limited elevated body is fixed between the upper surfaces of the left and right backing plates. The structure is simple, the construction is convenient, and the maximum limit of the elevated body is limited. There is a replaceable corrugated plate at the high position, which will produce a certain deformation after being rubbed and bumped, without causing damage to the height-limiting frame. The foam filled inside the corrugated plate can also play a role in energy consumption. Function, low cost, easy to produce, and has good application prospects.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A vehicle traffic collision protection device under a zigzagging slab bridge, comprising uprights symmetrically arranged on the left and right sides of the road bridge, the upper ends of the uprights are provided with backing plates, and the upper surfaces of the left and right backing plates are fixed to a limited extent. elevated body,

The height-limiting frame body includes an upper steel plate, a lower steel plate and a corrugated plate body, two symmetrically arranged T-shaped steels are arranged between the upper side steel plate and the lower side steel plate, and the upper surface of the transverse side of each T-shaped steel is in line with the The lower side of the upper steel plate is welded and fixed, and the lower end of the longitudinal side of each T-shaped steel is welded and fixed to the upper side of the lower steel plate. The corrugated plate body is arranged on the lower side of the lower steel plate. The middle part bulges downward to form a height-limiting protection part, and the lowest position of the height-limiting protection part is the maximum height-limiting position,

The two ends of the corrugated plate body are sealed structures, and are respectively fixedly connected with the lower steel plate by fixing bolts.

In the above-mentioned anti-collision device for vehicles passing under a zigzag plate type bridge, the inside of the zigzagging plate body is filled with foam.

In the above-mentioned anti-collision device for vehicles under the zigzag plate bridge, the upper steel plate and the lower steel plate are respectively fixed by fillet welds to the corresponding sides of the T-shaped steel.

In the aforementioned anti-collision device for vehicles under the zigzag slab bridge, the two ends of the height-limiting frame body are respectively fixedly connected by the backing plates on the corresponding sides of the high-strength bolts.

In the above-mentioned anti-collision device for vehicles under the zigzagging plate bridge, the backing plate is an isosceles trapezoid, the long bottom surface of the backing plate is fixedly connected to the upper end of the column, and the short bottom surface of the backing plate is connected to the limit of the corresponding side. The ends of the elevated body are fixedly connected by high-strength bolts.

In the above-mentioned vehicle traffic collision protection device under the zigzag plate bridge, two symmetrically arranged T-shaped steels are respectively located near the sides between the upper steel plate and the lower steel plate.

The beneficial effects of the present invention are: the vehicle traffic collision protection device under the zigzag plate bridge of the present invention, the upper end of the column is provided with a backing plate, and a limited elevated body is fixed between the upper surfaces of the left and right backing plates, the structure is simple, and the construction is convenient , The maximum height limit position of the height limit frame body is provided with a replaceable corrugated plate body, which will produce a certain deformation after being rubbed against, without causing damage to the height limit frame body. The foam filled inside the corrugated plate body, It can also play the role of energy consumption, has low cost, is convenient for production, and has good application prospects.

Description of drawings

Fig. 1 is the structural schematic diagram of the vehicle traffic collision protection device under the zigzagging plate bridge of the present invention;

Fig. 2 is a partial schematic diagram of the height limiting frame of the present invention.

The meanings of the marks in the accompanying drawings are as follows:

1: Upright column; 2: Backing plate; 3: Height limit frame; 301: Upper steel plate; 302: Lower steel plate; 303: T-shaped steel; 304: Corrugated plate; 305: Height limit protection part; 4: High strength bolt.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the vehicle traffic collision protection device under the zigzag plate bridge of the present invention includes columns 1 symmetrically arranged on the left and right sides of the road bridge, and the upper end of the column 1 is provided with a backing plate 2 , a limited elevated body 3 is fixed between the upper surfaces of the left and right backing plates 2,

The height limiting frame body 3 includes an upper steel plate 301, a lower steel plate 302 and a corrugated plate body 304, two symmetrically arranged T-shaped steels 303 are arranged between the upper side steel plate 301 and the lower side steel plate 302, and each T-shaped steel The upper surface of the lateral side of 303 is welded and fixed to the lower side of the upper side steel plate 301, and the lower end of the longitudinal side of each T-shaped steel 303 is welded and fixed to the upper side of the lower side steel plate 302, and the folded plate body 304 is arranged on the lower side On the lower side of the steel plate 302, the middle part of the corrugated plate body 304 bulges downward to form a height-limiting protection part 305, and the lowest position of the height-limiting protection part 305 is the maximum height-limiting position of the height-limiting frame body 3;

Both ends of the corrugated plate body 304 are of sealed structure, and are respectively fixedly connected with the lower steel plate 302 by fixing bolts.

The inside of the corrugated plate body 304 is filled with foam, and the corrugated plate body 304 will produce a certain deformation after being rubbed and bumped, so as not to cause damage to the height-limiting frame body 3, and the filled foam has the ability to dissipate energy. ability to reduce the elastic strain energy dissipated by the height-limiting overhead system, and the cost is low, which is convenient for mass production, and it is easy to replace after damage. It is fixed by fixing bolts. It is a semi-rigid connection method with good ductility. Under the impact of the elevated body 3 by the vehicle, the damage to the elevated body 3 is minimized.

The upper side steel plate 301 and the lower side steel plate 302 are welded and fixed to the corresponding sides of the T-shaped steel 303 through fillet welds respectively, and two symmetrically arranged T-shaped steels 303 are respectively located near the upper side steel plate 301 and the lower side steel plate 302. The side is fixed by welding with sufficient rigidity to ensure the stability of the structure.

The two ends of the height-limiting frame body 3 are fixedly connected by the backing plate 2 on the corresponding side of the high-strength bolt 4. The high-strength bolt 4 also has sufficient ductility under the premise of ensuring sufficient rigidity, and can absorb the elasticity generated by the impact of the vehicle. The strain energy increases the resistance of the height-limiting frame body 3 .

The backing plate 2 is an isosceles trapezoid, the long bottom surface of the backing plate 2 is fixedly connected to the upper end of the column 1, the short bottom surface of the backing plate 2 is connected to the end of the height-limiting frame body 3 on the corresponding side through a high-strength The bolt 4 is fixedly connected, and the backing plate 2 of the isosceles trapezoid is used to increase the contact area with the column 1, to ensure the reliability of the connection, and to provide the stability of the load-limited height frame 3.

To sum up, in the vehicle traffic collision protection device under the zigzag plate bridge of the present invention, the upper end of the column is provided with a backing plate, and a limited elevated body is fixed between the upper surfaces of the left and right backing plates. The structure is simple, the construction is convenient, and the limit There is a replaceable corrugated plate at the maximum height limit position of the elevated body. After being rubbed, it will produce a certain deformation without causing damage to the limited height frame. The foam filled inside the corrugated plate can also Play the role of energy consumption, low cost, easy to produce, and has a good application prospect.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention will also have other functions without departing from the spirit and scope of the present invention. Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A vehicle traffic collision protection device under a zigzag slab bridge, characterized in that: it includes columns (1) symmetrically arranged on the left and right sides of the road bridge, and the upper end of the column (1) is provided with a backing plate ( 2), the limited elevated body (3) is fixed between the upper surfaces of the left and right backing plates (2), The height-limiting frame body (3) includes an upper steel plate (301), a lower steel plate (302) and a corrugated plate body (304), and the upper steel plate (301) and the lower steel plate (302) are provided with Two symmetrically arranged T-shaped steels (303), the upper surface of the transverse side of each T-shaped steel (303) is welded and fixed to the lower side of the upper side steel plate (301), and the lower end of the longitudinal side of each T-shaped steel (303) is connected to the The upper side of the lower steel plate (302) is welded and fixed, the corrugated plate body (304) is arranged on the lower side of the lower steel plate (302), and the middle part of the corrugated plate body (304) bulges downward to form a height limit protection part (305), the lowest position of the height limit protection part (305) is the maximum height limit position, Both ends of the corrugated plate body (304) are of sealed structure, and are respectively fixedly connected to the lower steel plate (302) by fixing bolts; The inside of the corrugated board (304) is filled with foam; The upper steel plate (301) and the lower steel plate (302) are respectively fixed by fillet welds and corresponding sides of the T-shaped steel (303). 2. The anti-collision device for vehicles under the zigzagging plate bridge according to claim 1, characterized in that: the two ends of the height-limiting frame (3) pass through the backing plates ( 2) Fixed connection. 3. The anti-collision device for vehicles under the zigzagging plate bridge according to claim 2, characterized in that: the backing plate (2) is an isosceles trapezoid, and the long bottom surface of the backing plate (2) is in contact with the column ( The upper end of 1) is fixedly connected, and the short bottom surface of the backing plate (2) is fixedly connected with the end of the height-limiting frame body (3) on the corresponding side through high-strength bolts (4). 4. The anti-collision device for vehicles passing under a zigzagging plate bridge according to claim 1, characterized in that: two symmetrically arranged T-shaped steels (303) are respectively located between the upper steel plate (301) and the lower steel plate (302). between near the side.