JPS6340487Y2 - - Google Patents
Info
- Publication number
- JPS6340487Y2 JPS6340487Y2 JP1985083112U JP8311285U JPS6340487Y2 JP S6340487 Y2 JPS6340487 Y2 JP S6340487Y2 JP 1985083112 U JP1985083112 U JP 1985083112U JP 8311285 U JP8311285 U JP 8311285U JP S6340487 Y2 JPS6340487 Y2 JP S6340487Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water stop
- stop material
- gap
- expansion joint
- 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
- 239000000463 material Substances 0.000 claims description 55
- 239000003000 extruded plastic Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 230000008602 contraction Effects 0.000 description 12
- 239000000565 sealant Substances 0.000 description 9
- 229920001971 elastomer Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
この考案は高架橋用の非排水型伸縮継手に関す
る。[Detailed description of the invention] <Industrial field of application> This invention relates to a non-drainage type expansion joint for elevated bridges.
〈従来の技術〉
従来の鋼製非排水型伸縮継手に於いては、フエ
ースプレート上面のフインガー遊間部にアスフア
ルトに代表される弾性シール材等を充填すること
により非排水型伸縮継手として多用されて来てい
るが、その充填作業上及び維持管理面において
種々考慮を払わなければならない煩雑さがある。
即ち、特性上の側からは、この弾性シール剤は充
填時には流動性のある液体でその後に化学反応の
結果、時間の経過と共に次第に弾性を有する固体
となる物質のため、流動性のシール剤の充填時
は、被充填剤を常に水平に据付ける必要があるこ
と。一方、作業完了後、実際に使用上の面から
は、自動車用道路橋梁のシール剤は、前述した如
く常温に於いてゴム状の弾性体であり、フエース
プレートの温度による線膨張・収縮に比例してフ
エースプレート間のフインガー遊間部の該シール
剤の体積は当然影響を受け、そのために充填物の
シール剤がフエースプレート表部にはみ出る事が
屡々である。路上にはみ出た充填物は車の通過時
にタイヤに付着し、漸次充填物が減少していくの
が常である。また一日の周期的温度変動及び季節
変動の繰り返しに加えて、雨水の浸入とそれによ
る凍結、凍結後の氷の融解膨張に伴うシール剤の
亀裂発生である。<Conventional technology> In conventional non-drainage type expansion joints made of steel, the finger gap on the top surface of the face plate is filled with an elastic sealing material such as asphalt, which is often used as a non-drainage type expansion joint. However, there are complications that must be taken into account in terms of filling operations and maintenance management.
In other words, from a property standpoint, this elastic sealant is a fluid liquid when filled, and then as a result of a chemical reaction, it gradually becomes an elastic solid over time. When filling, the material to be filled must always be installed horizontally. On the other hand, from the point of view of actual use after completion of work, the sealant for automobile road bridges is a rubber-like elastic body at room temperature, as mentioned above, and linear expansion and contraction due to the temperature of the face plate is proportional to the sealant for automobile road bridges. As a result, the volume of the sealant in the finger gap between the face plates is naturally affected, and as a result, the sealant in the filler often protrudes onto the surface of the face plate. The filler that protrudes onto the road usually adheres to the tires as cars pass by, and the filler gradually decreases. In addition to repeated daily and seasonal temperature fluctuations, there are also problems such as the infiltration of rainwater and the resulting freezing, and the occurrence of cracks in the sealant as the ice melts and expands after freezing.
以上のように、充填作業上に種々問題があるこ
とと、維持及び管理に多大の人手、時間、費用を
要するという難点があつた。 As mentioned above, there are various problems in the filling operation, and maintenance and management require a large amount of manpower, time, and cost.
一方、両先端が櫛形のジグザグ状の形状からな
り、これを相互に、伸縮可能に歯合させる橋梁用
伸縮継手は、実開昭48−100536号公報にて周知で
ある。しかし、この伸縮継手に対する止水手段
は、従来、満足すべきものは、みあたらなかつ
た。 On the other hand, an expansion joint for a bridge, which has a comb-shaped zigzag shape at both ends and meshes with each other in an expandable and contractible manner, is well known from Japanese Utility Model Application Publication No. 100536/1983. However, no satisfactory water-stopping means for this expansion joint has been found so far.
また、この橋梁用伸縮継手のシールに、エラス
トマー・シールを用いる先行技術は、特開昭48−
57434号公報や特公昭48−13658号公報に開示され
ている。 In addition, the prior art of using elastomer seals for the seals of expansion joints for bridges is
It is disclosed in Publication No. 57434 and Japanese Patent Publication No. 13658/1983.
しかしこれらの公報に開示されているエラスト
マー・シールは、床版遊間部の伸縮に対応すべ
く、内部に金属製のスプリング・エレメントを挿
入するものであり、高価で、かつ、製造上もエラ
ストマー・シール内にスプリング・エレメントを
挿入する手間がかかつてしまう。しかも、施工後
永年使用していると、金属製スプリング・エレメ
ントに錆による腐食が発生するおそれがあると共
に、スプリング・エレメントと接触し、その付勢
を受けているエラストマー・シールが変形した
り、破れたりするおそれがある。又、これらのシ
ールは、特公昭48−13658号の第１図等に示され
るように、単に床版の下部の張出部に支持されて
嵌入されているに止まり、そのメンテナンスに関
しては何らの配慮もなされていない。即ち、これ
らのシールの取替、補修を行おうとすれば、路上
か、或いは下方からシールを抜き止らなければな
らない。ところが、路上からの取り外しは、交通
を遮断しなければならないという問題がある。又
下方からの取り外しは、床版の張出部を破壊して
行わなければならないという問題がある。 However, the elastomer seals disclosed in these publications require a metal spring element inserted inside to accommodate the expansion and contraction of the floor slab gap, and are expensive and require elastomer seals in manufacturing. It takes time and effort to insert the spring element into the seal. Moreover, if used for many years after construction, there is a risk that the metal spring element will corrode due to rust, and the elastomer seal that comes into contact with the spring element and receives its bias may become deformed. There is a risk of it breaking. Furthermore, as shown in Figure 1 of Japanese Patent Publication No. 48-13658, these seals are merely supported and fitted into the lower protrusion of the floor slab, and no maintenance is required. No consideration was given. That is, in order to replace or repair these seals, the seals must be removed from the road or from below. However, there is a problem in that removing it from the road requires blocking traffic. Another problem is that removal from below requires destroying the overhanging portion of the floor slab.
〈問題点を解決するための手段〉
そこで、本考案は、対向する床版の遊間部に止
水材を挿入してなる橋梁用伸縮継手をさらに改良
し、上記の問題を解決する。<Means for Solving the Problems> Therefore, the present invention solves the above problems by further improving the expansion joint for bridges, which is formed by inserting a water stop material into the gap between opposing deck slabs.
本考案における止水材５は、プラスチツク製の
押出成形品からなる単一素材のものからなると共
に、その長手方向と直交する断面において上面が
Ｖ字型ｄで下面が逆Ｖ字型ｃをなし、この上下の
Ｖ字型ｄ，ｃを対応させると共にこのＶ字型ｄ，
ｃ相互の両側面１６，１７を垂直に連結した単位
区間部１０を、長手方向と直交する方向に複数個
連成してなる。 The water stop material 5 in the present invention is made of a single material made of extruded plastic, and has a V-shaped upper surface d and an inverted V-shaped lower surface c in a cross section perpendicular to its longitudinal direction. , the upper and lower V-shaped shapes d and c are made to correspond, and this V-shaped shape d,
(c) A plurality of unit sections 10 in which both side surfaces 16 and 17 are vertically connected are connected in a direction perpendicular to the longitudinal direction.
そして、この止水材５が、床版遊間部へ垂直方
向に一段ないし二段以上載置して圧縮嵌入されて
なると共に、床版遊間部の下部に取り外し可能に
設けられた少なくとも一対の支持体４Ａ，４Ｂに
て支持されてなる。 The water stop material 5 is compressed and fitted vertically in one or more stages into the floor slab gap, and at least a pair of supports removably provided at the bottom of the floor slab gap. It is supported by bodies 4A and 4B.
〈作用〉
止水材５は、床版遊間部に圧縮嵌入してなるた
め、この遊間部の長さが伸縮しても、対向する床
版によく密着し、シール作用を果たす。又、単位
区間部が複数個連設されているため、各単位区間
部の伸縮量の和が全体の伸縮量となり、全体に大
きな伸縮性をもたらすことができる。しかも、止
水材はプラスチツク製の押出成形品からなる単一
素材からなるため、従来の如きスプリング・エレ
メント挿入に関する問題は生じる余地がない。し
かも、この止水材は、床版遊間部の下部に着脱自
在に設けられた支持体にて支持されているが、こ
の支持体は着脱可能に設けられているため、支持
体を取り外すことにより、下方から止水材を抜き
取ることができる。<Function> Since the water stop material 5 is compressed and fitted into the gap between the floor slabs, even if the length of the gap expands or contracts, it adheres well to the opposing floor slabs and performs a sealing action. In addition, since a plurality of unit section sections are arranged in series, the sum of the amount of expansion and contraction of each unit section section becomes the total amount of expansion and contraction, and it is possible to bring about great elasticity to the whole. Moreover, since the water stopper is made of a single material made of extruded plastic, there is no possibility of problems associated with inserting a spring element as in the prior art. Moreover, this water-stopping material is supported by a support that is removably installed at the bottom of the floor slab clearance area. , the water stop material can be removed from below.
〈実施例〉
以下、本考案の一実施例を図面に基づいて詳述
する。<Example> Hereinafter, an example of the present invention will be described in detail based on the drawings.
第１図は、同じ単一素材からなる復元補強材を
含む一実施例の一部切欠斜視図で、実際にはこの
単体が連続したものからなり、断面が互いに対向
する辺の略中央部が内側にＶ字型に折曲し得る部
位ｃ，ｄを設けた筒状をなすプラスチツク製の単
位区間部１０を表わす図である。該単位区間部１
０は充分な反発弾性を有し、且つ矢印XX′に示さ
れる圧縮時には側面１６，１７を一定に保つ特性
を有する。 Fig. 1 is a partially cutaway perspective view of an embodiment including a restoration reinforcing material made of the same single material.Actually, this single piece is continuous, and the cross section is approximately at the center of the opposing sides. FIG. 2 is a diagram illustrating a cylindrical plastic unit section section 10 provided with sections c and d that can be bent into a V-shape on the inside. The unit section part 1
0 has sufficient rebound resilience and has the property of keeping the side surfaces 16 and 17 constant during compression as shown by arrow XX'.
第２図に示す如く止水材５は該単位区間部を
XX′方向（止水材５の長手方向と直交する方向）
に複数個一体的に連成せしめたものからなる。 As shown in FIG. 2, the water stop material 5 covers the unit section.
XX′ direction (direction perpendicular to the longitudinal direction of the water stop material 5)
It consists of a plurality of integrally coupled elements.
一方、適宜間隔をおいて対向した水平方向のフ
エースプレート１Ａ，１Ｂは鉛直方向のウエーブ
プレート７Ａ，７Ｂに、またウエーブプレートは
水平方向の下フランジプレート６Ａ，６Ｂに、そ
れぞれ固着させる。他方、少なくとも一対からな
る支持体たる支持板４Ａ，４Ｂは該ウエーブプレ
ート７Ａ，７Ｂよりそれぞれ直角方向に対向立設
させてボールトｂにて固着させる。従つて、ボー
ルトを緩めて外すことにより、支持板４Ａ，４Ｂ
を取り外すことができる。フエースプレート、ウ
エーブプレート、支持板とによつて形成された下
方の開口部分を有する床版遊間部９には、上記止
水材５をXX′方向の両側より挟圧々縮して嵌入さ
せて伸縮継手となす。この時止水材５はフエース
プレートの垂直方向に２段以上載置しても良い。 On the other hand, the horizontal face plates 1A and 1B facing each other at appropriate intervals are fixed to the vertical wave plates 7A and 7B, and the wave plates are respectively fixed to the horizontal lower flange plates 6A and 6B. On the other hand, at least one pair of support plates 4A and 4B, which are supports, are arranged perpendicularly opposite to each other from the wave plates 7A and 7B, and are fixed by a vault b. Therefore, by loosening and removing the vault, the support plates 4A, 4B can be removed.
can be removed. The water stop material 5 is compressed and fitted from both sides in the XX′ direction into the floor slab gap 9 having a lower opening formed by the face plate, wave plate, and support plate. Made with expansion joints. At this time, the water stop material 5 may be placed in two or more stages in the vertical direction of the face plate.
第３図イのL0は本考案による止水材５の工場
出荷時に於ける長手方向に直交する方向に沿う製
品長である。また第３図ロのL1は該止水材５の
最大遊間長を、L2は最短遊間長をそれぞれ表わ
す。伸縮装置の設置時を基準として、桁の温度上
昇による伸び量と温度下降による縮み量との絶体
値の合計が伸縮量であり、又桁の撓み等による変
位量や施工上の誤差等を考慮したものが余裕量
で、さらに部材の構造、型式による必要量があ
り、それら合計が遊間長である。 L0 in FIG. 3A is the product length of the waterproof material 5 according to the present invention in the direction perpendicular to the longitudinal direction at the time of shipment from the factory. Further, in FIG. 3B, L 1 represents the maximum clearance length of the water stop material 5, and L 2 represents the shortest clearance length. The amount of expansion and contraction is the sum of the absolute value of the amount of elongation due to temperature rise and the amount of contraction due to temperature drop of the girder, based on the time of installation of the expansion and contraction device, and the amount of displacement due to deflection of the girder, construction error, etc. What is taken into consideration is the allowance, and there is also the required amount depending on the structure and type of the member, and the total of these is the clearance length.
以上の構成から成る実施例の特徴及びそれに基
づく作用効果、利用について以下に詳述する。 The features of the embodiment having the above configuration, and the effects and uses based thereon will be described in detail below.
止水材は長手方向に直交する方向、即ち横方
向（XX′方向）に最大遊間長に合わせて圧縮嵌
合せしめているので、常時外方向（ウエーブプ
レート側）への反発弾性が働いている。このた
め該止水材とウエーブプレート間との接触面は
密着状態にあり、水密性が保持されている。 Since the water stop material is compressed and fitted in the direction perpendicular to the longitudinal direction, that is, in the lateral direction (XX' direction) according to the maximum clearance length, repulsion elasticity always works in the outward direction (toward the wave plate side). Therefore, the contact surface between the water stop material and the wave plate is in close contact, and watertightness is maintained.
次にフエースプレートの温度変化などによる
伸縮及び該フエースプレートの撓み変化などに
よる変位についての適応性については、フエー
スプレートの伸縮もしくは撓みに対して止水材
はその適応において充分になし得る。例えば伸
縮継手の設置箇所に於けるフエースプレートの
温度が上昇するに伴つて該フエースプレートの
車通過方向長は約40ｍであるのでその長さ・気
温、材質によつて定まる膨張（線膨張）が生ず
る。止水材５は第２図の如く、外向きに水平外
力（F1）が懸かつた状態のまま維持されてお
り、この時該止水材には床版遊間部９を挟み込
む圧縮応力F2と水平外力との差（F2−F1）に
相当する応力F3によつて均合う。止水材は前
述した如く、略中央が内側にＶ字型折曲し得る
部位を設けた単位区間部１０を複数個連成させ
たものである故、上記応力F3はおのおのの単
位区間部１０の略中央部に集中する。そして止
水材はその高さ方向（ZZ′方向）を一定状態に
維持しつつ空洞部３…内部方向へ略中央部が互
いに接近する。空洞部３…の容積は圧縮応力
F2に反比例する結果となる。よつて次の動き
が同時的もしくは逐次的に生起する。即ち順
に、フエースプレートの温度上昇又は撓み増
加、フエースプレートの線膨張、遊間長の減
少、フインガー遊間部１２の体積の減少、止水
材水平方向への反発弾性力の増加、止水材空洞
部容積の減少である。その結果、従来ゴム系等
のシール剤に顕著に見出される如く止水材自体
の物質の体積変化は生じ得ない。この事はフエ
ースプレートの伸縮に充分適応できる構造であ
ることを如実に表わすものである。 Next, regarding the adaptability to the expansion and contraction of the face plate due to changes in temperature and the displacement due to changes in the deflection of the face plate, the waterproof material can be sufficiently adapted to the expansion and contraction or deflection of the face plate. For example, as the temperature of the face plate at the location where the expansion joint is installed rises, the length of the face plate in the vehicle passing direction is approximately 40 m, so expansion (linear expansion) determined by the length, temperature, and material of the face plate increases. arise. As shown in FIG. 2, the water-stopping material 5 is maintained in a state where a horizontal external force (F 1 ) is applied outward, and at this time, the water-stopping material 5 is subjected to a compressive stress F that pinches the floor slab gap 9. 2 and the horizontal external force (F 2 - F 1 ). As mentioned above, the water stop material is made up of a plurality of connected unit sections 10 each having a portion that can be bent inward in a V-shape approximately at the center, so the stress F3 is applied to each unit section. It is concentrated in approximately the center of 10. Then, while maintaining the water stop material in a constant state in its height direction (ZZ' direction), substantially central portions of the water stop material approach each other toward the interior of the cavity 3. The volume of cavity 3 is compressive stress
The result is inversely proportional to F 2 . Therefore, the next movement occurs simultaneously or sequentially. That is, in order, the temperature rise or deflection increase of the face plate, the linear expansion of the face plate, the decrease in the clearance length, the decrease in the volume of the finger clearance part 12, the increase in the horizontal repulsion elastic force of the water stop material, and the hollow part of the water stop material. This is a decrease in volume. As a result, the volume of the water-stopping material itself cannot change, as is the case with conventional sealants such as rubber-based sealants. This clearly shows that the structure is sufficiently adaptable to expansion and contraction of the face plate.
第４図に示す如く、鋼製フインガージヨイン
ト型において、噛合する櫛形のフインガープレ
ート間のフインガー遊間部１２より流入する雨
水については、止水材とフエースプレート間と
によつて形成される略Ｖ字型溝の空間部２Ａ，
２Ｂ，２Ｃとによつて受水される結果、該空間
部は所謂樋作用を成し、該空間部２Ａ，２Ｂ，
２Ｃの端部にて処理し得る。この事は従来第５
図に示す如く流入する雨水対策としては水切り
１３及び排水樋１４を設けた従来例があり、こ
れらの排水装置に於いては土砂などが詰まつて
排水不可能となり、伸縮継手部から集中落水す
るようになるのが普通である。排水装置が詰ま
るのは、施工時にコンクリート、アスコン、材
料、その他の子片や層が落ち込んで排水装置を
詰まらせる場合や、施工後、自動車の走行に伴
つて該排水装置の清掃が困難なため排水の不良
となる場合が屡々である。然るに本考案に基づ
く止水材は床版遊間部９より抜き取る事ができ
る事から清掃が容易であり、又その際新しい止
水材との交換も可能である。特に支持板４ａ，
４ｂを取り付けたボールトｂを外して、支持板
を取りされば、止水材５は床版遊間部９より下
方へ抜き取ることができる。その際止水材５の
自重が有効に作用することは言うまでもない。 As shown in Fig. 4, in the steel finger joint type, rainwater flowing in from the finger gap 12 between the interlocking comb-shaped finger plates is formed by the water stop material and between the face plates. Approximately V-shaped groove space 2A,
As a result of water being received by the spaces 2B and 2C, the space functions as a gutter, and the spaces 2A, 2B,
It can be treated at the end of 2C. This is traditionally the fifth
As shown in the figure, there is a conventional example of installing a drainer 13 and a drainage gutter 14 as a countermeasure against inflowing rainwater, but these drainage devices become clogged with earth and sand, making it impossible to drain water, and water falls concentrated from the expansion joint. It is normal for this to happen. Drainage systems become clogged because concrete, ascon, materials, and other particles or layers fall down and clog the drainage system during construction, or because it is difficult to clean the drainage system after construction as cars drive. This often results in poor drainage. However, since the water stop material based on the present invention can be removed from the floor slab gap 9, it is easy to clean, and it is also possible to replace it with a new water stop material at that time. In particular, the support plate 4a,
If the vault b to which the bolt 4b is attached is removed and the support plate is removed, the water stop material 5 can be pulled out below the floor slab gap 9. Needless to say, the weight of the water stop material 5 acts effectively in this case.
橋面に鋼材が露出している構造で、自動車走
行路からの車輪の衝撃が鋼構造に集中荷重とし
て直接作用し、そのために床板コンクリート８
Ａ，８Ｂとフエースプレートとの定着が不充分
な場合に剥離・破損が屡々生ずる。本考案の橋
梁用伸縮継手の止水材には、常時ウエーブプレ
ートに対して水平外力がかかつているのでその
ために床版コンクリートとウエーブプレートと
の定着性を充分に増加させており、上記剥離・
破損に対する設計・施工上のウエーブプレート
への配慮を軽減させる役割を果たすものであ
る。 This is a structure in which steel is exposed on the bridge surface, and the impact of wheels from the automobile road acts directly on the steel structure as a concentrated load, which causes the concrete floor plate to deteriorate.
If the fixation between A and 8B and the face plate is insufficient, peeling and damage often occur. Since horizontal external force is constantly applied to the wave plate, the waterproof material for the bridge expansion joint of the present invention sufficiently increases the adhesion between the deck slab concrete and the wave plate, thereby preventing the above-mentioned peeling and
This serves to reduce the need for design and construction considerations for wave plates against damage.
止水材を複数段載置する事によつて、又筒状
の空洞部３中には該空洞部中に支持箇所ａ，
ｂ，ｃ，ｄによつて支えられた単位区間部と同
一素材からなる復元補強材１１を形成させる事
によつて前記に詳述した役割と効果を倍加さ
せうるものである。 By placing the waterproof material in multiple stages, support points a,
By forming the restoration reinforcing material 11 made of the same material as the unit sections supported by b, c, and d, the roles and effects detailed above can be doubled.
止水材としてプラスチツク製のものを使用し
ているので経済性の点から従来のゴム系シール
剤に比してその材料費は約1/5でり、又重車輛
の交通量の多い国道、地方道、高架道等に対し
頗る耐久性を発揮し得るものである。 Since plastic is used as a water-stopping material, the material cost is approximately 1/5 of that of conventional rubber-based sealants from an economic point of view. It can demonstrate outstanding durability on local roads, elevated roads, etc.
〈考案の効果〉
以上本考案は、止水材を床版遊間部に圧縮嵌入
しているので、常時横方向へ反発弾性が働き、対
向する床版によく密着し、水密性、シール性が保
持される。又、単位区間部が複数個一体に連設さ
れているため、各単位区間部の伸縮量の和が全体
の伸縮量となり、全体に大きな伸縮性をもたらす
ことができる。結果、対向する床版の遊間部の長
さが伸縮しても、これに充分対応でき、上記水密
性、シール性を保持し得る。しかも、上面のＶ字
型の溝は、所謂樋作用も果たし得るものである。<Effects of the invention> As described above, in this invention, the water-stopping material is compressed and fitted into the gap between the floor slabs, so that the repulsion elasticity always works in the lateral direction, and the material adheres well to the opposing floor slab, resulting in watertightness and sealing properties. Retained. Furthermore, since a plurality of unit sections are connected in series, the sum of the amount of expansion and contraction of each unit section becomes the total amount of expansion and contraction, and it is possible to provide great elasticity to the whole. As a result, even if the length of the gap between the opposing floor slabs expands or contracts, this can be fully accommodated, and the above-mentioned watertightness and sealability can be maintained. Moreover, the V-shaped groove on the top surface can also serve as a so-called gutter.
さらに、止水材はプラスチツク製の押出成形品
からなる単一素材からなるため、その製造コスト
を低く押さえ得ることはもちろん、従来のスプリ
ング・エレメント挿入に伴う問題はすべて解消さ
れうるものである。 Furthermore, since the waterproof material is made of a single material made of extruded plastic, not only can manufacturing costs be kept low, but all the problems associated with conventional spring element insertion can be eliminated.
又、止水材に対する支持体は着脱可能となつて
いるため、支持体を外すことにより、止水材を床
版遊間部より下方に抜き取ることができる。よつ
て、交通を遮断して路面上から取り外し作業を行
う必要はなく、しかも、止水材の自重が下方への
抜き取りを一層容易なものとすることができる。 Furthermore, since the support for the water stop material is removable, by removing the support, the water stop material can be pulled out below the floor slab gap. Therefore, there is no need to cut off traffic and perform the removal work from the road surface, and furthermore, the weight of the water stop material makes it easier to remove it downward.
よつて、本考案は永年にわたり確実な水密性・
シール性を保証すると共に、メンテナンスの容易
な橋梁用伸縮継手を提供し得たものである。 Therefore, this invention provides reliable watertightness and
This provides an expansion joint for bridges that guarantees sealing performance and is easy to maintain.
第１図は同じ単一素材からなる復元補強材を含
む本願考案に使用される単体の一例を示す一部切
欠斜視図、第２図は本願考案の空隙部に止水材を
二段に載置させた時の橋梁用伸縮継手の断面図、
第３図イ，ロ，ハは本願考案の止水材の異なつた
条件に於ける断面図、第４図は本願考案の鋼製フ
インガープレートの一部切欠平面図、第５図は排
水用樋を設けた従来例の橋梁用伸縮継手の断面
図、第６図は本願考案の載置前の橋梁用伸縮継手
である。
図中の符号：１Ａ，１Ｂ……フエースプレー
ト、２Ａ，２Ｂ，２Ｃ……空間部、３……空洞
部、４Ａ，４Ｂ……支持板、５……止水材、６
Ａ，６Ｂ……下フランジプレート、７Ａ，７Ｂ…
…ウエーブプレート、８Ａ，８Ｂ……床版コンク
リート、９……床版遊間部、１０……単位区間
部、１１……復元補強材、１２……フインガー遊
間部、１３……水切り、１４……排水樋、１５
Ａ，１５Ｂ……アスフアルト、６，１７……側
面。
Fig. 1 is a partially cutaway perspective view showing an example of a unit used in the present invention including a restoration reinforcing material made of the same single material, and Fig. 2 is a partially cutaway perspective view showing an example of a single unit used in the present invention including a restoration reinforcing material made of the same single material. Cross-sectional view of a bridge expansion joint when installed,
Figure 3 A, B, and C are cross-sectional views of the waterproof material of the present invention under different conditions, Figure 4 is a partially cutaway plan view of the steel finger plate of the present invention, and Figure 5 is for drainage. FIG. 6, which is a sectional view of a conventional bridge expansion joint provided with a gutter, shows the bridge expansion joint of the present invention before installation. Codes in the diagram: 1A, 1B...Face plate, 2A, 2B, 2C...Space, 3...Cavity, 4A, 4B...Support plate, 5...Water stop material, 6
A, 6B...Lower flange plate, 7A, 7B...
...Wave plate, 8A, 8B... Floor slab concrete, 9... Floor slab gap, 10... Unit section, 11... Restoration reinforcement material, 12... Finger gap, 13... Drainer, 14... Drainage gutter, 15
A, 15B... Asphalt, 6, 17... Side.
Claims (1)
橋梁用伸縮継手において、 止水材が、プラスチツク製の押出成形品からな
る単一素材のものからなると共に、その長手方向
と直交する断面において上面がＶ字型で下面が逆
Ｖ字型をなし、この上下のＶ字型を対応させると
共にこのＶ字型相互の両側面を垂直に連結した単
位区間部を、長手方向と直交する方向に複数個連
成してなり、この止水材が床版遊間部へ垂直方向
に一段ないし二段以上載置して圧縮嵌入されてな
ると共に、床版遊間部の下部に取り外し可能に設
けられた少なくとも一対の支持体にて支持されて
なることを特徴とする橋梁用伸縮継手。[Scope of Claim for Utility Model Registration] In an expansion joint for a bridge in which a water-stop material is inserted into the gap between opposing deck slabs, the water-stop material is made of a single material made of an extruded plastic product. In addition, in a cross section perpendicular to the longitudinal direction, the upper surface is V-shaped and the lower surface is inverted V-shaped, and the upper and lower V-shapes are made to correspond to each other, and both sides of the V-shape are connected perpendicularly to each other. A plurality of sections are connected in a direction perpendicular to the longitudinal direction, and this water-stopping material is placed vertically in one or two or more stages and compressed and fitted into the floor slab gap. 1. An expansion joint for a bridge, characterized in that the expansion joint is supported by at least a pair of supports removably provided at the lower part of the bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985083112U JPS6340487Y2 (en) | 1985-05-31 | 1985-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985083112U JPS6340487Y2 (en) | 1985-05-31 | 1985-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6150102U JPS6150102U (en) | 1986-04-04 |
| JPS6340487Y2 true JPS6340487Y2 (en) | 1988-10-24 |
Family
ID=30631442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985083112U Expired JPS6340487Y2 (en) | 1985-05-31 | 1985-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340487Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007270610A (en) * | 2006-03-09 | 2007-10-18 | Nitta Ind Corp | Water cut-off material for rail joint gap and bridge expansion device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4646137B2 (en) * | 2006-03-13 | 2011-03-09 | ニッタ株式会社 | Water stoppage material and bridge expansion and contraction device |
| JP2008069596A (en) * | 2006-09-15 | 2008-03-27 | Kyoryo Maintenance:Kk | Method of repairing leakage at expansion device of bridge |
| KR101078782B1 (en) * | 2011-03-08 | 2011-11-02 | 이형훈 | Expansion joint device for concrete structure using truss expansion joint support and installation method |
-
1985
- 1985-05-31 JP JP1985083112U patent/JPS6340487Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007270610A (en) * | 2006-03-09 | 2007-10-18 | Nitta Ind Corp | Water cut-off material for rail joint gap and bridge expansion device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6150102U (en) | 1986-04-04 |
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