JP5143539B2 - Joint water stop flexible joint - Google Patents

Joint water stop flexible joint Download PDF

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JP5143539B2
JP5143539B2 JP2007323638A JP2007323638A JP5143539B2 JP 5143539 B2 JP5143539 B2 JP 5143539B2 JP 2007323638 A JP2007323638 A JP 2007323638A JP 2007323638 A JP2007323638 A JP 2007323638A JP 5143539 B2 JP5143539 B2 JP 5143539B2
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joint
water
rubber member
cross
stopping
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JP2009144438A (en
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野 敬 司 洲
谷 誠 之 関
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Mutsubushi Rubber Co Ltd
Victaulic Co of Japan Ltd
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Mutsubushi Rubber Co Ltd
Victaulic Co of Japan Ltd
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Description

本発明は、水路、暗渠、貯水槽など、コンクリート構造物の目地止水可撓継手に関し、特に、目地が交差する部分で用いられる目地止水可撓継手に関する。   The present invention relates to a joint water-stopping flexible joint of a concrete structure such as a water channel, a culvert, and a water storage tank, and more particularly to a joint water-stopping flexible joint used at a portion where the joints intersect.

水路、暗渠、貯水槽などのコンクリート構造物では、隣り合うコンクリートブロックの接合部分には隙間のあいている目地が形成される。この目地には、止水のための継手が取り付けられることがある。   In concrete structures such as waterways, underdrains, and water storage tanks, joints with gaps are formed at the joints between adjacent concrete blocks. A joint for water stop may be attached to this joint.

近年では、この種のコンクリート構造物に耐震構造が取り入れられるようになっており、目地で地震の振動による変位を吸収する構造になっている。これに伴い、止水継手には、可撓性の止水部材が採用されている。   In recent years, seismic structures have been introduced into this type of concrete structure, and the structure absorbs displacement caused by earthquake vibration at joints. In connection with this, the flexible water stop member is employ | adopted for the water stop joint.

従来のこの種の可撓継手には、例えば、特許文献１に記載されているものがある。
この特許文献１の止水可撓継手は、コンクリート構造物に形成される目地が十字状または丁字状に交差する場合に、目地がいずれの方向に開いても追随して変形することによって止水性を維持することを目的とする継手である。 There exist some which were described in patent document 1, for example in this kind of conventional flexible joints.
This water-stopping flexible joint disclosed in Patent Document 1 is water-stopping when the joint formed in a concrete structure intersects in a cross shape or a letter shape, and deforms following the joint in any direction. It is a joint intended to maintain

この特許文献１の止水継手では、十字または丁字に交差する第１のシート部分と、第２のシート部分からなり、それぞれのシート部分の折り畳み部が連続するように一体的に接続されるようになっている。
特開２００１−２０３９５号公報 The waterproof joint of Patent Document 1 includes a first sheet portion and a second sheet portion that intersect with a cross or a letter, and are integrally connected so that the folded portions of the respective sheet portions are continuous. It has become.
JP 2001-20395 A

しかしながら、特許文献１のような止水継手では、交差する目地に合わせてシートを展開するために、別々の部材である第１のシート部分と第２のシート部分を折り畳み部が連続するように接続しなければならない。この場合、接続には、焼き付けや接着などにより接合しなければならないが、この作業が非常に手間とももに時間のかかる作業であり、さらには接合した部分が特定の方向の変位に弱いというように信頼性が高くないため、折り畳み部の伸縮により接合が破壊される可能性が高く、耐震性に対する信頼性に問題がある。   However, in the waterproof joint such as Patent Document 1, in order to develop the sheet in accordance with the intersecting joint, the folding part is continuous between the first sheet part and the second sheet part which are separate members. Must be connected. In this case, the connections must be joined by baking, bonding, etc., but this work is very time-consuming work, and the joined part is vulnerable to displacement in a specific direction. Therefore, there is a high possibility that the joint is broken due to expansion and contraction of the folded portion, and there is a problem in reliability with respect to earthquake resistance.

そこで、本発明の目的は、前記従来技術の有する問題点を解消し、十字形、Ｔ字形などに交差するコンクリート構造物の目地部を止水するために簡易に設置することができるとともに、シールの交差部で伸縮する部分の変位に対する追従性にすぐれ耐震強度の高い目地止水可撓継手を提供することにある。   Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and can be easily installed in order to stop the joint portion of a concrete structure intersecting with a cross shape, a T-shape, etc. It is an object of the present invention to provide a joint water-stopping flexible joint that has excellent followability to displacement of a portion that expands and contracts at a crossing portion and has high seismic strength.

また、本発明は、コンクリート構造物の接合部において、十字に交差する目地を止水する目地止水可撓継手であって、山と谷の連続する波形形状の横断面を有し、かつ止水対象である交差する目地部に対応する十字形の平面形状を有する一体成形された十字形の止水ゴム部材を有し、 前記十字形の止水ゴム部材を前記交差する目地部に配置し、前記目地部にそって四方に伸びる前記十字形の止水ゴム部材の側縁を、取付金具を介し所定のピッチで設けたアンカーボルトとナットにより固定し、前記十字形の止水ゴム部材が、波形状が一方向に走る４つの直線部と、各直線部の波形状が９０°方向を変えながら２方向に分かれてそれぞれ左右９０°隣の直線部に連続する十字交差部との一体構造を有することを特徴とするものである。 The present invention also relates to a joint water-stopping flexible joint that stops joints intersecting with a cross at a joint portion of a concrete structure, and has a corrugated transverse cross-section in which peaks and valleys are continuous. An integrally formed cruciform water-stopping rubber member having a cross-shaped planar shape corresponding to the intersecting joint portion that is a water object, and the cruciform water-stopping rubber member is disposed on the intersecting joint portion. The cross-shaped water-stop rubber member extending in four directions along the joint is fixed with anchor bolts and nuts provided at a predetermined pitch via mounting brackets, and the cross-shaped water-stop rubber member is , An integrated structure of four straight portions whose wave shape runs in one direction and a cross intersection portion in which the wave shape of each straight portion is divided into two directions while changing the 90 ° direction and continues to the straight portion adjacent to the left and right 90 ° respectively It is characterized by having .

さらに、本発明は、コンクリート構造物の接合部において、Ｔ字に交差する目地を止水する目地止水可撓継手であって、山と谷の連続する波形形状の横断面を有し、かつ止水対象である交差する目地部に対応するＴ字形の平面形状を有する一体成形されたＴ字形の止水ゴム部材を有し、前記Ｔ字形の止水ゴム部材を前記交差する目地部に配置し、前記目地部にそって３方に伸びる前記Ｔ字形の止水ゴム部材の側縁を、取付金具を介し所定のピッチで設けたアンカーボルトとナットにより固定し、前記Ｔ字形の止水ゴム部材は、波形状が一方向に走る３つの直線部と、波形状が９０°方向を変えながら２方向に分かれて連続する部分と波形状が直線的に延びる部分からなるＴ字交差部との一体構造を有することを特徴とするものである。 Furthermore, the present invention is a joint water-stopping flexible joint for water-stopping a joint that intersects a T-shape at a joint portion of a concrete structure, and has a corrugated transverse section with continuous peaks and valleys, and An integrally formed T-shaped water-stopping rubber member having a T-shaped planar shape corresponding to the intersecting joint part to be water-stopped is disposed, and the T-shaped water-stopping rubber member is disposed at the intersecting joint part. The side edges of the T-shaped water-stopping rubber member extending in three directions along the joint are fixed with anchor bolts and nuts provided at a predetermined pitch via mounting brackets, and the T-shaped water-stopping rubber is fixed. The member is composed of three straight portions in which the wave shape runs in one direction, a T-shaped intersection formed by a portion in which the wave shape is divided into two directions while changing the 90 ° direction and a portion in which the wave shape extends linearly. It has a monolithic structure .

本発明によれば、十字形、Ｔ字形などに交差するコンクリート構造物の目地部を止水するために簡易に設置することができるとともに、シールの交差部で伸縮する部分のどの方向への変位に対しても追従性にすぐれ、耐震強度を高めることができる。   According to the present invention, it can be easily installed to stop the joint portion of a concrete structure that intersects with a cross shape, T-shape, etc., and in which direction the portion of the seal that expands or contracts is displaced. It has excellent follow-up performance and can improve the earthquake resistance.

以下、本発明による目地止水可撓継手の一実施形態について、添付の図面を参照しながら説明する。
図１は、本実施形態による目地止水可撓継手が適用されるコンクリート構造物を示す。このコンクリート構造物は、水路を構成する構造物で、図１では４つのコンクリートブロック１０を寄せ合わせて構成されている。この場合、それぞれ隣接するコンクリートブロック１０同士の間には間隙のあいた目地１１が設けられている。参照番号１２は、この目地１１を止水する可撓継手の主要な構成要素である止水ゴム部材を示す。この止水ゴム部材１２を用いた可撓継手の断面は図２に示されている。 Hereinafter, an embodiment of a joint waterproof joint according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a concrete structure to which a joint water stop flexible joint according to this embodiment is applied. This concrete structure is a structure that constitutes a water channel. In FIG. 1, four concrete blocks 10 are brought together. In this case, a joint 11 having a gap is provided between the adjacent concrete blocks 10. Reference numeral 12 indicates a water stop rubber member which is a main component of the flexible joint that stops the joint 11. A cross section of a flexible joint using the water blocking rubber member 12 is shown in FIG.

目地止水可撓継手を取り付ける前のコンクリート構造物の目地は、図１に示すような十字に交差する目地１１が形成されている。本実施形態による目地止水可撓継手は、十字に交差する目地１１を止水するために、止水ゴム部材１２でシールするとともに、目地部の変位を吸収する構造の継手である。   As the joint of the concrete structure before attaching the joint water-stopping flexible joint, a joint 11 intersecting with a cross as shown in FIG. 1 is formed. The joint water stop flexible joint according to the present embodiment is a joint having a structure that seals the joint 11 intersecting the cross with the water stop rubber member 12 and absorbs the displacement of the joint part.

そこで、止水ゴム部材１２について説明する。
図１において、この止水ゴム部材１２の平面形状は、止水対象である目地１１が交差する十字形に対応しており、全体が褶曲した形状をもつ一体構造のゴム製カバーである。この止水ゴム１２の横断面は、山と谷の連続する波形形状である。 Therefore, the water stop rubber member 12 will be described.
In FIG. 1, the planar shape of the water-stopping rubber member 12 corresponds to a cross shape where the joints 11 to be water-stopped intersect, and is a rubber cover having an integral structure having a curved shape as a whole. The transverse cross section of the water-stopping rubber 12 has a waveform shape in which peaks and valleys are continuous.

このような十字形の止水ゴム部材１２では、４つの直線部１４と、中央の交差部１６とが一体構造になっている。各直線部１４では、波形状は長手方向に走る点で共通している。交差部１６では、各直線部１４の波形状は９０°方向を変えながら２方向に分かれてそれぞれ左右９０°隣の直線部１４に連続している。すなわち、各直線部１４の波形状を２条の山１８ａと３条の山１８ｂに２つのグループに分けてみてみると、それぞれ直線部１４では、波形状をなす２条の山１８ａと３条の山１８ｂは真っ直ぐに延びているが、交差部１６では、２条の山１８ａのグループと３条の山１８ｂのグループに分かれ、このうち、一方の山１８ａは、９０°左隣の直線部１４に連続し、他方の山１８ｂは右隣の直線部に連続するという関係にある。この関係は、どの直線部１４をとってみても同じである。このように波形形状が分かれているため、交差部１６の中央部は平坦な形状になっている。   In such a cross-shaped water-stopping rubber member 12, the four straight portions 14 and the central intersection 16 are integrated. In each linear part 14, the waveform is common in that it runs in the longitudinal direction. At the intersection 16, the wave shape of each straight line portion 14 is divided into two directions while changing the 90 ° direction, and is continuous to the straight line portions 14 adjacent to each other 90 ° to the left and right. That is, when the wave shape of each straight portion 14 is divided into two groups of two ridges 18a and three ridges 18b, the straight portions 14 each have two ridges 18a and three ridges forming a wave shape. The mountain 18b extends straight, but at the intersection 16, it is divided into a group of 2 ridges 18a and a group of 3 ridges 18b. 14 and the other peak 18b continues to the straight line on the right. This relationship is the same regardless of which straight line portion 14 is taken. Since the waveform shapes are divided in this way, the central portion of the intersecting portion 16 has a flat shape.

なお、止水ゴム部材１２の各直線部１４の両縁部は、ボルトで固定するための平坦な固定部１４ａになっており、この固定部１４ａには、ボルトを通す穴１９が形成されている。   Both edge portions of each linear portion 14 of the water-stopping rubber member 12 are flat fixing portions 14a for fixing with bolts, and holes 19 through which bolts are passed are formed in the fixing portions 14a. Yes.

次に、図２は、本実施形態による目地止水可撓継手の断面を示す。この図２に示されている断面は、直線部１４における横断面である。   Next, FIG. 2 shows a cross section of the joint waterproofing flexible joint according to the present embodiment. The cross section shown in FIG. 2 is a transverse cross section at the straight portion 14.

まず、目地１１を挟んだ両側のコンクリートブロック１０のコンクリート露出面に所定のピッチでアンカーボルト３０を埋め込むためのボルト孔３１が削岩機により穿孔される。穿孔した後、それぞれのボルト孔３１にはエアを吹きつけ、コンクリート破片や切粉を除去してから、接着材の入ったカプセルを挿入しておく。しかる後、各ボルト孔３１には、アンカーボルト３０を埋め込み、接着材を硬化養生させる。   First, bolt holes 31 for embedding anchor bolts 30 at a predetermined pitch are drilled by a rock drilling machine on the exposed concrete surfaces of the concrete blocks 10 on both sides of the joint 11. After drilling, air is blown into each bolt hole 31 to remove concrete fragments and chips, and a capsule containing an adhesive is inserted. Thereafter, the anchor bolt 30 is embedded in each bolt hole 31, and the adhesive is cured and cured.

次に、図２において、アンカーボルト３０の周囲でコンクリート表面の清掃を行っておく。この清掃範囲は、止水ゴム部材１２の固定部１４ａが押し付けられるシール面に相当している。この固定部１４ａは、取付板３７を載せてアンカーボルト３０に螺合するロックナット３２で締め付けるために、平坦かつ肉厚になっており、この固定部１４ａの裏面には、シール部を構成する４条の凸部３３が長手方向に形成されている。また、ボルト穴３１の外側には、Ｏリング３４が設けられている
そこで、止水ゴム部材１２を、目地１１が交差する部分を被覆するようにセットする。そして、止水ゴム部材１２の固定部１４ａのボルト穴３１にアンカーボルト３０を通してから、保護部材としてのカバーゴム３６を止水ゴム部材１２に被せるようにして覆う。このカバーゴム３６は、図３に示すように、止水ゴム部材１２の平面形状を一回り小さくした十字形のゴム板材である。 Next, in FIG. 2, the concrete surface is cleaned around the anchor bolt 30. This cleaning range corresponds to a seal surface against which the fixing portion 14a of the water blocking rubber member 12 is pressed. The fixing portion 14a is flat and thick in order to be fastened with a lock nut 32 on which the mounting plate 37 is placed and screwed into the anchor bolt 30, and a sealing portion is formed on the back surface of the fixing portion 14a. Four protrusions 33 are formed in the longitudinal direction. Further, an O-ring 34 is provided on the outer side of the bolt hole 31. Therefore, the waterproof rubber member 12 is set so as to cover a portion where the joint 11 intersects. Then, after the anchor bolt 30 is passed through the bolt hole 31 of the fixing portion 14a of the water-stopping rubber member 12, the cover rubber 36 as a protection member is covered so as to cover the water-stopping rubber member 12. As shown in FIG. 3, the cover rubber 36 is a cross-shaped rubber plate material in which the planar shape of the water blocking rubber member 12 is made slightly smaller.

その上で、アンカーボルト３０に座金３８を介してロックナット３２を締め付け、取付板３７で止水ゴム部材１２を固定することができる。   In addition, the lock nut 32 can be fastened to the anchor bolt 30 via the washer 38, and the water stop rubber member 12 can be fixed by the mounting plate 37.

以上のように構成される目地止水可撓継手によれば、十字形に交差する目地１１をシールする止水ゴム部材１２は、４つの直線部１６と、交差部１６との一体構造であるため、従来のように複数のシール部材を交差させるようにして組み付ける必要がなく取り付けが簡便であり、現場での施工性がよく、作業の効率が向上する。さらに、止水ゴム部材１２そのものがシームレスの一体構造であるために、シール性能の信頼性を高めることができる。   According to the joint water-stopping flexible joint configured as described above, the water-stopping rubber member 12 that seals the joint 11 that intersects the cross shape is an integrated structure of the four straight portions 16 and the crossing portion 16. Therefore, it is not necessary to assemble a plurality of seal members so as to cross each other as in the prior art, and the attachment is simple, the workability on site is good, and the work efficiency is improved. Further, since the waterproof rubber member 12 itself has a seamless integrated structure, the reliability of the sealing performance can be improved.

また、止水ゴム部材１２は、基本的に目地部を止水するシール材であるが、山、谷が交互に連続する波形形状を有しているので、地震の揺れに伴う目地幅の変動に追従して変形し、これを吸収する機能をもっている。   The water-stopping rubber member 12 is basically a sealing material for water-stopping the joint, but has a corrugated shape in which peaks and valleys are alternately continued, so that the joint width varies with the shaking of the earthquake. It has the function of following and deforming and absorbing this.

目地が交差している部分では、揺れの方向によって目地幅の変動がさまざまである。例えば、縦方向の目地の幅は変動するが横方向の目地の幅は変動しないとか、縦方向も横方向も変動する、というように揺れの方向によって変わってくる。これに対して、本実施形態のように、止水ゴム部材１２が一体構造の波形形状であれば、あらゆる方向の変位に対しても良好な追従性を確保することができる。しかも、交差部１６では、波形を構成する山、谷が２方向に分かれて延びるようにおり、交差部１６全体として、波形が対称になる構造になっているので、特定の方向に弱いというようなことがなくあらゆる方向の変位に対して追従性を確保することができる。   Where the joints intersect, the joint width varies depending on the direction of shaking. For example, the width of the joint in the vertical direction varies, but the width of the joint in the horizontal direction does not vary, or varies both in the vertical and horizontal directions. On the other hand, if the water-stop rubber member 12 has a monolithic corrugated shape as in this embodiment, good followability can be ensured even for displacement in any direction. Moreover, at the intersection 16, the peaks and valleys constituting the waveform are divided and extend in two directions, and the entire intersection 16 has a structure in which the waveform is symmetric, so that it is weak in a specific direction. Therefore, it is possible to ensure followability with respect to displacement in any direction.

なお、図４は、コンクリートブロック１０のコーナー部での取り付け構造を示す。
コーナー部の目地では、壁が直角に立ち上がっているので、止水ゴム部材１２の直線部１４の固定部１４ａを密着させることができないため、固定部１４ａのシールが十分に効かず隙間から漏水するおそれがある。 FIG. 4 shows an attachment structure at a corner portion of the concrete block 10.
At the corner joint, since the wall stands up at a right angle, the fixing portion 14a of the straight portion 14 of the water-stopping rubber member 12 cannot be brought into close contact, so that the seal of the fixing portion 14a does not sufficiently work and water leaks from the gap. There is a fear.

そこで、図４に示すようなコーナーゴム５０を用いることにより、コーナー部での止水を確実にすることができる。
この実施形態では、コーナーゴム５０は、凹曲面を有するＲ部が形成された部材である。押え金具５３にはＲ部に倣って湾曲したものが用いられる。このようなコーナーゴム５０をコーナー部に置くことにより、コーナー部の目地を確実に止水することができる。 Therefore, by using the corner rubber 50 as shown in FIG. 4, water stoppage at the corner can be ensured.
In this embodiment, the corner rubber 50 is a member in which an R portion having a concave curved surface is formed. The presser fitting 53 is curved in accordance with the R portion. By placing such a corner rubber 50 in the corner portion, the joint at the corner portion can be surely stopped.

次に、図５は、止水ゴム部材の他の実施形態を示す図である。この止水ゴム部材４０は、目地１１がＴ字形に交差する部分をシールする目地止水可撓継手に用いられる。   Next, FIG. 5 is a figure which shows other embodiment of a water stop rubber member. This water stop rubber member 40 is used for a joint water stop flexible joint that seals a portion where the joint 11 intersects in a T-shape.

この止水ゴム部材４０は、波形状が一方向に走る３つの直線部４１と、波形状が９０°方向を変えながら２方向に分かれて連続する部分と波形状が直線的に延びる部分からなるＴ字交差部４２との一体構造を有するゴム製の部材である。   This water stop rubber member 40 is composed of three straight portions 41 whose wave shape runs in one direction, a portion where the wave shape is divided into two directions while changing the direction of 90 °, and a portion where the wave shape extends linearly. This is a rubber member having an integral structure with the T-shaped intersection 42.

このようなＴ字形の止水ゴム部材４０を用いて、図２のように固定することにより、Ｔ字に交差する目地１１をシールすることができる。また、止水ゴム部材４０は、地震の揺れに伴う目地幅の変動に追従して変形し、これを吸収する機能は十字形のものと同様であり、あらゆる方向の変位に対して追従性を確保することができる。   By using such a T-shaped water blocking rubber member 40 and fixing as shown in FIG. 2, the joint 11 intersecting with the T-shape can be sealed. Further, the water stop rubber member 40 is deformed following the change in the joint width accompanying the shaking of the earthquake, and the function of absorbing this is the same as that of the cross shape, and has the ability to follow the displacement in all directions. Can be secured.

以上、本発明に係る目地止水可撓継手について、十字に目地が交差する部分、およびＴ字に目地が交差する部分をシールする実施形態を挙げて説明したが、本発明は、これらの実施形態以外にも、Ｙ字形に交差する部分などにも適用することが可能である。   As described above, the joint water-stopping flexible joint according to the present invention has been described with reference to the embodiment in which the portion where the joint intersects the cross and the portion where the joint intersects the T-shape are sealed. Besides the form, the present invention can also be applied to a portion that intersects the Y shape.

本発明の第１実施形態による目地補修継手に用いる止水ゴム部材を示す斜視図である。It is a perspective view which shows the water stop rubber member used for the joint repair joint by 1st Embodiment of this invention. 同目地補修継手の横断面図である。It is a cross-sectional view of a joint joint for joint repair. 本発明による目地補修継手の平面図である。It is a top view of the joint repair joint by this invention. 同目地補修継手のコーナー部を示す断面図である。It is sectional drawing which shows the corner part of the joint joint repair joint. 本発明の第２実施形態による目地補修継手に用いる止水ゴム部材を示す斜視図である。It is a perspective view which shows the waterproof rubber member used for the joint repair joint by 2nd Embodiment of this invention.

符号の説明Explanation of symbols

１０ コンクリートブロック
１２ 止水ゴム部材
１４ 直線部
１４ａ 固定部
１６ 交差部
３０ アンカーボルト
３２ ロックナット
３６ カバーゴム
３８ 座金
４０ 止水ゴム部材 DESCRIPTION OF SYMBOLS 10 Concrete block 12 Water-stop rubber member 14 Linear part 14a Fixing part 16 Crossing part 30 Anchor bolt 32 Lock nut 36 Cover rubber 38 Washer 40 Water-stop rubber member

Claims (2)

コンクリート構造物の接合部において、十字に交差する目地を止水する目地止水可撓継手であって、
山と谷の連続する波形形状の横断面を有し、かつ止水対象である交差する目地部に対応する十字形の平面形状を有する一体成形された十字形の止水ゴム部材を有し、
前記十字形の止水ゴム部材を前記交差する目地部に配置し、
前記目地部にそって四方に伸びる前記十字形の止水ゴム部材の側縁を、取付金具を介し所定のピッチで設けたアンカーボルトとナットにより固定し、
前記十字形の止水ゴム部材が、波形状が一方向に走る４つの直線部と、各直線部の波形状が９０°方向を変えながら２方向に分かれてそれぞれ左右９０°隣の直線部に連続する十字交差部との一体構造を有することを特徴とする目地止水可撓継手。 A joint joint water-stopping flexible joint that stops joints intersecting a cross at a joint of a concrete structure,
It has a cross-shaped water-stop rubber member integrally formed with a cross-shaped planar shape corresponding to the intersecting joint part that is a water-stop target, and has a corrugated transverse cross section of peaks and troughs,
The cross-shaped water-stop rubber member is disposed at the intersecting joint portion,
The side edges of the cross-shaped water-stopping rubber member extending in all directions along the joint are fixed with anchor bolts and nuts provided at a predetermined pitch via mounting brackets,
The cross-shaped water-stopping rubber member is divided into four straight portions whose wave shape runs in one direction, and the wave shape of each straight portion is divided into two directions while changing the 90 ° direction. A joint joint waterproof flexible joint characterized by having an integral structure with a continuous cross intersection . コンクリート構造物の接合部において、Ｔ字に交差する目地を止水する目地止水可撓継手であって、
山と谷の連続する波形形状の横断面を有し、かつ止水対象である交差する目地部に対応するＴ字形の平面形状を有する一体成形されたＴ字形の止水ゴム部材を有し、
前記Ｔ字形の止水ゴム部材を前記交差する目地部に配置し、
前記目地部にそって３方に伸びる前記Ｔ字形の止水ゴム部材の側縁を、取付金具を介し所定のピッチで設けたアンカーボルトとナットにより固定し、
前記Ｔ字形の止水ゴム部材は、波形状が一方向に走る３つの直線部と、波形状が９０°方向を変えながら２方向に分かれて連続する部分と波形状が直線的に延びる部分からなるＴ字交差部との一体構造を有することを特徴とする目地止水可撓継手。 A joint water-stopping flexible joint that stops a joint that intersects the T-shape at a joint of a concrete structure,
An integrally formed T-shaped water-stopping rubber member having a corrugated transverse cross-section of peaks and troughs and having a T-shaped planar shape corresponding to the intersecting joint part to be water-stopped;
The T-shaped water-stop rubber member is disposed at the intersecting joint portion,
The side edges of the T-shaped water-stopping rubber member extending in three directions along the joint are fixed with anchor bolts and nuts provided at a predetermined pitch via mounting brackets,
The T-shaped water-stopping rubber member is composed of three straight portions whose wave shape runs in one direction, a portion where the wave shape is divided into two directions while changing the direction of 90 °, and a portion where the wave shape extends linearly. A joint joint water-stopping flexible joint characterized by having an integral structure with a T-shaped intersection .
JP2007323638A 2007-12-14 2007-12-14 Joint water stop flexible joint Active JP5143539B2 (en)

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JP2014202258A (en) * 2013-04-03 2014-10-27 住友ゴム工業株式会社 Water cut-off structure for joint intersection
JP6054253B2 (en) * 2013-06-04 2016-12-27 日本ヴィクトリック株式会社 Expansion joints for concrete structures
JP6645893B2 (en) * 2016-03-31 2020-02-14 株式会社クボタケミックス Joint water stop structure
CN106758769A (en) * 2016-12-01 2017-05-31 中铁第四勘察设计院集团有限公司 A kind of steel construction tuyere seam waterproof construction
CN106592412B (en) * 2016-12-01 2018-05-15 中铁第四勘察设计院集团有限公司 A kind of double girder beam-ends splicing seams waterproof constructions of box-shaped
CN111173150A (en) * 2019-12-24 2020-05-19 深圳市宝豪市政工程有限公司 Waterproof connection structure of building movement joint
JP7313061B2 (en) * 2020-01-29 2023-07-24 西武ポリマ化成株式会社 Joint waterproof joint for structures
JP7508157B1 (en) 2024-02-20 2024-07-01 株式会社美和テック Construction method for earthquake-resistant flexible joints

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