JPH09287113A - Laminate board for preventing device against falling of bridge - Google Patents
Laminate board for preventing device against falling of bridgeInfo
- Publication number
- JPH09287113A JPH09287113A JP12650096A JP12650096A JPH09287113A JP H09287113 A JPH09287113 A JP H09287113A JP 12650096 A JP12650096 A JP 12650096A JP 12650096 A JP12650096 A JP 12650096A JP H09287113 A JPH09287113 A JP H09287113A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- plate
- laminated
- board
- rubber
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、橋梁（桁橋）が地
震等の衝撃により橋脚や橋台から落下するのを防止する
ために設けられる落橋防止装置、例えばその一つとして
橋脚に設置される落橋防止壁に衝撃緩衝材として固着さ
れる落橋防止装置用積層板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall prevention device provided to prevent a bridge (girder bridge) from falling from a pier or abutment due to an impact such as an earthquake, for example, it is installed on a pier. The present invention relates to a laminated plate for a bridge prevention device which is fixed to a bridge prevention wall as a shock absorbing material.
【０００２】[0002]
【従来の技術】上記の落橋防止装置としては、従来各種
のものが設置されており、例えば、ＰＣケーブルを用い
て橋脚上で隣接する端横桁同士を強力に連結する装置が
設置されているが、非常に大きな地震力に対しても確実
に落橋を防止するために、異なる種類の落橋防止装置の
併用が必要とされるようになっている。また、落橋防止
装置にはゴムクッション等を用いた緩衝材を付加するこ
とにより、衝撃的に作用する力を緩和する構造が求めら
れるようになっている。2. Description of the Related Art Conventionally, various types of bridge fall prevention devices have been installed, for example, a device for strongly connecting adjacent end girders on a pier using a PC cable. However, it has become necessary to use different types of bridge prevention devices together in order to prevent the bridges from falling down even with extremely large earthquake forces. In addition, a structure for absorbing shocking force is required by adding a cushioning material such as a rubber cushion to the bridge prevention device.
【０００３】このような観点から、例えばコンクリート
桁の場合、図１に示すように、橋脚１２上の主桁１３間
に端横桁１４に対向して鉄筋コンクリート製の落橋防止
壁１１や鋼製ブラケット２１からなる落橋防止装置を橋
脚１２に一体化して設置することが行われている。From this point of view, in the case of a concrete girder, for example, as shown in FIG. 1, reinforced concrete fall prevention walls 11 and steel brackets are provided between main girders 13 on bridge piers 12 facing end cross girders 14. The fall prevention device consisting of 21 is installed integrally with the pier 12.
【０００４】そして、このような落橋防止装置の壁面や
これと相対向する端横桁や主桁の壁面に、ゴム材からな
る緩衝材を取り付けた構造のものが、新しい落橋防止装
置として新設の橋梁のみならず既設の橋梁にも取り付け
られるようになっている。[0004] Then, a structure in which a cushioning material made of a rubber material is attached to the wall surface of such a bridge prevention device and the wall surfaces of the end girders and the main girders facing the wall surface of the bridge prevention device is newly provided as a new bridge prevention device. Not only the bridge but also the existing bridge can be installed.
【０００５】[0005]
【発明が解決しようとする課題】ところで、緩衝材の落
橋防止壁１１等への取り付けは、単にポリブタジエン等
のゴム系接着剤を緩衝材に塗布して貼着するだけであっ
たり、鉄板に緩衝材のゴムを焼き付けこの鉄板を介して
ボルトとナットで固定するものが大半であった。しかし
ながら、前者の場合、接着強度が弱く緩衝材が剥落して
しまう虞があり、後者の場合、鉄板の重量が重く取付作
業に困難を来すほか、永年使用中に鉄板が錆びてしまう
という問題があった。The cushioning material is attached to the bridge prevention wall 11 by simply applying a rubber-based adhesive such as polybutadiene to the cushioning material and adhering it, or by cushioning the steel plate. In most cases, the material rubber was baked and fixed with bolts and nuts through this iron plate. However, in the former case, the adhesive strength is weak and the cushioning material may come off, and in the latter case, the weight of the iron plate is heavy, which makes mounting work difficult, and the iron plate rusts during long-term use. was there.
【０００６】[0006]
【課題を解決するための手段】本発明は、前記の課題を
解決する緩衝材を提供せんとするもので、緩衝材をゴム
材からなる緩衝板と非金属材からなる取付板とからなる
積層板で構成し、この積層板は未加硫ゴム材と非金属材
とを積層して加熱加圧により両者を加硫接着して一体化
して落橋防止装置用積層板とするものである。また、緩
衝材の取付板を、熱硬化性樹脂を主体とするシート 、
緩衝板を形成するゴム材より硬質のゴムシート、繊維を
埋入して補強されたゴムシート、または、熱可塑性樹脂
を主体とするシートなどのゴム材と加硫接着可能なシー
トにより形成するものである。DISCLOSURE OF THE INVENTION The present invention provides a cushioning material for solving the above-mentioned problems, wherein the cushioning material is a laminate including a cushioning plate made of a rubber material and a mounting plate made of a non-metallic material. This laminated plate is formed by laminating an unvulcanized rubber material and a non-metallic material, and vulcanizing and adhering them by heating and pressurizing to integrate them into a laminated bridge for a bridge prevention device. In addition, the mounting plate of the cushioning material is a sheet mainly composed of thermosetting resin,
A rubber sheet that is harder than the rubber material that forms the cushioning plate, a rubber sheet that is reinforced by embedding fibers, or a sheet that is vulcanizable and adhesive to a rubber material such as a sheet that is mainly made of thermoplastic resin Is.
【０００７】また、本発明は、橋脚上の隣接する主桁同
士の間に形成される空間に端横桁に対向して橋脚に一体
化して設置される落橋防止壁に固着される落橋防止装置
用積層板、端横桁の落橋防止壁と対向する面に固着され
る落橋防止装置用積層板、または、主桁の落橋防止壁と
対向する面に固着される落橋防止装置用積層板を提供す
るものである。Further, according to the present invention, a bridge-prevention device fixed to a bridge-prevention wall installed integrally with the pier facing the end girder in a space formed between adjacent main girders on the pier. Laminate plate, bridge plate for bridge prevention device fixed to the surface of the end girder facing the bridge prevention wall, or laminate plate for bridge prevention device fixed to the surface of the main girder facing the bridge prevention wall To do.
【０００８】[0008]
【実施例】以下、本発明を図面に示す一実施例に基づい
て説明する。本発明に係る落橋防止装置用積層板１は、
図２に示すように、クロロプレンゴム（硬度５５度程
度）などのゴム材製の緩衝板２と熱硬化性樹脂を主体と
するシートからなる取付板３が積層され加熱加圧されて
両者２，３が加硫接着して一体化されたもので、その寸
法は略５０mm厚×１５０mm×幅７００mm長さに形成され
ており、本実施例では、未加硫ゴムが加硫成形されて緩
衝板２を形成すると同時に、未硬化の熱硬化性樹脂が硬
化成形されて取付板３を形成し、しかも両者２，３が接
着一体化することが一挙に行われている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. The laminated plate 1 for a bridge prevention device according to the present invention is
As shown in FIG. 2, a cushioning plate 2 made of a rubber material such as chloroprene rubber (hardness of about 55 degrees) and a mounting plate 3 made of a sheet mainly composed of a thermosetting resin are laminated and heated to press the two. No. 3 is vulcanized and bonded and integrated, and its dimensions are approximately 50 mm thickness × 150 mm × width 700 mm length. In this embodiment, unvulcanized rubber is vulcanized and molded into a cushioning plate. At the same time as forming 2, the uncured thermosetting resin is cured and molded to form the mounting plate 3, and the two and 3 are bonded and integrated at once.
【０００９】取付板３を形成する素材としては、基材に
未硬化の熱硬化性樹脂が含浸されてシート状に形成され
たもので、未加硫ゴムとの加硫接着時に同時に硬化可能
なものが選択され、例えば、ガラスクロスからなる基材
にエポシキ樹脂を含浸したものや、マット状のガラス繊
維からなる基材にポリエステル樹脂を含浸したものが好
ましい。As a material for forming the mounting plate 3, a base material is impregnated with an uncured thermosetting resin to be formed into a sheet shape, which can be simultaneously cured when vulcanized and adhered to an unvulcanized rubber. Those selected are preferable, for example, a base material made of glass cloth impregnated with epoxy resin and a base material made of mat-like glass fiber impregnated with polyester resin are preferable.
【００１０】なお、取付板３には、緩衝板２を形成する
ゴム材より硬質のゴムシート例えば硬度９０度程度の硬
質の未加硫ゴムシートを素材として用い、緩衝板２の前
駆体である未加硫ゴムと積層し加硫成形するとともに同
時に加硫接着により一体化して積層板１を構成すること
ができる。さらに、層内に布や短繊維（ナイロン繊維な
どの）からなる繊維を埋入して補強した未加硫ゴムシー
ト、塩化ビニル樹脂やポリオレフィン系樹脂などの熱可
塑性樹脂を主体とするシート等の緩衝板２の前駆体であ
る未加硫ゴムと積層し加圧加熱により加硫接着して一体
化可能な非金属材を取付板３の素材として用いることが
できる。A rubber sheet that is harder than the rubber material forming the cushioning plate 2, for example, a hard unvulcanized rubber sheet having a hardness of about 90 degrees is used as a material for the mounting plate 3, and is a precursor of the cushioning plate 2. It is possible to construct the laminated plate 1 by laminating with unvulcanized rubber, vulcanizing and molding, and at the same time, integrating with vulcanization adhesion. In addition, such as unvulcanized rubber sheet reinforced by embedding fibers or short fibers (such as nylon fibers) in the layers, sheets mainly composed of thermoplastic resins such as vinyl chloride resin and polyolefin resin, etc. A non-metal material that can be laminated by vulcanizing and bonding with unvulcanized rubber that is a precursor of the buffer plate 2 and pressure-heated to be integrated can be used as the material of the mounting plate 3.
【００１１】図３は積層板１のコンクリート壁（例えば
落橋防止壁）１０面への取付状態を示し、コンクリート
壁１０面に当接された積層板１は、頭部が緩衝板３に穿
設された大径孔４に収容され取付板３に穿設されたボル
ト孔５に挿通されたボルト６と上記大径孔４に収容され
ボルト６に螺合された締付ナット７により固着されてい
る。なお、積層板１の固着は上記のボルト，ナットによ
る例に限られず、接着剤の塗布その他公知の取付方法を
用いることができる。FIG. 3 shows a state in which the laminated plate 1 is attached to a concrete wall (for example, a bridge prevention wall) 10 surface, and the head of the laminated plate 1 abutted against the concrete wall 10 surface is punched in the buffer plate 3. Fixed by a bolt 6 housed in the large hole 4 and inserted into a bolt hole 5 formed in the mounting plate 3 and a tightening nut 7 housed in the large hole 4 and screwed into the bolt 6. There is. Note that the fixing of the laminated plate 1 is not limited to the example using the bolts and nuts described above, and adhesive coating or other known attachment methods can be used.
【００１２】図４乃至図７は本発明に係る積層板１が取
り付けられる箇所を例示するもので、鉄筋コンクリート
製の落橋防止壁１１が橋脚１２上の隣接する主桁１３，
１３……同士の間に形成される空間に端横桁１４に対向
して橋脚１２に一体化して設置されており、積層板１
は、この落橋防止壁１１の端横桁１４に対向する面１１
Ａ並びに隣接する主桁に対向する面１１Ｂ、また、主桁
１３や端横桁１４の落橋防止壁１１と対向する面１３Ａ
や１４Ａにも取り付けられている。 また、図示しない
が、前記鋼製ブラケット２１の端横桁１４の対向面など
にも取り付けることができる。FIGS. 4 to 7 exemplify locations where the laminated plate 1 according to the present invention is attached. A bridge prevention wall 11 made of reinforced concrete is provided on a bridge pier 12 with adjacent main girders 13,
13 ... Installed integrally with the pier 12 facing the end cross girder 14 in the space formed between the laminated plates 1
Is a surface 11 facing the end cross girder 14 of the bridge prevention wall 11.
A and a surface 11B that faces the adjacent main girder, and a surface 13A that faces the bridge prevention wall 11 of the main girder 13 and the end cross girder 14.
Also attached to 14A. Although not shown, the steel bracket 21 can also be attached to the facing surface of the end cross beam 14 or the like.
【００１３】[0013]
【発明の効果】本発明によれば、緩衝材を落橋防止装置
に取り付けるにあたり、ゴムを焼き付けた鉄板を取付板
として用いるのと比べて、重量が著しく軽量化されしか
もゴム緩衝板と加硫接着により一体化した非金属製の取
付板を用いるので、緩衝材の運搬や現場におけるボル
ト、ナットや接着剤の使用による取付作業が容易であ
る。また、緩衝材全体として防食性に優れており、長期
間風雨に晒されても錆などが発生せず、耐久性に優れて
永年使用できるものである。さらに、緩衝板と取付板の
積層工程と加硫接着による一体成形工程とが一工程で行
なえるので、成形効率の良い緩衝材を得られる利点があ
る。According to the present invention, in attaching the cushioning material to the bridge prevention device, the weight is remarkably reduced as compared with the case where an iron plate baked with rubber is used as the attachment plate, and the rubber cushion plate and the vulcanization adhesive are attached. Since the non-metallic mounting plate integrated by means of is used, it is easy to carry the cushioning material and to mount it by using bolts, nuts and adhesives on site. Further, the cushioning material as a whole has excellent anticorrosion properties, does not generate rust even when exposed to wind and rain for a long time, and has excellent durability and can be used for many years. Furthermore, since the step of laminating the cushioning plate and the mounting plate and the integral molding step by vulcanization adhesion can be performed in one step, there is an advantage that a cushioning material with good molding efficiency can be obtained.
【図１】落橋防止装置の一例を示す側面図。FIG. 1 is a side view showing an example of a bridge collapse prevention device.
【図２】本発明に係る積層板の断面図。FIG. 2 is a sectional view of a laminated board according to the present invention.
【図３】本発明に係る積層板の取付状態の一例を示す側
面断面図。FIG. 3 is a side sectional view showing an example of a mounted state of a laminated board according to the present invention.
【図４】本発明に係る積層板の取付箇所を示す正面図。FIG. 4 is a front view showing a mounting portion of a laminated board according to the present invention.
【図５】本発明に係る積層板の取付箇所を示す側面図。FIG. 5 is a side view showing a mounting portion of a laminated board according to the present invention.
【図６】本発明に係る積層板の取付箇所を示す拡大側面
図。FIG. 6 is an enlarged side view showing a mounting portion of a laminated board according to the present invention.
【図７】本発明に係る積層板の取付箇所を示す平面図。FIG. 7 is a plan view showing a mounting portion of a laminated board according to the present invention.
１ 積層板 ２ 緩衝板 ３ 取付板 ４ 大径孔 ５ ボルト孔 ６ ボルト ７ 締付ナット １０ コンクリート壁 １１ 落橋防止壁 １２ 橋脚 １３ 主桁 １４ 端横桁 ２１ 鋼製ブラケット 1 Laminated Plate 2 Buffer Plate 3 Mounting Plate 4 Large Diameter Hole 5 Bolt Hole 6 Bolt 7 Tightening Nut 10 Concrete Wall 11 Falling Bridge Prevention Wall 12 Bridge Pier 13 Main Girder 14 End Cross Girder 21 Steel Bracket
Claims (8)
る取付板とからなる積層板であって、未加硫ゴム材と非
金属材とが積層され加熱加圧により両者が加硫接着され
一体化されていることを特徴とする落橋防止装置用積層
板。1. A laminated plate comprising a cushioning plate made of a rubber material and a mounting plate made of a non-metal material, wherein an unvulcanized rubber material and a non-metal material are laminated and vulcanized and bonded by heating and pressing. Laminated plate for bridge prevention device characterized by being integrated into one.
トにより形成されている請求項１に記載の落橋防止装置
用積層板。2. The laminated plate for a fall prevention device according to claim 1, wherein the mounting plate is formed of a sheet mainly composed of a thermosetting resin.
質のゴムシートにより形成されている請求項１に記載の
落橋防止装置用積層板。3. The laminated plate for a fall prevention device according to claim 1, wherein the mounting plate is formed of a rubber sheet that is harder than a rubber material forming the buffer plate.
シートにより形成されている請求項１に記載の落橋防止
装置用積層板。4. The laminated plate for a fall bridge prevention device according to claim 1, wherein the mounting plate is formed of a rubber sheet reinforced by embedding fibers therein.
トにより形成されている請求項１に記載の落橋防止装置
用積層板。5. The laminated plate for a fall prevention device according to claim 1, wherein the mounting plate is formed of a sheet mainly composed of a thermoplastic resin.
れる空間に端横桁に対向して橋脚に一体化して設置され
る落橋防止壁に固着される請求項１に記載の落橋防止装
置用積層板。6. The fall bridge according to claim 1, which is fixed to a fall prevention wall which is installed integrally with the pier facing the end cross girder in a space formed between adjacent main girders on the pier. Laminate for protection devices.
される請求項１に記載の落橋防止装置用積層板。7. The laminated board for a bridge prevention device according to claim 1, which is fixed to a surface of the end girder facing the bridge prevention wall.
れる請求項１に記載の落橋防止装置用積層板。8. The laminated board for a bridge prevention device according to claim 1, which is fixed to a surface of the main girder facing the bridge prevention wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12650096A JPH09287113A (en) | 1996-04-22 | 1996-04-22 | Laminate board for preventing device against falling of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12650096A JPH09287113A (en) | 1996-04-22 | 1996-04-22 | Laminate board for preventing device against falling of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09287113A true JPH09287113A (en) | 1997-11-04 |
Family
ID=14936752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12650096A Pending JPH09287113A (en) | 1996-04-22 | 1996-04-22 | Laminate board for preventing device against falling of bridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09287113A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010196294A (en) * | 2009-02-24 | 2010-09-09 | Ihi Infrastructure Systems Co Ltd | Repair construction method for i-shaped girder bridge |
| JP2010196380A (en) * | 2009-02-25 | 2010-09-09 | Ihi Infrastructure Systems Co Ltd | Reinforcing method for main girder end part and main girder end part reinforcing member used in this method |
| JP2011117240A (en) * | 2009-12-07 | 2011-06-16 | Nippon Sharyo Seizo Kaisha Ltd | Displacement limiting device |
| JP2016156140A (en) * | 2015-02-23 | 2016-09-01 | エム・エムブリッジ株式会社 | Bridge |
-
1996
- 1996-04-22 JP JP12650096A patent/JPH09287113A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010196294A (en) * | 2009-02-24 | 2010-09-09 | Ihi Infrastructure Systems Co Ltd | Repair construction method for i-shaped girder bridge |
| JP2010196380A (en) * | 2009-02-25 | 2010-09-09 | Ihi Infrastructure Systems Co Ltd | Reinforcing method for main girder end part and main girder end part reinforcing member used in this method |
| JP2011117240A (en) * | 2009-12-07 | 2011-06-16 | Nippon Sharyo Seizo Kaisha Ltd | Displacement limiting device |
| JP2016156140A (en) * | 2015-02-23 | 2016-09-01 | エム・エムブリッジ株式会社 | Bridge |
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