JP3884855B2 - Seam structure in ladder sleeper orbit - Google Patents
Seam structure in ladder sleeper orbit Download PDFInfo
- Publication number
- JP3884855B2 JP3884855B2 JP05028098A JP5028098A JP3884855B2 JP 3884855 B2 JP3884855 B2 JP 3884855B2 JP 05028098 A JP05028098 A JP 05028098A JP 5028098 A JP5028098 A JP 5028098A JP 3884855 B2 JP3884855 B2 JP 3884855B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- rubber
- ladder sleeper
- support
- ladder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Railway Tracks (AREA)
Description
【0001】
【発明の属する技術分野】
この発明は、ラダーマクラギ軌道における継目構造に係わり、更に詳しくは安価で作業性が良く、しかもバラスト道床の沈下を大幅に改善出来るラダーマクラギ軌道における継目構造に関するものである。
【0002】
【従来の技術】
近年、電車等の路線構造として、従来の横マグラギ軌道に比べて耐荷性能及び左右安定性が極めて良いラダーマクラギが提案されている。
このラダーマクラギは、コンクリート製縦梁と鋼管製継材とをコンクリート打込みにより一体化した、所謂はしご状のマクラギであり、レールの長手方向を連続的に支持,拘束する混合剛性構造である。
【0003】
【発明が解決しようとする課題】
ところで、上記のようなラダーマクラギ軌道の継目部の構造としては、コンクリート製縦梁の両端を添接鋼板と高力ボルトとの摩擦接合による機械的な接合により連続化を図り、バラスト道床の沈下対策を行っているが、接合板が高価であり、また取付け作業に多くの労力と時間を要する等の問題があった。
【0004】
また、接合板を使用しない継目部の構造の場合には、継目部のバラスト道床の沈下が、ラダーマクラギ(縦梁)の中央より大きくなり、レールを安定した状態で支持,拘束することが難しくなると言う問題があった。
この発明は、かかる従来の課題に着目して案出されたもので、鋼板継目板に較べて安価で、作業性が良く、しかもバラスト道床の沈下を大幅に改善でき、更に軌道の保守管理も極めて容易に行うことが出来るラダーマクラギ軌道における継目構造を提供することを目的とするものである。
【0005】
【課題を解決するための手段】
この発明は上記目的を達成するため、ラダーマクラギ軌道の継目部におけるの縦梁の両端下部に、板状の剛性体で形成した支持体を配設し、前記支持体は、板状の剛性体と、その上下面に板状のゴム状弾性体とを配設して所定の厚さに一体的に形成したことを要旨とするものである。
【0006】
また支持体は、継目部における二本の縦梁を同時に支持する一本、または二本の縦梁を個別に支持する分割されたものを使用することも可能である。更に前記支持体を、板状の剛性体とその上下面に板状のゴム状弾性体を配設して所定の厚さに一体的に形成する場合、縦梁側とバラストマット側との肉厚を変化させるか、またはゴム状弾性体のゴム硬度を変化させて構成することも可能である。
【0007】
この発明は上記のように構成され、ラダーマクラギ軌道の継目部の縦梁の両端下部に、板状の剛性体で形成した支持体、または板状の剛性体とその上下面に板状のゴム状弾性体を配設して所定の厚さに一体的に形成した支持体を設置することで、従来の鋼板継目板に比べて安価で、作業性が良く、また鋼板継目板を使用しない場合に較べてバラスト道床の沈下を大幅に改善でき、更に軌道の保守管理も極めて容易に行うことが出来るものである。
【0008】
【発明の実施の形態】
以下、添付図面に基づき、この発明の実施形態を説明する。
図1は、この発明を実施したバラストマットG上に設置されるラダーマクラギ軌道の概略斜視図を示し、1a,1bはコンクリート製の縦梁、2は縦梁1a,1bを所定の間隔で連結した鋼管製継材を示し、前記縦梁1a,1b上には、ゴム状弾性体等で形成された帯状の軌道パッド3を介してレール4が敷設され、該レール4の底部両側縁部は、複数の止め金具5を介して縦梁1a,1b上に支持固定されている。なお、Qはゴム状弾性体で形成したマクラギパッドを示している。
【0009】
前記ラダーマクラギ軌道の継目部Xの縦梁1a,1bの両端下部には、図1〜図3に示すように、プレキャストコンクリート,鉄板,繊維強化プラスチック等での剛性体で形成した板状の支持体6(例えば、鉄板製支持体の幅300 mm,長さ1,600mm ,厚さ30mm)が配設してある。
なお、図1〜図3の実施形態では、縦梁1a,1bの継目部Xには、所定の間隙Hを設けてあるが、図4に示すように、縦梁1a,1bの継目部Xにゴム状弾性体から成る隙間部材7を介在させることも可能である。
【0010】
また、前記支持体6aの他の実施形態としては、図4及び図5に示すように、プレキャストコンクリート,鉄板,繊維強化プラスチック等の板状の剛性体8と、その上下面に板状のゴム状弾性体9a,9bを配設して所定の厚さTに一体的に形成することも可能である。
この場合、縦梁1a,1b側とバラストマットG側とのゴム状弾性体9a,9bの肉厚t1 ,t2 を変化させるか、またはゴム状弾性体9a,9bのゴム硬度を変化させて構成することも可能である。
例えば、支持体6aの全体の厚さTを60mmとした場合、ゴム状弾性体9a,9bの肉厚t1 を10mm,t2 を20mmとしたり、またゴム硬度を、80:40にするものである。
【0011】
更に、支持体6,6aの他の実施形態としては、上記実施形態では、支持体6,6aは継目部Xにおける二本の縦梁1a,1bを同時に支持する一本物を使用しているが、図6及び図7に示すように、二本の縦梁1a,1bを個別に支持する分割された支持体10a,10bを使用することも可能である。
この発明は、上記のように構成され、ラダーマクラギ軌道の継目部Xの縦梁1a,1bの両端下部に、板状の剛性体で形成した支持体6、または板状の剛性体8とその上下面に板状のゴム状弾性体9a,9bを配設して所定の厚さに一体的に形成した支持体6aを設置することで、従来の鋼板継目板に較べて安価で、作業性が良く、また鋼板継目板を使用しない場合に較べてバラスト道床の沈下を大幅に改善でき、更に軌道の保守管理も極めて容易に行うことが出来るものである。
【0012】
【発明の効果】
この発明は、上記のようにラダーマクラギ軌道の継目部におけるの縦梁の両端下部に、板状の剛性体で形成した支持体を配設し、前記支持体は、板状の剛性体と、その上下面に板状のゴム状弾性体とを配設して所定の厚さに一体的に形成したので、従来の鋼板継目板に較べて安価で、作業性が良く、また従来の鋼板継目板を使用しない場合に較べてバラスト道床の沈下を大幅に改善でき、更に軌道の保守管理も極めて容易に行うことが出来る効果がある。
【図面の簡単な説明】
【図1】この発明を実施したバラストマットG上に設置されるラダーマクラギ軌道の概略斜視図である。
【図2】この発明の第1実施形態を示すラダーマクラギ軌道の継目部の平面図である。
【図3】図2の正面図である。
【図4】この発明の第2実施形態を示すラダーマクラギ軌道の継目部の断面図である。
【図5】この発明の第2実施形態における支持体の拡大断面図である。
【図6】この発明の第3実施形態を示すラダーマクラギ軌道の継目部の平面図である。
【図7】図6の正面図である。
【符号の説明】
1a,1b 縦梁 2 鋼管製継材
3 軌道パッド 4 レール
5 止め金具 6 支持体
7 隙間部材 8 剛性体
9a,9b ゴム状弾性体 G バラストマット
X ラダーマクラギ軌道の継目部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seam structure in a ladder sleeper track, and more particularly relates to a seam structure in a ladder sleeper track that is inexpensive, has good workability, and can significantly improve the settlement of a ballast roadbed.
[0002]
[Prior art]
In recent years, ladder sleepers have been proposed as a route structure of a train or the like, which has extremely good load bearing performance and left-right stability compared to a conventional horizontal sleeper track.
This ladder sleeper is a so-called ladder sleeper in which a concrete longitudinal beam and a steel pipe joint are integrated by concrete driving, and has a mixed rigid structure that continuously supports and restrains the longitudinal direction of the rail.
[0003]
[Problems to be solved by the invention]
By the way, as the structure of the joint part of the ladder sleeper track as described above, the both ends of the concrete vertical beam are made continuous by mechanical joining by frictional joining of the attached steel plate and high strength bolt, and the ballast road subsidence Although measures have been taken, there are problems such as expensive joining plates and a lot of labor and time for installation work.
[0004]
In addition, in the case of a seam structure that does not use a joint plate, the sinking of the ballast road bed at the seam is larger than the center of the ladder sleeper (vertical beam), making it difficult to support and restrain the rail in a stable state. There was a problem to say.
The present invention has been devised by paying attention to such conventional problems, and is cheaper and easier to work than steel plate joints, and can significantly improve the settlement of the ballast roadbed. It is an object of the present invention to provide a seam structure in a ladder sleeper track that can be performed extremely easily.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a support formed of a plate-shaped rigid body at the lower ends of both ends of the longitudinal beam at the joint portion of the ladder sleeper track, and the support is a plate-shaped rigid body. In addition, the gist of the present invention is that a plate-like rubber-like elastic body is disposed on the upper and lower surfaces of the elastic members and is integrally formed to have a predetermined thickness .
[0006]
In addition, it is possible to use a single support that supports two vertical beams at the joint portion at the same time, or a divided support that supports two vertical beams individually. Further, when the support is formed integrally with a plate-shaped rigid body and plate-like rubber-like elastic bodies on the upper and lower surfaces thereof to have a predetermined thickness, the support is formed between the vertical beam side and the ballast mat side. It is also possible to change the thickness or change the rubber hardness of the rubber-like elastic body .
[0007]
The present invention is configured as described above, and a support formed of a plate-like rigid body at the lower ends of the longitudinal beams of the joint portion of the ladder sleeper track, or a plate-like rigid body and plate-like rubber on the upper and lower surfaces thereof By installing a support that is integrally formed to a predetermined thickness with a cylindrical elastic body installed, it is cheaper and more workable than conventional steel plate joint plates, and when steel plate joint plates are not used Compared to this, the settlement of the ballast road bed can be greatly improved, and track maintenance can be performed very easily.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view of a ladder sleeper track installed on a ballast mat G embodying the present invention, 1a and 1b are concrete longitudinal beams, and 2 is
[0009]
As shown in FIGS. 1 to 3, plate-like supports formed of rigid bodies such as precast concrete, iron plate, fiber reinforced plastic are provided at both lower portions of the
In the embodiment shown in FIGS. 1 to 3, a predetermined gap H is provided in the joint portion X of the
[0010]
Further, as another embodiment of the support 6a, as shown in FIGS. 4 and 5, a plate-like
In this case, the thicknesses t 1 and t 2 of the rubber-like
For example, when the total thickness T of the support 6a is 60 mm, the thickness t 1 of the rubber-like
[0011]
Furthermore, as another embodiment of the support bodies 6 and 6a, in the above-described embodiment, the support bodies 6 and 6a use a single object that simultaneously supports the two
The present invention is configured as described above, and a support body 6 formed of a plate-like rigid body or a plate-like
[0012]
【The invention's effect】
The present invention, as described above, the support formed of a plate-like rigid body is disposed at the lower ends of both ends of the longitudinal beam at the joint portion of the ladder sleeper track, the support is a plate-like rigid body, The plate-like rubber-like elastic bodies are arranged on the upper and lower surfaces and are integrally formed to a predetermined thickness. Therefore , it is cheaper and more workable than the conventional steel plate joint plate, and the conventional steel plate joint. Compared to the case where no plate is used, the settlement of the ballast road bed can be greatly improved, and the track maintenance can be managed very easily.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a ladder sleeper track installed on a ballast mat G embodying the present invention.
FIG. 2 is a plan view of a seam portion of a ladder sleeper track showing a first embodiment of the present invention.
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view of a seam portion of a ladder sleeper track showing a second embodiment of the present invention.
FIG. 5 is an enlarged cross-sectional view of a support in a second embodiment of the present invention.
FIG. 6 is a plan view of a seam portion of a ladder sleeper track showing a third embodiment of the present invention.
7 is a front view of FIG. 6. FIG.
[Explanation of symbols]
DESCRIPTION OF
Claims (3)
前記ラダーマクラギ軌道の継目部におけるの縦梁の両端下部に、板状の剛性体で形成した支持体を配設し、前記支持体は、板状の剛性体と、その上下面に板状のゴム状弾性体とを配設して所定の厚さに一体的に形成したことを特徴とするラダーマクラギ軌道における継目構造。In the seam structure in the ladder sleeper track formed by integrally forming two vertical beams and steel pipe joints to a predetermined length by placing concrete, and laying and fixing rails in parallel on the vertical beams,
A support body formed of a plate-like rigid body is disposed at both ends of the vertical beam at the joint portion of the ladder sleeper track, and the support body is formed of a plate-like rigid body and plate-like rigid bodies on the upper and lower surfaces thereof. A seam structure in a ladder sleeper track , wherein a rubber-like elastic body is disposed and integrally formed to a predetermined thickness .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05028098A JP3884855B2 (en) | 1998-03-03 | 1998-03-03 | Seam structure in ladder sleeper orbit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05028098A JP3884855B2 (en) | 1998-03-03 | 1998-03-03 | Seam structure in ladder sleeper orbit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11247102A JPH11247102A (en) | 1999-09-14 |
JP3884855B2 true JP3884855B2 (en) | 2007-02-21 |
Family
ID=12854530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05028098A Expired - Fee Related JP3884855B2 (en) | 1998-03-03 | 1998-03-03 | Seam structure in ladder sleeper orbit |
Country Status (1)
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JP (1) | JP3884855B2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4549262B2 (en) * | 2005-09-01 | 2010-09-22 | 財団法人鉄道総合技術研究所 | Ladder sleeper with escape guard |
KR200481415Y1 (en) * | 2014-11-14 | 2016-09-28 | 임재걸 | Gravimetry Unit for Streetcar |
CN105887586A (en) * | 2016-04-29 | 2016-08-24 | 中铁第四勘察设计院集团有限公司 | Low implantation line double-wire section terminal spine type bearing rail beam limiting structure in medium and low speed magnetic levitation transportation engineering |
WO2017185916A1 (en) * | 2016-04-29 | 2017-11-02 | 中铁第四勘察设计院集团有限公司 | Inter-segment limiting structure for track-bearing beams on double-track section of low-set mid-to-low speed magnetic levitation transportation project line |
CN105926380A (en) * | 2016-04-29 | 2016-09-07 | 中铁第四勘察设计院集团有限公司 | Limiting structure between terminal spine type rail bearing beam joints of single-line segment for medium-low-speed magnetic levitation traffic engineering low-arranged line |
CN105951535B (en) * | 2016-04-29 | 2018-07-06 | 中铁第四勘察设计院集团有限公司 | Middle low speed magnetic suspension traffic engineering is low to put circuit single line location support rail beam internode position limiting structure |
-
1998
- 1998-03-03 JP JP05028098A patent/JP3884855B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JPH11247102A (en) | 1999-09-14 |
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