CN218345973U

CN218345973U - Single-column pier capping beam reinforcing structure

Info

Publication number: CN218345973U
Application number: CN202221471842.1U
Authority: CN
Inventors: 王学平; 林振袍; 陈桂珍; 张小建
Original assignee: Zhejiang College of Construction
Current assignee: Zhejiang College of Construction
Priority date: 2022-02-22
Filing date: 2022-06-11
Publication date: 2023-01-20
Anticipated expiration: 2032-06-11

Abstract

The invention discloses a single-column pier capping beam reinforcing structure, which relates to the technical field of bridges and adopts the technical scheme that the single-column pier capping beam reinforcing structure comprises a girder, piers and a damping support arranged between the girder and the piers, wherein upper anchoring blocks are arranged on two sides of the girder, lower anchoring blocks are arranged on two sides of the piers, an oblique steel pull rod is arranged between the upper anchoring blocks and the lower anchoring blocks, the steel pull rod comprises an upper connecting rod anchored on the upper anchoring blocks and a lower connecting rod anchored on the lower anchoring blocks, the lower connecting rod is provided with a telescopic rod extending towards one side of the upper connecting rod, the end part of the telescopic rod is provided with a sliding shaft, and the end part of the upper connecting rod is provided with a groove for the end part of the telescopic rod to extend into the movable groove and a sliding groove for the sliding shaft to be embedded into and rotate and limit the rotating shaft to be only in oblique movement. The anti-overturning structure has the advantages that the anti-overturning capacity of the main beam is improved, and meanwhile, the performance of the bridge damping support is not influenced.

Description

Single-column pier capping beam reinforcing structure

Technical Field

The invention relates to the technical field of bridges, in particular to a single-column pier capping beam reinforcing structure.

Background

The main manifestation form of the single-pier bridge overturning process is that the main beam rigid body rotates, and the overturning moment generated by the unbalanced load of the automobile load and the anti-overturning moment generated by the self weight of the main beam are the power and the resistance of the lever respectively. In order to improve the anti-overturning stability of the single-column pier bridge structure, ensure that the single-column pier bridge has enough anti-overturning safe storage in the operation process, avoid the transverse bridge overturning of the main beam and enable the beam body to reach a static balance state, the anti-overturning moment has enough resisting effect. On the basis of a lever principle, a novel single-column pier anti-overturning reinforcing structure based on a tension and compression rod is provided, and the novel reinforcing structure is characterized in that two sides of a web plate of a main beam are connected with piers through steel pull rods, so that the anti-overturning capacity of the main beam can be improved.

Because the two sides of the main girder web plate are connected with the bridge pier through the steel pull rods to form rigid connection, the rigid connection supports the bridge pier to provide the anti-overturning capacity, but the performance of the bridge damping support is influenced to a certain extent.

Disclosure of Invention

The invention aims to provide a single-column pier capping beam reinforcing structure which has the advantages of improving the anti-overturning capacity of a main beam and simultaneously keeping the performance of a bridge damping support unaffected.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a single-column mound bent cap reinforced structure, includes girder, pier and locates the vibration damping support between girder and the pier, the width of girder is equipped with the anchor piece to both sides, the both sides of pier are equipped with down the anchor piece, go up the anchor piece and are equipped with the oblique steel pull rod down between the anchor piece, the steel pull rod includes last connecting rod of anchor on last anchor piece, the lower connecting rod of anchor on anchor piece down, the connecting rod has the flexible telescopic link towards last connecting rod one side down, and the tip of telescopic link is equipped with the sliding shaft, and the tip of going up the connecting rod is equipped with the recess that supplies the telescopic link tip to stretch into the activity and supplies sliding shaft embedding rotation and restriction pivot only to be in the spout of slant removal.

By adopting the technical scheme, the main beams are connected through the steel pull rods, when the main beams have the tendency of overturning, the tension-compression rod effect is generated, an additional reverse moment is provided for the main beams with the tendency of overturning so as to resist the overturning moment of the main beams, and the anti-overturning capacity of the main beams is improved. And because the steel pull rod has the telescopic link, leaves the spout between the tip of telescopic link and the last connecting rod, provides a movable length in the slant, and this movable length is shorter relatively, only trace length, can not let the girder produce and topple over. The function of the steel pull rod is ensured to be exerted, and meanwhile, a certain oblique movement amount is reserved, so that the performance of the damping support is not affected.

Further setting: the sliding shafts are round shafts and are at least provided with two sliding shafts.

Through adopting above-mentioned technical scheme, two at least sliding shaft stability are better to the setting of circle axle utilizes circular production micro rotation when the trace removes, makes the better of the effect performance of sliding shaft.

Further setting: the lower connecting rod is provided with a plurality of positioning holes arranged along the length direction, and the telescopic rod is provided with a locking piece fixed with the positioning holes.

Through adopting above-mentioned technical scheme, go up the connecting rod and constitute the steel pull rod with lower connecting rod jointly, the whole length can not accomplish the length of complete adaptation installation, and through adjusting down the whole length of connecting rod, it is better to ensure the adaptation degree.

Further setting: the locking member includes at least one bolt.

By adopting the technical scheme, the bolt is most convenient to fix, and the fixing strength is also proper.

Further setting: the upper anchoring block and the lower anchoring block respectively comprise a side plate and a supporting plate, the steel pull rod is connected to the supporting plate, and the side plates are fixed with the main beam or the built-in tripod of the pier.

Further setting: the supporting plates of the upper anchoring block and the lower anchoring block are arranged in parallel.

By adopting the technical scheme, the parallel bearing plates enable the steel pull rod to be stressed in a linear direction. In addition, the tripod is convenient to fix, and the parallelism can be ensured.

Further setting: the upper anchoring block is connected with the main beam through a bar planting bolt, and the lower anchoring block is connected with the bridge pier through a bar planting bolt.

Through adopting above-mentioned technical scheme, the bar planting bolted connection is the best choice that structure bar planting reinforcement and heavy load fastening were used.

Drawings

FIG. 1 is a schematic structural view of a reinforcing structure of a single-column pier capping beam;

in the figure, 1, a main beam; 2. a bridge pier; 21. planting a rib bolt; 3. a shock-absorbing support; 4. an upper anchoring block; 41. a support plate; 42. a side plate; 5. a lower anchoring block; 6. a steel tie rod; 61. an upper connecting rod; 62. a lower connecting rod; 63. a telescopic rod; 64. a groove; 65. a chute; 66. positioning holes; 67. a locking member; 68. a slide shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

First preferred embodiment:

a single-column pier capping beam reinforcing structure is shown in figure 1 and comprises a main beam 1, piers 2 and shock-absorbing supports 3 arranged between the main beam 1 and the piers 2, wherein upper anchor blocks 4 are arranged on two sides of the main beam 1 in the width direction, and lower anchor blocks 5 are arranged on two sides of the piers 2.

The upper anchoring block 4 and the lower anchoring block 5 both comprise side plates 42 and supporting plates 41, the side plates 42 are provided with two blocks, and the side plates 42 are vertical plates; the support plate 41 also has two pieces, and the support plate 41 is a transversely arranged plate. Forming a frame structure.

The upper anchoring block 4 is connected with the supporting plate 41 on the side where the main beam 1 is attached through the embedded bar bolt 21, and the lower anchoring block 5 is connected with the supporting plate 41 on the side where the pier 2 is attached through the embedded bar bolt 21. The fixation of the upper anchor block 4 and the lower anchor block 5 is completed.

Further, the side plates 42 and the main beam 1 or the pier 2 may be fixed by a tripod (not shown) which ensures that the support plates 41 of the upper anchor block 4 and the lower anchor block 5 are arranged in parallel with each other.

An inclined steel pull rod 6 is arranged between the upper anchoring block 4 and the lower anchoring block 5, and after the upper anchoring block 4 and the lower anchoring block 5 are fixed, the steel pull rod 6 is connected to the supporting plate 41.

Specifically, the steel pull rod 6 comprises an upper connecting rod 61 anchored on the upper anchoring block 4 and a lower connecting rod 62 anchored on the lower anchoring block 5, the lower connecting rod 62 is provided with a telescopic rod 63 extending towards one side of the upper connecting rod 61, the end part of the telescopic rod 63 is provided with a sliding shaft 68, the end part of the upper connecting rod 61 is provided with a groove 64 for the end part of the telescopic rod 63 to extend into the moving direction and a sliding groove 65 for the sliding shaft 68 to embed and rotate and limit the rotating shaft to only move obliquely.

Since the steel pull rod 6 is provided with the telescopic rod 63, the sliding groove 65 is reserved between the end part of the telescopic rod 63 and the upper connecting rod 61, and the movable length is provided in the inclined direction, is relatively short and is only a micro length, and cannot enable the main beam 1 to topple. And a certain oblique movement amount is reserved while the function of the steel pull rod 6 is ensured to be exerted, so that the performance of the damping support 3 is not influenced.

The lower connecting rod 62 is provided with a plurality of positioning holes 66 arranged along the length direction, and the telescopic rod 63 is provided with a locking piece 67 fixed with the positioning holes 66. The locking member 67 includes at least one bolt. Go up connecting rod 61 and lower connecting rod 62 and constitute steel pull rod 6 jointly, the whole length can not accomplish the length of complete adaptation installation, through adjusting down the whole length of connecting rod 62, can ensure that the adaptation degree is better.

Preferably, at least two sliding shafts 68 are provided. The slide shaft 68 is preferably a circular shaft having no angular periphery, and can ensure that the slide shaft 68 rotates a small amount and can move a certain amount. The square shaft is not suitable for use in this solution.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims

1. The utility model provides a single-column pier bent cap reinforced structure, includes girder (1), pier (2) and locates damping support (3) between girder (1) and pier (2), the width of girder (1) is equipped with anchor block (4) to both sides, the both sides of pier (2) are equipped with down anchor block (5), go up anchor block (4) and be equipped with diagonal steel pull rod (6) between anchor block (5) down, its characterized in that: steel pull rod (6) are including anchoring last connecting rod (61) on last anchor block (4), lower connecting rod (62) of anchoring on anchor block (5) down, connecting rod (62) have towards telescopic link (63) that upper connecting rod (61) one side is flexible down, and the tip of telescopic link (63) is equipped with slide-bar (68), and the tip of going up connecting rod (61) is equipped with supplies telescopic link (63) tip to stretch into movable recess (64) and supplies slide-bar (68) embedding rotation and restriction pivot only in spout (65) that the slant removed.

2. The single-column pier capping beam reinforcement structure according to claim 1, wherein: the sliding shafts (68) are round shafts, and at least two sliding shafts are arranged.

3. The single-column pier capping beam reinforcement structure according to claim 1, wherein: the lower connecting rod (62) is provided with a plurality of positioning holes (66) arranged along the length direction, and the telescopic rod (63) is provided with a locking piece (67) fixed with the positioning holes (66).

4. The single-column pier capping beam reinforcement structure according to claim 3, wherein: the locking element (67) comprises at least one bolt.

5. The single-column pier capping beam reinforcement structure according to claim 1, wherein: the upper anchor block (4) and the lower anchor block (5) comprise side plates (42) and support plates (41), the steel pull rod (6) is connected to the support plates (41), and the side plates (42) are fixed with a tripod arranged in the main beam (1) or the pier (2).

6. The single-column pier capping beam reinforcement structure according to claim 5, wherein: the supporting plates (41) of the upper anchoring block (4) and the lower anchoring block (5) are arranged in parallel.

7. The single-column pier capping beam reinforcement structure according to claim 1, wherein: go up anchor block (4) and girder (1) and be connected through bar planting bolt (21), anchor block (5) are connected through bar planting bolt (21) with pier (2) down.