JP3492612B2 - Water stop structure at the exit of bridge saddle - Google Patents
Water stop structure at the exit of bridge saddleInfo
- Publication number
- JP3492612B2 JP3492612B2 JP2000281135A JP2000281135A JP3492612B2 JP 3492612 B2 JP3492612 B2 JP 3492612B2 JP 2000281135 A JP2000281135 A JP 2000281135A JP 2000281135 A JP2000281135 A JP 2000281135A JP 3492612 B2 JP3492612 B2 JP 3492612B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pipe
- spacer
- plate
- tension
- 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
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- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、橋梁用サドル部に
おける止水構造と止水方法に関するものである。特に、
サドル部内に配置される各緊張材の隙間からグラウトが
漏れることを防止する止水構造と止水方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stop structure and a water stop method in a bridge saddle portion. In particular,
The present invention relates to a water stop structure and a water stop method for preventing grout from leaking from a gap between each tension member arranged in a saddle portion.
【０００２】[0002]
【従来の技術】一般に、エクストラドーズド橋などのサ
ドル部は、主塔内に埋設された鋼管内に複数本の緊張材
が貫通して配置され、鋼管と緊張材の間にグラウトが充
填された構造である。このサドル部では、鋼管の端部で
グラウトの漏れを防止する止水が必要となる。従来、こ
の止水は、ウェスまたは樹脂を用いて行っていた。すな
わち、鋼管の出口部で各緊張材の間あるいは緊張材と鋼
管との間にウェスを充填したり、樹脂を充填したりする
ことで止水を行っていた。2. Description of the Related Art Generally, in the saddle part of an extra-dosed bridge or the like, a plurality of tension members penetrate through a steel pipe buried in a main tower, and grout is filled between the steel pipe and the tension members. It has a different structure. In this saddle part, water stop is required to prevent the grout from leaking at the end of the steel pipe. Conventionally, this water stopping has been performed using a waste cloth or a resin. That is, at the exit of the steel pipe, water is stopped by filling a waste cloth between the tendons or between the tendons and the steel pipe, or by filling a resin.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記の止水技
術では、グラウト止めが確実でなく、施工性が悪
い、と言う２つの問題があった。However, the above-mentioned water stopping technique has two problems that the grout stop is not reliable and the workability is poor.
【０００４】サドル鋼管出口部は多数の緊張材が密集し
て出ており、緊張材間および緊張材と鋼管との隙間が非
常に狭く、この狭い隙間に止水するためのウェスや樹脂
を十分に充填することは極めて困難なためである。At the saddle steel pipe outlet, a large number of tendons are densely gathered, and the gaps between the tendons and between the tendons and the steel pipe are very small, and a waste cloth and resin for stopping water in this narrow gap are sufficient. This is because it is extremely difficult to fill in.
【０００５】従って、本発明の主目的は、サドルの出口
部で確実にグラウトの漏れを止めることができ、かつ施
工性に優れる止水構造と止水方法とを提供することにあ
る。Therefore, a main object of the present invention is to provide a water-stopping structure and a water-stopping method which can surely prevent the grout from leaking at the outlet of the saddle and which is excellent in workability.
【０００６】[0006]
【課題を解決するための手段】本発明は、弾性材の変形
による隙間の封止と樹脂の充填とを組み合わせることで
上記の目的を達成する。The present invention achieves the above object by combining the sealing of the gap by the deformation of the elastic material and the filling of the resin.
【０００７】すなわち、本発明止水構造は、管内に複数
本の緊張材が貫通して配置され、管と緊張材の間にグラ
ウトが充填される橋梁用サドルの出口部における止水構
造である。管の出口部には、各緊張材を所定の間隔で配
置するスペーサーが配置される。このスペーサから順次
外側に向かって留め板、弾性材および押え板を具える。
留め板と押え板との間で弾性材を圧縮し、変形させるこ
とで弾性材と緊張材との隙間を封止する。そして、留め
板には緊張材との間に樹脂の充填部を具え、この充填部
に樹脂が充填される。That is, the water-stop structure of the present invention is a water-stop structure at the exit of a bridge saddle in which a plurality of tension members penetrate through the pipe and grout is filled between the pipe and the tension members. . Spacers for arranging the tendons at predetermined intervals are arranged at the outlet of the pipe. From this spacer, a retaining plate, an elastic material, and a pressing plate are sequentially provided toward the outside.
The elastic material is compressed and deformed between the retaining plate and the pressing plate to seal the gap between the elastic material and the tension material. The fastening plate is provided with a resin filling portion between the tension member and the filling material, and the filling portion is filled with the resin.
【０００８】このように、本発明止水構造では弾性材の
変形による隙間の封止により留め板と緊張材との間から
樹脂が漏れることを防止し、さらに、留め板内に樹脂の
充填を行うことでスペーサと緊張材との隙間からグラウ
トが漏れることを防止して、確実にグラウトの漏れを防
止することができる。As described above, in the waterproof structure of the present invention, the resin is prevented from leaking from between the retaining plate and the tension member by sealing the gap due to the deformation of the elastic material, and further, the resin is filled in the retaining plate. By doing so, it is possible to prevent the grout from leaking through the gap between the spacer and the tension member, and to reliably prevent the grout from leaking.
【０００９】また、本発明止水方法は、管内に複数本の
緊張材が貫通して配置され、管と緊張材の間にグラウト
が充填される橋梁用サドルの出口部における止水方法で
ある。緊張材を管の内側と外側とに区画し、管の内側か
ら外側へのグラウトの漏れを樹脂の充填により抑制す
る。また、この樹脂は弾性材の変形を利用して封止され
る。Further, the water stopping method of the present invention is a water stopping method at the exit of a bridge saddle in which a plurality of tension members penetrate through the pipe, and grout is filled between the pipe and the tension members. . The tendon is divided into an inner side and an outer side of the pipe, and leakage of grout from the inner side to the outer side of the pipe is suppressed by filling the resin. Further, this resin is sealed by utilizing the deformation of the elastic material.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１は本発明止水構造を用いたエクストラドーズ
ド橋における主塔のサドル部の部分断面図である。図１
ではほぼ右半分しか示していないが、実際には、これと
ほぼ線対称の構造が図１の左側にも存在する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is a partial cross-sectional view of a saddle portion of a main tower in an extra dose bridge using the water blocking structure of the present invention. Figure 1
In FIG. 1, only the right half is shown, but in reality, there is a structure that is substantially line-symmetrical to it on the left side of FIG.
【００１１】（サドル部の概略構造）このサドル部は、
主塔を構成するコンクリート1内に高密度ポリエチレン
製の外管2が埋設され、外管2の外周には螺旋状の補強筋
3が配置され、外管2の内部には内管となる鋼管4が挿入
されている。外管2と鋼管4との間には内管スペーサ5が
介在されて、外管内での鋼管4の位置を保持している。
この鋼管4は、曲げを持って構成され、内部に複数本の
緊張材6が貫通されている。図１では、緊張材6は2本の
み例示し、他は省略している。鋼管4の両端部は、主塔
のコンクリート1から露出している。ここでは図１のリ
ングナット7から右側がコンクリートから露出している
部分である。破線は主塔の側面を示している。鋼管4の
両端部には止水構造が形成され、鋼管内と緊張材6との
間に形成される空間に充填されるグラウトの漏れを防止
する。緊張材6にはPC鋼ストランドを用いている。そし
て、主塔を貫通した緊張材6の両端部は、橋桁に定着具
を介して固定される（図示せず）。(Schematic Structure of Saddle Section) This saddle section is
The outer pipe 2 made of high-density polyethylene is embedded in the concrete 1 that composes the main tower, and the outer pipe 2 has a spiral reinforcing bar around its outer circumference.
3 is arranged, and a steel pipe 4 serving as an inner pipe is inserted inside the outer pipe 2. An inner pipe spacer 5 is interposed between the outer pipe 2 and the steel pipe 4 to hold the position of the steel pipe 4 inside the outer pipe.
The steel pipe 4 is configured to have a bend, and a plurality of tension members 6 are penetrated inside. In FIG. 1, only two tendons 6 are illustrated and the others are omitted. Both ends of the steel pipe 4 are exposed from the concrete 1 of the main tower. Here, the right side of the ring nut 7 in FIG. 1 is the part exposed from the concrete. The dashed line indicates the side of the main tower. A water blocking structure is formed at both ends of the steel pipe 4 to prevent leakage of grout filled in a space formed between the steel pipe and the tension member 6. PC steel strands are used for the tension member 6. Then, both ends of the tension member 6 penetrating the main tower are fixed to the bridge girder via fixing tools (not shown).
【００１２】（サドル出口部）サドルの出口部の拡大断
面図を図２に示す。外管2の外周にはサポートプレート1
0が装着され、このサポートプレート10には、鋼管4の外
周にねじ込まれたリングナット7がネジ止めされてい
る。サポートプレート10は外管2の外側にはめ込まれる
短筒部11と、短筒部11の一端にフランジ状に設けられた
プレート部12とを具える。鋼管4にはグラウトの注入パ
イプ15が接続され、この注入パイプ15が外管2を経て短
筒部11を貫通し、さらにプレート部12を貫通して外部に
引き出されている。そして、鋼管の出口部には、外側に
向かって順次スペーサ20、留め板30、弾性材50、押え板
60が設けられ、グラウトの止水構造を構成する。以下、
各構成要素毎に詳しく説明する。(Saddle Outlet) FIG. 2 is an enlarged sectional view of the saddle outlet. Support plate 1 on the outer circumference of outer tube 2
A ring nut 7 screwed onto the outer circumference of the steel pipe 4 is screwed onto the support plate 10. The support plate 10 includes a short tube portion 11 fitted on the outer side of the outer tube 2 and a plate portion 12 provided in a flange shape at one end of the short tube portion 11. A grout injection pipe 15 is connected to the steel pipe 4, and the injection pipe 15 passes through the outer pipe 2 to pass through the short tube portion 11 and further through the plate portion 12 to be drawn out to the outside. Then, at the outlet of the steel pipe, the spacer 20, the retaining plate 30, the elastic material 50, and the pressing plate are sequentially arranged toward the outside.
60 is provided and constitutes the water-proof structure of the grout. Less than,
Each constituent element will be described in detail.
【００１３】（スペーサ20）鋼管4の出口部には複数の
緊張材6を所定の間隔で保持するスペーサ20がはめ込ま
れている。このスペーサ20は、図３に示すように、鋼管
4の内径にほぼ対応する円柱状体で、軸方向に各緊張材6
の貫通孔21を具えている。また、スペーサ20の一端に
は、フランジ状に形成されて鋼管端部に当接することで
スペーサが鋼管内部に入り込むことを防止する止め部22
が形成されている。スペーサ20は緊張材6を所定の間隔
で保持できる構成であれば良く、緊張材6が挿入される
際の摩擦で摩耗し難い材質で構成されることが好まし
い。本例では、スペーサ20の材質を高密度ポリエチレン
とし、サイズを軸方向の長さ90mm、止め部の外径126m
m、止め部以外の個所の外径119mmとした。(Spacer 20) A spacer 20 for holding a plurality of tendons 6 at predetermined intervals is fitted in the outlet portion of the steel pipe 4. This spacer 20, as shown in FIG.
It is a cylindrical body that roughly corresponds to the inner diameter of 4 and each tension member 6 in the axial direction.
The through hole 21 is provided. In addition, one end of the spacer 20 is formed into a flange shape, and a stopper portion 22 for preventing the spacer from entering the inside of the steel pipe by contacting the end of the steel pipe.
Are formed. The spacer 20 may have any structure as long as it can hold the tendons 6 at predetermined intervals, and is preferably made of a material that is not easily worn by the friction when the tendons 6 are inserted. In this example, the spacer 20 is made of high density polyethylene, the size is 90 mm in the axial direction, and the outer diameter of the stopper is 126 m.
m, the outer diameter of the part other than the stop was 119 mm.
【００１４】（留め板30）このスペーサ20の外側には留
め板30が配置されている。留め板30は、図４に示すよう
に、一端側に筒状部31を、他端側に板状部32を有する円
盤状のものである。板状部には軸方向に緊張材の貫通孔
33を有し、筒状部31には径方向に貫通する樹脂の充填孔
34を有する。充填孔34は外周をほぼ４等分する位置に合
計４箇所設けられている。(Retaining Plate 30) A retaining plate 30 is arranged outside the spacer 20. As shown in FIG. 4, the retaining plate 30 is a disc-shaped member having a tubular portion 31 at one end and a plate portion 32 at the other end. The plate-shaped part has an axial through hole for the tension material.
The cylindrical portion 31 has a resin filling hole 33 that penetrates in the radial direction.
Have 34. The filling holes 34 are provided at a total of four positions at positions that divide the outer periphery into four substantially equal parts.
【００１５】留め板30の外径はほぼ鋼管4の外径に等し
く長手方向に一定しているが、筒状部の内径は一端側が
大きく、途中から段差部35を経て小さく構成されてい
る。鋼管端部への装着は、筒状部31がスペーサ20に対向
する向きとして行う。この装着により、段差部35にはス
ペーサの止め部22がはめ込まれ、スペーサ20と筒状部31
とで囲まれる空間が樹脂充填部となる（図２参照）。こ
の充填部には、後述するように樹脂40が充填される。The outer diameter of the retaining plate 30 is substantially equal to the outer diameter of the steel pipe 4 and is constant in the longitudinal direction, but the inner diameter of the tubular portion is large on one end side and is small through the step portion 35 midway. The attachment to the end of the steel pipe is performed so that the tubular portion 31 faces the spacer 20. By this mounting, the stopper portion 22 of the spacer is fitted into the step portion 35, and the spacer 20 and the tubular portion 31
The space surrounded by and becomes the resin filling portion (see FIG. 2). The filling portion is filled with the resin 40 as described later.
【００１６】さらに、留め板30の外周側には、軸方向に
貫通するボルト用孔36が合計6つ形成されている。この
ボルト用孔36は後述する締付機構のボルト70が貫通され
る孔である。Further, a total of six bolt holes 36 penetrating in the axial direction are formed on the outer peripheral side of the fastening plate 30. The bolt hole 36 is a hole through which a bolt 70 of a tightening mechanism described later is passed.
【００１７】本例では、留め板30の材質を高密度ポリエ
チレンとし、サイズを厚さ60mm、外径160mmとした。In this example, the material of the fastening plate 30 is high density polyethylene, the size is 60 mm, and the outer diameter is 160 mm.
【００１８】（弾性材50）留め板30の外側に弾性材50を
配置する。この弾性材50は、図５に示すように、緊張材
の貫通孔51を具える円盤状のものである。留め板30と後
述する押え板60との間に挟まれて圧縮され、変形するこ
とで弾性材50と緊張材6の間を封止して樹脂の漏れを抑
制する。弾性材50は適度に弾性変形し易く、かつ緊張材
挿入時の摩擦に対して摩耗し難い材質で構成することが
好ましい。通常のクロロプレンゴムやウレタンゴムでは
耐摩耗性の点で不充分なことが多い。本例では、弾性材
50の材質を緊張材を挿入する際の耐摩耗性に優れたハネ
ナイト(商品名)とし、そのサイズを厚さ30mm、外径129m
mとした。(Elastic material 50) The elastic material 50 is arranged outside the fastening plate 30. As shown in FIG. 5, the elastic member 50 is a disc-shaped member having a through hole 51 for a tension member. It is sandwiched between a retaining plate 30 and a pressing plate 60, which will be described later, and is compressed and deformed to seal between the elastic material 50 and the tension material 6 to suppress resin leakage. The elastic material 50 is preferably made of a material that is appropriately elastically deformed and is less likely to be worn by the friction when the tendon is inserted. Ordinary chloroprene rubber and urethane rubber are often insufficient in terms of wear resistance. In this example, elastic material
The material of 50 is Hanenite (product name), which has excellent wear resistance when inserting tension material, and its size is 30 mm in thickness and 129 m in outer diameter.
It was m.
【００１９】（押え板60）弾性材50の外側には押え板60
が配置される。この押え板60も、図６に示すように、緊
張材6の貫通孔61を有する円盤状のものである。押え板6
0の一端側には、弾性材50がはめ込まれる凹部62が形成
されている。(Presser plate 60) A presser plate 60 is provided outside the elastic material 50.
Are placed. As shown in FIG. 6, the holding plate 60 is also a disc-shaped member having through holes 61 for the tension members 6. Presser plate 6
A recess 62 into which the elastic material 50 is fitted is formed on one end side of 0.
【００２０】さらに、押え板60の外周側には、軸方向に
貫通するボルト用孔63が合計6つ形成されている。この
ボルト用孔63は後述する締付機構のボルト70が貫通され
る孔である。Further, a total of six bolt holes 63 penetrating in the axial direction are formed on the outer peripheral side of the holding plate 60. The bolt hole 63 is a hole through which a bolt 70 of a tightening mechanism described later is passed.
【００２１】本例では、押え板60のサイズを厚さ45mm、
外径160mm、材質を高密度ポリエチレンとした。In this example, the size of the pressing plate 60 is 45 mm in thickness,
The outer diameter is 160 mm and the material is high density polyethylene.
【００２２】（締付機構）弾性材50を圧縮変形させるた
めに締付機構を用いる。本例では、押え板60、留め板30
を順次貫通して鋼管4の開口部端面にねじ込まれるボル
ト70（図２参照）を用いる。すなわち、留め板30と押え
板60のボルト用孔36、63にボルト70を貫通し、このボル
ト70を締め付けることで押え板60をスペーサ側に押し付
け、留め板30との間に圧縮力を作用させる。この圧縮力
により弾性材50は変形され、弾性材50と緊張材6の間を
封止する。(Clamping Mechanism) A clamping mechanism is used to compressively deform the elastic material 50. In this example, the retaining plate 60 and the retaining plate 30
A bolt 70 (see FIG. 2) that sequentially penetrates through and is screwed into the end surface of the opening of the steel pipe 4 is used. That is, the bolt 70 is penetrated through the bolt holes 36 and 63 of the retaining plate 30 and the retaining plate 60, and the retaining plate 60 is pressed against the spacer side by tightening the bolt 70, and a compressive force is applied between the retaining plate 30 and the retaining plate 30. Let The elastic material 50 is deformed by this compressive force and seals between the elastic material 50 and the tension material 6.
【００２３】（樹脂40）樹脂充填部に充填する樹脂40
は、短時間で硬化する速効性のものが好ましい。樹脂の
充填により、留め板からのグラウトの漏れを確実に防止
する。この樹脂40は緊張材6とスペーサ20との隙間なら
びに留め板30と緊張材6との隙間に速やかに充填され、
かつ容易に流れ出ることのない程度の適度な粘性を有す
る樹脂が好ましい。本例では、粘度が25℃において50〜
90Pa・sのエポキシ系樹脂を用いた。(Resin 40) Resin 40 to be filled in the resin filling portion
Is preferably a fast-acting one that cures in a short time. The resin filling surely prevents the grout from leaking from the retaining plate. This resin 40 is promptly filled in the gap between the tension member 6 and the spacer 20 and the gap between the retaining plate 30 and the tension member 6,
A resin having an appropriate viscosity that does not easily flow out is preferable. In this example, the viscosity at 25 ℃ is 50 ~
90 Pa · s epoxy resin was used.
【００２４】（止水構造の組み立て方）上記止水構造の
組み立て方を説明する。
鋼管内に全緊張材を挿入完了後、スペーサ20、留め板
30、弾性材50、押え板60をスライドさせてサドル側に引
き寄せる。この引き寄せは、人力でも可能であるが、人
力によるスライドが困難な場合、レバーブロックを用い
ても良い。たとえば、押え板の外側に環状の引き込み治
具（図示せず）を配置し、引き込み治具とリングナット
7との間をレバーブロックを装着した鎖でつなぎ、レバ
ーブロックを操作することでスペーサ20、留め板30、弾
性材50、押え板60をリングナット側にスライドする。(Method of Assembling the Water-Stop Structure) The method of assembling the water-stop structure will be described. After inserting all the tension materials into the steel pipe, spacer 20, retaining plate
Slide 30, elastic material 50, and pressing plate 60 to draw them toward the saddle. This pulling can be done manually, but if it is difficult to slide manually, a lever block may be used. For example, place a ring-shaped pull-in jig (not shown) on the outside of the holding plate, and pull in the pull-in jig and the ring nut.
7 is connected with a chain attached with a lever block, and by operating the lever block, the spacer 20, the retaining plate 30, the elastic member 50, and the holding plate 60 are slid to the ring nut side.
【００２５】スペーサ20を鋼管内に差し込む。差し込
み難い場合は、緊張材6を若干持ち上げて行えば良い。The spacer 20 is inserted into the steel pipe. If it is difficult to insert it, the tension member 6 may be lifted slightly.
【００２６】さらにスペーサの外側に順次留め板、弾
性材、押え板が互いに接するように配置する。Further, a retaining plate, an elastic material and a pressing plate are sequentially arranged outside the spacer so as to be in contact with each other.
【００２７】押え板60および留め板30のボルト用孔6
3、36にボルト70を差し込み、ボルト70の先端を鋼管4の
端面にねじ込んで押え板60を締め付ける。ボルト頭部に
はばね座金や平座金を介在させることで、ボルト頭部が
押え板60に食い込んで締め付けが不十分にならないよう
にする。この締め付けにより、厚さが30mmの弾性材50が
15mm程度の厚さになるまで圧縮する。圧縮された弾性材
50は広がるように変形して、弾性材50と緊張材6の間を
封止する。Bolt holes 6 in the holding plate 60 and the retaining plate 30
Insert the bolt 70 into the screws 3 and 36, screw the tip of the bolt 70 into the end face of the steel pipe 4, and tighten the holding plate 60. By interposing a spring washer or a flat washer on the bolt head, the bolt head does not bite into the holding plate 60 and tightening is not insufficient. By this tightening, the elastic material 50 with a thickness of 30 mm
Compress to a thickness of about 15 mm. Compressed elastic material
The elastic member 50 is deformed so as to expand and seals between the elastic member 50 and the tension member 6.
【００２８】緊張材6にジャッキを装着して所定の圧
力まで緊張を行う。A jack is attached to the tension member 6 to tension the tension member 6 to a predetermined pressure.
【００２９】留め板の樹脂充填孔34から樹脂40を注入
する。このとき、４つある樹脂充填孔34のうち、最も下
部に位置する充填孔から樹脂を注入し、残りの３つの充
填孔からは樹脂40をオーバーフローさせることで、十分
に樹脂を充填させる。この作業により、留め板30とスペ
ーサ20とで囲まれる空間内および留め板30と緊張材6と
の隙間に樹脂40が充填される。Resin 40 is injected through the resin filling hole 34 of the fastening plate. At this time, the resin is injected from the lowest filling hole of the four resin filling holes 34, and the resin 40 overflows from the remaining three filling holes to sufficiently fill the resin. By this operation, the resin 40 is filled in the space surrounded by the retaining plate 30 and the spacer 20 and in the gap between the retaining plate 30 and the tension member 6.
【００３０】樹脂40の硬化後(注入後約24時間後)、注
入パイプ15からサドル鋼管内にグラウトを注入・充填す
る。After the resin 40 is cured (about 24 hours after the injection), grout is injected and filled from the injection pipe 15 into the saddle steel pipe.
【００３１】鋼管内にグラウトの注入を行う。この注
入は、サポートプレート10から露出する注入パイプ15を
通して行う。このグラウト注入により、サドル内で緊張
材6が滑動しないようにする。Grout is injected into the steel pipe. This injection is performed through the injection pipe 15 exposed from the support plate 10. This grout injection prevents the tendon 6 from sliding in the saddle.
【００３２】[0032]
【発明の効果】以上説明したように、本発明止水構造、
止水方法によれば、弾性材の変形による隙間の封止と樹
脂の充填とにより、施工性、特に施行時間が改善され、
確実にグラウト止めを行うことができる。As described above, the waterproof structure of the present invention,
According to the water stopping method, the workability, especially the working time is improved by sealing the gap and filling the resin by the deformation of the elastic material,
The grout can be surely stopped.
【図１】本発明止水構造を用いたエクストラドーズド橋
における主塔のサドル部の部分断面図である。FIG. 1 is a partial cross-sectional view of a saddle portion of a main tower in an extra-dosed bridge using a water blocking structure of the present invention.
【図２】本発明止水構造を用いたサドルの出口部の拡大
断面図である。FIG. 2 is an enlarged sectional view of an outlet portion of a saddle using the water blocking structure of the present invention.
【図３】（A）はスペーサの端面図、（B）はその縦断面
図である。FIG. 3A is an end view of the spacer, and FIG. 3B is a vertical sectional view thereof.
【図４】（A）は留め板の端面図、（B）はその縦断面図
である。FIG. 4 (A) is an end view of the fastening plate, and FIG. 4 (B) is a longitudinal sectional view thereof.
【図５】（A）は弾性材の端面図、（B）はその縦断面図
である。5A is an end view of the elastic material, and FIG. 5B is a longitudinal sectional view thereof.
【図６】（A）は押え板の端面図、（B）はその縦断面図
である。FIG. 6A is an end view of the presser plate, and FIG. 6B is a vertical sectional view thereof.
1 コンクリート 2 外管 3 補強筋 4 鋼管 5 内管スペーサ 6 緊張材 7 リングナット 10 サポートプレート 11 短筒部 12 プレート部 15 注入パイプ 20 スペーサ 21 貫通孔 22 止め部 30 留め板 31 筒状部 32 板状部 33 貫通孔 34 樹脂充填孔 35 段差部 36 ボルト用孔 40 樹脂 50 弾性材 51 貫通孔 60 押え板 61 貫通孔 62 凹部 63 ボルト用孔 70 ボルト 1 concrete 2 outer tube 3 reinforcement 4 steel pipe 5 Inner tube spacer 6 Tension material 7 ring nut 10 Support plate 11 Short section 12 Plate part 15 injection pipe 20 spacer 21 through holes 22 Stop 30 retaining plate 31 Cylindrical part 32 Plate 33 through hole 34 Resin filling hole 35 step 36 bolt hole 40 resin 50 elastic material 51 through hole 60 Presser plate 61 through hole 62 recess 63 bolt hole 70 volts
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−170306（ＪＰ，Ａ) 特開 平８−302904（ＪＰ，Ａ) 特開2002−88717（ＪＰ，Ａ) 特公 平２−37463（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) E01D 19/10 - 19/16 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-8-170306 (JP, A) JP-A-8-302904 (JP, A) JP-A-2002-88717 (JP, A) JP-B-2-37463 (JP, B2) (58) Fields investigated (Int.Cl. 7 , DB name) E01D 19/10-19/16
Claims (2)
れ、管と緊張材の間にグラウトが充填された橋梁用サド
ルの出口部における止水構造であって、 前記各緊張材を管の出口部に所定の間隔で配置するスペ
ーサーと、 スペーサの外側に配置されて緊張材との間に樹脂充填部
を形成する留め板と、 樹脂充填部に充填されて留め板と緊張材との隙間を埋め
る樹脂と、 押え板と、 留め板と押え板との間で圧縮されて緊張材との隙間を封
止する弾性材とを具えることを特徴とする橋梁用サドル
の出口部における止水構造。1. A water stop structure at the exit of a bridge saddle in which a plurality of tension members are arranged to penetrate through a pipe, and grout is filled between the pipe and the tension members. A spacer arranged at a predetermined interval at the outlet of the pipe, a retaining plate disposed outside the spacer to form a resin-filled portion between the spacer and the tension member, and a retaining plate and a tension member filled in the resin-filled portion. At the exit of the bridge saddle, characterized by including a resin that fills the gap between the holding plate and an elastic material that is compressed between the retaining plate and the pressing plate to seal the gap with the tension material. Water-stop structure.
れ、管と緊張材の間にグラウトが充填された橋梁用サド
ルの出口部における止水方法であって、 前記緊張材を管の内側と外側とに区画し、 管の内側から外側へのグラウトの漏れを樹脂の充填によ
り抑制し、 この樹脂を弾性材の変形を利用して封止することを特徴
とする橋梁用サドルの出口部における止水方法。2. A method of stopping water at an outlet portion of a bridge saddle in which a plurality of tension members penetrates through the pipe, and grout is filled between the pipe and the tension member. Of the bridge saddle, which is characterized by dividing the inside of the pipe into the outside and preventing the grout from the inside of the pipe to the outside by filling with resin and sealing this resin by utilizing the deformation of the elastic material. How to stop water at the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000281135A JP3492612B2 (en) | 2000-09-18 | 2000-09-18 | Water stop structure at the exit of bridge saddle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000281135A JP3492612B2 (en) | 2000-09-18 | 2000-09-18 | Water stop structure at the exit of bridge saddle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002088715A JP2002088715A (en) | 2002-03-27 |
| JP3492612B2 true JP3492612B2 (en) | 2004-02-03 |
Family
ID=18765838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000281135A Expired - Lifetime JP3492612B2 (en) | 2000-09-18 | 2000-09-18 | Water stop structure at the exit of bridge saddle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3492612B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007040001A (en) * | 2005-08-04 | 2007-02-15 | Sumitomo Denko Steel Wire Kk | Elastic body for water cut-off, water cut-off structure, and water cut-off method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4663563B2 (en) * | 2006-03-22 | 2011-04-06 | 独立行政法人鉄道建設・運輸施設整備支援機構 | Saddle structure for bridge |
| CN105672130A (en) * | 2016-03-17 | 2016-06-15 | 安徽省交通规划设计研究总院股份有限公司 | Cable division pipe and inhaul cable combined piece thereof |
-
2000
- 2000-09-18 JP JP2000281135A patent/JP3492612B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007040001A (en) * | 2005-08-04 | 2007-02-15 | Sumitomo Denko Steel Wire Kk | Elastic body for water cut-off, water cut-off structure, and water cut-off method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002088715A (en) | 2002-03-27 |
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