CN207646598U - One kind being used for Single column pier antidumping girder falling bracing means - Google Patents

Abstract

The utility model discloses a reinforcing device for an anti-overturning and anti-falling beam of a single-column pier, which comprises a reinforcing piece arranged on the side wall of the single-column pier for reinforcing the single-column pier, and also includes a reinforcing piece arranged under the box girder for Braces that support the box girder. Through the above technical proposal, the purpose of reinforcing the single-column pier and supporting the box girder is achieved, effectively avoiding the overturning of the single-column pier bridge.

Description

A reinforcement device for anti-overturning and anti-falling beams for single-column piers

technical field

The utility model belongs to the technical field of bridge substructure reinforcement, in particular to an anti-overturning and anti-fall beam reinforcement device for a single-column pier.

Background technique

Continuous bridges with single-column piers are widely used in urban viaducts and expressway ramps due to their advantages of occupying less space under the bridge, being visually transparent, simple and smooth, and beautiful. However, in recent years, with the continuous increase of traffic volume, the phenomenon of overweight vehicles exists from time to time, and the disadvantages of single-pillar piers are also shown. Among them, the overturning of the upper structure is the most serious. Once it occurs, it will cause major safety accidents and cause social disadvantages. influences.

At present, there are many continuous bridges with single-pillar piers that have insufficient safety reserves for anti-overturning capacity at home and abroad. Under the action of accidental eccentric load, the bridge with single-pillar piers will overturn due to instability.

In order to improve the anti-overturning ability of single-pillar piers, the inspection and reinforcement of existing single-pillar piers have been intensified in recent years. The traditional single-column pier reinforcement method is to transform the single-column pier into a three-column pier, and this method has a better reinforcement effect when conditions permit. However, due to the limitation of the clearance under the bridge and the excessive length of the bridge piers, it is costly and time-consuming to add additional piers, so this method cannot be implemented in many cases. Moreover, many reinforcement methods do not consider the seismic requirements of single-column piers.

Contents of the invention

Aiming at the problems existing in the prior art, the purpose of the present utility model is to provide an anti-overturning and anti-fall beam reinforcement device for a single-pillar pier, which can effectively prevent the overturning of the single-pillar pier bridge.

The anti-overturning and anti-fall beam reinforcement device for a single-column pier of the present utility model includes a reinforcing piece arranged on the side wall of the single-column pier for reinforcing the single-column pier, and also includes a device under the box girder for supporting the box girder. A supporting piece; the supporting piece is provided with a limiting piece for limiting the horizontal and reverse displacement of the box girder.

Optionally, the reinforcement includes a steel hoop arranged on the side wall of the monocolumn pier.

Optionally, the steel hoop includes two connected sub-steel hoops with a semicircular structure.

Optionally, the two sub-steel hoops are connected by bolts.

Optionally, the steel hoop is installed on the single-column pier through chemical bolts.

Optionally, the support includes a support frame body, which includes a horizontal support horizontally arranged above the single-column pier and two inclined support frames respectively provided on both sides of the single-column pier, above which the horizontal support supports the Describe the box girder.

Optionally, both sides of the horizontal support are respectively provided with limiting plates for limiting the displacement of the box girder along the length direction of the horizontal support.

Optionally, a buffer is provided on one side of the limiting plate facing the box girder.

Optionally, a support plate is provided above the horizontal support.

Optionally, multiple supports are provided on the support plate.

The utility model is used for the anti-overturning and anti-falling beam reinforcement device of a single-column pier, which is provided with reinforcements and supporting parts, so as to realize the purpose of reinforcing the single-column pier and supporting the box girder, and effectively avoid the overturning of the single-column pier bridge.

Below in conjunction with accompanying drawing and embodiment, the scheme of the utility model is further explained and illustrated in detail.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of the utility model;

Description of reference signs: 1—single column pier; 2—reinforcement; 21—steel hoop; 3—box girder; 4—support; 41—horizontal support, 42—oblique support frame; 43—connecting rod; 5— Chemical bolt; 6—limit plate; 7—bumper; 8—support; 9—support plate.

Detailed ways

The utility model provides an anti-overturning and anti-fall beam reinforcement device for a single-column pier, as shown in Fig. 1 and Fig. 2, which includes a reinforcement 2 arranged on the side wall of the single-column pier 1 for reinforcing the single-column pier 1, and also It includes a supporting piece 4 arranged under the box girder 3 for supporting the box girder 3, and a limiting piece for limiting the horizontal reverse displacement of the box girder 3 is arranged on the supporting piece 4. Through the above technical scheme, the purpose of reinforcing the single-column pier 1 is achieved, and the overturning of the single-column pier bridge is effectively avoided.

Specifically, in yet another embodiment, the reinforcing member 2 includes a steel hoop 21 arranged on the side wall of the single-column pier 1 . The steel hoop 21 reinforces the single column pier 1 .

Specifically, in yet another embodiment, the steel hoop 21 includes two connected sub-steel hoops with a semicircular structure. In this embodiment, the two sub-steel hoops can be connected together by bolts or welding, no matter which connection method can make the two sub-steel hoops form a steel hoop 21 to wrap the single column pier 1 Function, play the effect of strengthening single-column pier 1.

Optionally, in yet another embodiment, the two sub-steel hoops are connected by bolts. This connection method is simple, reliable and easy to operate.

Further, in yet another embodiment, the steel hoop 21 is installed on the single column pier 1 through chemical bolts 5 . In this embodiment, the steel hoop 21 is fixed on the single-column pier by chemical bolts 5, so as to prevent the steel hoop 21 from detaching from the single-column pier 1, and increase the service life of the reinforcing device of this embodiment.

Specifically, in yet another embodiment, the supporting member 4 includes a supporting frame body, which includes a horizontal bracket 41 horizontally arranged above the single-column pier and two inclined supporting frames respectively arranged on both sides of the single-column pier 1 42, the box girder 3 is supported above the horizontal support 41. In this embodiment, an angle is formed between the slanting support frame 42 and the single-column pier 1, and the slanting support frame 42 plays the role of supporting the horizontal support 41; a plurality of connecting rods 43 are arranged between the horizontal support 41 and the slanting support frame 42 , a plurality of connecting rods 43 form a triangular frame to enhance the rigidity of the support frame. The supporting member 4 in this embodiment has the advantages of light weight and large bearing capacity, thus greatly reducing the probability of overturning accidents. Specifically, in this embodiment, the horizontal bracket 41 and the oblique support frame 42 are connected by a plurality of reinforcement rods arranged in the vertical direction, and the reinforcement rods are welded on the steel hoop 21, thereby realizing the installation of the support member 4 on the Purpose on the steel hoop 21.

Further, in yet another embodiment, both sides of the horizontal support 41 are respectively provided with limiting plates 6 for limiting the displacement of the box girder 3 along the length direction of the horizontal support 41 . The limiting plate 6 is arranged vertically to the horizontal support 41 to prevent the box girder 3 from breaking away from the horizontal support 41 .

Further, in yet another embodiment, a buffer member 7 is provided on a side of the limiting plate 6 facing the box girder 3 . The buffer member 7 is used for buffering when the box girder 3 moves and collides with the limiting plate 6 . Optionally, the buffer member 7 is a rubber member.

Further, in yet another embodiment, a support plate 9 is provided above the horizontal support 41 . Because the horizontal support 41 is a frame structure, in order to ensure the effect of the horizontal support 41 supporting the box girder 3 , in this embodiment, a support plate 9 is provided above the horizontal support 41 .

Further, in yet another embodiment, a plurality of supports 8 are provided on the support plate 9 . The plurality of supports 8 are evenly distributed on the horizontal support 41 for supporting the box girder 3, which can significantly reduce the overturning moment.

Claims (10)

1. one kind being used for Single column pier antidumping girder falling bracing means, which is characterized in that including the side wall in Single column pier (1) is arranged On reinforcing member (2) for reinforcing Single column pier (1), further include the support element that setting is used to support box beam (3) below box beam (3) (4)；The locating part for limiting box beam (3) along horizontal reversed displacement is provided on the support element (4).

2. being used for Single column pier antidumping girder falling bracing means as described in claim 1, which is characterized in that the reinforcing member (2) include the steel hoop (21) being arranged on Single column pier (1) side wall.

3. being used for Single column pier antidumping girder falling bracing means as claimed in claim 2, which is characterized in that the steel hoop (21) include two sub- steel hoops with semicircular structure to link together.

4. being used for Single column pier antidumping girder falling bracing means as claimed in claim 3, which is characterized in that described two sub- steel Anchor ear is bolted.

5. being used for Single column pier antidumping girder falling bracing means as claimed in claim 2, which is characterized in that the steel hoop (21) it is mounted on Single column pier (1) by chemical bolt (5).

6. being used for Single column pier antidumping girder falling bracing means as claimed in claim 1 or 2, which is characterized in that the support Part (4) includes supporting frame, which includes the horizontal stand (41) being horizontally set on above Single column pier and set respectively Two bearing diagonal framves (42) in Single column pier (1) both sides are set, box beam (3) described in horizontal stand (41) upper support.

7. being used for Single column pier antidumping girder falling bracing means as claimed in claim 6, which is characterized in that the locating part packet Setting is included in the both sides of horizontal stand (41) for limiting limit of the box beam (3) along horizontal stand (41) length direction displacement Plate (6).

8. being used for Single column pier antidumping girder falling bracing means as claimed in claim 7, which is characterized in that the limiting plate (6) side of the box beam (3) is provided with bolster (7).

9. being used for Single column pier antidumping girder falling bracing means as claimed in claim 6, which is characterized in that the horizontal stand (41) top is provided with support plate (9).

10. being used for Single column pier antidumping girder falling bracing means as claimed in claim 9, which is characterized in that the support plate (9) multiple bearings (8) are provided on.