CN113293657A - Tram steel longeron track structure that municipal administration pipeline exempted from to tear open and changes into easy maintenance - Google Patents
Tram steel longeron track structure that municipal administration pipeline exempted from to tear open and changes into easy maintenance Download PDFInfo
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- CN113293657A CN113293657A CN202110618865.4A CN202110618865A CN113293657A CN 113293657 A CN113293657 A CN 113293657A CN 202110618865 A CN202110618865 A CN 202110618865A CN 113293657 A CN113293657 A CN 113293657A
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- steel
- longitudinal beam
- tram
- steel longitudinal
- track
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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
- E01B21/00—Track superstructure adapted for tramways in paved streets
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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
- E01B21/00—Track superstructure adapted for tramways in paved streets
- E01B21/02—Special supporting means; Draining of rails
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Abstract
A tram steel longitudinal beam track structure with municipal pipelines free of disassembly and easy to maintain comprises a track assembly, wherein the track assembly comprises steel rails and fastener assemblies; the steel longitudinal beam is formed by connecting two I-shaped steels arranged in parallel by welding a plurality of horizontally arranged circular steel pipes on web plates on opposite surfaces; the head end and the tail end of the steel longitudinal beam are fixedly connected on a roadbed foundation, and the middle suspension frame forms a crossing area of the municipal pipeline; the steel rails are arranged on the upper portion of the steel longitudinal beam along the length direction, one steel rail is arranged on each I-shaped steel, two steel rails are arranged on the two I-shaped steels, and the steel rails and the I-shaped steels are connected and fixed together through fastener assemblies. The invention avoids most of pipeline transformation and protective structure reconstruction work, and greatly reduces the influence of municipal pipeline maintenance problems on the operation of the tramcar.
Description
Technical Field
The invention relates to the technical field of rail engineering, is suitable for rail engineering of a tramcar passing through a section with more pipelines or large maintenance requirement, and particularly provides a tramcar steel longitudinal beam rail structure with a municipal pipeline free of disassembly and easy maintenance.
Background
The common tramcar track structure generally comprises steel rails, fasteners, sleepers and an integral track bed (common track bed), wherein the sleepers and the track bed are made of reinforced concrete.
In the existing tramcar line, the roadbed treatment depth is generally in the range of 0.6-2 m below the rail, and municipal pipelines in the depth range are large in quantity and complicated. The existing pipeline treatment measures mainly comprise two measures, namely, shifting and in-situ protection. The pipeline is changed, so that the daily life around the pipeline is influenced, and the construction progress is slowed down; the pipeline is protected in situ, so that the pipeline and surrounding soil are difficult to avoid and can be influenced by construction disturbance, and otherwise, the construction quality and speed of the roadbed are limited; and both modes are less economical. After the tramcar is built and operated in the later period, municipal pipeline located below the tramcar track structure is very inconvenient to maintain and repair, the pipeline maintenance and repair operation adversely affects the operation of the tramcar, and the existing reinforced concrete track bed may need to be damaged in serious cases to cause the tramcar to stop operation.
Tram and municipal pipeline are the infrastructure in city, are the normal operating service in city jointly, and the daily maintenance and the urgent repair of municipal pipeline can cause the influence to the tram operation to a certain extent, maintain and the tram normal operation's conflict each other for reducing the pipeline operation, need to propose the tram track pattern that can satisfy the municipal pipeline maintenance demand, have the short time again and resume the operation characteristics.
Disclosure of Invention
The invention provides a tramcar steel longitudinal beam track structure with a municipal pipeline free of disassembly and easy to maintain, and aims to solve the technical problem of conflict between normal operation of a tramcar and maintenance and repair of the municipal pipeline.
The technical scheme of the invention is as follows:
a tram steel longitudinal beam track structure with municipal pipelines free of disassembly and easy to maintain comprises a track assembly, wherein the track assembly comprises steel rails and fastener assemblies; the steel longitudinal beam is formed by connecting two I-shaped steels arranged in parallel by welding a plurality of horizontally arranged circular steel pipes on web plates on opposite surfaces; the head end and the tail end of the steel longitudinal beam are fixedly connected on a roadbed foundation, and the middle suspension frame forms a crossing area of the municipal pipeline;
the steel rails are arranged on the upper portion of the steel longitudinal beam along the length direction, one steel rail is arranged on each I-shaped steel, two steel rails are arranged on the two I-shaped steels, and the steel rails and the I-shaped steels are connected and fixed together through fastener assemblies.
The roadbed foundation is of a reinforced concrete structure, and wing plates of the I-shaped steel are connected and fixed through pre-buried bolts and connecting steel plates on the roadbed foundation.
The head end and the tail end of the steel longitudinal beam are connected with a common track bed, and expansion joints are arranged between the head end and the tail end of the steel longitudinal beam and the common track bed; the common track bed is provided with a track structure of the common track bed.
The lengths of the two I-shaped steels of the steel longitudinal beam are symmetrically or asymmetrically arranged; the round steel pipes are arranged at intervals.
And a plurality of reinforcing rib plates are arranged between the upper wing plate and the lower wing plate of the I-shaped steel.
The fastener component comprises a fastener iron base plate, an elastic strip, a fastener connecting bolt, a nut and a gauge block.
The fastener connecting bolt penetrates through the elastic strip, the fastener iron base plate and the wing plate of the I-shaped steel to connect and fix the steel rail and the I-shaped steel together.
The invention has the technical characteristics that:
the steel longitudinal beam track structure is suitable for sections of tramcars with more pipelines or large maintenance requirements, and the steel longitudinal beam track structure is erected above the pipelines through connection with a roadbed foundation without disturbing the existing pipelines and surrounding soil bodies. If the pipeline needs maintenance in the later stage, the steel longitudinal beam track structure can be detached and installed on the foundation structure again. The steel rail is generally a groove-shaped steel rail, and other rail types can be selected according to the actual condition of the line; wrapping materials matched with the steel rail; the fastener is matched with the steel rail for use, a II-type w elastic strip is adopted, and the fastener bolt is an M24 hexagon bolt matched with an M24 hexagon nut for use; the fastener is matched with a fastener cover protection structure; the steel longitudinal beam is formed in a ladder shape by welding a round steel pipe in the middle of 2I-shaped steel. The ladder shape formed by the I-shaped steel and the steel pipe ensures the geometric dimension of the steel longitudinal beam, thereby ensuring the geometric shape and position of the track; the steel longitudinal beam welding ribbed plate strengthens the stability of the steel structure. The length of the steel longitudinal beam is about 5m, 8 pairs of fasteners are arranged, the length can be increased or shortened under special conditions (1-2 pairs of fasteners are preferably increased or reduced), and asymmetric length can also be arranged. According to the steel longitudinal beam track structure, every 2 welded circular pipes have a spacing distance, and a pipeline unit can perform micro operation.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the steel longitudinal beam track structure, every 2 welded circular pipes have a spacing distance, and a pipeline unit can perform micro operation; if the demand scope of pipeline maintenance is great, can tear off foundation structure with whole steel longeron, make things convenient for the pipeline operation, follow-up carries out the track debugging with steel longeron installation back again, resumes to lead to the car. The invention solves the problem of maintenance of the municipal pipeline after the tramcar lays the upper part of the municipal pipeline, avoids most of pipeline transformation and protection structure reconstruction work, shortens the construction time, and greatly reduces the influence of the municipal pipeline maintenance problem on the tramcar operation.
Drawings
Figure 1 is a schematic cross-sectional view of the steel stringer rail structure of the present invention,
figure 2 is a plan view of the steel stringer rail structure of the present invention,
FIG. 3 is a longitudinal cross-sectional view of the steel stringer rail structure of the present invention;
description of the figure numbering:
the steel longitudinal beam comprises steel longitudinal beams 1, I-shaped steel 11, wing plates 111, web plates 112, circular steel pipes 12, a roadbed foundation 2, a crossing area 3, municipal pipelines 31, a track assembly 4, steel rails 41, fastener iron base plates 42, elastic strips 43, fastener connecting bolts 44, connecting steel plates 441, embedded bolts 442, a common track bed 5, expansion joints 6 and rib plates 7.
Detailed Description
Referring to fig. 1, 2 and 3, the tram steel longitudinal rail structure with the municipal pipeline free of disassembly, improved in structure and easy to maintain comprises a rail assembly, a fastening assembly and a steel rail, wherein the rail assembly comprises a steel rail 41 and a fastening assembly 4; the steel longitudinal beam 1 is formed by connecting two I-shaped steels 11 which are arranged in parallel through welding a plurality of horizontally arranged circular steel pipes 12 on web plates 112 on opposite surfaces; the end-to-end frames of the steel longitudinal beam 1 are fixedly connected on a roadbed foundation 2, and a middle suspension frame forms a crossing area 3 of a municipal pipeline 31;
referring to fig. 1, the steel rails 41 are installed on the upper portion of the steel longitudinal beam 1 along the length direction, one steel rail 41 is installed on each i-beam 11, two steel rails 41 are installed on two i-beams 11, the steel rail 41 and the i-beams 11 are connected and fixed together through a fastener assembly 4, the fastener assembly comprises a fastener iron base plate 42, an elastic strip 43, a fastener connecting bolt 44, a nut, a gauge block and the like, and referring to fig. 1, the fastener connecting bolt 44 penetrates through the elastic strip 43, the fastener iron base plate 42 and a wing plate 111 on the upper portion of the i-beam to connect and fix the steel rail 41 and the i-beams 11 together.
Referring to fig. 2 and 3, the roadbed foundation 2 is of a reinforced concrete structure, and the wing plates 111 of the i-shaped steel 11 are connected and fixed on the roadbed foundation through embedded bolts 442 and connecting steel plates 441.
Referring to fig. 2 and 3, the head end and the tail end of the steel longitudinal beam 1 are connected with a common ballast bed 5, and expansion joints 6 are arranged between the head end and the tail end of the steel longitudinal beam 1 and the common ballast bed 5; the common track bed 5 is provided with a track structure of the common track bed, and the track structure of the common track bed is of a structure in the prior art.
Referring to fig. 2, the lengths of two i-beams 11 of the steel longitudinal beam 1 are symmetrically or asymmetrically arranged; the circular steel pipes 12 are arranged at intervals.
Referring to fig. 1, a plurality of reinforcing ribs 7 are arranged between the upper wing plate and the lower wing plate of the I-shaped steel.
The construction method comprises the following steps:
the I-shaped steel 11 and the round steel pipe 12 and the I-shaped steel 11 and the rib plate 7 are connected by welding, and should meet relevant requirements, the factory welding is adopted as much as possible. All structures are punched in a factory through drilling by a drilling machine, and chamfering treatment is carried out after drilling, so that the requirements of relevant specifications are met. After punching, all steel structure components need to be derusted and polished to be smooth, and then all the steel structure components are coated with the PTN waterproof sealing material.
The construction unit should accurately assemble the steel rail 41, the fastener assembly 4 and the steel longitudinal beam 1 into a whole at a proper site and then transport the steel rail to an installation site. Under the condition of locking the rail temperature, the connecting steel plates 441 at the two ends of the steel longitudinal beam 1 are installed on the steel longitudinal beam, wherein a slotted hole is formed in one end of the steel longitudinal beam to meet the requirement of the steel longitudinal beam on stretching. The roadbed embedded bolt 442 is positioned in the middle of the slotted hole, and after the roadbed embedded bolt is fixed through the exposed double nuts and the lower nuts, the roadbed base 2 is poured in a professional way. The connecting steel plate 441 may be cut according to the field situation to be aligned with the edge of the roadbed cap as much as possible. After the steel longitudinal beam track structure is installed, the PTN waterproof sealing material needs to be subjected to spray repair coating near all the bolts.
The working principle of the invention is as follows:
when the tramcar passes through a section with more pipelines or large maintenance demand, the steel longitudinal beam track structure is erected above the pipelines through the connection with the roadbed foundation, and the existing pipelines and surrounding soil bodies are not required to be disturbed basically during construction. If the pipeline needs maintenance in the later period, the welded circular pipes of the steel longitudinal beam rail structure have a spacing distance, and the pipeline unit can perform micro operation; if the demand range of pipeline maintenance is large, the steel longitudinal beam track structure can be detached and installed on the foundation structure again. Thereby very big degree reduced the influence of municipal pipeline maintenance problem to tram operation.
Claims (7)
1. A tram steel longitudinal beam track structure with municipal pipelines free of disassembly and easy to maintain comprises a track assembly, wherein the track assembly comprises steel rails and fastener assemblies; the ladder-shaped steel longitudinal beam is characterized by further comprising a ladder-shaped steel longitudinal beam (1) which is formed by connecting two I-shaped steels (11) arranged in parallel through welding a plurality of horizontally arranged round steel pipes (12) on web plates (112) on opposite surfaces; the end to end of the steel longitudinal beam (1) is erected on the roadbed foundation (2) and fixedly connected with the roadbed foundation, and the middle suspension frame forms a crossing area (3) of the municipal pipeline (31);
the steel rails (41) are arranged on the upper portion of the steel longitudinal beam (1) along the length direction, one steel rail (41) is arranged on each I-shaped steel (11), two steel rails (41) are arranged on the two I-shaped steels (11), and the steel rails (41) and the I-shaped steels (11) are connected and fixed together through fastener assemblies.
2. The tram steel longitudinal beam track structure free of municipal pipeline disassembly and easy to maintain as claimed in claim 1, wherein the roadbed foundation (2) is a reinforced concrete structure, and the wing plates (111) of the I-shaped steel (11) are fixedly connected with the roadbed foundation through embedded bolts (442) and connecting steel plates (441).
3. The tram steel longitudinal beam track structure free of disassembly and modification and easy to maintain of the municipal pipeline according to claim 1, wherein the head end and the tail end of the steel longitudinal beam (1) are connected with a common track bed (5), and expansion joints (6) are arranged between the head end and the tail end of the steel longitudinal beam (1) and the common track bed; the common track bed (5) is provided with a track structure of the common track bed.
4. The tram steel longitudinal beam track structure free of municipal pipeline disassembly and easy to maintain as claimed in claim 1, wherein the lengths of the two I-shaped steels (11) of the steel longitudinal beam (1) are symmetrically or asymmetrically arranged; the round steel pipes (12) are arranged at intervals.
5. The tram steel longitudinal beam rail structure free of disassembly and modification and easy to maintain of the municipal pipeline according to claim 1, wherein a plurality of reinforcing ribs (7) are arranged between the upper and lower wing plates of the I-steel.
6. The tram steel longitudinal rail structure free of municipal pipeline disassembly and easy to maintain of claim 1, wherein the fastener assembly comprises a fastener iron backing plate (42), an elastic strip (43), a fastener connecting bolt (44), a nut and a gauge block.
7. The tram steel longitudinal beam rail structure free of municipal pipeline disassembly and easy to maintain as claimed in claim 6, wherein the fastener connecting bolt (44) passes through the elastic strip (43), the fastener iron backing plate (42) and the wing plate (111) of the I-steel to connect and fix the steel rail (41) and the I-steel (11) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110618865.4A CN113293657A (en) | 2021-06-03 | 2021-06-03 | Tram steel longeron track structure that municipal administration pipeline exempted from to tear open and changes into easy maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110618865.4A CN113293657A (en) | 2021-06-03 | 2021-06-03 | Tram steel longeron track structure that municipal administration pipeline exempted from to tear open and changes into easy maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113293657A true CN113293657A (en) | 2021-08-24 |
Family
ID=77326850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110618865.4A Pending CN113293657A (en) | 2021-06-03 | 2021-06-03 | Tram steel longeron track structure that municipal administration pipeline exempted from to tear open and changes into easy maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113293657A (en) |
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2021
- 2021-06-03 CN CN202110618865.4A patent/CN113293657A/en active Pending
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