JPH09105101A - Fiber reinforced plastic sleeper - Google Patents
Fiber reinforced plastic sleeperInfo
- Publication number
- JPH09105101A JPH09105101A JP35473295A JP35473295A JPH09105101A JP H09105101 A JPH09105101 A JP H09105101A JP 35473295 A JP35473295 A JP 35473295A JP 35473295 A JP35473295 A JP 35473295A JP H09105101 A JPH09105101 A JP H09105101A
- Authority
- JP
- Japan
- Prior art keywords
- density
- sleeper
- long fiber
- strength
- specified
- 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.)
- Pending
Links
- 241001669679 Eleotris Species 0.000 title claims abstract description 29
- 229920002430 Fibre-reinforced plastic Polymers 0.000 title 1
- 239000011151 fibre-reinforced plastic Substances 0.000 title 1
- 239000000835 fiber Substances 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 239000006260 foam Substances 0.000 claims abstract description 12
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 230000002411 adverse Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】 ＜産業上の利用分野＞本発明は繊維補強樹脂製枕木の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an improvement in sleepers made of fiber reinforced resin.
＜従来の技術＞軌道において、枕木はレールの保持に不
可欠な部材である。この枕木に関し、本出願人は、長手
方向に向けて埋設された長繊維で補強された熱硬化性発
泡体の柱状体からなり、その密度が０．６〜１．０ｇ／
ｃｍ３で、補強長繊維の含有量が４０〜６０重量％であ
る繊維補強樹脂製枕木を既に提案した（実公昭６１−２
３０４２号公報）。この繊維補強樹脂枕木は、コンクリ
ート製枕木に較べ、軽量であるから、枕木敷設作業や
取替え作業が容易であり、また、橋梁の荷重負担を減少
できる、ポイント切替部等での現場合せの切断が容易
である、緩衝性に優れ、列車振動を吸収でき、衝撃力
による割損を低減できる等の利点がある。また、木材製
の枕木に較べ、腐食が生じない、機械的強度が優れ
ている等の利点がある。例えば、熱硬化性樹脂発泡体を
与える樹脂に硬質ウレタン樹脂を使用し、補強長繊維と
してガラスロービングを５０重量％使用した密度０．７
４ｇ／ｃｍ３の繊維補強樹脂製枕木とブナ材製枕木とを
比較すると、曲げ強度については前者が１２００ｋｇ／
ｃｍ２であるのに対し後者は６３０ｋｇ／ｃｍ２、軸方
向圧縮強度については前者が６５０ｋｇ／ｃｍ２である
のに対し後者は４００ｋｇ／ｃｍ２、剪断強度について
は前者が１００ｋｇ／ｃｍ２であるのに対し後者は８０
ｋｇ／ｃｍ２である。<Prior Art> On the track, the sleepers are indispensable members for holding the rails. With regard to this sleeper, the applicant of the present invention comprises a columnar body of thermosetting foam reinforced by long fibers embedded in the longitudinal direction, and has a density of 0.6 to 1.0 g /
A fiber reinforced resin sleeper having a content of reinforced long fibers of 40 to 60% by cm 3 has already been proposed (Jitsuko Sho 61-2).
3042 publication). Since this fiber-reinforced resin sleeper is lighter than concrete sleepers, it is easy to lay down and replace the sleepers, and the load on the bridge can be reduced. It has the advantages of being easy, excellent in cushioning properties, capable of absorbing train vibration, and capable of reducing breakage due to impact force. In addition, compared to wood sleepers, it has advantages such as no corrosion and excellent mechanical strength. For example, a hard urethane resin is used as a resin that gives a thermosetting resin foam, and a glass roving is used as reinforcing long fibers in an amount of 50% by weight to obtain a density of 0.7.
Comparing 4 g / cm 3 fiber reinforced resin sleepers and beech wood sleepers, the former shows 1200 kg /
cm and is for the latter to 2 630 kg / cm 2, for axial compression strength former is 100 kg / cm 2 for the latter 400 kg / cm 2, the shear strength relative to the former is 650 kg / cm 2 Whereas the latter is 80
It is kg / cm 2 .
＜解決しようとする課題＞ところで、近来、列車の高速
化は著しく、かかる高速化のもとでは、レールに作用す
る横荷重が増大し、レールをタイプレートにより枕木に
固定する犬釘、ボルトと枕木との接触面に発生する圧縮
力が増加し、犬釘、ボルトの支持力または枕木の圧縮強
度を増大することが必要である。また、橋桁上に枕木を
掛け渡す橋枕木においては、両端が橋桁でのみ支持され
る単純支持であり、枕木中間部並びに枕木両端部が道床
によっても支承される路盤軌条とでは、列車荷重に基づ
き枕木に作用する曲げモーメント分布、剪断応力分布の
様相を著しく異にし、特に、剪断応力分布については、
レール直下の部分に応力が集中する過酷な分布である。
而して、列車の高速化に対処するには枕木の圧縮強度の
増強が必要であり、橋桁軌道に対処するには枕木の剪断
強度の増強が必要である。而るに、上記繊維補強樹脂製
枕木において、列車の高速化、または橋桁軌道に適合す
るものは、高密度品質のものであるが、高密度化品質に
なるほど、軽量性、剪断容易性等が損なわれ、コンクリ
ート製枕木に対する有利性が減少する。本発明の目的
は、コンクリート製枕木に対する有利性を充分に保有し
て、列車の高速化、橋桁軌道に適合し得る繊維強化樹脂
製枕木を提供することにある。<Problems to be solved> By the way, the speed of trains has been remarkably increasing in recent years, and under these speed increases, the lateral load acting on the rails increases, and dog nails, bolts and sleepers that fix the rails to the sleepers by tie plates It is necessary to increase the compressive force generated on the contact surface with and to increase the supporting force of dog nails, bolts or the compressive strength of sleepers. In the case of a bridge sleeper that spans sleepers on the bridge girder, both ends are simply supported by the bridge girder. Bending moment distribution and shear stress distribution acting on sleepers are remarkably different. Especially, regarding shear stress distribution,
It is a severe distribution in which stress concentrates on the area directly under the rail.
Therefore, it is necessary to increase the compressive strength of the sleepers to cope with the speeding up of the train, and to increase the shear strength of the sleepers to cope with the bridge girder tracks. Therefore, in the above-mentioned fiber reinforced resin sleepers, those that are compatible with high-speed trains or bridge girders are of high-density quality, but the higher the quality of densification, the lighter the weight, the easier the shearing, etc. Damaged and reduced advantage over concrete sleepers. An object of the present invention is to provide a fiber reinforced resin sleeper which has a sufficient advantage over a concrete sleeper and can be adapted to a high speed train and a bridge girder track.
＜課題を解決するための手段＞本発明に係る繊維強化樹
脂製枕木は、長繊維で補強された熱硬化性樹脂発泡体か
らなる枕木において、密度が０．５〜０．６５ｇ／ｃｍ
３で補強長繊維量が４０〜６０重量％の組成で枕木主体
を構成し、密度が０．６５〜１．０ｇ／ｃｍ３で補強長
繊維量が４０〜６０重量％の高密度部材をレール締結部
の上面及び下面に組込んだことを特徴とする構成であ
る。本発明において、枕木主体の密度を０．５〜０．６
５ｇ／ｃｍ３、補強長繊維量を４０〜６０重量％に限定
した理由は、密度が０．５ｇ／ｃｍ３より小であった
り、補強長繊維量が４０重量％よりも少なかったりする
と、枕木主体に所定の曲げ強度（８００ｋｇｆ／ｃｍ２
以上）を付与し難く、補強長繊維量が６０重量％を超え
ると、樹脂量が少なくなることもあって長繊維に樹脂を
均一に含浸させ難く、密度が０．６５ｇ／ｃｍ３を超え
ると、剪断加工性が悪くなり、また、軽量化に不利であ
るからである。レール締結部の高密度部材の密度を０．
６５〜１．０ｇ／ｃｍ３、補強長繊維量を４０〜６０重
量％に限定した理由は、密度が０．６５ｇ／ｃｍ３未
満、補強長繊維量が４０重量％未満では、所定の剪断強
度（７０ｋｇｆ／ｃｍ２以上）、縦圧縮強度（４００ｋ
ｇｆ／ｃｍ２以上）を付与し難く、密度が１．０ｇ／ｃ
ｍ３を超えると釘打込み時に割れ易くなり、補強長繊維
量が６０重量％を超えると前記した通り樹脂の均一含浸
が困難になるからである。上記長繊維としては、無機
質、有機質のいずれの長繊維を用いてもよいが、強度及
び経済性の点からガラス繊維が最も好ましい。また、熱
硬化性樹脂発泡体に与える樹脂の種類としては、熱硬化
性にして硬質の樹脂発泡体を与えるものであれば特に制
限されないが、通常、発泡性が付与された硬質ウレタン
樹脂や硬質ポリエステル樹脂が好適に用いられる。<Means for Solving the Problem> The fiber reinforced resin sleeper according to the present invention is a sleeper made of a thermosetting resin foam reinforced with long fibers and has a density of 0.5 to 0.65 g / cm.
3 In the reinforcing filaments amount constitutes the sleepers mainly in the composition of 40 to 60 wt%, a dense member for reinforcing filaments amount density 0.65~1.0g / cm 3 is 40 to 60 wt% Rail It is characterized by being incorporated in the upper surface and the lower surface of the fastening portion. In the present invention, the density of the sleepers is 0.5 to 0.6.
The reason for limiting the amount of reinforcing long fibers to 5 g / cm 3 and 40 to 60% by weight is that when the density is less than 0.5 g / cm 3 or the amount of reinforcing long fibers is less than 40% by weight, sleepers are used. Predetermined bending strength (800 kgf / cm 2
When the amount of the reinforcing long fibers exceeds 60% by weight, it is difficult to uniformly impregnate the long fibers with the resin, and when the density exceeds 0.65 g / cm 3. This is because the shearing workability is deteriorated and it is disadvantageous in weight reduction. Reduce the density of the high-density member at the rail fastening part to 0.
The reason for limiting the reinforcing long fiber amount to 65 to 1.0 g / cm 3 and 40 to 60% by weight is that when the density is less than 0.65 g / cm 3 and the reinforcing long fiber amount is less than 40% by weight, a predetermined shear strength is obtained. (70 kgf / cm 2 or more), longitudinal compressive strength (400 k
gf / cm 2 or more), and the density is 1.0 g / c
This is because if it exceeds m 3 , cracking tends to occur during nailing, and if the amount of the reinforcing long fibers exceeds 60% by weight, uniform impregnation of the resin becomes difficult as described above. As the long fibers, either inorganic or organic long fibers may be used, but glass fibers are most preferable from the viewpoint of strength and economy. The type of resin to be given to the thermosetting resin foam is not particularly limited as long as it is thermosetting to give a hard resin foam, but usually, a urethane foam resin or a hard urethane resin to which foamability is given. Polyester resin is preferably used.
＜実施例の説明＞以下、本発明の実施例を図面を参照し
て説明する。第１図Ａは本発明の一実施例を示す斜視
図、第１図Ｂは第１図Ａにおけるｂ−ｂ断面図である。
第１図Ａ並びに第１図Ｂにおいて、１は密度が０．５〜
０．６５ｇ／ｃｍ３で補強長繊維量が４０〜６０重量％
の長繊維補強熱硬化性樹脂発泡体からなる枕木主体であ
り、長手方向に向けて配列された長繊維が熱硬化性樹脂
発泡体内に分散されて埋設されている。２は主体１のレ
ール締結部に組込んだ長繊維補強熱硬化性樹脂発泡体の
高密度部材であり、密度を０．６５〜１．０ｇ／ｃ
ｍ２、補強長繊維量を４０〜６０重量％としてある。高
密度部材における長繊維の配列・分散の構成は枕木主体
１と同じである。上記枕木主体１と高密度部材２とは接
着により一体化してある。また、高密度部材４２の長さ
は後述のタイプレートよりもやや長くしてある。第２図
は上記枕木の使用態様を示し、高密度部材２上にタイプ
レート３を敷設し、このタイプレート３の締結穴から犬
釘４を打込んで犬釘４の頭部でレール５を締結してあ
る。第２図において、レール５に横圧が作用すると、犬
釘４と枕木との接触面に圧縮応力が発生するが、密度
０．６５〜１．０ｇ／ｃｍ３、補強長繊維量が４０〜６
０重量％の高密度部材２が大なる圧縮強度（４００ｋｇ
ｆ／ｃｍ３以上）を有するから、大なる横圧に耐え得、
また高密度部材２のために犬釘４の引抜強度を大にでき
るから、大なる横圧に対してもレール５を安定に固定で
きる。更に、橋桁軌道に使用する場合、レール５直下の
枕木部分に輪重に基づく剪断応力が集中しても、前記密
度、補強長繊維量ゆえに大なる剪断強度を有する高密度
部材２が存在するから、枕木を安定に保持し得る。一
方、枕木主体１には曲げモーメントの作用があるが、密
度０．５ｇ／ｃｍ３以上、補強長繊維量を４０重量％以
上として、規制の曲げ強度（８００ｋｇｆ／ｃｍ２以
上）を付与してあるから、強度上問題はない。従って、
枕木長さの大部分を占める枕木主体１を０．５〜０．６
５ｇ／ｃｍ３といった低密度にしたにもかかわらず、大
なる横圧、過酷な剪断力に耐えることができ、列車の高
速化、橋桁軌道に好適な軽量枕木を提供できる。上記枕
木の製造には、切削加工によって枕木主体に溝を加工
し、この溝に高密度部材を嵌込んで接着剤によって接着
する方法、第３図に示すように、枕木主体１を三層１
１，１２，１３の積層構造にし、上層並びに下層をそれ
ぞれ中間材１ａと両端部１ｂ，１ｂとで構成し、中間部
材１ａと各端部材１ｂとの間に高密度部材２を配し、層
間並びに部材間を接着剤によって接着する方法を用いる
ことができ、枕木主体の密度を０．６５ｇ／ｃｍ３以下
としてあるから、該枕木主体の切断・切断加工を容易に
行い得、何れの方法によっても、枕木を容易に製造でき
る。第１図Ａ、第１図Ｂ並びに第２図において、高密度
部材２の厚みは、枕木厚みの０．３５以上とすることが
好ましい。<Description of Embodiments> Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A is a perspective view showing an embodiment of the present invention, and FIG. 1B is a sectional view taken along line bb in FIG. 1A.
1A and 1B, 1 has a density of 0.5 to
Reinforcement long fiber amount is 40 to 60% by weight at 0.65 g / cm 3.
The main body is a sleeper made of the long fiber reinforced thermosetting resin foam, and the long fibers arranged in the longitudinal direction are dispersed and embedded in the thermosetting resin foam. 2 is a high-density member of long-fiber-reinforced thermosetting resin foam incorporated in the rail fastening portion of the main body 1, and has a density of 0.65 to 1.0 g / c.
m 2 , and the amount of reinforcing long fibers is 40 to 60% by weight. The arrangement and dispersion of long fibers in the high-density member is the same as that of the sleeper main body 1. The sleeper main body 1 and the high-density member 2 are integrated by adhesion. The length of the high-density member 42 is slightly longer than the tie plate described later. FIG. 2 shows a mode of use of the above sleepers. A tie plate 3 is laid on the high density member 2, an dog nail 4 is driven through a fastening hole of the tie plate 3, and a rail 5 is fastened at the head of the dog nail 4. There is. In FIG. 2, when lateral pressure acts on the rail 5, a compressive stress is generated on the contact surface between the dog nail 4 and the sleeper, but the density is 0.65 to 1.0 g / cm 3 , and the reinforcing long fiber amount is 40 to 6
0% by weight of the high-density member 2 has a large compressive strength (400 kg
f / cm 3 or more), it can withstand a large lateral pressure,
Further, because the high-density member 2 can increase the pull-out strength of the dog nail 4, the rail 5 can be stably fixed even against a large lateral pressure. Further, when it is used for a bridge girder track, even if the shear stress due to the wheel load is concentrated on the sleepers directly under the rail 5, the high density member 2 having a large shear strength exists due to the density and the amount of the reinforcing long fibers. , Can hold the sleepers stably. On the other hand, although the sleeper main body 1 has a bending moment, it has a regulated bending strength (800 kgf / cm 2 or more) with a density of 0.5 g / cm 3 or more and a reinforcing long fiber amount of 40% by weight or more. Therefore, there is no problem in strength. Therefore,
Sleeper main body 1 occupying most of the sleeper length is 0.5 to 0.6
Despite the low density of 5 g / cm 3, it can withstand a large lateral pressure and severe shearing force, and can provide a lightweight sleeper suitable for high-speed trains and bridge girder tracks. In the manufacture of the above-mentioned sleepers, a method in which a groove is machined mainly in the sleeper and a high-density member is fitted into the groove and bonded by an adhesive, as shown in FIG.
1, 12 and 13 are laminated structure, the upper layer and the lower layer are respectively composed of the intermediate material 1a and both end portions 1b and 1b, and the high density member 2 is arranged between the intermediate member 1a and each end member 1b, In addition, a method of adhering the members with an adhesive can be used, and since the density of the sleeper main body is set to 0.65 g / cm 3 or less, the sleeper main body can be easily cut and cut. Also, sleepers can be easily manufactured. In FIG. 1A, FIG. 1B and FIG. 2, it is preferable that the thickness of the high density member 2 be 0.35 or more of the sleeper thickness.
＜発明の効果＞本発明に係る繊維補強樹脂製枕木は、上
述した通りの構成であり、全体としての密度が小である
にもかかわらず、大なる横圧、過酷な剪断応力分布に耐
え得、しかも所定の曲げ強度を有し、割れの発生なく犬
釘等を打ち込むことができ、犬釘がタイプレート側の犬
釘先端側の２カ所で高密度部材に打ち込まれているの
で、犬釘の耐引抜強度を向上することができる。従っ
て、列車の高速化、橋桁軌道に適合せる敷設、取替工事
の容易な耐腐食性枕木として提供できる。<Effect of the Invention> The fiber reinforced resin sleeper according to the present invention has the configuration as described above, and can withstand a large lateral pressure and a severe shear stress distribution in spite of its low density as a whole. In addition, it has a predetermined bending strength and can drive dog nails etc. without cracking, and because dog nails are driven into the high-density member at two locations on the tip side of the dog nail on the tie plate side, the pull-out strength of dog nails is high. Can be improved. Therefore, it can be provided as a corrosion-resistant sleeper that facilitates speeding up of trains, installation suitable for bridge girder tracks, and replacement work.
第１図Ａは本発明の一実施例を示す斜視図、第１図Ｂは
第１図Ａにおけるｂ−ｂ線断面図、第２図は同上実施例
の使用状態を示す説明図、第３図は本発明の別実施例を
示す断面図である。 １…枕木主体、２…高密度部材FIG. 1A is a perspective view showing an embodiment of the present invention, FIG. 1B is a sectional view taken along line bb in FIG. 1A, and FIG. 2 is an explanatory view showing a usage state of the embodiment. The drawing is a cross-sectional view showing another embodiment of the present invention. 1 ... Mainly sleepers, 2 ... High-density member
Claims (1)
おいて、密度が０．５〜０．６５ｇ／ｃｍ３で補強長繊
維量が４０〜６０重量％の組成で枕木主体を構成し、密
度が０．６５〜１．０ｇ／ｃｍ３で補強長繊維量が４０
〜６０重量％の高密度部材をレール締結部の上面及び下
面に組込んだことを特徴とする繊維補強樹脂製枕木。A sleeper made of a thermosetting resin foam reinforced with long fibers, which has a density of 0.5 to 0.65 g / cm 3 and a reinforcing long fiber amount of 40 to 60% by weight , constitutes a sleeper main body,
Degree is 0.65 to 1.0 g / cm 3 and reinforcement long fiber amount is 40
-60% by weight of high density material on the top and bottom of the rail fastening part
Fiber reinforced resin sleepers characterized by being incorporated into the surface .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35473295A JPH09105101A (en) | 1995-12-25 | 1995-12-25 | Fiber reinforced plastic sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35473295A JPH09105101A (en) | 1995-12-25 | 1995-12-25 | Fiber reinforced plastic sleeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09105101A true JPH09105101A (en) | 1997-04-22 |
Family
ID=18439539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35473295A Pending JPH09105101A (en) | 1995-12-25 | 1995-12-25 | Fiber reinforced plastic sleeper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09105101A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081007A (en) * | 2000-06-21 | 2002-03-22 | Sekisui Chem Co Ltd | Repair method and laying method for sleeper |
| JP2005054469A (en) * | 2003-08-05 | 2005-03-03 | Sekisui Chem Co Ltd | Sleeper, formed article and laying method of the sleeper |
| WO2005100691A1 (en) * | 2004-04-13 | 2005-10-27 | The University Of Southern Queensland | A railway sleeper |
| NL2011108C2 (en) * | 2013-07-05 | 2015-01-06 | Lankhorst Engineered Products B V | BIELS AND METHOD FOR THE CONSTRUCTION OR ADJUSTMENT OF A RAILWAY. |
| CN109895420A (en) * | 2019-03-21 | 2019-06-18 | 洛阳科博思新材料科技有限公司 | Integrated composite material sleeper and manufacturing method thereof |
| US11136724B2 (en) * | 2018-05-31 | 2021-10-05 | China Academy Of Railway Sciences Corporaton Limited Railway Engineering Research Institute | Fiber-reinforced prestressed reinforced concrete sleeper |
| JP2021179118A (en) * | 2020-05-14 | 2021-11-18 | 積水化学工業株式会社 | Structure of bridge sleeper and method for repairing the same |
-
1995
- 1995-12-25 JP JP35473295A patent/JPH09105101A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081007A (en) * | 2000-06-21 | 2002-03-22 | Sekisui Chem Co Ltd | Repair method and laying method for sleeper |
| JP2005054469A (en) * | 2003-08-05 | 2005-03-03 | Sekisui Chem Co Ltd | Sleeper, formed article and laying method of the sleeper |
| WO2005100691A1 (en) * | 2004-04-13 | 2005-10-27 | The University Of Southern Queensland | A railway sleeper |
| NL2011108C2 (en) * | 2013-07-05 | 2015-01-06 | Lankhorst Engineered Products B V | BIELS AND METHOD FOR THE CONSTRUCTION OR ADJUSTMENT OF A RAILWAY. |
| WO2015002531A1 (en) * | 2013-07-05 | 2015-01-08 | Lankhorst Engineered Products B.V. | Railroad tie assembly |
| US11136724B2 (en) * | 2018-05-31 | 2021-10-05 | China Academy Of Railway Sciences Corporaton Limited Railway Engineering Research Institute | Fiber-reinforced prestressed reinforced concrete sleeper |
| AU2018425837B2 (en) * | 2018-05-31 | 2022-02-24 | Beijing Tieke Shougang Track Technology Co. , Ltd | Fiber-reinforced prestressed reinforced concrete sleeper |
| CN109895420A (en) * | 2019-03-21 | 2019-06-18 | 洛阳科博思新材料科技有限公司 | Integrated composite material sleeper and manufacturing method thereof |
| JP2021179118A (en) * | 2020-05-14 | 2021-11-18 | 積水化学工業株式会社 | Structure of bridge sleeper and method for repairing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101602388B1 (en) | Flat spring for railroad vehicle bogie | |
| CS9100201A2 (en) | Rail superstructure and substructure for rail vehicles | |
| JPH09105101A (en) | Fiber reinforced plastic sleeper | |
| KR101683367B1 (en) | Fiber Reinforced Concrete Structure With End Slip Prevention | |
| JP2007321419A (en) | Reinforcement method of stretched floor slab using fiber reinforced reinforcing material | |
| JP3975082B2 (en) | How to lay connected sleepers | |
| JP3623615B2 (en) | Pillow | |
| JP4603189B2 (en) | Sleeper tree repair and laying methods | |
| JPS6123042Y2 (en) | ||
| JP2019152006A (en) | Bridge pc floor slab provided with fiber-reinforced concrete | |
| JP2933420B2 (en) | How to connect synthetic sleepers | |
| JP3065113B2 (en) | How to lay a track on a bridge | |
| JP2004100149A (en) | Sleeper | |
| JP2005009119A (en) | Connecting method of sleeper, connecting sleeper and installation method of connecting sleeper | |
| CN211872411U (en) | Track unit for bridge and track structure | |
| JP3425523B2 (en) | How to repair sleepers | |
| JP3896089B2 (en) | Railway sleepers | |
| JP2008082135A (en) | Road bridge reinforcing method | |
| JPH09316801A (en) | Composite sleeper | |
| JP3295477B2 (en) | Connection structure for synthetic sleepers | |
| JP2001220703A (en) | Connecting structure and connecting method for composite sleeper | |
| JP3272083B2 (en) | Connection structure for synthetic sleepers | |
| JP2000129603A (en) | Synthetic sleepers | |
| CN213804651U (en) | Vibration damping plate type ballastless track structure of railway steel truss girder bridge | |
| JP4081223B2 (en) | Repair method for existing sleepers |