JPH0131601Y2 - - Google Patents
Info
- Publication number
- JPH0131601Y2 JPH0131601Y2 JP1983083161U JP8316183U JPH0131601Y2 JP H0131601 Y2 JPH0131601 Y2 JP H0131601Y2 JP 1983083161 U JP1983083161 U JP 1983083161U JP 8316183 U JP8316183 U JP 8316183U JP H0131601 Y2 JPH0131601 Y2 JP H0131601Y2
- Authority
- JP
- Japan
- Prior art keywords
- expansion joint
- synthetic resin
- joint device
- drainage type
- type expansion
- 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
Links
- 239000010410 layer Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 15
- 239000003566 sealing material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000012791 sliding layer Substances 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 230000008602 contraction Effects 0.000 description 10
- 229920001971 elastomer Polymers 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
この考案は主として鋼製の伸縮継手装置に関す
る。[Detailed Description of the Invention] This invention mainly relates to an expansion joint device made of steel.
橋梁に用いられる伸縮継手のうち、フインガー
ジヨイントの如く、構造上間隙を有するものは、
この間隙から雨水や塵が下方に落下しないよう下
面にシール材が充てんされて非排水型伸縮継手装
置とされている。 Among the expansion joints used in bridges, those with structural gaps, such as finger joints,
The bottom surface is filled with a sealant to prevent rainwater and dust from falling downward through this gap, making it a non-drainage type expansion joint device.
従来、この種の装置は、対向した桁間（伸縮継
目部）の間隔内に配した樋状部分の底部にフオー
ムラバー等のバツクアツプ材を充てんすると共に
その上部にゴム等の弾性シール材を充てんして一
層のシーリング層を形成しているが、この構造で
は、シール材の伸縮状態が均一にならず、そのた
めシール材に亀裂が発生し、かつ、成長しやすい
こと、シール材の接着力に満足できる耐久力が得
られないなどの難点があつて、大きな伸縮量が発
生する橋梁の継目部には適さなかつた。 Conventionally, this type of device has been constructed by filling the bottom of a gutter-like part between opposing girders (expansion joints) with a back-up material such as foam rubber, and filling the top with an elastic sealing material such as rubber. However, with this structure, the expansion and contraction of the sealant is not uniform, which causes cracks to occur and grow easily, and the adhesive strength of the sealant to deteriorate. It had drawbacks such as not being able to provide satisfactory durability, making it unsuitable for bridge joints where large amounts of expansion and contraction occur.
また、この弾性シール材が元来の機能を果さな
くなつた場合、このシール材全部を取出し、新た
に全部を充てんする必要があり、作業時間、材
料、経費共に非常に不経済であつた。本考案はこ
のような難点を解決するものである。以下図に基
づいて説明する。 In addition, when this elastic sealing material no longer performs its original function, it is necessary to remove all of this sealing material and fill it with new material, which is extremely uneconomical in terms of working time, materials, and costs. . The present invention solves these difficulties. This will be explained below based on the figures.
第１図は従来例であつて、橋梁の対向した桁
１，１間に伸縮継目部が設定され、桁１，１の上
部に伸縮継手としてのフインガー２，２がかけ合
つて配置されている。そして、その下面にはゴム
等のシール材が充てんされ、一層のシーリング層
３とされている。記号４はフオームラバー等のバ
ツクアツプ材、記号５はステンレスあるいはゴム
製の樋である。樋５は前記桁１，１から継目部に
突出して固定された取付リブ６，６に下方からボ
ルトで固定されている。 Figure 1 shows a conventional example, in which an expansion joint is set between opposing girders 1 and 1 of a bridge, and fingers 2 and 2 as expansion joints are placed over each other at the top of girders 1 and 1. . The lower surface is filled with a sealing material such as rubber to form a single sealing layer 3. Symbol 4 is a backup material such as foam rubber, and symbol 5 is a gutter made of stainless steel or rubber. The gutter 5 is fixed from below to mounting ribs 6, 6 which protrude from the girders 1, 1 to the joint and are fixed thereto with bolts.
橋梁の伸縮運動で継目間隔が大きくなるとこの
シーリング層３は第２図イからロのように変形す
る。すなわち、伸張前のイ図においてシーリング
層３の深さはHo、幅はLoである。伸張後のロ図
においては深さはHo、幅L1、上面の円弧Lx1で
ある。 When the joint distance increases due to the expansion and contraction movement of the bridge, the sealing layer 3 deforms as shown in FIG. 2 A to B. That is, in the figure before stretching, the depth of the sealing layer 3 is Ho and the width is Lo. In the diagram after expansion, the depth is Ho, the width L 1 , and the arc Lx 1 of the top surface.
第３図以下は本考案の実施例に関するものであ
り、従来例と同じ構成部分には同符号を付して詳
しい説明を省略する。 FIG. 3 and subsequent figures relate to an embodiment of the present invention, and the same components as in the conventional example are given the same reference numerals and detailed explanations are omitted.
第３図の構成において、従来例と異なる点は、
シーリング層３が摺動層７を介して二層に形成さ
れていることである。なお、第３図実施例では、
２層であるが本考案の技術的思想からすれば、第
４図のようにシーリング層３を、各層間に摺動層
が存在した複数の層に形成することが要点であ
る。各層は弾性シール材からなり、その両端はそ
れぞれ対向した桁１，１に接着固定されている。 The configuration shown in Figure 3 differs from the conventional example as follows:
The sealing layer 3 is formed in two layers with the sliding layer 7 interposed therebetween. In addition, in the example shown in FIG.
Although there are two layers, from the technical idea of the present invention, the key point is to form the sealing layer 3 into a plurality of layers with a sliding layer between each layer as shown in FIG. Each layer is made of an elastic sealing material, and both ends thereof are adhesively fixed to opposing beams 1, 1, respectively.
摺動層７は、弾性シール材に対し、表裏面を離
型処理された合成樹脂シートあるいは、離型紙で
形成される。合成樹脂シートとしては、ポリエス
テルシート、ナイロンシート、塩化ビニールシー
ト等が適している。これらはいずれもシーリング
層３の複数ある各層を伸縮時の水平方向移動に関
して独自に移動可能とするためのものであつて、
この目的が達成されるものであれば、摺動層を形
成し得る。シート状のものに限らず継目部の構造
によつては例えば粒状砂やパラフインあるいはペ
ースト状の油脂等も使用できる。 The sliding layer 7 is formed of a synthetic resin sheet or a release paper whose front and back surfaces have been subjected to release treatment with respect to the elastic sealing material. Suitable synthetic resin sheets include polyester sheets, nylon sheets, vinyl chloride sheets, and the like. All of these are intended to enable each of the plurality of layers of the sealing layer 3 to move independently in terms of horizontal movement during expansion and contraction.
A sliding layer may be formed as long as this purpose is achieved. Not only sheet-like materials, but also granular sand, paraffin, paste-like oils and fats, etc. can be used depending on the structure of the joint.
シートを使用する場合は単に上下層間に一枚を
介するだけでも充分に摺動の効果はあるが、第５
図イに示すように二枚を重合させるとより効果的
である。この場合においても、第５図ロのよう
に、重合した二枚のシートのそれぞれをその桁
１，１側の一端でその層の上下シール材に固定し
ておくと伸縮作動の繰返しによつてシートが一個
所に偏在してしまうことが少ない。 When using a sheet, simply interposing one sheet between the upper and lower layers will have a sufficient sliding effect, but the fifth
It is more effective to polymerize two sheets as shown in Figure A. In this case, as shown in Figure 5B, if each of the two superposed sheets is fixed at one end on the girders 1 and 1 side to the upper and lower sealing materials of that layer, the repeated expansion and contraction action will Sheets are less likely to be unevenly distributed in one place.
なお、実際の施工に際しては第３図に示すよう
にバツクアツプ材４、樋５を用いることが多い。
バツクアツプ材はウレタンフオーム、およびポリ
エチレンホーム等であり、樋５はステンレスある
いはゴム製等で継目部の下方から取付リブ６に固
定される。 Incidentally, during actual construction, backup material 4 and gutter 5 are often used as shown in FIG.
The backup material is urethane foam, polyethylene foam, etc., and the gutter 5 is made of stainless steel, rubber, etc., and is fixed to the mounting rib 6 from below the joint.
第３図の本考案実施例において、橋梁の伸縮運
動で継目間隔が大きくなるとシーリング層３は第
６図イからロのように変形する。すなわち、伸張
前のイ図において、シーリング材３の深さはHo
＝H1＋H1、幅はLoであり、伸張後において深さ
はHo＝H1＋H1で幅がL1、上面の円弧はLx2であ
る。 In the embodiment of the present invention shown in FIG. 3, when the joint distance increases due to the expansion and contraction movement of the bridge, the sealing layer 3 deforms as shown in FIG. 6 A to B. In other words, in Figure A before stretching, the depth of the sealant 3 is Ho
=H 1 +H 1 , the width is Lo, and after stretching, the depth is Ho = H 1 +H 1 , the width is L 1 , and the arc of the top surface is Lx 2 .
以上の構成であるから第２図、第６図の比較か
ら、幾何学上明らかなように、L1＜Lx2＜Lx1と
なり伸縮運動によるシーリング層３の伸縮はシー
リング層が第３図の如く二層とされて一方が第１
図のように単層の場合よりへこみや盛り上がりが
少なくなり、その結果、次のような効果を発揮す
る。すなわち、シール材の伸縮が均一となり亀裂
の発生やその成長を防止できると共に、桁との接
着力が増し、その耐久性も向上する。このような
効果は、シーリング層が多層構造の度を増す程増
加する。また、万一、シール材の疲労などにより
亀裂や破壊が生じるとしても殆んど最上段の層で
あり、この場合はその最上段の層のみ入れ換える
ことにより元の状態にできるから、非常に経済的
でもある。 With the above configuration, it is clear from the geometrical comparison of FIGS. 2 and 6 that L 1 <Lx 2 <Lx 1 , and the expansion and contraction of the sealing layer 3 due to the expansion/contraction movement is caused by the expansion and contraction of the sealing layer 3 as shown in FIG. There are two layers, one being the first.
As shown in the figure, there are fewer dents and bulges than in the case of a single layer, resulting in the following effects. That is, the sealing material expands and contracts uniformly, preventing the occurrence and growth of cracks, and increasing the adhesive strength with the girder, thereby improving its durability. This effect increases as the sealing layer becomes more multilayered. In addition, even if the sealing material cracks or breaks due to fatigue, it will most likely occur in the top layer, and in this case, the original state can be restored by replacing only the top layer, making it extremely economical. It is also a target.
したがつて、本考案は、大伸縮量が予期される
橋梁の伸縮継目部に弾性シール材によるシーリン
グ層を、従来のものにおける難点を解決して、採
用できる非排水型の伸縮継手装置である。 Therefore, the present invention is a non-drainage type expansion joint device that can solve the difficulties of conventional devices and employ a sealing layer made of an elastic sealing material at the expansion joint portion of a bridge where a large amount of expansion and contraction is expected. .
第１図は従来例の断面図、第２図イ，ロは従来
例におけるシーリング層の伸張状態を説明する断
面図。第３図は本考案の一実施例を示す断面図、
第４図はシーリング層の他の実施例を示す断面
図、第５図イ，ロはさらに他の実施例を示す断面
図、第６図イ，ロは本考案におけるシーリング層
の伸張状態を示す断面図。
１……桁、２……伸縮継手、３……シーリング
層、４……バツクアツプ材、５……樋、６……取
付けリブ、７……摺動層、８……接着部。
FIG. 1 is a sectional view of a conventional example, and FIGS. 2A and 2B are sectional views illustrating the stretched state of the sealing layer in the conventional example. FIG. 3 is a sectional view showing an embodiment of the present invention;
FIG. 4 is a sectional view showing another embodiment of the sealing layer, FIGS. 5A and 5B are sectional views showing still another embodiment, and FIGS. Cross-sectional view. DESCRIPTION OF SYMBOLS 1... Girder, 2... Expansion joint, 3... Sealing layer, 4... Backup material, 5... Gutter, 6... Mounting rib, 7... Sliding layer, 8... Adhesive part.
Claims (1)
裏面に密着して、弾性シール材を前記桁に両端
を固着して配してなり、このシール材は摺動層
を介して複数段に構成されたシーリング層とさ
れていることを特徴とした非排水型伸縮継手装
置。 (2) 摺動層が離型処理された合成樹脂シートで形
成されていることを特徴とした実用新案登録請
求の範囲(1)に記載の非排水型伸縮継手装置。 (3) 合成樹脂シートがポリエステルシートである
ことを特徴とした実用新案登録請求の範囲(2)に
記載の非排水型伸縮継手装置。 (4) 合成樹脂シートがナイロンシートであること
を特徴とした実用新案登録請求の範囲(2)に記載
の非排水型伸縮継手装置。 (5) 合成樹脂シートが塩化ビニールシートである
ことを特徴とした実用新案登録請求の範囲(2)に
記載の非排水型伸縮継手装置。 (6) 摺動層が離型紙で形成されていることを特徴
とした実用新案登録請求の範囲(1)に記載の非排
水型伸縮継手装置。 (7) 一つの摺動層が二枚の合成樹脂シートもしく
は離型紙から形成され、それぞれは桁側の一端
でその層の上下段シール材に固定されているこ
とを特徴とした実用新案登録請求の範囲(2)また
は(6)に記載の非排水型伸縮継手装置。[Claims for Utility Model Registration] (1) An expansion joint is fixed at the upper part between opposing girders, and an elastic sealing material is placed in close contact with the back side of the joint, with both ends fixed to the girder, and this seal A non-drainage type expansion joint device characterized in that the material is a sealing layer composed of multiple stages with a sliding layer in between. (2) The non-drainage type expansion joint device according to claim (1), wherein the sliding layer is formed of a synthetic resin sheet that has been subjected to mold release treatment. (3) The non-drainage type expansion joint device according to claim (2), wherein the synthetic resin sheet is a polyester sheet. (4) The non-drainage type expansion joint device according to claim (2), wherein the synthetic resin sheet is a nylon sheet. (5) The non-drainage type expansion joint device according to claim (2), wherein the synthetic resin sheet is a vinyl chloride sheet. (6) The non-drainage type expansion joint device according to claim (1), wherein the sliding layer is formed of release paper. (7) A request for registration of a utility model characterized in that one sliding layer is formed from two synthetic resin sheets or release paper, each of which is fixed at one end on the girder side to the upper and lower sealing materials of that layer. Non-drained expansion joint devices according to scope (2) or (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8316183U JPS59188506U (en) | 1983-05-31 | 1983-05-31 | Non-drained expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8316183U JPS59188506U (en) | 1983-05-31 | 1983-05-31 | Non-drained expansion joint device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59188506U JPS59188506U (en) | 1984-12-14 |
| JPH0131601Y2 true JPH0131601Y2 (en) | 1989-09-28 |
Family
ID=30213120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8316183U Granted JPS59188506U (en) | 1983-05-31 | 1983-05-31 | Non-drained expansion joint device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59188506U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5766545B2 (en) * | 2011-08-12 | 2015-08-19 | ニッタ株式会社 | Expansion joint for bridge |
| JP5662540B1 (en) * | 2013-10-16 | 2015-01-28 | 山内 重一 | Load-supporting telescopic device for road bridge and its manufacturing method |
| JP6411781B2 (en) * | 2014-06-11 | 2018-10-24 | 中外道路株式会社 | Water stop structure of road bridge joint |
| JP6697872B2 (en) * | 2015-12-18 | 2020-05-27 | 株式会社橋梁メンテナンス | Filling material for expansion and contraction equipment for bridges |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101904A (en) * | 1981-12-14 | 1983-06-17 | 株式会社富士技研 | Extensible joint of bridge beam |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5859804U (en) * | 1981-10-14 | 1983-04-22 | 株式会社サンケンスチ−ル | Water stop device for comb-shaped expansion joint equipment |
-
1983
- 1983-05-31 JP JP8316183U patent/JPS59188506U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101904A (en) * | 1981-12-14 | 1983-06-17 | 株式会社富士技研 | Extensible joint of bridge beam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59188506U (en) | 1984-12-14 |
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