CN211972931U

CN211972931U - Guide rail beam

Info

Publication number: CN211972931U
Application number: CN202020453661.0U
Authority: CN
Inventors: 杜平; 肖辉; 安明媚
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-11-20
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a guide rail roof beam, guide rail roof beam includes: the track beam comprises two side beams and a transverse connection, the two side beams are arranged at left and right intervals, each side beam is of a concrete structure with built-in prestressed steel bars, an inner flange extending towards the other side beam and a first outer flange extending away from the other side beam are arranged at the top of each side beam, the bottom surface of the inner flange is higher than the bottom surface of the first outer flange, the transverse connection is arranged between the lower parts of the two side beams, and the transverse connection is of a concrete structure. According to the utility model discloses a guide rail roof beam, through setting up the curb girder into the concrete structure of built-in prestressing steel, compare with traditional curb girder, has reduced the thickness of curb girder, has improved the durability of guide rail roof beam. In addition, the bottom surface of the inner flange is higher than that of the first outer flange, so that interference between a guide wheel of the railway vehicle and the inner flange of the side beam can be avoided, and smoothness of the railway vehicle in running is guaranteed.

Description

Guide rail beam

Technical Field

The utility model belongs to the technical field of the track traffic technique and specifically relates to a guide rail roof beam is related to.

Background

In the related art, the track beam of the rubber-tyred tramcar is mostly made of a steel-concrete structure, however, the structure of the track beam has the following disadvantages:

1) the joint connection of the concrete and the steel plate is complex, the construction difficulty of the cast-in-place concrete layer is large, and the field operation and control are not facilitated;

2) the steel structure has low corrosion prevention age, needs to be replaced and maintained regularly, has poor durability and has higher product cost.

3) The guide surface of the rail beam is subjected to an outward load on the inside thereof, so that a large tensile force is generated at the joint of the guide surface of the rail vehicle and the running surface of the rail beam.

4) The steel structure rigidity is relatively poor, and easy deformation and rocking influence the comfort level of riding.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a guide rail roof beam reduces the thickness of curb girder, has improved the durability of track roof beam, avoids rail vehicle's leading wheel and the interior flange of curb girder to take place to interfere, guarantees the smooth and easy nature when rail vehicle traveles.

According to the utility model discloses guide rail roof beam, include: the track beam comprises two side beams and a transverse connection, the two side beams are arranged at left and right intervals, each side beam is of a concrete structure with built-in prestressed steel bars, the top of each side beam is provided with an inner flange extending towards the other side beam and a first outer flange extending away from the other side beam, and the bottom surface of the inner flange is higher than that of the first outer flange; the transverse connection is connected between the lower parts of the two side beams and is of a concrete structure.

According to the utility model discloses guide rail roof beam through setting up the curb girder into the concrete structure of built-in prestressing steel, compares with traditional curb girder, has reduced the thickness of curb girder, has improved the durability of track roof beam, reduce cost. The top of the side beam is provided with the inner flange and the first outer flange, the width of the top surface of the side beam is widened, the running safety of the rail vehicle is effectively guaranteed, the bottom surface of the inner flange is higher than that of the first outer flange, interference between the guide wheel of the rail vehicle and the inner flange of the side beam can be avoided, and the running smoothness of the rail vehicle is guaranteed. In addition, the side beam and the transverse connection are arranged into a concrete structure, so that the arrangement form of the joint of the side beam and the transverse connection is simplified, and the site construction and the control are more convenient.

According to some embodiments of the invention, a bottom surface of each of the inner flanges extends obliquely upward in an outside-in direction.

According to some embodiments of the utility model, the track roof beam includes many pin track roof beam sections, many pins the track roof beam section is followed the length direction of track roof beam sets gradually, and every pin track roof beam section includes two the curb girder and a plurality of the cross-under, it is a plurality of the cross-under is followed the length direction interval of track roof beam sets up.

According to some embodiments of the utility model, every the top of curb girder is equipped with walks capable structure, it is less than the hardness of concrete to walk the hardness of capable structure, it is capable of walking the top surface of capable structure for walking the road surface to walk.

According to some embodiments of the present invention, each the top of curb girder is formed with a recess, wherein walk the line structure and establish in the recess, just walk the top surface of line structure with the top surface parallel and level of curb girder.

According to some embodiments of the invention, the running structure is a bituminous concrete structure.

According to some embodiments of the utility model, the guide rail roof beam includes two the track roof beam, two the track roof beam interval sets up, two in the left and right sides direction be equipped with sparse platform between the track roof beam.

According to some embodiments of the utility model, the track roof beam supports in the bent cap, be equipped with the stone pad on the bent cap, evacuation platform supports on the stone pad.

According to some embodiments of the utility model, every in the curb girder the prestressing tendons is a plurality of, and is a plurality of the prestressing tendons is followed the direction of height of curb girder is arranged.

According to some embodiments of the invention, the bottom of each of the side beams has a second outer flange extending away from the other of the side beams.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention 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 view of a track beam of a guide rail beam according to an embodiment of the invention;

fig. 2 is a top view of a guide rail beam according to an embodiment of the present invention;

fig. 3 is a schematic view of a guide rail beam, a rail vehicle and a pier according to an embodiment of the present invention.

Reference numerals:

100: a guide rail beam;

1: a track beam; 11: a side beam; 111: an inner flange; 112: a first outer flange; 113: a second outer flange;

114: a running structure; 115: a groove; 116: pre-stressing the steel bars; 12: transverse connection; 13: a support;

2: an evacuation platform; 3: a cushion stone;

200: a bridge pier; 201: a capping beam; 202: column body

300: a rail vehicle; 301: a running wheel; 302: a guide wheel.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A guide rail beam 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3. A rail vehicle 300 such as a rubber-tyred tram can travel on the guide rail beam 100.

As shown in fig. 1 to 3, a guide rail beam 100 according to an embodiment of the present invention includes a rail beam 1.

Specifically, the track beam 1 includes two side beams 11 and a cross member 12, the two side beams 11 are arranged at a left-right interval, each side beam 11 is a concrete structure with a built-in prestressed reinforcement 116, the top of each side beam 11 is provided with an inner flange 111 extending towards the other side beam 11 and a first outer flange extending away from the other side beam 11, and the bottom surface of the inner flange 111 is higher than the bottom surface of the first outer flange 112. The cross-member 12 is connected between the lower portions of the two side members 11, and the cross-member 12 is of a concrete structure. Here, it should be noted that the direction "in" is understood to be a direction toward between the two side members 11, and conversely "out", i.e., a direction away from between the two side members 11.

For example, in the example of fig. 1 to 3, providing the side sill 11 as a concrete structure with the built-in prestressed reinforcement 116 can improve the durability of the track beam 1 and reduce the height of the side sill 11 as compared with the conventional side sill 11. The tops of the opposite sides of the two side beams 11 are provided with inner flanges 111 extending towards each other, the tops of the opposite sides of the two side beams 11 are provided with first outer flanges 112 extending away from each other, the tops of the inner flanges 111 and the top surfaces of the first outer flanges 112 can be flush with the top surfaces of the first side beams 11, so that the width of the top surfaces of the side beams 11 can be effectively ensured, when the walking wheels 301 of the rail vehicle 300 walk on the top surfaces of the side beams 11, the running safety of the rail vehicle 300 can be effectively ensured, and on the premise of meeting the width of the tops of the side beams 11, the width of the middle and lower parts of the side beams 11 can be effectively reduced, so that on the premise of meeting the safety and applicability of the rail beam 1, the cost is reduced, the weight of the side beams 11 is reduced, and the whole rail beam 1 is small and attractive. The bottom surface of the first outer flange 112 is lower than the bottom surface of the inner flange 111, so that interference between the guide wheel 302 of the rail vehicle 300 and the inner flange 111 of the side sill 11 can be effectively avoided, and smoothness of the rail vehicle 300 during running is guaranteed. The transverse link 12 is positioned between the two side beams 11, and the transverse link 2 can improve the transverse rigidity of the whole track beam 1. The transverse connection 12 is of a concrete structure, so that the cost can be reduced and the processing is convenient. Because the side beam 11 and the cross connection 12 both adopt concrete structures, the complexity of the joint of the side beam 11 and the cross connection 12 is reduced, and the site construction and the control are convenient.

According to the utility model discloses guide rail roof beam 100 through setting up curb girder 11 to built-in prestressed reinforcement 116's concrete structure, compares with traditional curb girder 11, has reduced the thickness of curb girder 11, has improved track roof beam 1's durability, and under the prerequisite that satisfies track roof beam 1's security and suitability, can reduce cost. The top of the side beam 11 is provided with the inner flange 111 and the first outer flange 112, so that the width of the top surface of the side beam 11 is widened, the running safety of the railway vehicle 300 is effectively ensured, and the bottom surface of the inner flange 111 is higher than that of the first outer flange 112, so that the guide wheel 302 of the railway vehicle 300 can be prevented from interfering with the inner flange 111 of the side beam 11, and the running smoothness of the railway vehicle 300 is ensured. In addition, by arranging the side beams 11 and the cross links 12 into a concrete structure, the arrangement form of joints at the joints of the side beams 11 and the cross links 12 is simplified, and the site construction and the control are more convenient.

According to some embodiments of the present invention, as shown in fig. 1 and 3, the bottom surface of each inner flange 111 extends obliquely upward in the direction from the outside to the inside. So set up, can further increase the space between interior flange 111 bottom surface and the leading wheel 302, can further avoid leading wheel 302 and interior flange 111 to take place to interfere to can guarantee rail vehicle 300 well and normally travel, and can reduce the material quantity, reduce cost.

According to some embodiments of the present invention, the track beam 1 includes a plurality of track beam sections, the plurality of track beam sections are sequentially arranged along the length direction of the track beam 1, each track beam section includes the above two side beams 11 and a plurality of cross-links 12, the plurality of cross-links 12 can be arranged along the length direction of the track beam 1, as shown in fig. 2, in the description of the present invention, the meaning of "a plurality" is two or more. For example, referring to fig. 2, the track beam 1 is formed by connecting a plurality of track beam segments in sequence along the longitudinal direction of the track beam 1, and a plurality of cross links 12 may be provided at regular intervals along the longitudinal direction of the track beam segments. Wherein, the track beam section can be prefabricated in the mill, and horizontal antithetical couplet 12 can adopt the construction mode of secondary pouring at the building site, from this, has reduced the dead weight of track beam section, and the hoist and mount and the transportation of the track beam section of being convenient for practice thrift the time limit for a project simultaneously, reduce cost.

According to some embodiments of the present invention, as shown in fig. 3, the top of each side beam 11 is provided with a running structure 114, the hardness of the running structure 114 is less than that of concrete, and the top surface of the running structure 114 is a running surface (i.e., a surface in contact with the running wheels 301 of the railway vehicle 300). Therefore, as the hardness of the running structure 114 is set to be smaller than that of the concrete of the side member 11, the material of the running structure 114 is soft, so that the vibration damping performance of the track beam 1 is improved, the comfort of the track vehicle 300 during running is effectively ensured, and the track vehicle has the advantage of low noise.

Further, a recess 115 is formed in the top of each side member 11, wherein the running structure 114 is provided in the recess 115, and the top surface of the running structure 114 is flush with the top surface of the side member 11. Referring to fig. 3 in combination with fig. 1, the top of the groove 115 is open, the groove 115 is located at the top of the side sill 11, the running structure 114 is located in the groove 115, and the top surface of the running structure 114 is disposed flush with the top surface of the side sill 11. Therefore, the smoothness of the top surface of the side beam 11 is effectively ensured, bumping is avoided when the rail vehicle 300 runs, and the running stability and riding comfort of the rail vehicle 300 are improved. In addition, the groove 115 has a limiting function on the running structure 114, so that the contact between the top surface of the running structure 114 and the running wheels 301 can be effectively ensured.

Alternatively, the running structure 114 is a bituminous concrete structure. The asphalt concrete structure is a mixture prepared by mixing mineral aggregate with a certain gradation composition, broken stone or crushed gravel, stone chips or sand, mineral powder and the like with a certain proportion of road asphalt material under strictly controlled conditions. So set up, can effectively improve track beam 1's damping performance to improve the travelling comfort by bus, bituminous concrete structure has the advantage of low noise simultaneously, has reduced the noise when rail vehicle 300 travels. Furthermore, the wheels adhere better to the running structure 114 of the asphalt concrete structure than conventional concrete running surfaces, and the maintenance work of the asphalt concrete structure is simple and the asphalt concrete structure can be recycled. But is not limited thereto.

According to some embodiments of the utility model, guide rail roof beam 100 includes two track roof beams 1, and two track roof beams 1 interval sets up in the left and right sides direction, is equipped with evacuation platform 2 between two track roof beams 1. As shown in fig. 2 and 3, two track beams 1 are arranged at intervals along the width direction of the track beam 100, and an evacuation platform 2 is arranged between the two track beams 1, so that the two track beams 1 can provide a maintenance passage and a maintenance operation platform for the track beam 100 and line equipment (not shown), and the evacuation platform 2 can provide a passage for safe evacuation and evacuation of passengers on the track vehicle 300 in case of an emergency of the track vehicle 300.

Further, the track beam 1 is supported on the cover beam 201, the cover beam 201 is provided with a cushion stone 3, and the evacuation platform 2 is supported on the cushion stone 3. Referring to fig. 3, two track girders 1 and an evacuation platform 2 are positioned on a pier 200, the pier 200 includes a capping girder 201 and a column 202, a bottom surface of the capping girder 201 is connected with the column 202, the two track girders 1 are both laid on the capping girder 201, the evacuation platform 2 is positioned between the two track girders 1, and the evacuation platform 2 is installed on the capping girder 201 through a bed stone 3. From this, evacuation platform 2 is independent each other with two track roof beams 1 of both sides, guarantees effectively that evacuation platform 2 can separately atress with track roof beam 1, so both can reduce the pressure that guide rail roof beam 100 bore, can reduce the height of guide rail roof beam 100 again, and guide rail roof beam 100's structural stability is stronger, the maintenance of the guide rail roof beam 100 of being convenient for simultaneously.

According to some embodiments of the present invention, referring to fig. 3, the prestressed reinforcement 116 in each side beam 11 is plural, and the plurality of prestressed reinforcement 116 are arranged along the height direction of the side beam 11. So set up, can effectively guarantee track roof beam 1's bearing capacity, simplified the arrangement form of prestressing force reinforcing bar 116 in the curb girder 11 simultaneously, the processing of the curb girder 11 of being convenient for.

In some alternative embodiments, as shown in fig. 3, the bottom of each side beam 11 is connected to the cap beam 201 through a support 13, which effectively ensures the stability of the installation of the track beam 1, and the cross link 12 is spaced up and down from the cap beam 201, which facilitates the processing and installation of the track beam 1. In addition, the two side beams 11 and the cross links 12 of the track beam 1 have a certain flexibility with respect to the cap beam 201, thereby having a certain earthquake-resistant performance.

According to some embodiments of the present invention, the bottom of each side beam 11 has a second outer flange 113 extending away from the other side beam 11. As shown in fig. 1 and 3, the bottom portions of the sides of the two side members 11 facing away from each other are each provided with a second outer flange 113 extending outward, the second outer flange 113 may have the same structure and size as the first outer flange 112, and the second outer flange 113 and the first outer flange 112 may be symmetrical with respect to a center plane in the height direction of the side member 11. Thus, by providing the second outer flange 113, the bottom area of the side member 11 is increased, so that the side member 11 can be more stably supported on the lid member 201, and the side member 11 is simple in structure, easy to process, and low in cost.

According to the utility model discloses guide rail roof beam 100's construction method is as follows: the side beam 11 can be prefabricated in a factory, the bearing capacity of the track beam 1 is ensured by tensioning prestressed steel bars 116 in the side beam 11, then an asphalt concrete structure is laid on the top surface of the side beam 11 to serve as a running surface of the track beam 1, when the maintenance of the side beam 11 reaches the concrete strength and age specified by the specification, the side beam 11 after being demolded is transported to a construction site and erected, a scaffold is erected after the side beam 11 is stably erected, then a transverse connection 12 of the concrete structure is cast on site, finally an evacuation platform 2 is installed between the two track beams 1, and the evacuation platform 2 and a cover beam 201 are lapped through a cushion stone 3.

Other constructions and operations of the guide rail beam 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A guide rail beam, comprising:

the track beam comprises two side beams and a transverse connection, the two side beams are arranged at left and right intervals, each side beam is of a concrete structure with built-in prestressed steel bars, an inner flange extending towards the other side beam and a first outer flange extending away from the other side beam are arranged at the top of each side beam, the bottom surface of the inner flange is higher than the bottom surface of the first outer flange, the transverse connection is arranged between the lower parts of the two side beams, and the transverse connection is of a concrete structure.

2. The guideway beam of claim 1, wherein a bottom surface of each of the inner flanges extends obliquely upward in an outward-inward direction.

3. The guide rail beam according to claim 1, wherein the rail beam comprises a plurality of rail beam sections, the plurality of rail beam sections are sequentially arranged along the length direction of the rail beam, each rail beam section comprises two side beams and a plurality of transverse links, and the plurality of transverse links are arranged at intervals along the length direction of the rail beam.

4. A guide rail beam according to any one of claims 1-3, wherein the top of each side beam is provided with a running structure, the hardness of which is less than that of concrete, and the top surface of which is a running surface.

5. The guide rail beam according to claim 4, wherein a groove is formed in the top of each of the side beams, wherein the running structure is disposed in the groove and a top surface of the running structure is flush with the top surface of the side beam.

6. The guide rail beam according to claim 4, wherein the running structure is a bituminous concrete structure.

7. A guide rail beam according to any one of claims 1-3, characterized in that the guide rail beam comprises two said rail beams, which are arranged at a distance in the left-right direction, and an evacuation platform is arranged between the two said rail beams.

8. The guideway beam of claim 7, wherein the guideway beam is supported on a cover beam, the cover beam having a stone pad thereon, the evacuation platform being supported on the stone pad.

9. The guideway beam of claim 1, wherein there are a plurality of the tendons in each of the side beams, and the plurality of the tendons are arranged in a height direction of the side beams.

10. A guide rail beam according to any one of claims 1-3, wherein the bottom of each of the side beams has a second outer flange extending away from the other of the side beams.