JP2853016B2 - Construction method of anti-vibration sleeper track - Google Patents
Construction method of anti-vibration sleeper trackInfo
- Publication number
- JP2853016B2 JP2853016B2 JP7144147A JP14414795A JP2853016B2 JP 2853016 B2 JP2853016 B2 JP 2853016B2 JP 7144147 A JP7144147 A JP 7144147A JP 14414795 A JP14414795 A JP 14414795A JP 2853016 B2 JP2853016 B2 JP 2853016B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeper
- support box
- concrete
- sleeper support
- steel girder
- 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
Links
Landscapes
- Machines For Laying And Maintaining Railways (AREA)
- Bridges Or Land Bridges (AREA)
- Railway Tracks (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、防振まくらぎ軌道の
施工方法に係り、特に道床厚さが確保できない場合の防
振まくらぎ軌道の施工方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing an anti-vibration sleeper track, and more particularly to a method of constructing an anti-vibration sleeper track when the thickness of a track bed cannot be ensured.
【０００２】[0002]
【従来の技術】鉄道軌条用まくらぎは、バラスト道床や
コンクリート道床または鋼桁等で支持される。まくらぎ
がバラスト道床で支持されるときは、バラスト道床自体
に弾性支承の作用があるから特別な弾性支承手段は必要
ないが、まくらぎがコンクリート道床や鋼桁で支持され
るときは、このコンクリート道床や鋼桁には弾性支承作
用がないところから、まくらぎは弾性支承手段を介して
前記のコンクリート道床や鋼桁に支持される。従来、コ
ンクリート道床における鉄道軌条用まくらぎの弾性支持
方法としては特公昭５７−３６３６３号公報に開示のも
のが提案されている。2. Description of the Related Art Railroad sleepers are supported by ballast ballasts, concrete ballasts, steel girders, or the like. When the sleepers are supported by a ballast ballast, special elastic bearings are not necessary because the ballast bed itself has an elastic bearing function.However, when the sleepers are supported by a concrete ballast or steel girder, this concrete Since there is no elastic bearing action on the roadbed or the steel girder, the sleeper is supported on the concrete floor or the steel girder through the elastic bearing means. Conventionally, a method disclosed in Japanese Patent Publication No. 57-36363 has been proposed as a method of elastically supporting a railroad railroad sleeper on a concrete track floor.
【０００３】前記、従来技術の場合は、弾性を有する板
状の側面パッド及び底面パッドが合成樹脂製のまくらぎ
支持箱内に収容されていて、このまくらぎ支持箱内にお
いて、前記側面パッドと底面パッドによりコンクリート
まくらぎの底面と両側面を弾性的に支持しているので、
側面パッドと底面パッドの所定配置の位置決めを簡単に
行なうことができ、かつ、まくらぎ支持箱の各側板によ
りコンクリート道床を各パッドに接しないようにして打
設でき、よって、高精度な軌条のレベル調整を迅速に行
ない、かつ、弾性的なコンクリートまくらぎの支持が容
易に行なえるという利点を有している。[0003] In the case of the prior art described above, plate-shaped side pads and bottom pads having elasticity are accommodated in a sleeper support box made of synthetic resin. Because the bottom and both sides of the concrete sleeper are elastically supported by the bottom pad,
The positioning of the predetermined arrangement of the side pad and the bottom pad can be easily performed, and the concrete track bed can be driven into contact with each pad by each side plate of the sleeper support box. There is an advantage that the level can be adjusted quickly and the elastic concrete sleeper can be easily supported.
【０００４】[0004]
【発明が解決しようとする課題】ところで、前記まくら
ぎ支持箱が設置されるのは前述のとおりコンクリート道
床であって、これ以外の例えば鋼桁にまくらぎ支持箱を
容易，確実に固定する手段は従来存在しないのが実状で
ある。すなわち、従来、まくらぎ支持箱の下部をコンク
リート道床に固定する場合は、当該まくらぎ支持箱をコ
ンクリート道床の打設時に一体的に埋設固定しているの
で、特に問題がない。しかし、まくらぎ支持箱を鋼桁に
埋設固定することは当然不可能であり、結果として、前
述のとおり、まくらぎ支持箱を鋼桁に固定する手段がな
いのが実状である。The sleeper support box is installed on the concrete roadbed as described above, and other means for easily and securely fixing the sleeper support box to, for example, a steel girder. It is the fact that has not existed before. That is, conventionally, when fixing the lower portion of the sleeper support box to the concrete roadbed, there is no particular problem because the sleeper support box is integrally buried and fixed when the concrete roadbed is cast. However, it is naturally impossible to embed and fix the sleeper support box to the steel girder, and as a result, as described above, in reality, there is no means for fixing the sleeper support box to the steel girder.
【０００５】本発明は、前記の課題を解決した防振まく
らぎ軌道の施工方法を提供することを目的とする。[0005] An object of the present invention is to provide a method of constructing an anti-vibration sleeper track which has solved the above-mentioned problems.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
め本発明に係る防振まくらぎ軌道の施工方法は、まくら
ぎ嵌入側と上面が開口しており、底板１と両側板２と外
端板３を有し、前記底板１にボルト挿入孔４を有するま
くらぎ支持箱５を設け、前記まくらぎ支持箱５を鋼桁６
の上フランジ７に載置し、前記ボルト挿入孔４に挿入し
たフックボルト８の先端を前記上フランジ７に係合した
うえ、まくらぎ支持箱５の内側から前記フックボルト８
のねじ部９にナット１０を螺合して、前記まくらぎ支持
箱５を前記鋼桁６に固定し、前記まくらぎ支持箱５に収
納したまくらぎ支持パッド１１と、側面用パッド１２と
によりコンクリートまくらぎ１３を支承することを特徴
とする。前記ボルト挿入孔４は、その長軸が前記コンク
リートまくらぎ１３の長手方向と平行になるように形成
された長円孔であってもよい。According to the present invention, there is provided a method of constructing an anti-vibration sleeper track according to the present invention, wherein a sleeper insertion side and an upper surface are open, and a bottom plate 1, both side plates 2 and an outer surface are provided. A sleeper support box 5 having an end plate 3 and a bolt insertion hole 4 is provided in the bottom plate 1, and the sleeper support box 5 is
The hook bolt 8 inserted into the bolt insertion hole 4 is placed on the upper flange 7, the tip of the hook bolt 8 is engaged with the upper flange 7, and the hook bolt 8 is inserted from inside the sleeper support box 5.
A nut 10 is screwed into the screw portion 9 of the above, the sleeper support box 5 is fixed to the steel girder 6, and the sleeper support pad 11 housed in the sleeper support box 5 and the side pad 12 are used. It is characterized by supporting a concrete sleeper 13. The bolt insertion hole 4 may be an oblong hole formed such that its major axis is parallel to the longitudinal direction of the concrete sleeper 13.
【０００７】[0007]
【作用】本発明によると、まくらぎ支持箱５を鋼桁６の
上フランジ７の上面に載置したうえ、ボルト挿入孔４に
挿入したフックボルト８の先端部を鋼桁６の上フランジ
７に係合させ、フックボルト８のねじ部９にナット１０
を螺合して締付けることで、前記まくらぎ支持箱５を鋼
桁６に堅固に固定できる。According to the present invention, the sleeper support box 5 is placed on the upper surface of the upper flange 7 of the steel girder 6 and the tip of the hook bolt 8 inserted into the bolt insertion hole 4 is connected to the upper flange 7 of the steel girder 6. Into the threaded portion 9 of the hook bolt 8 and the nut 10
By screwing and tightening, the sleeper support box 5 can be firmly fixed to the steel girder 6.
【０００８】[0008]
【実施例】以下本発明の実施例を図１〜図６を参照して
説明する。まず、図１において、河川，溝等に設けられ
る橋台１４の間に弾性支承２８を介して鋼桁６が架設さ
れている。鋼桁６はＨ形鋼を用いて構成されており、上
下フランジ７，１７の間がウエブ１５で連結されてい
て、上フランジ７の上面に、まくらぎ支持箱５（詳細は
後述する）を介して複数のコンクリートまくらぎ１３が
一定間隔で支承されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, in FIG. 1, a steel girder 6 is installed via an elastic bearing 28 between abutments 14 provided in a river, a ditch, or the like. The steel girder 6 is made of H-shaped steel, and the upper and lower flanges 7 and 17 are connected by a web 15. On the upper surface of the upper flange 7, a sleeper support box 5 (details will be described later) is provided. A plurality of concrete sleepers 13 are supported at regular intervals.
【０００９】また、橋台１４の外側にはバラストを敷詰
めてなるバラスト道床１６が設けられ、このバラスト道
床１６の上に複数のコンクリートまくらぎ１３が一定間
隔で支承されており、前記鋼桁６とバラスト道床１６と
で支持されたコンクリートまくらぎ１３によってレール
１８が支持されている。On the outside of the abutment 14, there is provided a ballast ballast 16 laid with ballasts. A plurality of concrete sleepers 13 are supported on the ballast ballast 16 at regular intervals. The rail 18 is supported by the concrete sleeper 13 supported by the ballast and the ballast roadbed 16.
【００１０】前記鋼桁６の上フランジ７の上面に一定の
間隔をおいて複数のまくらぎ支持箱５が載置され、この
まくらぎ支持箱５はフックボルト８を介して前記上フラ
ンジ７に固定されている。A plurality of sleeper support boxes 5 are mounted on the upper surface of the upper flange 7 of the steel girder 6 at regular intervals, and this sleeper support box 5 is attached to the upper flange 7 via hook bolts 8. Fixed.
【００１１】まくらぎ支持箱５は、図２〜図４に示され
るように構成されている。各図において、まくらぎ支持
箱５は、底板１と、底板１の両側縁から起立する両側板
２と、底板１の外端縁から起立し、前記両側板２に連続
する外端板３とから構成され、さらにコンクリートまく
らぎ１３を嵌入するまくらぎ嵌入開口部１９と、上面開
口部２０とを有し、さらに前記底板１において、その長
手方向中心線上の位置には、所定の間隔をあけて２つの
ボルト挿入孔４が開設されている。このボルト挿入孔４
は、図のようにその長軸がまくらぎ支持箱５で支持され
るコンクリートまくらぎ１３の軸線と平行となるように
開削された長円孔とするのがよい。The sleeper support box 5 is configured as shown in FIGS. In each of the figures, the sleeper support box 5 includes a bottom plate 1, two side plates 2 rising from both side edges of the bottom plate 1, and an outer end plate 3 rising from the outer edge of the bottom plate 1 and continuing from the both side plates 2. And a sleeper fitting opening 19 into which the concrete sleeper 13 is fitted, and an upper surface opening 20. In the bottom plate 1, a predetermined interval is provided at a position on the center line in the longitudinal direction. Two bolt insertion holes 4 are provided. This bolt insertion hole 4
Is preferably an oblong hole cut so that its long axis is parallel to the axis of the concrete sleeper 13 supported by the sleeper support box 5 as shown in the figure.
【００１２】前記まくらぎ支持箱５の底には、前記ボル
ト挿入孔４とその周辺の部位を除いてまくらぎ支持パッ
ド１１が仕切壁２１を介してずれ動かないように敷詰め
られる。また、図２，図３のように２つのまくらぎ支持
箱５は所定の間隔離して、かつまくらぎ嵌入開口部１９
が向い合うよう対向配置される。そして、各まくらぎ支
持箱５にまくらぎ嵌入開口部１９と上面開口部２０を介
して上方からコンクリートまくらぎ１３が嵌入され、こ
のコンクリートまくらぎ１３の両端部下面が、前記まく
らぎ支持パッド１１により支持される。At the bottom of the sleeper support box 5, a sleeper support pad 11 is laid so as not to be displaced via a partition wall 21 except for the bolt insertion hole 4 and a portion therearound. Also, as shown in FIGS. 2 and 3, the two sleeper support boxes 5 are separated from each other by a predetermined distance, and the sleeper fitting opening 19 is provided.
Are arranged to face each other. A concrete sleeper 13 is fitted into each sleeper support box 5 from above through a sleeper fitting opening 19 and an upper surface opening 20, and the lower surfaces of both ends of the concrete sleeper 13 are connected to the sleeper support pad 11. Supported by
【００１３】前記まくらぎ支持パッド１１によるコンク
リートまくらぎ１３の支持面を嵩上げ調整する場合は、
図２，図４に示されるように、まくらぎ支持箱５内にお
いて、まくらぎ支持パッド１１の下面に所定の厚みを有
する１枚又は複数枚の高低調整パッキング２２を挿入す
ることにより調整できる。また、まくらぎ支持箱５内に
おいて、２３はスポンジ、２５は前記側面用パッド１２
を介してコンクリートまくらぎ１３の端面の位置規制を
するレールの通り修正用側面調整パッキング、２６は空
間である。When raising and adjusting the support surface of the concrete sleeper 13 by the sleeper support pad 11,
As shown in FIGS. 2 and 4, the adjustment can be performed by inserting one or more height adjustment packings 22 having a predetermined thickness into the lower surface of the sleeper support pad 11 in the sleeper support box 5. Further, in the sleeper support box 5, 23 is a sponge, and 25 is the side pad 12
The side adjustment packing for correction, 26 is a space according to the rail that regulates the position of the end face of the concrete sleeper 13 through the space.
【００１４】前記まくらぎ支持箱５は図２〜図４の状態
で使用される。すなわち、まくらぎ支持箱５をコンクリ
ートまくらぎ１３の配置間隔に合わせた間隔で鋼桁６の
上フランジ７上に設置する。次に、まくらぎ支持箱５の
底板１のボルト挿入孔４にフックボルト８の軸部を挿入
し、かつ、フックボルト８の先端を鋼桁６の上フランジ
７に係合させたうえ、まくらぎ支持箱５の内側におい
て、前記フックボルト８のねじ部９にナット１０を螺合
することにより、まくらぎ支持箱５を鋼桁６にしっかり
と固定することができる。The sleeper support box 5 is used in the state shown in FIGS. That is, the sleeper support box 5 is installed on the upper flange 7 of the steel girder 6 at intervals corresponding to the arrangement interval of the concrete sleepers 13. Next, the shaft of the hook bolt 8 is inserted into the bolt insertion hole 4 of the bottom plate 1 of the sleeper support box 5, and the tip of the hook bolt 8 is engaged with the upper flange 7 of the steel girder 6. By screwing a nut 10 into the threaded portion 9 of the hook bolt 8 inside the nail support box 5, the sleeper support box 5 can be firmly fixed to the steel beam 6.
【００１５】このとき、ボルト挿入孔４が図のように長
孔であると、この長孔を介してまくらぎ支持箱５を、レ
ールの通り修正方向に調整しながら鋼桁６に固定でき
る。At this time, if the bolt insertion hole 4 is a long hole as shown in the figure, the sleeper support box 5 can be fixed to the steel girder 6 through this long hole while adjusting in the correction direction along the rail.
【００１６】その後、まくらぎ支持パッド１１，高低調
整パッキング２２，側面用パッド１２，側面調整パッキ
ング２５を介して、まくらぎ支持箱５内にコンクリート
まくらぎ１３を設置する。レール１８はコンクリートま
くらぎ１３に所定間隔で配置されるレール締結装置２７
により固定されている。Thereafter, the concrete sleeper 13 is set in the sleeper support box 5 via the sleeper support pad 11, the height adjustment packing 22, the side pad 12, and the side adjustment packing 25. The rail 18 is a rail fastening device 27 arranged at a predetermined interval on the concrete sleeper 13.
It is fixed by.
【００１７】また、まくらぎ支持箱５を鋼桁６の上フラ
ンジ７に固定した後、まくらぎ支持箱５内においてレー
ルの通りを修正する場合は、コンクリートまくらぎ１３
の端面を位置規制する側面調整パッキング２５の厚みを
適正なものに取替えて、前記コンクリートまくらぎ１３
の位置を修正することにより、レール１８の通りも自ら
修正される。After the sleeper support box 5 is fixed to the upper flange 7 of the steel girder 6 and the rails are corrected in the sleeper support box 5, the concrete sleeper 13 is used.
The thickness of the side adjustment packing 25 that regulates the position of the end face of the concrete sleeper 13 is replaced with an appropriate one.
Is corrected, the street of the rail 18 is also corrected by itself.
【００１８】[0018]
【発明の効果】以上説明したように、本発明によると、
防振まくらぎ軌道の施工に際し、コンクリートまくらぎ
１３を弾性的に支承する防振用まくらぎ支持箱５の底板
１にボルト挿入孔４を設け、このボルト挿入孔４に軸部
を挿入したフックボルト８の先端を鋼桁６の上フランジ
７に係合すると共に、ねし部９にナット１０を螺合する
ことで、前記まくらぎ支持箱５を前記鋼桁６に確実に、
かつ堅固に固定することができ、よって従来実用化がで
きなかったまくらぎ支持箱５の鋼桁６への設置が可能と
なり、鋼桁配置区間における前記防振まくらぎ軌道の施
工を円滑に行なうことができる。As described above, according to the present invention,
When installing the anti-vibration sleeper track, a bolt insertion hole 4 is provided in the bottom plate 1 of the anti-vibration sleeper support box 5 for elastically supporting the concrete sleeper 13, and a hook is inserted into the bolt insertion hole 4. By engaging the tip of the bolt 8 with the upper flange 7 of the steel girder 6 and screwing the nut 10 into the threaded part 9, the sleeper support box 5 is securely connected to the steel girder 6.
And can be firmly fixed, so that the sleeper support box 5, which has not been practically used in the past, can be installed on the steel girder 6, and the construction of the anti-vibration sleeper track in the steel girder arrangement section can be performed smoothly. be able to.
【図１】本発明の防振まくらぎ軌道の施工方法の実施例
を示す断面説明図である。FIG. 1 is an explanatory sectional view showing an embodiment of a method for constructing a vibration isolating sleeper track according to the present invention.
【図２】図１におけるまくらぎ支持箱の鋼桁への固定構
造を示す断面図である。FIG. 2 is a sectional view showing a structure for fixing the sleeper support box to a steel girder in FIG.
【図３】図２の一部省略平面図である。FIG. 3 is a partially omitted plan view of FIG. 2;
【図４】図２の一部拡大図である。FIG. 4 is a partially enlarged view of FIG. 2;
【図５】図２のＡ部の拡大断面図である。FIG. 5 is an enlarged sectional view of a portion A in FIG. 2;
【図６】図５の平面図である。FIG. 6 is a plan view of FIG. 5;
１ 底板 ２ 両側板 ３ 外端板 ４ ボルト挿入孔 ５ まくらぎ支持箱 ６ 鋼桁 ７ 上フランジ ８ フックボルト ９ ねじ部 １０ ナット １１ まくらぎ支持パッド １２ 側面用パッド １３ コンクリートまくらぎ １４ 橋台 １５ ウエブ １６ バラスト道床 １７ 下フランジ １８ レール １９ まくらぎ嵌入開口部 ２０ 上面開口部 ２１ 仕切壁 ２２ 高低調整パッキング ２３ スポンジ ２５ 側面調整パッキング ２６ 空間 ２７ レール締結装置 ２８ 弾性支承 DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Side plates 3 Outer end plate 4 Bolt insertion hole 5 Sleeper support box 6 Steel girder 7 Upper flange 8 Hook bolt 9 Screw part 10 Nut 11 Sleeper support pad 12 Side pad 13 Concrete sleeper 14 Abutment 15 Web 16 Ballast ballast 17 Lower flange 18 Rail 19 Sleeper fitting opening 20 Top opening 21 Partition wall 22 Height adjustment packing 23 Sponge 25 Side adjustment packing 26 Space 27 Rail fastening device 28 Elastic bearing
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E01B 1/00 E01B 3/00 E01B 3/46 E01B 19/00 E01B 29/06 E01B 37/00 E01D 19/12──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int.Cl. 6 , DB name) E01B 1/00 E01B 3/00 E01B 3/46 E01B 19/00 E01B 29/06 E01B 37/00 E01D 19 / 12
Claims (2)
底板１と両側板２と外端板３を有し、前記底板１にボル
ト挿入孔４を有するまくらぎ支持箱５を設け、前記まく
らぎ支持箱５を鋼桁６の上フランジ７に載置し、前記ボ
ルト挿入孔４に挿入したフックボルト８の先端を前記上
フランジ７に係合したうえ、まくらぎ支持箱５の内側か
ら前記フックボルト８のねじ部９にナット１０を螺合し
て前記まくらぎ支持箱５を前記鋼桁６に固定し、前記ま
くらぎ支持箱５に収納したまくらぎ支持パッド１１と、
側面用パッド１２とによりコンクリートまくらぎ１３を
支承することを特徴とする防振まくらぎ軌道の施工方
法。1. A sleeper fitting side and an upper surface are open,
A sleeper support box 5 having a bottom plate 1, both side plates 2 and an outer end plate 3, and a bolt insertion hole 4 is provided in the bottom plate 1, and the sleeper support box 5 is mounted on an upper flange 7 of a steel girder 6. Then, the tip of the hook bolt 8 inserted into the bolt insertion hole 4 is engaged with the upper flange 7, and a nut 10 is screwed into the thread portion 9 of the hook bolt 8 from inside the sleeper support box 5. A sleeper support pad 11 for fixing the sleeper support box 5 to the steel girder 6 and housed in the sleeper support box 5;
A method for constructing an anti-vibration sleeper track, wherein a concrete sleeper (13) is supported by a side pad (12).
コンクリートまくらぎ１３の長手方向と平行になるよう
に形成された長円孔である請求項１に記載の防振まくら
ぎ軌道の施工方法。2. The anti-vibration sleeper track according to claim 1, wherein the bolt insertion hole 4 is an oblong hole formed such that a major axis thereof is parallel to a longitudinal direction of the concrete sleeper 13. Construction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144147A JP2853016B2 (en) | 1995-05-19 | 1995-05-19 | Construction method of anti-vibration sleeper track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7144147A JP2853016B2 (en) | 1995-05-19 | 1995-05-19 | Construction method of anti-vibration sleeper track |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08311802A JPH08311802A (en) | 1996-11-26 |
| JP2853016B2 true JP2853016B2 (en) | 1999-02-03 |
Family
ID=15355315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7144147A Expired - Fee Related JP2853016B2 (en) | 1995-05-19 | 1995-05-19 | Construction method of anti-vibration sleeper track |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2853016B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010076146A (en) * | 2000-01-21 | 2001-08-11 | 최종민 | Vibration and sound absorption system of railroad track |
| KR20040037430A (en) * | 2002-10-28 | 2004-05-07 | 현대자동차주식회사 | Rail structure of moving cart |
| CN102011354B (en) * | 2010-11-19 | 2012-01-11 | 中铁十七局集团有限公司铺架分公司 | Arrival-departure line track sleeper assembling platform for broad-sleeper |
| CN102425105B (en) * | 2011-12-09 | 2013-09-25 | 清华大学 | Construction method of longitudinal non-shearing resistance screw-type pullout-resistance connecting piece |
| CN103643600B (en) * | 2013-12-31 | 2015-08-12 | 洛阳双瑞橡塑科技有限公司 | A kind of adjustable pretightning force double-layer vibration damping fastener system |
| KR101982567B1 (en) * | 2018-12-04 | 2019-05-27 | 충남대학교산학협력단 | Non-ballast track structure for allowing longitudinal direction slip of steel railway bridge |
| KR102138365B1 (en) * | 2019-04-04 | 2020-07-29 | 충남대학교산학협력단 | Non-ballast track structure for allowing longitudinal direction slip of steel railway bridge |
| JP2022086815A (en) * | 2020-11-30 | 2022-06-09 | 公益財団法人鉄道総合技術研究所 | Ballast track structure and method for manufacturing ballast track structure |
-
1995
- 1995-05-19 JP JP7144147A patent/JP2853016B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08311802A (en) | 1996-11-26 |
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