JPH0756125B2 - Gutter of bridge expansion joint - Google Patents
Gutter of bridge expansion jointInfo
- Publication number
- JPH0756125B2 JPH0756125B2 JP28510786A JP28510786A JPH0756125B2 JP H0756125 B2 JPH0756125 B2 JP H0756125B2 JP 28510786 A JP28510786 A JP 28510786A JP 28510786 A JP28510786 A JP 28510786A JP H0756125 B2 JPH0756125 B2 JP H0756125B2
- Authority
- JP
- Japan
- Prior art keywords
- gutter
- expansion joint
- side wall
- bridge
- bellows
- 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 - Lifetime
Links
Landscapes
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は長大橋などの橋梁伸縮継手部に用いられる樋に
関し、さらに詳しくは、樋を屈撓性に富む横長方形上の
弾性シート材で形成し、かつ、その側壁を樋材端辺を蛇
腹状にひだ折り接合して樋材と連続一体に形成した前記
樋に関するものである。Description: TECHNICAL FIELD The present invention relates to a gutter used for a bridge expansion joint such as a long bridge, and more specifically, a gutter made of an elastic sheet material having a horizontal rectangular shape with high flexibility. The present invention relates to the above-mentioned gutter, which is formed integrally with the gutter material by forming a side wall of the gutter material by pleating and folding the gutter material edges into a bellows shape.
（従来の技術） 近年、橋梁建造技術の著しい進歩に伴い、本四架橋をは
じめとして各地で大規模な架橋工事が進められている
が、特に、橋長が1000mを超えるような長大橋において
は、一般に、橋梁と橋台または橋梁相互の連結部に最大
2000mmにも及ぶ大きな橋軸方向の相対変位が生じるた
め、ここに特殊な大型のリンク式伸縮継手装置を介設し
て橋軸方向の変位を吸収し、かつ、橋梁上の路面を平面
的に連続させ車輌の安定走行を可能にしている。(Conventional technology) In recent years, with the remarkable progress of bridge construction technology, large-scale bridge construction is being promoted in various places including Honshi Bridge, especially for long bridges with a bridge length of over 1000 m. , In general, maximum for bridges and abutments or connections between bridges
Since a large relative displacement in the bridge axis direction of up to 2000 mm occurs, a special large-scale link expansion joint device is installed here to absorb the displacement in the bridge axis direction and to make the road surface on the bridge flat. It makes it possible to continuously drive the vehicle in a continuous manner.
即ち、上記のリンク式伸縮装置は、第５図に示す如く、
橋梁（１），（１）′の端部にユニバーサルジョイント
（２）を介して連結される横梁（３），（３）′を互い
に四節リンク機構（４），（４）′を介して互いに平行
移動可能に連結すると共に、各横梁（３），（３）′か
ら橋軸方向（Ｘ）に沿い水平に突設した多数の櫛形フィ
ンガー（５），（５）′を互いに摺動可能に組み合わ
せ、その自由端側を前記四節リンク機構（４），
（４）′の中間に水平に支持された中間横梁（６）上面
に移動可能に載置することにより、前記フィンガー
（５），（５）′を常時水平に保持しながら、橋梁連結
部の変位量を吸収する構成となっている。（特公昭52−
32173号公報参照） また、上記のリンク式伸縮継手部装置においては、路面
から前記フィンガー（５），（５）′間の隙間（７）に
流れ込んだ雨水や土砂等を捕集排出するため、前記横梁
（３），（３）′と中間横梁（６）との間の空間に前記
橋軸方向（Ｘ）と直交する横長の樋が配設されている。That is, the link type expansion / contraction device described above, as shown in FIG.
Cross beams (3) and (3) 'connected to the ends of the bridges (1) and (1)' via universal joints (2) are connected to each other via four-bar linkages (4) and (4) '. A number of comb-shaped fingers (5), (5) 'that are horizontally projected from each cross beam (3), (3)' along the bridge axis direction (X) are slidable while being connected to each other so that they can move in parallel with each other. And the free end side thereof is connected to the four-bar linkage (4),
(4) 'is movably placed on the upper surface of the intermediate cross beam (6) which is horizontally supported in the middle, so that the fingers (5) and (5)' are always held horizontally and the bridge connecting part It is configured to absorb the amount of displacement. (Japanese Patent Publication Sho52−
In addition, in the above-mentioned link type expansion joint unit device, since rainwater, earth and sand, etc. flowing into the gap (7) between the fingers (5) and (5) ′ from the road surface are collected and discharged, A laterally long gutter orthogonal to the bridge axis direction (X) is arranged in the space between the transverse beams (3) and (3) 'and the intermediate transverse beam (6).
ところで、従来のリンク式伸縮継手部装置に付設されて
いる樋としては、例えば第６図に示す如く、ステンレス
等の耐食性鋼板を断面Ｕ字状に折り曲げ形成した樋材
（８）の前後壁に平板型の導水板（９），（９）′をヒ
ンジ（10），（10）′により蝶着し、かつ該導水板
（９），（９）′の前後端を前記横梁（３），（３）′
および中間横梁（６）にヒンジ（11），（11）′を介し
て蝶着したもので、前記ヒンジ（10），（10）′，（1
1），（11）′の作用により橋軸（Ｘ）方向の変位長さ
を吸収しながら、前記フィンガー（５），（５）′の隙
間（７）から落下する雨水，土砂等を案内板（９），
（９）′および樋部材（８）で受止し、該樋部材（８）
に連結した図示なき縦樋を通じて排水する構造になって
いる。By the way, as a gutter attached to a conventional link type expansion joint part device, as shown in FIG. 6, for example, on the front and rear walls of a gutter material (8) formed by bending a corrosion resistant steel plate such as stainless steel into a U-shaped cross section. The flat plate type water guide plates (9), (9) 'are hinged by the hinges (10), (10)', and the front and rear ends of the water guide plates (9), (9) 'are connected to the horizontal beam (3), (3) ′
And hinged to the intermediate cross beam (6) via hinges (11), (11) ', and the hinges (10), (10)', (1
Guide plates for rainwater, earth and sand, etc. falling from the gap (7) between the fingers (5) and (5) 'while absorbing the displacement length in the bridge axis (X) direction by the action of 1) and (11)'. (9),
(9) ′ and the gutter member (8) receive the gutter member (8).
It has a structure that drains water through a vertical gutter (not shown) connected to.
（発明が解決しようとする問題点） ところが上述の如き金属製の樋では、車輌走行等の振動
により樋が共振し、騒音の発生原因になると共に、橋軸
方向の伸縮量を大きくしようとすると樋全体が大型化し
てより大きな取付けスペースを必要とし、更に樋部材
（８）の溝断面積が小さいため、小石などが堆積し易く
雨水の流れが悪くなる問題があった。(Problems to be solved by the invention) However, in the metal gutter as described above, when the gutter resonates due to the vibration of the vehicle traveling or the like, noise is generated, and when the expansion and contraction amount in the bridge axis direction is increased. There is a problem that the entire gutter becomes large and requires a larger installation space, and the groove cross-sectional area of the gutter member (8) is small, so that small stones are easily accumulated and the flow of rainwater is deteriorated.
なお、かかる不都合を克服すべく、伸縮継手装置用の樋
として、伸縮量の比較的小さい高架橋に用いられるゴム
製の樋、即ち、第７図に示す如く橋軸と直交して配置さ
れる樋材（12）全体をクロロプレンゴムやクロロプレン
ゴム引布などの横長方形状の弾性シート材で断面Ｕ字状
に構成し、かつ、該樋材（12）の両端に、該樋材（12）
と同材質のシート材で別体に形成した蛇腹状の側壁（1
3），（13）′を接着又はボルト止めにより接合一体化
した樋（特開昭59−199905号公報参照）を適用し、該樋
材（12）の前後壁（14），（15）の上縁を前記横梁およ
び中間横梁にボルト（16）で止着することにより樋の伸
縮量および溝容積の増加を図ることも考えられる。In order to overcome such inconvenience, as a gutter for expansion joint devices, a rubber gutter used for viaducts having a relatively small expansion and contraction amount, that is, a gutter arranged orthogonal to the bridge shaft as shown in FIG. The entire material (12) is made of a horizontally rectangular elastic sheet material such as chloroprene rubber or chloroprene rubber cloth and has a U-shaped cross section, and the gutter material (12) is provided at both ends of the gutter material (12).
A bellows-shaped side wall (1
3) and (13) 'are joined or integrated by bonding or bolting (see Japanese Patent Laid-Open No. 59-199905), and the front and rear walls (14) and (15) of the gutter material (12) are applied. It is also conceivable to fix the upper edge to the horizontal beam and the intermediate horizontal beam with bolts (16) to increase the expansion and contraction amount of the gutter and increase the groove volume.
しかしながら、上記のゴム製樋では、側壁（13），（1
3）′と樋材（12）とを別体に形成し、その後、両者を
接合したもので、接合部分の厚みが他の部分より大き
く、この部分の撓み性が阻害されているため、橋梁伸縮
継手部の伸縮量が大きい場合は、ここに曲げ応力が集中
し、接合部の剥離や亀裂が生じ易く水もれの心配があ
り、この点について更に改善すべき余地が残されてい
た。However, in the above rubber trough, the side walls (13), (1
3) ′ and the gutter (12) are formed separately and then joined together. The thickness of the joined part is larger than other parts and the flexibility of this part is obstructed. When the expansion / contraction amount of the expansion joint is large, bending stress concentrates here, and peeling or cracking of the joint is apt to occur, which may cause water leakage, and there is room for further improvement in this respect.
また、従来のゴム製樋では蛇腹状側壁（13），（13）′
の中央部が不安定であり、樋内に大量の雨水が流れ込ん
だときは、側壁（13），（13）′が外方に倒れて雨水が
流出する問題があった。Moreover, in the conventional rubber trough, the bellows side walls (13), (13) '
When the large amount of rainwater flowed into the gutter, the side walls (13) and (13) 'collapsed outward and rainwater flowed out.
本発明は、かかる従来の橋梁伸縮継手部に用いられる樋
が有していた問題点に着目してなされたもので、樋端部
に設けられる側壁を、溝底部構成する樋材の端辺をひだ
折りして蛇腹状となし、樋材と連続一体に形成して継ぎ
目をなくすと共に、該蛇腹状側壁のひだ折り部を溝底部
に立設した支持板の上端に連結することにより側壁の倒
れを防止し、もって前記問題点を解消せんとするもので
ある。The present invention has been made by paying attention to the problem that the gutter used for such a conventional bridge expansion joint has, and the side wall provided at the gutter end is provided with the edge of the gutter material that constitutes the groove bottom. The bellows are folded to form a bellows shape and formed integrally with the gutter to eliminate seams, and the folds of the bellows side wall are connected to the upper end of the support plate erected on the groove bottom to prevent the side wall from collapsing. It is intended to prevent and solve the above problems.
（問題点を解決するための手段） 上記目的を達成するための本発明の構成を、実施例に対
応する第１図および第２図について説明する。(Means for Solving Problems) A configuration of the present invention for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to the embodiment.
本発明の樋は、橋梁（21），（21）′間の伸縮継手部
（22）において、そのフィンガー（39），（39）′の下
方に橋軸（Ｘ）と直交して略水平に配設される断面Ｕ字
形の横長の樋であって、溝底面を形成する樋材（41）
は、全体がゴムの如き屈撓性に富む横長方形状の弾性シ
ート材よりなり、その樋端部において凸湾曲状に形成し
た端辺（48）を複数箇所内外交互にひだ折りして接合形
成した蛇腹状の側壁（52）を連続一体に有すると共に、
側側壁（52）のひだ折り部（49）が前記樋底部に貼着さ
れた継手部（53）に立設した支持板（54）の上端に連結
されている。The gutter of the present invention is, in the expansion joint part (22) between the bridges (21) and (21) ', arranged substantially horizontally below the fingers (39) and (39)', orthogonal to the bridge axis (X). A horizontally long gutter having a U-shaped cross section, which is provided, and which forms a groove bottom surface (41)
Is made of a flexible rectangular elastic sheet material such as rubber as a whole, and the end side (48) formed in a convex curved shape at the gutter end is folded and joined alternately at a plurality of places inside and outside. While having a bellows-shaped side wall (52) continuously and integrally,
The pleated portion (49) of the side wall (52) is connected to the upper end of a support plate (54) provided upright on the joint portion (53) attached to the trough bottom.
（作用） 上記構成の樋（40）は、樋材（41）の撓みにより橋軸方
向の溝幅が変化し、伸縮継手部（22）の変位長さを吸収
しながら、フィンガー（39），（39）′間の間隙から落
下する雨水や小石を受止するが、伸縮継手部（22）の変
位に伴って樋材（41）が屈撓するときは、その蛇腹状側
壁（52）が樋材（41）の底部と連続一体に形成され、境
界部分に応力が集中することなく伸縮するため、樋の寿
命が大巾に延長されると共に、そのひだ折り部（49）が
溝底に立設した支持板（54）と連結されているため、溝
内外への倒れがなく常時起立状態を保ち、雨水の流出を
防止することになる。(Operation) In the gutter (40) having the above configuration, the groove width in the bridge axis direction changes due to the bending of the gutter material (41), and the finger (39), while absorbing the displacement length of the expansion joint (22), It receives rainwater and pebbles falling from the gap between (39) ′, but when the gutter (41) bends due to the displacement of the expansion joint (22), its bellows side wall (52) It is formed integrally with the bottom of the gutter material (41) and expands and contracts without stress concentration at the boundary, so the life of the gutter is greatly extended and its folds (49) are located at the groove bottom. Since it is connected to the upright support plate (54), it does not fall into or out of the groove and always stands up to prevent rainwater from flowing out.
（実施例） 以下本発明の樋を添付図面にもとづいて詳細に説明す
る。(Example) A gutter of the present invention will be described in detail below with reference to the accompanying drawings.
第１図は本発明樋の１例を示す斜視図、第２図は同樋を
使用した橋梁用伸縮継手装置の側断面図、第３図は樋を
構成する樋材の一例を示す展開図である。FIG. 1 is a perspective view showing an example of the gutter of the present invention, FIG. 2 is a side sectional view of an expansion joint device for a bridge using the gutter, and FIG. 3 is a development view showing an example of a gutter material forming the gutter. Is.
これらの図において、（21）および（21）′は橋梁、
（22）は各橋梁（21），（21）′の連結端間に介設され
たリンク式伸縮継手装置であって、該伸縮継手装置（2
2）は、前記橋梁（21），（21）′の端部にユニバーサ
ルジョイント（23），（23）′を介して連結され、下面
の凸湾曲部（24），（24）′を前記橋梁（21），（2
1）′端部に設けた棚受部（25），（25）′に載置して
両端を支承した一対の横梁（26），（26）′と、該横梁
（26），（26）′に支点ピン（27），（27）′を介して
基端が揺動可能に連結され、先端が連結ピン（28）によ
りＶ字型に連結された主リンク（29），（29）′と、該
主リンク（29），（29）′の中間部に一端がピン（3
0），（30）′を介して連結され、他方端がピン（31）
により互いに逆Ｖ字形に連結された副リンク（32），
（32）′と、該副リンク（32），（32）′の連結部にて
ピン（31）により前記横梁（26），（26）′と平行に支
承された中間横梁（33）と、該中間横梁（33）の端部か
ら鉛直下方に垂下し、下端が前記主リンク（29），（2
9）′を接続するピン（28）と同軸的に設けたカラー（3
4）の縦孔（35）内に摺動可能に挿設された鉛直支承バ
ー（36）と、前記横梁（26），（26）′の上面に夫々フ
ィンガーピン（37），（37）′を介し基端部が揺動可能
に支承され、自由端側が前記中間横梁（33）の上面に設
けたソールプレート（38）上に載置された一対の櫛状フ
ィンガー（39），（39）′とから構成されている。In these figures, (21) and (21) 'are bridges,
(22) is a link type expansion joint device interposed between the connecting ends of the bridges (21), (21) '.
2) is connected to the ends of the bridges (21) and (21) 'through universal joints (23) and (23)', and the convex curved portions (24) and (24) 'on the lower surface are connected to the bridges (21) and (21)'. (21), (2
1) 'A pair of horizontal beams (26), (26)' mounted on shelf receiving parts (25), (25) 'and supported at both ends, and the horizontal beams (26), (26) Main links (29) and (29) 'whose base ends are swingably connected to ′ through fulcrum pins (27) and (27) ′ and whose ends are connected in a V shape by a connecting pin (28). And one end of the main link (29), (29) 'has a pin (3
0), (30) ', and the other end is a pin (31)
Secondary links (32) connected to each other in an inverted V shape by
(32) 'and an intermediate cross beam (33) supported in parallel with the cross beams (26), (26)' by a pin (31) at a connecting portion of the sub links (32), (32) ', It hangs vertically downward from the end of the intermediate cross beam (33), and the lower end thereof is the main links (29), (2
9) ′ connecting pin (28) with a collar (3
The vertical support bar (36) slidably inserted in the vertical hole (35) of 4) and the finger pins (37), (37) 'on the upper surfaces of the horizontal beams (26), (26)', respectively. A pair of comb-shaped fingers (39), (39) whose base end is swingably supported via a sole plate and whose free end side is placed on a sole plate (38) provided on the upper surface of the intermediate cross beam (33). ′ And.
（40）は、上記伸縮継手装置（22）のフィンガー（3
9），（39）′下方における前記横梁（26），（26）′
と中間横梁（33）との間の空間に橋軸（Ｘ）と直交して
略水平に配設された横長の樋であって、該樋（40）は、
クロロプレンゴムシート又はクロロプレンゴム引布など
の耐候性に優れ、かつ、屈撓性に富む横長方形状の弾性
シート材で構成された樋材（41）の前壁（42）および後
壁（43）を夫々前記横梁（26），（26）′および中間横
梁（33）の対向面にヒンジ部材（44），（45）、取付板
（46）およびボルト（47）を介して取付け、側断面Ｕ字
形の船底形に湾曲させたもので、該樋（40）は端部にお
いて、樋材（41）の端辺（48）を第３図に示す如く凸湾
曲形状に裁断し、これを複数箇所（図示例では５箇所）
において略等間隔をなして内外にひだ折りし、各ひだ折
り部（49a）〜（49e）を外面に添着した合成樹脂製の座
板（50），（50）′および該座板（50），（50）′に貫
設したボルト（51）で挟着することにより形成した蛇腹
状の側壁（52）を連続一体に具備している。(40) is a finger (3) of the expansion joint device (22).
9), (39) 'The horizontal beams (26), (26)' below
A horizontally long gutter which is arranged substantially horizontally in the space between the intermediate cross beam (33) and the bridge axis (X), and the gutter (40) is
A front wall (42) and a rear wall (43) of a trough material (41) composed of a horizontally rectangular elastic sheet material such as a chloroprene rubber sheet or a chloroprene rubber cloth which has excellent weather resistance and is highly flexible. Are attached to the facing surfaces of the transverse beams (26), (26) 'and the intermediate transverse beam (33) via hinge members (44), (45), a mounting plate (46) and a bolt (47), respectively, and a side section U The gutter (40) is curved at the end, and at the end of the gutter (40), the end side (48) of the gutter material (41) is cut into a convex curved shape as shown in FIG. (5 locations in the example shown)
Seats (50), (50) 'and seat plates (50) made of synthetic resin, which are fold-folded inward and outward at substantially equal intervals, and each fold-fold portion (49a) to (49e) is attached to the outer surface. , (50) 'are sandwiched by bolts (51) penetratingly provided, and a bellows-like side wall (52) is continuously and integrally provided.
また、上記樋材（41）は、前記側壁（52）近傍の溝底部
に、その長手方向に沿い長円形状の合成樹脂製の補強板
（53）が貼着されており、該補強板（53）の上面に立設
した尾翼形の支持板（54）の上端が前記側壁（52）の中
央のひだ折り部（49c）に対し、連結板（55），（5
5）′およびボルト（56）を介して連結されている。Further, the gutter member (41) has an oval-shaped synthetic resin reinforcing plate (53) adhered to the groove bottom near the side wall (52) along the longitudinal direction thereof. The upper end of the tail plate-shaped support plate (54) standing on the upper surface of (53) is connected to the center pleated portion (49c) of the side wall (52) by the connecting plates (55), (5
5) ′ and bolts (56).
（57）は、前記補強板（53）の一端に穿設された排水
孔、（58）は該排水孔（57）に上端を接続した縦樋、
（59）は樋材（41）がリンクに接触した時に該樋材（4
1）を保護すべく樋（40）の下面に接着された5mm程度の
厚さの長方形状ゴム板からなる弾性板、（60）は横梁
（26），（26）′および中間横梁（33）の側面より下降
傾斜して庇状に突設した水切り板である。(57) is a drainage hole formed at one end of the reinforcing plate (53), (58) is a downspout having an upper end connected to the drainage hole (57),
(59) is a gutter (41) when the gutter (41) contacts the link.
An elastic plate made of a rectangular rubber plate with a thickness of about 5 mm adhered to the lower surface of the gutter (40) to protect 1), and (60) is a horizontal beam (26), (26) 'and an intermediate horizontal beam (33). It is a draining plate which is inclined downward from the side surface of and protrudes like an eaves.
なお、上記の樋（40）は、伸縮継手装置（22）を橋梁
（21），（21）′の連結部の全幅に亘り、複数基並列に
配置する場合、両端の伸縮継手装置（22）に前記第１図
に示した如く蛇腹状側壁（52）を形成したものを一対使
用し、かつ、中間の伸縮継手装置（22）には同材質同一
幅の横長方形状の中間樋材を使用し、これらを互いに接
着などの手段により直列に繋ぎ合わせることにより両端
に側壁（52）を備えた細長い樋として形成される。The gutter (40) is provided with expansion joint devices (22) at both ends when the expansion joint devices (22) are arranged in parallel over the entire width of the connecting portion of the bridges (21) and (21) ′. A pair of those having the bellows-shaped side wall (52) as shown in FIG. 1 are used, and the intermediate expansion joint device (22) is a horizontal rectangular intermediate gutter of the same width. Then, these are connected in series by means such as bonding to form a long and narrow gutter having side walls (52) at both ends.
本発明の樋は叙上の構成を有するものであるが、次にそ
の作用について説明すると、先ず、橋梁（21），（2
1）′の揺れや昼夜の温度差等により連結部の間隔が大
きく変化したときは、フィンガー（39），（39）′がリ
ンク機構の作用により水平を保ちながら橋軸（Ｘ）方向
に相対摺動し、橋梁（21），（21）′間の長さ変化を吸
収し、路面上の車輌走行を可能にする。The gutter of the present invention has the above-mentioned structure. Next, its operation will be described. First, the bridge (21), (2
When the distance between the connecting parts changes significantly due to the shaking of 1) ′ or the temperature difference between day and night, the fingers (39) and (39) ′ are kept horizontal by the action of the link mechanism and are relatively moved in the bridge axis (X) direction. It slides and absorbs the change in length between the bridges (21) and (21) ', enabling the vehicle to run on the road surface.
このとき、横梁（26），（26）′および中間横梁（33）
の対向面間に介装された樋（40）は、溝底部の撓みによ
って橋軸（Ｘ）方向の幅（Ｗ）が変化し、フィンガー
（39），（39）′間の隙間から落下する雨水や小石を捕
集し、これを排水孔（57）から縦樋（58）を通じて排出
する。At this time, the horizontal beams (26), (26) 'and the intermediate horizontal beam (33)
The width (W) in the bridge axis (X) direction of the gutter (40) interposed between the opposing surfaces of the groove changes due to the bending of the groove bottom, and falls from the gap between the fingers (39) and (39) '. Rainwater and pebbles are collected and discharged from the drain hole (57) through the downspout (58).
また、樋（40）の前後幅（Ｗ）が変化するとき、その端
部に形成した蛇腹状の側壁（52）は、支持板（54）とひ
だ折り部（49c）との結合により倒れが防止された状態
で橋軸（Ｘ）方向に伸縮するため、樋（40）内に大量の
雨水が流入した場合も雨水の流出を確実に阻止すること
が出来る。Further, when the front-rear width (W) of the gutter (40) changes, the bellows-shaped side wall (52) formed at the end of the gutter (40) does not fall due to the connection between the support plate (54) and the pleated fold (49c). Since it expands and contracts in the bridge axis (X) direction while being prevented, rainwater can be reliably prevented from flowing out even if a large amount of rainwater flows into the gutter (40).
なお、上記実施例においては、側型（52）に設けられる
複数のひだ折り部（49aa）…（49c）のうち、中央の一
個のひだ折り部（49c）にのみ、支持板（54）の上端に
連結した態様を例示したが、樋（40）の溝幅（Ｗ）が大
きく蛇腹が倒れ易い場合は、第４図に示す如く、補強板
（53）の上面に支持板（54）と隣接して該支持板（54）
と同形状の可動支持板（54）′，（54）′をヒンジ（6
3），（63）′により蝶着し、該可動支持板（54）′，
（54）′の上端に他のひだ折り部（49a），（49e）を接
続すれば、より側壁（52）の倒れ防止効果が向上する。In the above embodiment, of the plurality of folds (49aa) ... (49c) provided on the side mold (52), only one central fold (49c) of the support plate (54) is provided. Although an example of connecting to the upper end is shown, when the groove width (W) of the gutter (40) is large and the bellows easily falls, a support plate (54) and a support plate (54) are provided on the upper surface of the reinforcing plate (53) as shown in FIG. Adjacent to the support plate (54)
Movable support plates (54) 'and (54)' of the same shape as the hinge (6
3) and (63) 'are hinged, and the movable support plates (54)',
If the other folds (49a) and (49e) are connected to the upper end of (54) ', the effect of preventing the side wall (52) from collapsing is further improved.
また、支持板（54）の両側に配置する可動支持板（5
4）′，（54）′として屈撓性を有する板材を使用し、
これを直接補強板（53）上に立設しても同様に側壁（5
2）の倒れ防止を図ることが出来る。In addition, the movable support plates (5
4) ', (54)' is a flexible plate material,
Even if this is erected directly on the reinforcing plate (53), the side wall (5
It is possible to prevent the fall of 2).
更に、上記各実施例においては、樋を長大橋の如き伸縮
量の大きな橋梁に使用する大型のリンク式伸縮継手装置
に付設した場合について説明したが、本発明の樋の応用
範囲は別段これに限定されるものではなく、例えば、高
速道路の高架橋の伸縮継手部（実公昭51−20196号公報
など参照）の如く伸縮量の比較的小さい継手部に適用す
ることも勿論可能である。Furthermore, in each of the above-mentioned embodiments, a case was described in which the gutter was attached to a large-sized link type expansion joint device used for a bridge having a large expansion and contraction amount such as a long bridge, but the application range of the gutter of the present invention is not limited to this. The present invention is not limited to the above, and it is of course possible to apply the present invention to a joint portion having a relatively small amount of expansion and contraction, such as an expansion joint portion of a highway viaduct (see Japanese Utility Model Publication No. 51-20196).
（発明の効果） 以上述べた如く本発明の樋は、橋梁伸縮継手部のフィン
ガー下方において、橋軸と直交し略水平に配置される側
断面Ｕ字状の樋の樋材をゴムの如き屈撓性に富む弾性シ
ート材で構成し、樋端部に凸湾曲状の端辺を複数箇所ひ
だ折り接合した蛇腹状の側壁を連続一体に形成すると共
に、該側壁のひだ折り部を前記樋材底面に貼着された補
強板から上方に立設した支持板の上端に連結することに
より前記蛇腹状の側壁が倒れないように支持せしめたも
のであるから、側壁部分と樋材の他の部分との間の全く
継ぎ目が無く、橋梁伸縮継手部の変位に応じて樋の溝幅
が変化するときも、局部的な曲げ応力が作用しないた
め、樋の寿命が大巾に延長し、樋の取り替え間隔が長く
なってメンテナンスが容易になるというすぐれた効果を
発揮する。(Effect of the invention) As described above, in the gutter of the present invention, the gutter material of the gutter having a U-shaped side cross section, which is arranged substantially horizontally and orthogonal to the bridge axis, is provided under the fingers of the bridge expansion joint, and is bent like a rubber. It is made of an elastic sheet material having high flexibility, and a bellows-shaped side wall in which a plurality of convex curved edges are pleated and joined to the gutter end is integrally formed continuously, and the fold portion of the side wall is formed into the gutter bottom surface. Since the bellows-shaped side wall is supported so as not to fall by connecting to the upper end of the support plate standing upright from the reinforcing plate attached to the side wall part and the other part of the gutter. There is no joint between the two, and even when the groove width of the gutter changes according to the displacement of the bridge expansion joint, the local bending stress does not act, so the life of the gutter is greatly extended, and the gutter can be replaced. Excellent effect that the interval is long and maintenance is easy To do.
しかも、本発明の樋によれば、樋材の端辺をひだ折りし
接合するだけで側壁の形成が可能であり、従来のゴム製
樋の如く側壁を構成する蛇腹部と溝底を構成する樋材と
を別体に成形し、その後両者を繋ぎ合わせる如き製造工
程の煩雑さがなく、樋の製造が容易になると共に、溝底
部に立設した支持板の上端に蛇腹状側壁のひだ折り部分
が連結されているため側壁の伸縮を妨げることなく、そ
の倒れを防止することが出来、雨水の流出を未然に防止
し得るという効果もある。Moreover, according to the gutter of the present invention, the side wall can be formed only by folding and joining the end sides of the gutter material, and the bellows and the groove bottom which form the side wall are formed like the conventional rubber gutter. There is no complication of the manufacturing process such as molding the gutter material separately and then connecting the two together, facilitating the manufacture of the gutter and fold-folding the bellows side wall at the upper end of the support plate erected at the groove bottom. Since the parts are connected, the side wall can be prevented from collapsing without hindering the expansion and contraction of the side wall, and rainwater can be prevented from flowing out.
第１図は本発明に係る樋の一例を示す斜視部、第２図は
同樋を使用したリンク式伸縮継手装置の側断面図、第３
図は樋を構成する樋材の展開平面図、第４図は本発明樋
の他の実施例を示す側断面図、第５図はリンク式伸縮継
手装置の斜視図、第６図は同伸縮継手に用いられている
従来の金属製樋の一例を示す側断面図、第７図は従来の
ゴム製樋を示す斜視図である。 （21）（21）′……橋梁、 （22）……伸縮継手部（伸縮継手装置）、 （39）（39）′……フィンガー、 （40）……樋、 （41）……樋材、 （48）……樋材端辺、 （49）……ひだ折り部、 （52）……側壁、 （53）……補強板、 （54）（54）′……支持板、 （Ｘ）……橋軸。FIG. 1 is a perspective view showing an example of a gutter according to the present invention, FIG. 2 is a side sectional view of a link type expansion joint device using the gutter, and FIG.
FIG. 4 is a developed plan view of the gutter material constituting the gutter, FIG. 4 is a side sectional view showing another embodiment of the gutter of the present invention, FIG. 5 is a perspective view of a link type expansion joint device, and FIG. FIG. 7 is a side sectional view showing an example of a conventional metal gutter used for a joint, and FIG. 7 is a perspective view showing a conventional rubber gutter. (21) (21) ′ …… Bridge, (22) …… Expansion joint part (expansion joint device), (39) (39) ′ …… Finger, (40) …… Gutter, (41) …… Gutter , (48) …… gutter edge, (49) …… folds, (52) …… side wall, (53) …… stiffening plate, (54) (54) ′ …… support plate, (X) …… Bridge axis.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 昭 大阪府吹田市千里丘上38−１−804 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Yamada 38-1-804 Senriokaue, Suita City, Osaka Prefecture
Claims (1)
て、橋軸と直交し略水平に配置される側断面Ｕ字状の樋
であって、該樋は、その樋材がゴムの如き屈撓性に富む
横長方形状の弾性シート材よりなり、樋端部の凸湾曲状
の端辺を複数箇所ひだ折りして接合形成した蛇腹状の側
壁を連続一体に有すると共に、該側壁のひだ折り部が前
記樋材底面に貼着された補強板に立設した支持板の上端
に連結されていることを特徴とする橋梁伸縮継手部の
樋。1. A gutter having a U-shaped side cross section which is arranged substantially horizontally and orthogonal to the bridge axis below the fingers of the bridge expansion joint, the gutter having a flexible material such as a gutter made of rubber. It is made of a wide rectangular elastic sheet material and has a bellows-like side wall integrally formed by fold-folding the convex curved edge of the gutter end at a plurality of points, and the fold-fold portion of the side wall is A gutter for a bridge expansion joint, which is connected to the upper end of a support plate standing on a reinforcing plate attached to the bottom of the gutter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28510786A JPH0756125B2 (en) | 1986-11-29 | 1986-11-29 | Gutter of bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28510786A JPH0756125B2 (en) | 1986-11-29 | 1986-11-29 | Gutter of bridge expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63138007A JPS63138007A (en) | 1988-06-10 |
| JPH0756125B2 true JPH0756125B2 (en) | 1995-06-14 |
Family
ID=17687210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28510786A Expired - Lifetime JPH0756125B2 (en) | 1986-11-29 | 1986-11-29 | Gutter of bridge expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756125B2 (en) |
-
1986
- 1986-11-29 JP JP28510786A patent/JPH0756125B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63138007A (en) | 1988-06-10 |
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