JP2012047035A - Vertical buffer anchor pin - Google Patents

Vertical buffer anchor pin Download PDF

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JP2012047035A
JP2012047035A JP2011172537A JP2011172537A JP2012047035A JP 2012047035 A JP2012047035 A JP 2012047035A JP 2011172537 A JP2011172537 A JP 2011172537A JP 2011172537 A JP2011172537 A JP 2011172537A JP 2012047035 A JP2012047035 A JP 2012047035A
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anchor pin
vertical buffer
hole
elastic ring
ring
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JP5241893B2 (en
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Jun Nakamura
準 中村
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SANYO ROAD IND
Sanyo Road Industry Co Ltd
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SANYO ROAD IND
Sanyo Road Industry Co Ltd
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  • Vibration Prevention Devices (AREA)
  • Springs (AREA)
  • Bridges Or Land Bridges (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

PROBLEM TO BE SOLVED: To inexpensively provide a vertical buffer anchor pin for buffering vibrations of a bridge during earthquakes, by facilitating manufacture and construction.SOLUTION: A vertical buffer anchor pin 3 is inserted into an abutment from a hole 4a of a flange 4 with a predetermined thickness, which is protrusively provided on a lateral surface of a main girder of a bridge, so as to buffer horizontal vibrations of the main girder with respect to the abutment. A positioning material 6 is fixed to the vertical buffer anchor pin 3 in a position corresponding to the hole 4a. An elastic body ring 7 made of a rubber molding is inserted from the top of the anchor pin 3 until it abuts on the positioning material 6 in the hole 4a, and fixed to the vertical buffer anchor pin 3 by being tightened from a position above the elastic body ring 7 via a washer larger in diameter than the hole 4a by means of a nut 12.

Description

本発明は、地震のとき等に橋梁が橋台に対して水平に振動するのを緩衝するとともに、一定以上の変位を規制する縦型緩衝アンカーピンに関するものである。   The present invention relates to a vertical shock-absorbing anchor pin that cushions horizontal vibration of a bridge with respect to an abutment during an earthquake or the like and restricts displacement above a certain level.

橋梁は橋台の上に主桁を水平方向に移動可能に据え付けている。地震等に際して橋梁が振動で横揺れすると、橋梁と橋台とでは高さも違うし、重量も異なることから、周期や変位及び位相が異なる。このため、橋梁を橋台に強固に固定していると、破壊が起こったりする。一方で、橋梁を自由に変位させると、これも大きな変位となって橋台からずれたり、破壊の危険性もある。このため、主桁の側面にフランジを突設し、このフランジから弾性体を装着した縦型緩衝アンカーピンを橋台に埋入してその緩衝と過大変位の規制を図っている。   The bridge is installed on the abutment so that the main girder can move horizontally. When the bridge rolls due to vibration during an earthquake or the like, the height, the weight and the weight of the bridge and the abutment differ, so the period, displacement, and phase differ. For this reason, if the bridge is firmly fixed to the abutment, destruction may occur. On the other hand, if the bridge is displaced freely, this will also be a large displacement and it may be displaced from the abutment and there is a risk of destruction. For this reason, a flange is provided on the side face of the main girder, and a vertical shock-absorbing anchor pin fitted with an elastic body is embedded in the abutment to restrict the shock and excessive displacement.

この縦型緩衝アンカーピンとしては、下記特許文献1のものがある。この先行例は、繊維とゴム弾性体のシートを縦型緩衝アンカーピンに直接巻き付けて積層し、これを縦型緩衝アンカーピンに加硫接着しているものである。したがって、巻付けに非常に手間がかかり、さらに、加硫加工を必要とし、コストの高いものになっている。また、加硫接着剤を使用することから、素材費を必要とする上に作業環境が悪くなる。   As this vertical buffer anchor pin, there is one of the following Patent Document 1. In this preceding example, a sheet of fiber and a rubber elastic body is directly wound around a vertical buffer anchor pin and laminated, and this is vulcanized and bonded to the vertical buffer anchor pin. Therefore, winding is very troublesome, and further, vulcanization is required, resulting in high cost. In addition, since a vulcanized adhesive is used, material costs are required and the working environment is deteriorated.

一方、成形品のゴム弾性体を使用するものとして、下記特許文献2のものがあり、これは繊維とゴムを積層したものをリング状の成形品にして縦型緩衝アンカーピン(軸部)に嵌め込むものであるが、このとき、リングと軸部とをネジ又は上下非対象の突起で固定を図るとしている。これであると、ネジを長くに亘って形成する必要があり,加工コストがかかる上にリングを端から所定位置まで一々回さなくてはならず、組立が大変煩わしい。さらに、ネジの部分では強度が低下するから、必要以上の太い素材を使用しなければならず、重量、コストともに増加する。なお、上下非対象の突起とはどのようなものかも不明である。   On the other hand, as the one using the rubber elastic body of the molded product, there is one of the following Patent Document 2, which is a ring-shaped molded product obtained by laminating fibers and rubber to a vertical buffer anchor pin (shaft portion). At this time, the ring and the shaft are fixed with screws or non-vertical protrusions. In this case, it is necessary to form the screw over a long period of time, and the processing cost is high, and the ring must be rotated from the end to the predetermined position one by one, and the assembly is very troublesome. Furthermore, since the strength is reduced at the screw portion, it is necessary to use an unnecessarily thick material, which increases both weight and cost. In addition, it is not clear what the upper and lower non-target protrusions are.

特開平09−177746号公報JP 09-177746 A 特開平10−196626号公報Japanese Patent Laid-Open No. 10-196626

本発明が解決しようとする課題は、緩衝効果が高い縦型緩衝アンカーピンを製作や施工を簡単にして安価に提供することである。   The problem to be solved by the present invention is to provide a vertical shock-absorbing anchor pin having a high shock-absorbing effect at a low cost by simplifying manufacture and construction.

以上の課題の下、本発明は、請求項1に記載した、橋梁の主桁の側面に突設した所定厚みのフランジの孔から橋台に挿入して橋台に対する主桁の水平向きの振動を緩衝する縦型緩衝アンカーピンにおいて、孔に相応する位置の縦型緩衝アンカーピンに位置決め材を固定するとともに、ゴムの成形品からなる弾性体リングをアンカーピンの上から孔の中で位置決め材に当接するまで挿入し、弾性体リングの上から孔の径よりも大きい座金を介して弾性体リングをナットで締め付けて縦型緩衝アンカーピンに固定したことを特徴とする縦型緩衝アンカーピンを提供したものである。   Under the above-described problems, the present invention provides a buffer for damping horizontal vibration of the main girder relative to the abutment by inserting it into the abutment through a flange having a predetermined thickness protruding from the side surface of the main girder of the bridge. In the vertical buffer anchor pin to be fixed, a positioning material is fixed to the vertical buffer anchor pin at a position corresponding to the hole, and an elastic ring made of a rubber molded product is applied to the positioning material in the hole from above the anchor pin. A vertical shock-absorbing anchor pin is provided, which is inserted until contacted, and is fixed to the vertical shock-absorbing anchor pin by tightening the elastic ring with a nut through a washer larger than the diameter of the hole from above the elastic ring. Is.

また、本発明は、以上の縦型アンカーピンにおいて、請求項2に記載した、位置決め材がゴム弾性体の外径よりも小さい径の位置決めリングを縦型緩衝アンカーピンに固着したものである手段、請求項3に記載した、弾性体リングの底面に凹型ポケットを形成し、位置決めリングを凹型ポケットに底面をほぼ面一にして嵌入した樹段、請求項4に記載した、弾性体リングが繊維入りのもので、繊維がゴムと積層されており、繊維が二軸又はそれ以上の多軸のものである手段、請求項5に記載した、アンカーピンと弾性体リングとを接着剤で接着した手段を提供する。   Further, according to the present invention, in the above vertical anchor pin, the positioning member according to claim 2 is a means in which a positioning ring having a diameter smaller than the outer diameter of the rubber elastic body is fixed to the vertical buffer anchor pin. 5. A tree step in which a concave pocket is formed on the bottom surface of the elastic ring according to claim 3, and the positioning ring is fitted into the concave pocket with the bottom surface being substantially flush with each other, and the elastic ring according to claim 4 is a fiber. A means in which fibers are laminated with rubber and the fibers are biaxial or more multiaxial, means for adhering an anchor pin and an elastic ring according to claim 5 with an adhesive I will provide a.

請求項1の発明によると、予めゴム弾性体をリングに成形しておき(もちろん、加硫も行う)、これを縦型緩衝アンカーピンに挿入するだけでよいから、製造及び組立操作も簡単でコストも安くなる。これにおいて、弾性体リングは位置決め材とナットとによって縦型緩衝アンカーピンと孔に対して正確に位置決めされているから、十分な緩衝作用を発揮する。請求項2の手段によれば、位置決め材が簡単に構成できるし、請求項3の手段によれは、位置決めリングが弾性体リングの底面に覗かないから見映えがよい。請求項4の手段によれは、ゴムが強化されて破壊強度が高くなるし、請求項5の手段によれば、縦型緩衝アンカーピンと弾性体リングを一体のものとして扱える。   According to the first aspect of the present invention, the rubber elastic body is formed into a ring in advance (of course, vulcanization is also performed), and it is only necessary to insert the rubber elastic body into the vertical buffer anchor pin. Cost is also reduced. In this case, since the elastic ring is accurately positioned with respect to the vertical buffer anchor pin and the hole by the positioning member and the nut, a sufficient buffering effect is exhibited. According to the second aspect of the present invention, the positioning member can be easily configured. According to the third aspect of the present invention, the positioning ring does not look into the bottom surface of the elastic ring, so that it looks good. According to the means of claim 4, the rubber is strengthened to increase the breaking strength, and according to the means of claim 5, the vertical buffer anchor pin and the elastic ring can be handled as a single body.

縦型緩衝アンカーピンの取付状態を示す側面図である。It is a side view which shows the attachment state of a vertical buffer anchor pin. 縦型緩衝アンカーピンの取付状態を示す要部側面図である。It is a principal part side view which shows the attachment state of a vertical buffer anchor pin. 縦型緩衝アンカーピンの他の状態を示す要部側面図である。It is a principal part side view which shows the other state of a vertical buffer anchor pin.

以下、本発明の実施の形態を図面を参照して説明する。図1は縦型緩衝アンカーピン(伊か、アンカーピン)の取付状態を示す側面図であるが、橋梁の主桁1は、地震等に対処するために、橋台2に対して水平方向に移動可能に据え付けられている。したがって、主桁1は橋台2に対して振動(移動)が可能になっており、これによって地震等の衝撃を緩和している。ただ、主桁1を無制限に滑動させると、橋台からずれて損壊等が起こるから、緩衝の他に過度の変位を規制している。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing a mounting state of a vertical buffer anchor pin (Ika or anchor pin), but the main girder 1 of the bridge moves in the horizontal direction with respect to the abutment 2 in order to cope with an earthquake or the like. It is installed as possible. Therefore, the main girder 1 can vibrate (move) with respect to the abutment 2, thereby mitigating the impact such as an earthquake. However, if the main girder 1 is slid indefinitely, the main girder 1 is displaced from the abutment and damage or the like occurs.

これを行うのがアンカーピン3であり、本例では、主桁1の側面に孔4aのあいたフランジ4を側方に突設し(孔4aがあいた主桁1のフランジ部分であってもよい)、孔4aから水平方向に弾性機能を有するアンカーピン3を橋台2のスラブ5に埋入してコンクリート等で固定している。したがって、このアンカーピン3は垂直(縦)方向に挿入され、水平方向の振動を緩衝することになるから、縦型緩衝と称している。   This is performed by the anchor pin 3, and in this example, the flange 4 having the hole 4 a on the side surface of the main girder 1 protrudes laterally (the flange portion of the main girder 1 having the hole 4 a may be used. ), The anchor pin 3 having an elastic function in the horizontal direction from the hole 4a is embedded in the slab 5 of the abutment 2 and fixed with concrete or the like. Therefore, the anchor pin 3 is inserted in the vertical (longitudinal) direction, and the vibration in the horizontal direction is buffered.

アンカーピン3は鋼棒であり、本例では、リング状のゴムである弾性体リング7を装着しており、その所定位置に弾性体リング7を受け止める位置決め材6として位置決めリング6aを固定している。位置決めリング6aの固定は溶接等が普通であるが、段差やスナップリングでもよい。また、位置決めリング6aは完全に円形である必要はなく、異形なものや部分的に存在しているものでもよい。ここで所定位置というのは、図2に示すように、アンカーピン3を埋入して弾性体リング7を挿入したときに弾性体リング7がフランジ4の孔4aに納まる位置のことである。このときの位置決めリング6aの径は孔4a(弾性体リング7)の径よりも小さくしたものでよい。   The anchor pin 3 is a steel rod. In this example, an elastic ring 7 that is a ring-shaped rubber is attached, and a positioning ring 6a is fixed as a positioning member 6 for receiving the elastic ring 7 at a predetermined position. Yes. The positioning ring 6a is usually fixed by welding or the like, but may be a step or a snap ring. Further, the positioning ring 6a does not need to be completely circular, and may be irregular or partially present. Here, as shown in FIG. 2, the predetermined position is a position where the elastic ring 7 is fitted in the hole 4 a of the flange 4 when the anchor pin 3 is embedded and the elastic ring 7 is inserted. The diameter of the positioning ring 6a at this time may be smaller than the diameter of the hole 4a (elastic body ring 7).

さらに、このときの弾性体リング7は繊維8入りのゴムを使用するのが好ましい。この場合のゴムはクロロプレンゴムが適しており、繊維8はナイロン繊維等が適している。その製法は、ゴムのシートと繊維を積層状態に巻回することになる(もちろん、弾性体リング7は成形品であるから、この積層したものを成形するとともに、加熱(加硫)する)。これにおいて、繊維8は一軸のものより縦横の二軸或いは斜めにも入ったそれ以上のもの(例えば四軸)の方が強度が高くなって好ましい。   Further, it is preferable to use rubber containing fibers 8 as the elastic ring 7 at this time. In this case, chloroprene rubber is suitable for the rubber, and nylon fiber is suitable for the fiber 8. In the manufacturing method, a rubber sheet and fibers are wound in a laminated state (of course, since the elastic ring 7 is a molded product, the laminated material is molded and heated (vulcanized)). In this case, the fibers 8 are preferably biaxially or horizontally biaxially or more than diagonally (for example, four axes) because the strength is higher.

次いで、施工の方法について説明すると、アンカーピン3をフランジ4の孔4aに上から挿入し(位置決めリング6aの径が孔4aの径よりも小さいことから、これが可能になる)、その回りにコンクリートを打ち込んで固定する。この場合、孔4aの下方にはスラブ5から支柱9を盛り上げておき、この中に固定するのが一般的であり、また、弾性体リング7は孔4aから覗いているのが好ましいし、位置決めリング6aと支柱9との間にわずかな隙間を形成しておく。橋梁1の自由な振動を阻害しないためと、施工誤差を吸収するためである。   Next, the construction method will be described. The anchor pin 3 is inserted into the hole 4a of the flange 4 from above (this is possible because the diameter of the positioning ring 6a is smaller than the diameter of the hole 4a), and the concrete around it. To fix. In this case, it is general that a support column 9 is raised from the slab 5 below the hole 4a and fixed therein, and the elastic ring 7 is preferably viewed from the hole 4a. A slight gap is formed between the ring 6 a and the support column 9. This is because the free vibration of the bridge 1 is not hindered and construction errors are absorbed.

そして、弾性体リング7をアンカーピン3に嵌め込むのであるが、このとき、弾性体リング7は孔4aの中にある程度隙間を有する寸法のものにしておき、上方からゴム座金10と金属座金11を介してナット12を締めて位置決めリング6aに押し付けたとき、弾性体リング7が膨らんで孔4aの中にきっちりと納まるようにするのが適する。このためには、少なくとも金属座金11は孔4aの径よりも大きいものにしておく必要がある。なお、弾性体リング7を予めアンカーピン3に嵌め込んでおいてもよい。   Then, the elastic ring 7 is fitted into the anchor pin 3. At this time, the elastic ring 7 is dimensioned to have a certain gap in the hole 4a, and the rubber washer 10 and the metal washer 11 from above. When the nut 12 is tightened and pressed against the positioning ring 6a, the elastic ring 7 swells and fits in the hole 4a. For this purpose, at least the metal washer 11 needs to be larger than the diameter of the hole 4a. The elastic ring 7 may be fitted into the anchor pin 3 in advance.

ところで、弾性体リング7を取り付けたアンカーピン3は孔4aの中では上昇は可能であるが、アンカーピン3は橋台2、つまり、支柱9で固定されているから、位置がずれることはほとんどない。仮に、橋梁1と橋台2が上下に相対的な振動があっても、孔4aの下には弾性体リング7と位置決めリング6aが覗いているから、弾性体リング7及びアンカーピン3が上方に抜け出ることはない(もちろん、下方には座金11によって動かない)し、橋梁1と橋台2との隙間はわずかであるから、橋台2(支柱9)が橋梁1に当たってからはそれ以上上方に変位することはない。さらに、ナット12の上には抜け止めを図るための割りピン13等を取り付けておく。   By the way, the anchor pin 3 to which the elastic ring 7 is attached can be lifted in the hole 4a. However, since the anchor pin 3 is fixed by the abutment 2, that is, the support column 9, the position is hardly shifted. . Even if the bridge 1 and the abutment 2 are subject to relative vibration in the vertical direction, the elastic ring 7 and the positioning ring 6a are seen under the hole 4a. It will not come out (of course, it will not move by the washer 11 below), and the gap between the bridge 1 and the abutment 2 is very small, so that the abutment 2 (post 9) will be displaced further upwards after hitting the bridge 1. There is nothing. Further, a split pin 13 or the like for securing the stopper is attached on the nut 12.

以上のアンカーピン3によれば、地震等で橋梁1が橋台2に対して相対的に振動した際、この弾性体リング7の水平方向の弾性力でその振動を緩衝し、かつ、大きな変位を抑制できる。このとき、位置決めリング6aはこの変位を抑制するとともに、弾性体リング7が支柱9に擦れて変形しようとするのを抑制する働きをする。   According to the anchor pin 3 described above, when the bridge 1 vibrates relative to the abutment 2 due to an earthquake or the like, the vibration is buffered by the elastic force of the elastic ring 7 in the horizontal direction, and a large displacement is caused. Can be suppressed. At this time, the positioning ring 6 a functions to suppress this displacement and to suppress the elastic ring 7 from being rubbed against the support 9 and being deformed.

ところで、以上は接着剤を使用しない例であるが、弾性体リング7を接着剤でアンカーピン3に固定してもよい。弾性体リング7には軸方向の力はほとんどかからないから、アンカーピン3への固定は上記の方法で十分であるが、アンカーピン3と弾性体リング7を固定しておけば、運搬、保管及び施工等に対して両者を一体のものとして取り扱うことができる。したがって、取扱いが簡便になり、一方を忘れるということがないし、施工時の嵌合操作も省ける利点がある。接着は、両者の界面に接着剤を塗布し、この接着剤の接着力で固定するのが一般的であるが、これには、補助的な接着(仮止め)と、本格的な接着(本止め)とがある。   By the way, although the above is an example which does not use an adhesive agent, you may fix the elastic body ring 7 to the anchor pin 3 with an adhesive agent. Since the elastic ring 7 is hardly applied with an axial force, the anchor pin 3 can be fixed by the above method. However, if the anchor pin 3 and the elastic ring 7 are fixed, transportation, storage and Both can be handled as a single unit for construction and the like. Therefore, handling is simple, there is an advantage that one is not forgotten, and a fitting operation at the time of construction can be omitted. In general, the adhesive is applied to the interface between the two and fixed with the adhesive force of this adhesive. Stop).

図3は位置決めリング6aの他の例を示したものであるが、これは位置決めリング6aの径を弾性体リング7の径より小さいものにするとともに、弾性リング7の底面にこの位置決めリング7が納まる凹型ポケット14を形成し、位置決めリング6aを凹型ポケット14に底面がほぼ面一になるまで押し込んだものである。これによると、位置決めリング6aが外から見えず、デザイン的に優れたものになるし、上記した弾性体リング7の変形抑制効果が高くなる。   FIG. 3 shows another example of the positioning ring 6a. In this case, the diameter of the positioning ring 6a is made smaller than the diameter of the elastic ring 7, and the positioning ring 7 is formed on the bottom surface of the elastic ring 7. The recessed pocket 14 is formed, and the positioning ring 6a is pushed into the recessed pocket 14 until the bottom surface is substantially flush. According to this, the positioning ring 6a cannot be seen from the outside, the design is excellent, and the deformation suppressing effect of the elastic ring 7 described above is enhanced.

1 橋梁の主桁
2 橋台
3 縦型緩衝アンカーピン
3a 〃 の段差
4 主桁のフランジ
4a 〃 の孔
5 スラブ
6 位置決め材
6a 位置決めリング
7 弾性体リング
8 繊維
9 支柱
10 ゴム座金
11 金属座金
12 ナット
13 割りピン
14 凹型ポケット
DESCRIPTION OF SYMBOLS 1 Bridge main girder 2 Abutment 3 Vertical buffer anchor pin 3a 段 差 step 4 Main girder flange 4a 孔 hole 5 Slab 6 Locating material 6a Locating ring 7 Elastic ring 8 Fiber 9 Post 10 Rubber washer 11 Metal washer 12 Nut 13 Split pin 14 Recessed pocket

Claims (5)

橋梁の主桁の側面に突設した所定厚みのフランジの孔から橋台に挿入して橋台に対する主桁の水平向きの振動を緩衝する縦型緩衝アンカーピンにおいて、孔に相応する位置の縦型緩衝アンカーピンに位置決め材を固定するとともに、ゴムの成形品からなる弾性体リングをアンカーピンの上から孔の中で位置決め材に当接するまで挿入し、弾性体リングの上から孔の径よりも大きい座金を介して弾性体リングをナットで締め付けて縦型緩衝アンカーピンに固定したことを特徴とする縦型緩衝アンカーピン。   A vertical shock absorber pin that is inserted into the abutment through a flange hole with a predetermined thickness protruding from the side of the main girder of the bridge to damp horizontal vibration of the main girder relative to the abutment. While fixing the positioning material to the anchor pin, insert an elastic ring made of rubber molding from above the anchor pin until it contacts the positioning material in the hole, and it is larger than the diameter of the hole from above the elastic ring A vertical buffer anchor pin, wherein an elastic ring is tightened with a nut through a washer and fixed to a vertical buffer anchor pin. 位置決め材がゴム弾性体の外径よりも小さい径の位置決めリングを縦型緩衝アンカーピンに固着したものである請求項1の縦型緩衝アンカーピン。   2. The vertical buffer anchor pin according to claim 1, wherein the positioning member is formed by fixing a positioning ring having a diameter smaller than the outer diameter of the rubber elastic body to the vertical buffer anchor pin. 弾性体リングの底面に凹型ポケットを形成し、位置決めリングを凹型ポケットに底面をほぼ面一にして嵌入したものである請求項2の縦型緩衝アンカーピン。   The vertical shock-absorbing anchor pin according to claim 2, wherein a concave pocket is formed on the bottom surface of the elastic ring, and the positioning ring is fitted into the concave pocket with the bottom surface being substantially flush. 弾性体リングが繊維入りのもので、繊維がゴムと積層されており、繊維が二軸又はそれ以上の多軸のものである請求項1〜3いずれかの縦型緩衝アンカーピン。   The vertical buffer anchor pin according to any one of claims 1 to 3, wherein the elastic ring includes fibers, the fibers are laminated with rubber, and the fibers are biaxial or multiaxial. アンカーピンと弾性体リングとを接着剤で接着した請求項1〜4いずれかの縦型緩衝アンカーピン。   The vertical buffer anchor pin according to any one of claims 1 to 4, wherein the anchor pin and the elastic ring are bonded with an adhesive.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014034762A (en) * 2012-08-07 2014-02-24 Union Kensetsu Kk Fixing device for bridge crosstie
CN109208540A (en) * 2018-10-10 2019-01-15 中铁大桥勘测设计院集团有限公司 A kind of anti-collision ring segment connecting flange, bridge-collision-avoidance circle and processing method
CN110131355A (en) * 2019-06-17 2019-08-16 宁波奥克斯电气股份有限公司 A kind of damping washer and air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61101118U (en) * 1984-12-07 1986-06-27
JP2007040097A (en) * 2005-07-01 2007-02-15 Tokyo Fabric Kogyo Kk Displacement limiting device for bridge facility

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61101118U (en) * 1984-12-07 1986-06-27
JP2007040097A (en) * 2005-07-01 2007-02-15 Tokyo Fabric Kogyo Kk Displacement limiting device for bridge facility

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014034762A (en) * 2012-08-07 2014-02-24 Union Kensetsu Kk Fixing device for bridge crosstie
CN109208540A (en) * 2018-10-10 2019-01-15 中铁大桥勘测设计院集团有限公司 A kind of anti-collision ring segment connecting flange, bridge-collision-avoidance circle and processing method
CN109208540B (en) * 2018-10-10 2020-07-21 中铁大桥勘测设计院集团有限公司 Anti-collision ring segment connecting flange, bridge anti-collision ring and machining method
CN110131355A (en) * 2019-06-17 2019-08-16 宁波奥克斯电气股份有限公司 A kind of damping washer and air conditioner

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