CN210458922U

CN210458922U - Overpass and supporting structure of beam body thereof

Info

Publication number: CN210458922U
Application number: CN201920810814.XU
Authority: CN
Inventors: 刘天培; 冯印; 余兴; 蔡建业; 王彦; 唐涛
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-05
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to the technical field of bridge traffic engineering, and provides a supporting structure of an overpass body, which comprises at least one pair of supporting platforms which can be respectively arranged on one of the opposite sides of a beam, wherein two supporting platforms are arranged along the driving direction, and the upper surfaces of the two supporting platforms are flush with the upper surface of the beam; each supporting platform is provided with a supporting surface for supporting the overpass body, and each supporting platform is bonded with the body of the beam. The overpass comprises the gate-type piers, a beam body positioned on a beam of the gate-type piers and the support structure, wherein the beam body is arranged on the beam through the support structure. The utility model discloses a bearing structure even is a whole with gate-type mound crossbeam and overpass roof beam body, because the crossbeam can be inlayed to the brace table, makes crossbeam top surface and roof beam body top surface be in a plane, when laying the load-bearing surface on the roof beam body, lays same loading end on the gate-type mound crossbeam, so can effectively reduce the circuit elevation, optimizes the vertical section slope, makes bridge construction's wholeness and aesthetic property all better.

Description

Overpass and supporting structure of beam body thereof

Technical Field

The utility model relates to a bridge traffic engineering technical field specifically is a overpass and bearing structure of roof beam body thereof.

Background

The simple beam body of the track traffic, the municipal road and the highway bridge is usually supported on the top of a beam of a multi-layer gate pier at a complex environment overpass position, the beam body is connected with the beam of the gate pier by arranging a support cushion stone and a support, and a continuous driving surface is formed between the beam bodies through an expansion joint or a bridge deck cast-in-place layer.

The size of the support is always hard to be specified due to the requirement of bearing, and the distance between the beam end and the support center of the support is still required, so the size of the beam of the gate pier along the line direction is always controlled by the structural requirements of the size of the support, the design of a beam body and the like, and the width of the beam along the line direction is wider. In addition, the beam end is arranged on the beam of the gate-type pier, and the overhead clearance on the bridge is calculated from the bridge floor, so that the elevation of the upper-layer overpass can be naturally influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a overpass and supporting structure of roof beam body thereof can overcome partial defect among the prior art at least.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a supporting structure of an overpass comprises at least one pair of supporting platforms which can be respectively arranged on one of opposite sides of a cross beam, wherein the two supporting platforms are arranged along the driving direction, and the upper surfaces of the two supporting platforms are flush with the upper surface of the cross beam; each supporting platform is provided with a supporting surface for supporting the overpass body, and each supporting platform is bonded with the body of the beam.

Furthermore, a key tooth groove for clamping the key tooth block on the body of the cross beam is arranged on the contact surface of the supporting platform and the body of the cross beam.

The support platform is characterized by further comprising at least one prestressed cable which can sequentially penetrate through one support platform, the cross beam and the other support platform, each support platform is connected with the body of the cross beam through the prestressed cable, and two ends of each prestressed cable are provided with anchoring parts which can be arranged on the support platforms.

Furthermore, each supporting surface of the supporting platform is provided with a supporting cushion.

Further, the supporting platform is a bracket, and an open slot for water passing is formed in the middle of the bracket.

Further, the bracket is kept away from the border of open slot all faces away from the direction of open slot upwards slopes form can with the inclined plane of the web laminating of the overpass girder body.

The embodiment of the utility model provides another kind of technical scheme: the overpass comprises gate-type piers, beam bodies and supporting structures, wherein the beam bodies are positioned on the beams of the gate-type piers, and the supporting structures are arranged on the beams through the supporting structures.

Furthermore, a bearing surface for vehicles to pass through is laid on the beam body.

Furthermore, the number of the supporting structures is matched with the number of the beam bodies, and each beam body is supported by the corresponding supporting structure.

Furthermore, glue is filled in a gap between the cross beam and the support platform.

Compared with the prior art, the beneficial effects of the utility model are that: the gate-type pier cross beam and the overpass beam body are connected into a whole through the supporting structure, the cross beam can be embedded into the supporting platform, so that the cross beam and the beam body are located on a plane, when the bearing surface is laid on the beam body, the same bearing surface is laid on the gate-type pier cross beam, the line elevation can be effectively reduced, the gradient of the longitudinal section is optimized, and the integrity and the attractiveness of the bridge structure are good.

Drawings

Fig. 1 is a front view of an overpass according to a second embodiment of the present invention;

fig. 2 is a side view of an overpass according to a second embodiment of the present invention;

fig. 3 is a top view of an overpass according to a second embodiment of the present invention;

in the reference symbols: 1-a support table; 10-a support surface; 11-inclined plane; 12-an open slot; 2-a beam body; 20-a web; 21-a bearing surface; 22-a traffic channel; 3-a cross beam; 4-a first key tooth block; 5-a prestressed cable; 6-an anchor member; 7-supporting a cushion stone; 8-upright post.

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 efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, an embodiment of the present invention provides a supporting structure for an overpass body 2, including at least a pair of supporting platforms 1 respectively disposed on one of opposite sides of a cross beam 3, two supporting platforms 1 are disposed along a driving direction, upper surfaces of the two supporting platforms are flush with an upper surface of the cross beam, and each supporting platform 1 has a supporting surface 10 for supporting the overpass body 2; and each support table 1 is bonded with the body of the beam 3. The overpass can be formed by building a beam body 2 on a beam 3 of a gate pier and then paving a bearing surface 21 for vehicles to pass through. The beam body 2 in the prior art is arranged on the beam 3, so that the clearance on the bridge can only be calculated from the top of the beam body 2 due to the influence of the height of the beam 3, and compared with the clearance on the bridge calculated from the top of the beam body 3, the clearance on the bridge is different by one beam height, and the elevation of the overpass on the upper layer can be influenced. In this embodiment, the supporting tables 1 are respectively arranged on the opposite sides of the beam, the beam body 2 is supported by the supporting surfaces 10 of the supporting tables 1, and then the upper surface of the supporting tables 1 is flush with the upper surface of the beam 3, so that the beam 3 and the beam body 2 are located on a plane, and meanwhile the bearing surface 21 is laid on the beam body 2, the bearing surface 21 is also laid on the portal pier beam 3, so that the line elevation can be effectively reduced, the gradient of the longitudinal section is optimized, and the integrity and the attractiveness of the bridge structure are good. In this embodiment, when the support platform 1 is provided, the construction can be performed synchronously with the construction gate pier, that is, the prefabrication/construction of the support platform 1 and the prefabrication/construction of the gate pier can be performed simultaneously, that is, multiple components can be operated in parallel, the construction time of the gate pier is shortened, and after the construction is completed, the connection is realized by the way that the support platform 1 is bonded with the beam body. Preferably, a plurality of pairs of support tables 1 are provided, which are arranged along the length direction of the beam 3.

The following are specific examples:

as an optimized solution of the embodiment of the present invention, please refer to fig. 1-3, a key tooth groove for the key tooth block 4 on the body of the beam to be clamped in is provided on the contact surface of the supporting platform and the body of the beam. In the embodiment, the key is realized by adopting a mode that the key tooth block is clamped into the key tooth groove, namely, the key tooth block 4 on the cross beam is clamped into the key tooth groove on the support table. In addition, the supporting table may be provided with a key tooth block, the beam may be provided with a key tooth groove, and the two may be bonded. The mode of above-mentioned bonding all needs key tooth piece and key tooth groove one-to-one, and key tooth groove and key tooth piece all establish a plurality ofly to guarantee the firmness of bonding, only supporting bench 1 has stabilized, and the roof beam body 2 that its supported just can be stable, and the vehicle of walking on roof beam body 2 also just can be safer.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1-3, further comprising at least one prestressed cable 5 which can sequentially run through one of the supporting platforms 1 of each group, the beam 3 and the other supporting platform 1 of each group of the supporting platforms 1, each of the supporting platforms 1 and the beam body are connected through the prestressed cable 5, and both ends of the prestressed cable 5 are provided with anchoring members 6 which can be installed on the supporting platforms 1 and the beam 3. In the present embodiment, in addition to the above-mentioned fitting connection of the spline grooves and the spline blocks, the prestressed cables 5 are used for connection, so that on one hand, the connection is strengthened, and on the other hand, the support table 1 (corbel) can well transmit the load of the beam body 2 to the portal pier beam 3. Preferably, the number of the prestressed cables 5 is many, and the prestressed cables are arranged in sequence along the length direction of the cross beam 3, and may be arranged in multiple rows. All the prestressed cables 5 are arranged in parallel to strengthen the connection. Preferably, anchor pads are used for the anchors 6. After the connection is carried out in the bonding mode, glue is applied to the connection surface, and then the prestressed cable is penetrated, stretched, grouted and anchored.

As an optimized solution of the embodiment of the present invention, please refer to fig. 1-3, a support base 7 is disposed on the support surface 10 of the support table 1. In the present embodiment, the support can be stabilized by providing the support cushion 7.

As an optimized scheme of the embodiment of the present invention, please refer to fig. 1-3, the supporting platform 1 is a bracket, and the middle of the bracket is provided with an open slot 12 for water passing. In this embodiment, the open groove 12 is provided for water passing. As shown in FIG. 1, the open grooves 12 penetrate the front and rear surfaces of the corbel.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1-3, the edge of the bracket far away from the open slot is inclined upward toward the direction far away from the open slot to form an inclined plane 11 that can be attached to the web 20 of the overpass body. As shown in fig. 1, the edge of the corbel away from the open slot 12 is inclined, and it will fit with the body 2 of the overpass to coordinate and keep the two in agreement, so that it looks as if the support platform 1 is embedded in the body 2.

Example two:

referring to fig. 1-3, an embodiment of the present invention provides an overpass, including a gate pier, a beam 2 located on a beam 3 of the gate pier, and the above-mentioned supporting structure, wherein the beam 2 is installed on the beam 3 through the supporting structure. In this embodiment, the gate pier is composed of a plurality of columns 8 and a beam 3 spanned between the columns 8, and then the beam body 2 is provided on the beam 3 through a support structure for arrangement of the traffic passage 22. Through adopting foretell bearing structure, because the upper surface of brace table 1 and the upper surface parallel and level of crossbeam 3 for crossbeam 3 and roof beam body 2 are in a plane, consequently lay bearing surface 21 on roof beam body 2 simultaneously, also lay bearing surface 21 on the gate-type mound crossbeam 3, so can effectively reduce the circuit elevation, optimize the vertical section slope, make bridge construction's wholeness and aesthetic property all better. In this embodiment, when the support platform 1 is provided, the construction can be performed synchronously with the construction gate pier, that is, the prefabrication/construction of the support platform 1 and the prefabrication/construction of the gate pier can be performed simultaneously, that is, multiple components can be operated in parallel, the construction time of the gate pier is shortened, and after the construction is completed, the connection is realized by the way that the support platform 1 is bonded with the beam body. Preferably, a plurality of pairs of support tables 1 are provided, which are arranged along the length direction of the beam 3.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1-3, a carrying surface 21 for a vehicle to pass is laid on the beam body 2. In the present embodiment, the carrying surface 21 is provided for the vehicle to pass through. The shape of the beam 2 is also partly inclined, which makes it more consistent.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1-3, the number of the supporting structures is matched with the number of the beam bodies, and each beam body is supported by the corresponding supporting structure. In this embodiment, the number of support structures depends on the number of beam bodies, which are embodied as box-shaped beam bodies, and one support structure, i.e. two support tables, is associated with one box-shaped beam body.

As the embodiment of the utility model provides an optimization scheme, crossbeam 3 with gap filling viscose between the brace table 1. In this embodiment, the gap is closed by a glue process to improve the stability.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bearing structure of overpass girder body which characterized in that: the device comprises at least one pair of supporting platforms which can be respectively arranged on one of the opposite sides of a cross beam, wherein the two supporting platforms are arranged along the travelling direction, and the upper surfaces of the two supporting platforms are flush with the upper surface of the cross beam; each supporting platform is provided with a supporting surface for supporting the overpass body, and each supporting platform is bonded with the body of the beam.

2. The supporting structure of an overpass body according to claim 1, wherein: and a key tooth groove for the key tooth block on the body of the cross beam to be clamped in is arranged on the contact surface of the supporting platform and the body of the cross beam.

3. The supporting structure of an overpass body according to claim 1, wherein: the support platform is characterized by further comprising at least one prestressed cable which can sequentially penetrate through one of the support platforms, the cross beam and the other support platform, each support platform is connected with the body of the cross beam through the prestressed cable, and two ends of each prestressed cable are provided with anchoring parts which can be installed on the support platforms.

4. The supporting structure of an overpass body according to claim 1, wherein: and each supporting surface of the supporting platform is provided with a supporting cushion.

5. The supporting structure of an overpass body according to claim 1, wherein: the supporting table is a bracket, and an open slot for water passing is formed in the middle of the bracket.

6. The supporting structure of an overpass body according to claim 5, wherein: the bracket is kept away from the border of open slot all faces away from the direction tilt up of open slot form can with the inclined plane of the web laminating of the overpass girder body.

7. The utility model provides an overpass, includes gate-type mound and is located the roof beam body on the crossbeam of gate-type mound, its characterized in that: further comprising a support structure according to any one of claims 1-6, said beam being provided on said cross-beam by said support structure.

8. The overpass of claim 7, wherein: and a bearing surface for vehicles to pass through is paved on the beam body.

9. The overpass of claim 7, wherein: the number of the supporting structures is matched with that of the beam bodies, and each beam body is supported by the corresponding supporting structure.

10. The overpass of claim 7, wherein: and viscose glue is filled in a gap between the cross beam and the supporting platform.