CN214362811U

CN214362811U - Rail bearing beam connection structure

Info

Publication number: CN214362811U
Application number: CN202023147252.7U
Authority: CN
Inventors: 邱鹏; 祝安宝; 施恩; 王恒涛; 王畅; 韦金劲
Original assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; Road and Bridge South China Engineering Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-08
Anticipated expiration: 2030-12-23

Abstract

The application provides a track spandrel girder structure of plugging into has solved the relatively poor stability of current track spandrel girder in disconnection department structural stability, the track spandrel girder structure of plugging into the disconnection of track spandrel girder at support bed stone department, support bed stone is higher than the elevation of its both sides track spandrel girder, the both sides of support bed stone are equipped with the connecting steel plate in order to be used for with the welding of track spandrel girder, just be equipped with in the support bed stone with the built-in fitting that connecting steel plate connects. This application makes the track spandrel girder be connected with the support bed stone through the steel connecting plate, can effectively resist the horizontal force of track spandrel girder at the top pushing in-process, improves the stability of track spandrel girder then, simple structure, construction convenience.

Description

Rail bearing beam connection structure

Technical Field

The application relates to the field of bridge foundation construction, in particular to a track bearing beam connection structure.

Background

Along with the increasing perfection of cable tower construction, the upper structures of the steel pipe supports arranged at the two ends of the cable tower area are arranged from bottom to top: the method comprises the following steps of pile top beam bearing beam → longitudinal Bailey truss bearing beam → distribution beam → track bearing beam → sliding chute → steel sliding plate → weight shifter → elevation adjusting steel plate → hard rubber support, wherein the hard rubber cushion block is the most important connection for transferring load between bridge members, and the connection is very complicated and uneven in stress, and a place where stress is concentrated often exists is a place which is easy to form a dangerous source of damage. Therefore, if the rubber support needs to be replaced at regular time, the support cushion needs to be arranged at the position of the danger source, and when a proper transition member is arranged at the position of the stress concentration, the combination can be compactly and flatly combined, so that the force transmission becomes gentle and uniform. And the space is vacated when the rubber support can be conveniently replaced, and the jack is conveniently placed.

The support base cushion often cuts off the track bearing beam, so that the track bearing beam is disconnected, and the existing position where the track bearing beam is disconnected does not have any reinforcing structure, so that the stability of the track bearing beam is poor, and the stability of a bridge is affected.

SUMMERY OF THE UTILITY MODEL

The purpose of this application aims at providing a track spandrel girder structure of plugging into that structural stability is high.

In order to achieve the above object, the present application provides the following technical solutions:

the utility model provides a structure is plugged into to track spandrel girder, the disconnection of track spandrel girder is in support bed stone department, support bed stone is higher than the elevation of its both sides track spandrel girder, the both sides of support bed stone are equipped with the connecting steel plate in order to be used for with the welding of track spandrel girder, just be equipped with in the support bed stone with the built-in fitting that connecting steel plate is connected.

Further setting: the length of the welding seam between the connecting steel plate and the rail bearing beam is not less than 30 cm.

Further setting: the welding thickness of the connecting steel plate and the rail bearing beam is not less than 8 mm.

Further setting: the embedded parts comprise embedded steel bars embedded in the support base cushion stone, and each group of embedded parts connected with the connecting steel plate at least comprises two embedded steel bars.

Further setting: and a pre-embedded pipe used as a foundation bolt hole of the support is pre-embedded in the support base cushion.

Further setting: the embedded pipe is a PVC pipe with the diameter of 170mm and the length of 490 mm.

Further setting: the bottom of the track bearing beam is also provided with a filling part, and the filling part comprises a steel plate or profile steel.

Further setting: the mounting height of the connecting steel plate on the support base cushion adapts to the inclination of the track bearing beam.

Compared with the prior art, the scheme of the application has the following advantages:

1. in the structure of plugging into of the track spandrel girder of this application, the track spandrel girder passes through the connecting steel plate and is connected with the support stone underlay, can effectively resist the horizontal power of track spandrel girder at the top pushing in-process, improves the stability of track spandrel girder then, simple structure, the construction of being convenient for.

2. In the structure of plugging into of the track spandrel girder of this application, the connection steel sheet is connected with the pre-buried built-in fitting in the support stone backing, can improve the joint strength between connection steel sheet and the support stone backing, improves the dynamics of being connected of track spandrel girder and support stone backing then.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an embodiment of a connection structure of a bearing beam of a rail according to the present application.

In the figure, 1, a support base cushion stone; 2. connecting steel plates; 3. embedding parts; 4. a filling section; 5. track spandrel girder.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Please refer to fig. 1, the present application relates to a connection structure of a rail bearing beam, wherein the rail bearing beam 5 is disconnected at a support cushion stone 1, the support cushion stone 1 is used as a connection part of a bridge abutment, a pier top and a support, the support cushion stone 1 is higher than the elevation of the rail bearing beam 5 at two sides of the support cushion stone 1, two sides of the support cushion stone 1 are provided with connection steel plates 2 for welding with the rail bearing beam 5, and an embedded part 3 connected with the connection steel plates 2 is arranged in the support cushion stone 1. The utility model provides a structure of plugging into of track spandrel girder makes track spandrel girder 5 be connected with support bed stone 1 through connecting plate 2, can effectively resist the horizontal force of track spandrel girder 5 at the top pushing in-process, improves the stability of track spandrel girder 5 then.

Specifically, the length of the welding seam between the connecting steel plate 2 and the rail bearing beam 5 is not less than 30cm, and the welding thickness is not less than 8 mm. The welding seam range of the connecting steel plate 2 and the rail bearing beam 5 is limited to ensure the tensile strength of the welding seam, so that the connection stability of the rail bearing beam 5 and the connecting steel plate 2 is ensured. And the installation height of the connecting steel plate 2 on the support cushion stone 1 is adapted to the inclination of the rail bearing beam 5.

The embedded part 3 is in including pre-buried the embedded steel bar in the support bed stone 1, the embedded steel bar with 2 welded fastening or integrated into one piece of connecting steel plate to through embedded part 3 in order to improve the joint strength of connecting steel plate 2 and support bed stone 1, then improve the stability of being connected of track spandrel girder 5 and support bed stone 1.

Further, each group of embedded parts 3 connected with the connecting steel plates 2 at least comprises two embedded steel bars, and the embedded steel bars extend along the width direction of the support base cushion stone 1. Preferably, every group embedded steel bar of this embodiment is equipped with three to improve the area of contact of embedded steel bar and the concrete of support base stone underlay 1, improve the joint strength of built-in fitting 3 and support base stone underlay 1 then.

The utility model provides a support base stone 1 is pre-buried earlier when the bottom end rail is pour support base stone 1's reinforcing bar, support base stone 1 accomplishes the steel bar installation construction according to the design earlier before the construction, pours the template and adopts the template, and vertical arrangement square timber back of the body is stupefied simultaneously, transversely sets up three steel pipe back of the body stupefied, and adopts all around

The steel pipe is supported obliquely, and then concrete is poured. Because the reinforcing bar is comparatively intensive in the support base stone 1, for the quality of pouring of guaranteeing the concrete, the stick that shakes adopts the D30 type stick that shakes, and the concrete adopts the layering to pour, and layering thickness is not more than 30 cm. Concrete is poured to be 3cm below the elevation of the top surface of the support base cushion stone 1 (the 3cm is a grouting material leveling layer), after pouring is completed, geotextile is adopted for covering, watering and curing, and the design height of the support base cushion stone 1 is 123.6 cm.

The support base cushion stone 1 is also provided with a pre-buried pipe (not shown in the figure, the same applies below) used as a support base foundation bolt hole for installing a support base. Specifically, PVC pipes with the diameter of 170mm and the length of 490mm are adopted to be fixed and embedded after the support foundation bolt holes are accurately stocked, so that the support is conveniently and fixedly installed on the support base cushion stone 1 in a follow-up hoisting mode.

In addition, a filling part 4 is arranged at the bottom of the rail bearing beam 5 to compact the rail bearing beam 5 so as to ensure the stability of the rail bearing beam 5. Preferably, the filling part 4 comprises steel plates or section steel, and the filling part 4 can also be used for adjusting the elevation of the rail bearing beam 5 and the inclination of the rail bearing beam 5.

It should be noted that the type, number, etc. of the profiles used in the above disclosure are not limited to those disclosed in the present embodiment, and may be specifically adjusted according to actual construction.

This application track spandrel girder structure of plugging into makes track spandrel girder 5 and support base stone 1 pass through the welding of connection steel sheet 2, can resist the horizontal force of track spandrel girder 5 at the top pushing in-process to ensure the structural stability of track spandrel girder 5 in the section department of opening, ensure the stability of bridge structures then. Simultaneously, the connecting steel plate 2 is connected with pre-buried built-in fitting 3 in the support bed stone 1, can improve the connecting steel plate 2 with joint strength between the support bed stone 1 improves then the track spandrel girder 5 with the dynamics of being connected of support bed stone 1.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. The utility model provides a structure of plugging into of track spandrel girder, its characterized in that, the disconnection of track spandrel girder is in support bed stone department, support bed stone is higher than the elevation of its both sides track spandrel girder, the both sides of support bed stone are equipped with the connecting steel plate in order to be used for with the welding of track spandrel girder, just be equipped with in the support bed stone with the built-in fitting that connecting steel plate is connected.

2. The rail bearing beam connection structure according to claim 1, wherein the length of the weld connecting the steel plate and the rail bearing beam is not less than 30 cm.

3. The rail bearing beam connection structure according to claim 2, wherein the welding thickness of the connecting steel plate and the rail bearing beam is not less than 8 mm.

4. The track spandrel girder structure of plugging into of claim 1, wherein the embedded parts include embedded bars embedded in the support padstone, and each set of embedded parts connected with the connecting steel plate includes at least two embedded bars.

5. The rail bearing beam connection structure according to claim 1, wherein a pre-buried pipe used as a foundation bolt hole of the support is pre-buried in the support base stone.

6. The rail spandrel girder connection structure of claim 5, wherein the pre-buried pipe is a PVC pipe with a diameter of 170mm and a length of 490 mm.

7. The rail bearing beam connection structure of claim 1, wherein: the bottom of the track bearing beam is also provided with a filling part, and the filling part comprises a steel plate or profile steel.

8. The rail girder connection structure of claim 1, wherein the installation height of the connection steel plates on the support bed is adapted to the inclination of the rail girder.