CN106676978B - Monorail transit track beam support system - Google Patents
Monorail transit track beam support system Download PDFInfo
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- CN106676978B CN106676978B CN201710175454.6A CN201710175454A CN106676978B CN 106676978 B CN106676978 B CN 106676978B CN 201710175454 A CN201710175454 A CN 201710175454A CN 106676978 B CN106676978 B CN 106676978B
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- 238000005452 bending Methods 0.000 claims abstract description 21
- 238000010008 shearing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a monorail traffic track beam support system which comprises a support connecting beam and a support structure, wherein the support structure comprises a support upper structure and a support lower structure, the support upper structure is effectively connected with the bottom of a track beam, the support lower structure is effectively connected with a bridge lower structure, and the support connecting beam effectively connects the adjacent support upper structures at the same transverse bridge position of two parallel track beams. The invention ensures that the stress in the lower support structure of the track beam is redistributed and the bending moment and the tensile force borne by the support are reduced by reliably transferring the load by arranging the support connecting beam between the upper support structures of the two-way track beam and connecting the adjacent supports into a whole, thereby effectively improving the safety performance of the whole system and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of monorail traffic, in particular to a monorail traffic track beam support system.
Background
The monorail track traffic has the advantages of simple construction, strong adaptability, low cost and the like, and the track beam has small self weight and is simple to manufacture and install. However, as the train runs on a single track, a large torque is generated (the moment vector is parallel to the running direction), and in the existing system, the torque is completely transmitted by the support under the single track beam, so that the support is subjected to a large tensile stress. The bending moment of the track beam is a common and serious problem, the curved track beam is subjected to huge transverse bending moment when a train passes through, so that the track beam has a rollover tendency, and if the support has no tensile capacity or fails in tensile strength, the track beam can roll over and cause the vehicle to roll over.
At present, the scheme for solving the problem that the track beam is tipped by bending moment is to adopt a hinge-column-shaped cast steel tension-compression support which can bear larger bending moment and tensile force, but has the disadvantages of complex structure, large processing difficulty, poor fatigue property, easy failure of the support and higher cost.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a monorail traffic track beam support system capable of reducing support bending moment and tension and reducing support cost.
The invention provides a monorail traffic track beam support system which comprises a support connecting beam and a support structure, wherein the support structure comprises a support upper structure and a support lower structure, the support upper structure is effectively connected with the bottom of a track beam, the support lower structure is effectively connected with a bridge lower structure, and the support connecting beam effectively connects two adjacent support upper structures at the same transverse bridge position of two parallel track beams.
According to one embodiment of the monorail transit rail beam support system of the invention, the support substructure is operatively connected with a bridge substructure, wherein the support structure is a bridge support capable of efficiently transferring rail beam overhead loads to the bridge substructure.
According to one embodiment of the monorail transit rail beam support system of the invention, the support structure further comprises a support mid-structure arranged between the support upper structure and the support lower structure for transferring loads.
According to an embodiment of the monorail traffic rail beam support system of the present invention, said support connection beam is at least two in number.
According to one embodiment of the monorail transit rail beam support system of the present invention, the support connection beam is a beam member capable of reliably transferring one or more of bending moment, torque, tensile force, compressive force and shear force, and the support connection beam effectively connects two pieces of rail beams to a support superstructure that is adjacent in the same cross-bridge position outside the limits of motion of the rail vehicle.
According to an embodiment of the monorail traffic rail beam support system of the present invention, said support structures are at least four in number.
Compared with the prior art, the support system of the monorail traffic track beam changes the design idea in the monorail traffic system in the prior art, and the support connecting beam is arranged between the upper support structures of the bidirectional track beam and connects the supports into a whole, so that the load is reliably transmitted, the stress in the lower support structure of the track beam is redistributed, the bending moment and the tensile force borne by the supports are reduced, the safety performance of the whole system is effectively improved, and the production cost is reduced. The single-rail traffic track beam support system is simple in structure, reasonable in design and clear in stress, greatly reduces bending moment borne by the support, reduces design complexity and difficulty of the support system, prolongs service life of the support and reduces cost of the support.
Drawings
FIG. 1 shows a schematic structural view of a monorail traffic rail beam support system in accordance with an exemplary embodiment of the present invention.
Fig. 2 shows a force structure diagram of the existing monorail traffic rail beam support system adopted in the comparative example.
Fig. 3 shows a force structure diagram of a monorail traffic rail beam support system adopting the invention in an example.
Description of reference numerals:
1-track beam, 2-support upper structure, 3-support connecting beam, 4-support middle structure, 5-support lower structure and 6-cover beam.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The structure and principle of the monorail traffic rail beam unit and system of the present invention will be described in detail below.
FIG. 1 shows a schematic structural view of a monorail traffic rail beam support system in accordance with an exemplary embodiment of the present invention. The support system of the monorail traffic track beam is actually a support system relative to a track beam unit consisting of two opposite track beams, and can be popularized and applied to the integral monorail track beam based on the basic structure and the actual working condition of the support system.
As shown in fig. 1, according to an exemplary embodiment of the present invention, the monorail transit rail beam support system comprises a support structure and a support connection beam 3, the support structure comprises a support upper structure 2 and a support lower structure 5, the support upper structure 2 is operatively connected to the bottom of a rail beam 1, the support lower structure 5 is operatively connected to a bridge lower structure, and the support connection beam 2 operatively connects two parallel rail beams 1 to the support upper structure 2 in the same transverse bridge position.
The single-rail traffic system is a kind of railway, and features that only one rail is used instead of two balanced rails of traditional railway. The monorail transportation system is mainly divided into a suspension type monorail and a straddle type monorail according to a running mode and a running structure, a train of a suspension type monorail (also called an aerial rail train) is suspended below a rail, and the straddle type monorail is characterized in that a rail vehicle straddles above a rail and two sides of the rail cover the rail. The inventive support system is in fact applied on straddle-type single-rail railways, wherein two pieces of track beam 1 are arranged parallel to each other and formed as bidirectional track beams, each piece of track beam 1 individually carrying a rail vehicle (not shown), i.e. the track beam 1 is a beam body directly carrying rail vehicles, on which rails can be laid for the running of the rail vehicles, and the rail vehicles straddle the track beam and the rails above the track beam.
For a group of monorail transit track beam support systems, the support structures provided by the present invention are preferably at least arranged at two ends of the track beam 1, that is, the number of the support structures is at least four, at least one support structure is respectively arranged at two ends of each track beam 1, or a plurality of support structures are arranged on each track beam 1 or a support structure is additionally arranged in the middle of each track beam 1 according to actual requirements.
According to the invention, the support substructure 5 is operatively connected to a bridge substructure and the support structure is a bridge support capable of efficiently transferring the load on the track beam 1 to the bridge substructure. As shown in fig. 1, the bridge substructure may be a capping beam 6, and the capping beam 6 serves to transmit load to the pier.
Preferably, as shown in fig. 1, the support structure further comprises a support middle structure 4 disposed between the support upper structure 2 and the support lower structure 5 and operatively connecting the support upper structure 2 and the support lower structure 5, and the support middle structure 4 may be a middle structure of any available support type, and can transmit vertical loads and realize the turning and displacement functions.
The support connecting beams 3 are arranged between the support upper structures 5 of the two adjacent support structures at the same transverse bridge direction position of the two parallel track beams 1 and effectively connected with the two support upper structures 5, namely the number of the support connecting beams 3 is at least two, the at least two support connecting beams 3 are respectively connected with the two support upper structures 5 at the same transverse bridge direction position of the two parallel track beams 1, but the number and the positions of the support connecting beams 3 can also be adjusted according to the setting number and the setting position of the support structures. Specifically, the bearer connection beam 3 is a beam member capable of reliably transferring one or more loads of bending moment, torque, tensile force, compressive force and shearing force, and the bearer connection beam 3 effectively connects two parallel rail beams 1 to a bearer superstructure 5 adjacent to the same transverse bridge position outside the moving limit of the rail vehicle.
The basic structure and principle of the monorail traffic track beam support system are as follows: the upper structure 2 of the support is connected with the track beam 1, and the upper structures 2 of the adjacent supports at the same transverse bridge position of the two parallel track beams 1 are connected through a support connecting beam 3; the support lower structure 5 is connected with the cover beam 6; the support upper structure 2, the support connecting beam 3, the support middle structure 4 and the support lower structure 5 form the monorail traffic track beam support system together.
Under the bad working condition (for example, when the rail vehicle passes through a curved rail), because the support superstructure 2 is connected with the rail beam 1, if the support connecting beam 3 is not arranged, the support superstructure 2 can bear larger vertical force, transverse force and larger transverse bending moment, and the rail beam 1 can be caused to roll over, so that the vehicle can be derailed. In order to keep the track beam 1 stable, the transverse bending moment needs to be balanced by a complicated support structure design, whereby the support puts one end in compression and the other end in tension, and thus the support at the lower end needs to satisfy complicated stress and fatigue conditions.
However, when the present invention connects two parallel track beams 1 with their adjacent support superstructures 2 in the same transverse bridging position by means of support connecting beams 3, the plurality of supports under the track beams will form an integrated support system. When the railway vehicle runs, the stress of the support below the track beam is redistributed, namely the force and moment born by the upper support upper structure 2 on one stressed track beam 1 are transmitted to the upper support structure of the other track beam through the support connecting beam 3, so that the self weight of the other track beam is utilized to reestablish a balance force system. And because the distance between the two-way track beams is larger, the gravity of the other track beam can generate larger reverse bending moment, so that the transverse bending moment born by the support below the stressed track beam is greatly reduced.
That is, the upper structures of adjacent supports on the track beams of the uplink and downlink lines are connected into a whole by arranging the support connecting beam, and the upper structure of the support for connection can select support parts such as a support embedded part or an upper support plate and the like which can transmit the transverse bending moment of the track beam, so that the transverse bending moment born by the support is effectively reduced, the support structure is simplified, the engineering cost is reduced, and the safety and the reliability are also improved.
The monorail traffic rail beam unit and system of the present invention are further described below by means of specific examples and comparative examples.
Fig. 2 shows a force structure diagram of a conventional monorail transit rail beam support system adopted in a comparative example, and fig. 3 shows a force structure diagram of a monorail transit rail beam support system adopted in an example.
As shown in fig. 2 and 3, the two track beams are respectively subjected to a vertical force F681 kN (constant load 240kN, static and live load 441kN) and a bending moment M480 kN · M, and the conventional bearing system (fig. 2) uses a roll bearing and a bottom anchor bar reaction force N2＝N4Is tensile and has a magnitude of 460kN, N1＝N3Is pressure and has a magnitude of 1134 kN; in the embodiment, the support in the support system (figure 3) of the invention adopts any form, and the support connecting beam is effectively connected with the upper structure of the support and can effectively transmit bending moment, so that the bottom counter force N of the support is generated at the moment5、N6、N7、N8Are all pressure, magnitude is N5＝N6＝455kN、N7＝N8227kN, the monorail traffic track beam support system disclosed by the invention can greatly improve the stress condition of a support lower structure, improve the safety performance of the system and reduce the production cost of the system.
In conclusion, the support connecting beam is arranged between the upper support structures of the two-way track beam and the supports are connected into a whole, so that the load is reliably transferred, the stress in the lower support structure of the track beam is redistributed, the bending moment and the tensile force borne by the supports are reduced, the safety performance of the whole system is effectively improved, and the production cost is reduced. The single-rail traffic track beam support system is simple in structure, reasonable in design and clear in stress, greatly reduces bending moment borne by the support, reduces design complexity and difficulty of the support system, prolongs service life of the support and reduces cost of the support.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (4)
1. A monorail transit rail beam support system comprises a support connection beam and a support structure, wherein the support structure comprises a support upper structure and a support lower structure, the support upper structure is effectively connected with the bottom of a rail beam, the support lower structure is effectively connected with a bridge lower structure, the support connection beam effectively connects two parallel rail beams with adjacent support upper structures at the same transverse bridge position, the support connection beam is a beam component capable of reliably transmitting one or more loads of bending moment, torque, tensile force, pressure and shearing force, and the support connection beam effectively connects a plurality of support upper structures adjacent to the same transverse bridge position of the two rail beams beyond the moving limit of a rail vehicle.
2. The monorail traffic rail beam support system of claim 1, wherein the number of support connection beams is at least two.
3. The monorail transit rail-beam support system of claim 1, wherein the support substructure is operatively connected to a bridge substructure, wherein the support structure is a bridge support capable of efficiently transferring rail-beam overhead loads to the bridge substructure.
4. The monorail traffic rail beam support system of claim 1, wherein the number of support structures is at least four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175454.6A CN106676978B (en) | 2017-03-22 | 2017-03-22 | Monorail transit track beam support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175454.6A CN106676978B (en) | 2017-03-22 | 2017-03-22 | Monorail transit track beam support system |
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| Publication Number | Publication Date |
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| CN106676978A CN106676978A (en) | 2017-05-17 |
| CN106676978B true CN106676978B (en) | 2020-06-19 |
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| CN201710175454.6A Active CN106676978B (en) | 2017-03-22 | 2017-03-22 | Monorail transit track beam support system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107447603B (en) * | 2017-09-30 | 2023-12-22 | 成都市新筑交通科技有限公司 | Pull-press shaft type monorail beam support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367634Y (en) * | 1999-05-18 | 2000-03-08 | 重庆市轨道交通总公司 | Straddle-seat type tension-bearing-seat for single track of communication |
| CN101440601A (en) * | 2008-12-31 | 2009-05-27 | 北京交通大学 | Position adjustable rail beam bearing |
| KR20120120680A (en) * | 2011-04-25 | 2012-11-02 | 유니슨이테크 주식회사 | Apparatus for manufacturing curvilineal track beam for monorail in mold room |
| CN102995556A (en) * | 2012-12-04 | 2013-03-27 | 北京交通大学 | Support for straddle-type monorail traffic track beam |
| CN203403354U (en) * | 2013-07-11 | 2014-01-22 | 中铁工程设计咨询集团有限公司 | Tension-bearing cast steel support |
| CN206666941U (en) * | 2017-03-22 | 2017-11-24 | 成都市新筑路桥机械股份有限公司 | A kind of new monorail transit rail beam bearing system |
-
2017
- 2017-03-22 CN CN201710175454.6A patent/CN106676978B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367634Y (en) * | 1999-05-18 | 2000-03-08 | 重庆市轨道交通总公司 | Straddle-seat type tension-bearing-seat for single track of communication |
| CN101440601A (en) * | 2008-12-31 | 2009-05-27 | 北京交通大学 | Position adjustable rail beam bearing |
| KR20120120680A (en) * | 2011-04-25 | 2012-11-02 | 유니슨이테크 주식회사 | Apparatus for manufacturing curvilineal track beam for monorail in mold room |
| CN102995556A (en) * | 2012-12-04 | 2013-03-27 | 北京交通大学 | Support for straddle-type monorail traffic track beam |
| CN203403354U (en) * | 2013-07-11 | 2014-01-22 | 中铁工程设计咨询集团有限公司 | Tension-bearing cast steel support |
| CN206666941U (en) * | 2017-03-22 | 2017-11-24 | 成都市新筑路桥机械股份有限公司 | A kind of new monorail transit rail beam bearing system |
Non-Patent Citations (1)
| Title |
|---|
| 跨座式单轨交通工程线路线形调整技术研讨;范正述等;《市政技术》;20101231;第28卷(第4期);第46-48页 * |
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| CN106676978A (en) | 2017-05-17 |
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Effective date of registration: 20240329 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Patentee after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Country or region after: China Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. Country or region before: China |