JP7431119B2 - joint structure - Google Patents

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JP7431119B2
JP7431119B2 JP2020119917A JP2020119917A JP7431119B2 JP 7431119 B2 JP7431119 B2 JP 7431119B2 JP 2020119917 A JP2020119917 A JP 2020119917A JP 2020119917 A JP2020119917 A JP 2020119917A JP 7431119 B2 JP7431119 B2 JP 7431119B2
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coupler
steel
steel material
joint structure
tapered
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JP2022016920A (en
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貴行 十川
拓也 岩本
慶吾 玉野
直樹 曽我部
陽兵 平
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Kajima Corp
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Description

本発明は、鋼材同士の継手構造に関する。 The present invention relates to a joint structure between steel materials.

鉄骨コンクリート造（SC造）における鋼材同士の継手構造として、鋼材同士の突合せ部を溶接する溶接継手が知られている。また、鋼材同士の突合せ部を跨ぐように継手板を配置し、この継手板と両鋼材とを高力ボルトなどで接合する摩擦接合継手も一般的である。 As a joint structure between steel members in steel frame concrete construction (SC construction), welded joints in which the butt portions of steel members are welded are known. Furthermore, a friction joint is also common, in which a joint plate is arranged so as to straddle the butt portion of the steel materials, and the joint plate and both steel materials are joined using high-strength bolts or the like.

さらに特許文献１には、鉄骨鉄筋コンクリート造（SRC造）の鉄骨同士の継手構造として、表面に突起を形成した鉄骨材の端部を、内面に突起を形成した筒状体の内部に挿入してコンクリート等を充填するものが開示されている。 Further, in Patent Document 1, as a joint structure between steel frames of a steel reinforced concrete structure (SRC structure), an end of a steel frame material with a protrusion formed on the surface is inserted into a cylindrical body with a protrusion formed on the inner surface. Disclosed is one that is filled with concrete or the like.

特許第4727091号Patent No. 4727091

しかしながら、溶接継手では熟練工による精度の高い溶接作業が要求され、摩擦接合接手では現場におけるボルト接合作業等が必要となり、現場作業にかかる手間が大きい。 However, welded joints require highly accurate welding work by skilled workers, and friction bonded joints require on-site bolt joining work, which requires a large amount of time and effort.

特許文献１の継手構造は、これらと比較して施工性が良いが、鉄骨材の引抜に対する抵抗性について考慮されておらず、比較的小さな力で鉄骨材が筒状体から抜け出す恐れがあった。 The joint structure of Patent Document 1 has better workability compared to these, but it does not take into account the resistance to pulling out of the steel frame material, and there is a risk that the steel frame material may slip out of the cylindrical body with a relatively small force. .

この他、継手構造としては、継手長をできるだけ短くするような工夫なども求められる。 In addition to this, the joint structure must be designed to shorten the length of the joint as much as possible.

本発明は前述した問題点に鑑みてなされたものであり、その目的は、現場作業を省力化でき、鋼材の引抜に対する抵抗性も高い継手構造等を提供することである。 The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a joint structure etc. that can save labor in on-site work and has high resistance to drawing of steel materials.

前述した目的を達成するための第１の発明は、形鋼の端部同士を接続した継手構造であって、筒状のカプラが、接続する両形鋼の端部を囲うように配置され、前記カプラ内に充填材が充填され、前記カプラが、前記形鋼の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、前記形鋼が、前記形鋼の先端に近付くに連れて拡幅するテーパ部を端部に有することを特徴とする継手構造である。
第２の発明は、形鋼の端部同士を接続した継手構造であって、一方の形鋼の端部に設けられた筒状のカプラが、他方の形鋼の端部を囲うように配置され、前記カプラ内に充填材が充填され、前記カプラが、前記他方の形鋼の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、前記他方の形鋼が、当該形鋼の先端に近付くに連れて拡幅するテーパ部を端部に有することを特徴とする継手構造である。
前記カプラの、前記カプラに挿入される形鋼の端部を囲う部分が、角錐台状であることが望ましい。 A first invention for achieving the above-mentioned object is a joint structure in which the ends of section steels are connected to each other, in which a cylindrical coupler is arranged so as to surround the ends of both section steels to be connected, A filler is filled in the coupler, and the coupler has an inner surface with a tapered surface that becomes wider as it approaches the tip of the section steel , or the section steel has a tapered surface that becomes wider as it approaches the tip of the section steel. This joint structure is characterized by having a tapered part at the end that widens as the width increases.
The second invention is a joint structure in which ends of shaped steel are connected to each other, and a cylindrical coupler provided at the end of one shaped steel is arranged so as to surround the end of the other shaped steel . and the coupler is filled with a filler material, and the coupler has an inner surface with a tapered surface that becomes wider as it approaches the tip of the other section steel , or the other section steel is connected to the other section steel . This joint structure is characterized by having a tapered part at the end that widens as it approaches the tip of the joint.
It is desirable that a portion of the coupler surrounding an end of a section steel inserted into the coupler has a truncated pyramid shape.

本発明では、筒状のカプラの内部に鋼材を配置して充填材を充填することにより、カプラを介して相互の鋼材の応力を伝達する継手構造を形成する。係る継手構造により、施工時の現場作業を省力化でき、狭隘な箇所でも鋼材同士を接続できる。また本発明では、カプラのテーパ面や鋼材のテーパ部により、鋼材の引抜力に対して鋼材とカプラの間で充填材を介した応力伝達がしやすくなり、鋼材の引抜に対する抵抗力が向上する。結果、テーパの無い場合に比べて継手長も短くすることができる。 In the present invention, by arranging steel materials inside a cylindrical coupler and filling it with a filler, a joint structure is formed that transmits stress between the steel materials through the coupler. Such a joint structure can save on-site work during construction, and can connect steel materials even in narrow spaces. In addition, in the present invention, the tapered surface of the coupler and the tapered portion of the steel material facilitate the transmission of stress between the steel material and the coupler via the filler material against the pulling force of the steel material, thereby improving the resistance to pulling out of the steel material. . As a result, the joint length can be made shorter than in the case without a taper.

前記継手構造において、前記テーパ面と前記テーパ部の双方が設けられることが望ましい。
これにより、鋼材に引抜力が作用した際に、鋼材のテーパ部から充填材を介してカプラのテーパ面へと確実に応力を伝達でき、鋼材がカプラから抜け出しにくくなる。 In the joint structure, it is desirable that both the tapered surface and the tapered portion be provided.
Thereby, when a pulling force is applied to the steel material, stress can be reliably transmitted from the tapered portion of the steel material to the tapered surface of the coupler via the filler, making it difficult for the steel material to come off from the coupler.

前記カプラが前記テーパ面を有し、前記テーパ面に、前記充填材との付着性を向上させるための凹凸が形成されることも望ましい。
これにより、充填材の付着性を向上させて継手長を短くすることができる。 It is also desirable that the coupler has the tapered surface, and that the tapered surface is provided with unevenness for improving adhesion to the filler .
Thereby, the adhesion of the filler can be improved and the joint length can be shortened.

前記カプラの開口端が、前記カプラに挿入される形鋼に設けた閉塞板で閉塞され、前記閉塞板は前記カプラの端部に当接するように配置されることも望ましい。
第３の発明は、鋼材の端部同士を接続した継手構造であって、筒状のカプラが、接続する両鋼材の端部を囲うように配置され、前記カプラ内に充填材が充填され、前記カプラが、前記鋼材の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、前記鋼材が、前記鋼材の先端に近付くに連れて拡幅するテーパ部を端部に有し、前記カプラの開口端が、前記カプラに挿入される鋼材に設けた閉塞板で閉塞され、前記閉塞板は、前記カプラに挿入される鋼材の位置決めに用いる突出部を有することを特徴とする継手構造である。
第４の発明は、鋼材の端部同士を接続した継手構造であって、一方の鋼材の端部に設けられた筒状のカプラが、他方の鋼材の端部を囲うように配置され、前記カプラ内に充填材が充填され、前記カプラが、前記他方の鋼材の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、前記他方の鋼材が、当該鋼材の先端に近付くに連れて拡幅するテーパ部を端部に有し、前記カプラの開口端が、前記カプラに挿入される鋼材に設けた閉塞板で閉塞され、前記閉塞板は、前記カプラに挿入される鋼材の位置決めに用いる突出部を有することを特徴とする継手構造である。
閉塞板により、カプラからの充填材の漏れ出しを防止でき、且つ鋼材のカプラへの挿入長の管理も容易になる。また閉塞板に位置決め用の突出部を設けることで、カプラに挿入する鋼材の位置を容易に決定することができ、鋼材の位置ずれが防止される。 It is also desirable that the open end of the coupler be closed by a closing plate provided on a section steel inserted into the coupler , and that the closing plate be arranged so as to come into contact with the end of the coupler .
A third invention is a joint structure in which ends of steel materials are connected to each other, wherein a cylindrical coupler is arranged so as to surround the ends of both steel materials to be connected, and a filler is filled in the coupler, The coupler has a tapered surface on its inner surface that widens as it approaches the tip of the steel material, or the steel material has a tapered portion on its end that widens as it approaches the tip of the steel material, and A joint structure characterized in that an open end of the coupler is closed by a closing plate provided on a steel material inserted into the coupler, and the closing plate has a protrusion used for positioning the steel material inserted into the coupler. It is .
A fourth invention is a joint structure in which ends of steel materials are connected to each other, wherein a cylindrical coupler provided at the end of one steel material is arranged so as to surround the end of the other steel material, A filler is filled in the coupler, and the coupler has an inner surface with a tapered surface that widens as it approaches the tip of the other steel material, or the other steel material increases as it approaches the tip of the steel material. The opening end of the coupler is closed by a closing plate provided on a steel material inserted into the coupler, and the closing plate is used for positioning the steel material inserted into the coupler. This is a joint structure characterized by having a protrusion for use.
The closing plate prevents the filler from leaking out of the coupler, and also facilitates control of the insertion length of the steel material into the coupler. Further, by providing the protrusion for positioning on the closing plate, the position of the steel material to be inserted into the coupler can be easily determined, and displacement of the steel material can be prevented.

前記カプラの側面に、鋼材を前記カプラに挿入するための開口部が設けられることも望ましい。
これにより、鋼材の端部をカプラの側方からカプラ内に挿入することができる。 It is also desirable that an opening is provided in the side surface of the coupler for inserting a steel material into the coupler.
This allows the end of the steel material to be inserted into the coupler from the side of the coupler.

本発明によれば、現場作業を省力化でき、鋼材の引抜に対する抵抗性も高い継手構造等を提供することができる。 According to the present invention, it is possible to provide a joint structure and the like that can save labor in on-site work and have high resistance to drawing of steel materials.

継手構造１０を示す図。FIG. 1 is a diagram showing a joint structure 10. 鋼材１の端部同士の接続方法を示す図。The figure which shows the connection method of the ends of the steel material 1. 突起１４’、スタッド１５、および孔あき鋼板１６を示す図。FIG. 7 is a diagram showing a protrusion 14', a stud 15, and a perforated steel plate 16. 継手構造１０ａ、１０ａ’を示す図。The figure which shows joint structure 10a, 10a'. 継手構造１０ｂ、１０ｂ’、１０ｂ”を示す図。A diagram showing joint structures 10b, 10b', 10b''. 継手構造１０ｃを示す図。A diagram showing a joint structure 10c. 継手構造１０ｄを示す図。A diagram showing a joint structure 10d. 継手構造１０ｅを示す図。A diagram showing a joint structure 10e. 鋼材１の端部同士の接続方法を示す図。The figure which shows the connection method of the ends of the steel material 1. 継手構造１０ｅ’を示す図。A diagram showing a joint structure 10e'.

以下、図面に基づいて本発明の好適な実施形態について詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

[第１の実施形態]
図１は、本発明の第１の実施形態に係る継手構造１０を示す図である。この継手構造１０は、鉄骨コンクリート造(SC造)の構造物において、鋼材１の端部同士をカプラ２により接続するものである。ただし構造形式が鉄骨コンクリート造に限られることはない。 [First embodiment]
FIG. 1 is a diagram showing a joint structure 10 according to a first embodiment of the present invention. This joint structure 10 connects the ends of steel materials 1 to each other using couplers 2 in a steel-framed concrete (SC) structure. However, the structure type is not limited to steel frame concrete construction.

本実施形態の鋼材１は、ウェブ１２の両側にフランジ１１を設けたH形鋼である。図１（ａ）は継手構造１０についてウェブ１２に平行な断面を示した図、図１（ｂ）はフランジ１１およびウェブ１２に直交する断面を示した図、図１（ｃ）は継手構造１０の側面図である。図１（ａ）は図１（ｂ）の線Ｂ－Ｂによる断面であり、図１（ｂ）は図１（ａ）の線Ａ－Ａによる断面である。また図１（ｃ）は図１（ｂ）の矢印Ｃに示す方向から継手構造１０を見た図である。 The steel material 1 of this embodiment is an H-beam steel having flanges 11 on both sides of a web 12. 1(a) is a diagram showing a cross section of the joint structure 10 parallel to the web 12, FIG. 1(b) is a diagram showing a cross section orthogonal to the flange 11 and the web 12, and FIG. 1(c) is a diagram showing the cross section of the joint structure 10. FIG. 1(a) is a cross section along line BB in FIG. 1(b), and FIG. 1(b) is a cross section along line AA in FIG. 1(a). Moreover, FIG. 1(c) is a diagram of the joint structure 10 viewed from the direction shown by arrow C in FIG. 1(b).

両鋼材１の端部では、フランジ１１にテーパ部１３が設けられる。テーパ部１３は、鋼材１の先端に近付くに連れて直線状に拡幅する。テーパ部１３は鋼板などを用いて形成されるが、テーパ部１３の材料、構成等が特に限定されることはない。 At the ends of both steel materials 1, the flanges 11 are provided with tapered portions 13. The tapered portion 13 increases in width linearly as it approaches the tip of the steel material 1. Although the tapered portion 13 is formed using a steel plate or the like, the material, structure, etc. of the tapered portion 13 are not particularly limited.

テーパ部１３の外面には、突起１４が設けられる。突起１４は、ウェブ１２と直交する方向（図１（ａ）の紙面法線方向、図１（ｂ）の上下方向に対応する）に延伸する。突起１４は鉄筋や鋼材等を用いて形成しても良く、テーパ部１３の外面を加工することで形成しても良い。これによりテーパ部１３の外面に凹凸が形成される。 A protrusion 14 is provided on the outer surface of the tapered portion 13 . The protrusion 14 extends in a direction perpendicular to the web 12 (corresponding to the direction normal to the plane of the paper in FIG. 1(a) and the vertical direction in FIG. 1(b)). The protrusions 14 may be formed using reinforcing bars, steel materials, or the like, or may be formed by processing the outer surface of the tapered portion 13. As a result, irregularities are formed on the outer surface of the tapered portion 13.

カプラ２は、両鋼材１の端部を囲うように配置される。カプラ２は、一対の角錐台状の鋼管２１を、面積の大きい方の端面同士で接合して筒状に形成される。各鋼管２１の面積の小さい方の端面は、鋼材１を挿入するカプラ２の開口端となる。 The coupler 2 is arranged so as to surround the ends of both steel materials 1. The coupler 2 is formed into a cylindrical shape by joining a pair of truncated pyramid-shaped steel pipes 21 at their larger end faces. The smaller end face of each steel pipe 21 becomes the open end of the coupler 2 into which the steel material 1 is inserted.

カプラ２を構成する一方の鋼管２１は、接続される一方の鋼材１の端部の周囲に配置され、他方の鋼管２１は、他方の鋼材１の端部の周囲に配置される。各鋼管２１はテーパ面を内面に有し、テーパ面は鋼材１の先端に近付くに連れて拡幅する。各鋼管２１のテーパ面の傾斜は、各鋼管２１内に位置する鋼材１のテーパ部１３の傾斜と平行となるように定められる。テーパ面やテーパ部１３の傾斜角は特に限定されない。 One steel pipe 21 constituting the coupler 2 is arranged around the end of one of the steel materials 1 to be connected, and the other steel pipe 21 is arranged around the end of the other steel material 1. Each steel pipe 21 has a tapered surface on its inner surface, and the tapered surface becomes wider as it approaches the tip of the steel material 1. The slope of the tapered surface of each steel pipe 21 is determined to be parallel to the slope of the tapered portion 13 of the steel material 1 located inside each steel pipe 21. The tapered surface and the inclination angle of the tapered portion 13 are not particularly limited.

各鋼管２１のテーパ面にも、テーパ部１３と同様に突起２３が設けられ、これにより凹凸が形成される。突起２３は、テーパ部１３の突起１４と平行な方向に延伸する。突起２３は鉄筋や鋼材等を用いて形成しても良いし、鋼管２１の内面を加工することで形成しても良い。 The tapered surface of each steel pipe 21 is also provided with protrusions 23 similarly to the tapered portion 13, thereby forming irregularities. The protrusion 23 extends in a direction parallel to the protrusion 14 of the tapered portion 13. The projections 23 may be formed using reinforcing bars, steel materials, or the like, or may be formed by processing the inner surface of the steel pipe 21.

カプラ２内には充填材３が充填される。充填材３には、セメント系材料や樹脂系材料などの硬化材が用いられる。硬化材はカプラ２内への充填性と硬化後の強度等を考慮して定められ、例えばセメント系材料の場合、通常のコンクリート、モルタル、グラウト材等の他、継手長を低減するために高強度コンクリートや膨張コンクリート、繊維補強コンクリートを使用してもよい。充填材３として可塑性を有する材料を用いることで、現場での充填作業時におけるダレや漏れ対策の処置を省力化することもできる。 A filler 3 is filled into the coupler 2 . For the filler 3, a hardening material such as a cement material or a resin material is used. The hardening material is determined by taking into account the ability to fill the coupler 2 and the strength after hardening. For example, in the case of cement-based materials, in addition to ordinary concrete, mortar, grout, etc., hardening materials are used to reduce the joint length. Strength concrete, expanded concrete, or fiber-reinforced concrete may be used. By using a material having plasticity as the filler 3, it is also possible to save labor in taking measures against sagging and leakage during on-site filling work.

鋼材１の端部同士の接続時には、図２に示すように、一方の鋼材１（図２の下側の鋼材１）の端部をカプラ２に挿入して一方の鋼管２１内に配置した状態で、矢印ａに示すように他方の鋼材１の端部をカプラ２に挿入して他方の鋼管２１内に配置する。そして、図１（ａ）に示すように両鋼材１の先端同士を突合せ、充填材３をカプラ２内に充填することで継手構造１０が形成される。一方の鋼材１に事前にカプラ２を取付けておくことで、その後の作業が他方の鋼材１の挿入と充填材３の充填のみとなり、継手構造１０を容易に形成できる。 When connecting the ends of the steel materials 1, as shown in FIG. 2, the end of one of the steel materials 1 (lower steel material 1 in FIG. 2) is inserted into the coupler 2 and placed inside one of the steel pipes 21. Then, as shown by arrow a, the end of the other steel material 1 is inserted into the coupler 2 and placed inside the other steel pipe 21. Then, as shown in FIG. 1(a), the joint structure 10 is formed by butting the ends of both steel materials 1 and filling the coupler 2 with the filler 3. By attaching the coupler 2 to one of the steel materials 1 in advance, the subsequent work is only the insertion of the other steel material 1 and the filling of the filler material 3, and the joint structure 10 can be easily formed.

以上説明したように、本実施形態では、筒状のカプラ２の内部に鋼材１を配置して充填材３を充填することにより、カプラ２を介して相互の鋼材１の応力を伝達する継手構造１０を形成する。係る継手構造１０により、溶接作業などの煩雑な作業無しに鋼材１の端部同士が一体化されるので、継手構造１０を施工する際の現場作業を省力化でき、狭隘な箇所でも鋼材１の端部同士を接続できる。 As explained above, in this embodiment, the steel material 1 is arranged inside the cylindrical coupler 2 and the filler material 3 is filled, so that the joint structure transmits the stress of the steel materials 1 to each other via the coupler 2. form 10. With such a joint structure 10, the ends of the steel material 1 can be integrated without complicated work such as welding, so the on-site work when constructing the joint structure 10 can be saved, and even in narrow places, the steel material 1 can be integrated. The ends can be connected together.

また、カプラ２のテーパ面と鋼材１の端部のテーパ部１３により、鋼材１の引抜力に対して鋼材１とカプラ２の間で充填材３を介した応力伝達がしやすくなり、鋼材１の引抜に対する抵抗力が向上する。結果、テーパの無い場合に比べて継手長も短くすることができる。特に本実施形態では、カプラ２のテーパ面と鋼材１の端部のテーパ部１３が平行に傾斜するので、鋼材１に引抜力が作用した時に、鋼材１のテーパ部１３から充填材３を介してカプラ２のテーパ面へと確実に応力を伝達でき、鋼材１がカプラ２から抜け出しにくくなる。なお、カプラ２のテーパ面と鋼材１の端部のテーパ部１３の傾斜が若干異なっており、平行状態から多少ずれていても、同様の効果を得ることはできる。 Moreover, the tapered surface of the coupler 2 and the tapered part 13 at the end of the steel material 1 facilitate stress transmission between the steel material 1 and the coupler 2 via the filler material 3 against the pulling force of the steel material 1. The resistance to pulling out is improved. As a result, the joint length can be made shorter than in the case without a taper. In particular, in this embodiment, since the tapered surface of the coupler 2 and the tapered part 13 at the end of the steel material 1 are inclined in parallel, when a pulling force is applied to the steel material 1, the tapered part 13 of the steel material 1 is removed through the filler material 3. This allows stress to be reliably transmitted to the tapered surface of the coupler 2, making it difficult for the steel material 1 to slip out of the coupler 2. Note that even if the taper surface of the coupler 2 and the taper portion 13 at the end of the steel material 1 have slightly different inclinations and are slightly deviated from the parallel state, the same effect can be obtained.

さらに本実施形態では、鋼材１のテーパ部１３とカプラ２のテーパ面に突起１４、２３による凹凸を形成することにより、鋼材１およびカプラ２と充填材３との付着性を向上させて継手長を短くすることができる。 Furthermore, in this embodiment, by forming unevenness by the projections 14 and 23 on the tapered part 13 of the steel material 1 and the tapered surface of the coupler 2, the adhesion between the steel material 1 and the coupler 2 and the filler material 3 is improved and the joint length is increased. can be shortened.

しかしながら、本発明は上記の実施形態に限らない。例えば図３（ａ）に示すように、鋼材１のテーパ部１３の外面に、突出高さの異なる複数の突起１４’を、突出端が鋼材１の軸方向に沿った波状となるように設けることで、凹凸を形成することも可能である。これにより充填材３との付着性を向上させて継手長を短くすることができる。 However, the present invention is not limited to the above embodiments. For example, as shown in FIG. 3(a), a plurality of protrusions 14' having different protruding heights are provided on the outer surface of the tapered portion 13 of the steel material 1 so that the protruding ends are wavy along the axial direction of the steel material 1. By doing so, it is also possible to form unevenness. Thereby, adhesion with the filler 3 can be improved and the joint length can be shortened.

またテーパ部１３への凹凸の形成方法も、突起１４、１４’によるものに限らない。例えば図３（ｂ）に示すように、テーパ部１３の外面に複数のスタッド１５を固定することによって凹凸を形成してもよい。さらに、図３（ｃ）に示すように、テーパ部１３の外面に孔あき鋼板１６を固定して充填材３との付着性を高めることも可能である。このように、凹凸を形成する方法は特に限定されない。 Furthermore, the method of forming the unevenness on the tapered portion 13 is not limited to the method using the projections 14, 14'. For example, as shown in FIG. 3(b), unevenness may be formed by fixing a plurality of studs 15 to the outer surface of the tapered portion 13. Furthermore, as shown in FIG. 3(c), it is also possible to fix a perforated steel plate 16 to the outer surface of the tapered portion 13 to improve adhesion with the filler material 3. In this way, the method of forming the unevenness is not particularly limited.

これはカプラ２のテーパ面でも同様である。例えば図３の各構成はカプラ２のテーパ面においても適用でき、これらの方法によって鋼材１やカプラ２と充填材３との付着性を高めることができる。ただし、鋼材１のテーパ部１３の外面とカプラ２のテーパ面の一方あるいは双方を平らとしてもよい。 This also applies to the tapered surface of the coupler 2. For example, the configurations shown in FIG. 3 can also be applied to the tapered surface of the coupler 2, and these methods can improve the adhesion between the steel material 1 or the coupler 2 and the filler 3. However, one or both of the outer surface of the tapered portion 13 of the steel material 1 and the tapered surface of the coupler 2 may be flat.

また本実施形態では、カプラ２を構成する鋼管２１を角錐台状とし、対向する２組の内面がテーパ面となっているが、対向する２組の内面のうち、鋼材１のフランジ１１側に位置する１組の内面のみをテーパ面としてもよい。 Further, in this embodiment, the steel pipe 21 constituting the coupler 2 is shaped like a truncated pyramid, and the inner surfaces of the two opposing pairs are tapered surfaces. Only one set of inner surfaces may be tapered surfaces.

さらに、カプラ２を構成する鋼管２１は角錐台状に限らず、例えば鋼管２１を円錐台状としてもよい。加えて、カプラを構成する鋼管２１を鋼材１の軸方向に沿った円筒状のものとしてテーパ面を省略してもよい。あるいは鋼材１のテーパ部１３を省略することも考えられ、カプラ２のテーパ面と鋼材１のテーパ部１３のいずれか一方のみ設けることが可能である。 Further, the steel pipe 21 constituting the coupler 2 is not limited to the shape of a truncated pyramid, but may be shaped like a truncated cone, for example. In addition, the tapered surface may be omitted by making the steel pipe 21 constituting the coupler cylindrical along the axial direction of the steel material 1. Alternatively, it is possible to omit the tapered portion 13 of the steel material 1, and it is possible to provide only one of the tapered surface of the coupler 2 and the tapered portion 13 of the steel material 1.

また、継手構造１０は、鉛直方向に配置された鋼材１の端部同士の接続に限らず、水平方向あるいは斜め方向に配置された鋼材１の端部同士の接続に適用してもよく、接続する鋼材１の向きが異なっていてもよい。 Furthermore, the joint structure 10 is not limited to connecting the ends of the steel materials 1 arranged in the vertical direction, but may also be applied to the connection of the ends of the steel materials 1 arranged in the horizontal or diagonal direction. The orientation of the steel material 1 may be different.

以下、本発明の別の例を第２～第６の実施形態として説明する。第２～第６の実施形態はそれまでに説明した実施形態と異なる構成について主に説明し、同様の構成については図等で同じ符号を付すなどして説明を省略する。また第１の実施形態も含め、各実施形態で説明する構成は必要に応じて組み合わせることができる。 Hereinafter, other examples of the present invention will be described as second to sixth embodiments. In the second to sixth embodiments, configurations that are different from those of the embodiments described up to that point will be mainly explained, and similar configurations will be designated by the same reference numerals in the drawings, etc., and a description thereof will be omitted. Furthermore, the configurations described in each embodiment, including the first embodiment, can be combined as necessary.

[第２の実施形態]
第１の実施形態では鋼材１としてH形鋼を用いたが、鋼材１はH形鋼に限らず、平鋼、山形鋼、溝形鋼などその他の形鋼でもよい。図４（ａ）は、このうち鋼材１ａを平鋼とした第２の実施形態の継手構造１０ａについて、図１（ａ）と同様の断面を示したものである。 [Second embodiment]
In the first embodiment, an H-shaped steel is used as the steel material 1, but the steel material 1 is not limited to the H-shaped steel, but may be other shaped steel such as a flat steel, an angle steel, or a channel steel. FIG. 4(a) shows a cross section similar to FIG. 1(a) of a joint structure 10a of the second embodiment in which the steel material 1a is a flat bar.

第２の実施形態の継手構造１０ａでも、接続される両鋼材１ａの端部が、角錐台状の鋼管２１ａからなるカプラ２ａ内に配置される。 In the joint structure 10a of the second embodiment as well, the ends of both steel members 1a to be connected are arranged within a coupler 2a made of a truncated pyramid-shaped steel pipe 21a.

テーパ部１３は鋼材１ａの表裏両面に設けられる。鋼管２１ａは第１の実施形態の鋼管２１よりも細幅となっているが、各鋼材１ａのテーパ部１３の外面、各鋼管２１ａのテーパ面の双方に第１の実施形態と同様の突起１４、２３が設けられる。 The tapered portions 13 are provided on both the front and back surfaces of the steel material 1a. Although the steel pipe 21a is narrower than the steel pipe 21 of the first embodiment, the same protrusions 14 as in the first embodiment are provided on both the outer surface of the tapered portion 13 of each steel material 1a and the tapered surface of each steel pipe 21a. , 23 are provided.

この第２の実施形態でも、第１の実施形態と同様、現場作業を省力化でき、鋼材１ａの引抜に対する抵抗性も高い継手構造１０ａを提供することができる。なお、図４（ｂ）の継手構造１０ａ’に示すように、両鋼材１ａの先端を間隔を空けて配置し、各鋼材１ａの先端にエンドプレート１７（定着板）を設けてもよい。これにより、鋼材１ａの端部をカプラ２ａ内の充填材３に好適に定着することができる。 Similarly to the first embodiment, the second embodiment also makes it possible to save on-site work and provide a joint structure 10a that is highly resistant to pulling out of the steel material 1a. Note that, as shown in the joint structure 10a' in FIG. 4(b), the ends of both steel materials 1a may be arranged with a gap between them, and an end plate 17 (fixing plate) may be provided at the end of each steel material 1a. Thereby, the end portion of the steel material 1a can be suitably fixed to the filler 3 within the coupler 2a.

[第３の実施形態]
図５（ａ）は、第３の実施形態に係る継手構造１０ｂについて、図１（ａ）と同様の断面を示したものである。第３の実施形態は、カプラ２の開口端に当たる位置で、鋼材１に閉塞板４が設けられる点で第１の実施形態と異なる。 [Third embodiment]
FIG. 5(a) shows a cross section similar to FIG. 1(a) of a joint structure 10b according to the third embodiment. The third embodiment differs from the first embodiment in that a closing plate 4 is provided on the steel material 1 at a position corresponding to the open end of the coupler 2.

閉塞板４は例えば鋼板である。閉塞板４と鋼材１との接合部は、必要に応じてリブ４１等により補強される。 The closing plate 4 is, for example, a steel plate. The joint between the closing plate 4 and the steel material 1 is reinforced with ribs 41 or the like as necessary.

各鋼材１の端部は、閉塞板４がカプラ２の開口端に接触するまでカプラ２内に挿入され、これにより両鋼材１の先端同士がカプラ２内で突き合わせられるとともに、閉塞板４によってカプラ２の開口端が閉塞される。 The end of each steel material 1 is inserted into the coupler 2 until the closure plate 4 comes into contact with the open end of the coupler 2, and as a result, the tips of both steel products 1 are brought into contact with each other within the coupler 2, and the closure plate 4 causes the coupler to close. The open end of No. 2 is closed.

カプラ２には図示しない充填孔および空気抜き孔が設けられる。充填材３は充填孔からカプラ２内に充填され、この時カプラ２内の空気が空気抜き孔から排出される。 The coupler 2 is provided with a filling hole and an air vent hole (not shown). The filler 3 is filled into the coupler 2 through the filling hole, and at this time, the air inside the coupler 2 is discharged through the air vent hole.

この第３の実施形態でも、第１の実施形態と同様、現場作業を省力化でき、鋼材１の引抜に対する抵抗性も高い継手構造１０ｂを提供することができる。また第３の実施形態では、閉塞板４によりカプラ２からの充填材３の漏れ出しを防止でき、且つ鋼材１のカプラ２への挿入長の管理も容易になる。 Similarly to the first embodiment, the third embodiment also makes it possible to save on-site work and provide a joint structure 10b with high resistance to pulling out of the steel material 1. Further, in the third embodiment, the filler material 3 can be prevented from leaking from the coupler 2 by the closing plate 4, and the insertion length of the steel material 1 into the coupler 2 can be easily controlled.

なお、図５（ｂ）の継手構造１０ｂ’に示すように、閉塞板４にカプラ２内に突出する突出部４２を設けてもよい。突出部４２はカプラ２の開口縁に内接する位置に設けられており、鋼材１をカプラ２内に挿入する際の位置決めに用いられる。すなわち、突出部４２がカプラ２の開口縁に内接するように鋼材１を挿入することで、カプラ２に対する鋼材１の平面位置を容易に決定し、鋼材１の位置ずれを防止することができる。 Note that, as shown in the joint structure 10b' in FIG. 5(b), the closing plate 4 may be provided with a protrusion 42 that protrudes into the coupler 2. The protrusion 42 is provided at a position inscribed in the opening edge of the coupler 2, and is used for positioning when inserting the steel material 1 into the coupler 2. That is, by inserting the steel material 1 so that the protruding portion 42 is inscribed in the opening edge of the coupler 2, the planar position of the steel material 1 with respect to the coupler 2 can be easily determined, and the positional shift of the steel material 1 can be prevented.

また、図５（ｃ）に継手構造１０ｂ”の側面を示すように、一方の鋼材１の閉塞板４に突出部４３を設け、当該鋼材１の閉塞板４をカプラ２ｂの開口端に接触させて鋼材１の端部をカプラ２ｂ内に挿入した時に、突出部４３がカプラ２ｂの鋼管２１ｂに形成された孔２２に挿入されるようにしてもよい。孔２２は鋼管２１ｂの４つの側面に設けられ、閉塞板４の突出部４３も各孔２２に対応して４つ設けられる。これによっても、鋼材１をカプラ２ｂ内に挿入する際に、カプラ２ｂに対する鋼材１の平面位置を容易に決定し、鋼材１の位置ずれを防止できる。 Further, as shown in the side view of the joint structure 10b'' in FIG. 5(c), a protrusion 43 is provided on the closing plate 4 of one of the steel members 1, and the closing plate 4 of the steel member 1 is brought into contact with the open end of the coupler 2b. When the end of the steel material 1 is inserted into the coupler 2b, the protrusion 43 may be inserted into the hole 22 formed in the steel pipe 21b of the coupler 2b. Four protrusions 43 of the closing plate 4 are also provided corresponding to each hole 22. This also makes it possible to easily adjust the planar position of the steel material 1 relative to the coupler 2b when inserting the steel material 1 into the coupler 2b. This can prevent the steel material 1 from shifting.

また、上記の突出部４３をネジ等とし、突出部４３を上記の鋼管２１ｂだけで無くもう一方の鋼管２１の孔（不図示）にも通してその先端を他方の鋼材１の閉塞板４に締結する、といった構成も可能であり、これにより両鋼材１を固定することができる。 Further, the protrusion 43 is made of a screw or the like, and the protrusion 43 is passed not only through the steel pipe 21b but also through a hole (not shown) in the other steel pipe 21, and its tip is connected to the closing plate 4 of the other steel pipe 1. A configuration in which they are fastened is also possible, and thereby both steel materials 1 can be fixed.

なお、第３の実施形態では閉塞板４として鋼板を予め鋼材１に固定したが、閉塞板４は充填材３の漏れを防止できるものであればよく、材質や設置方法はこれに限らない。例えば、ゴムや樹脂によるパッキンのような閉塞板を鋼材１に設けてもよい。また鋼材１をカプラ２内に挿入した後で、カプラ２の開口端を塞ぐように閉塞板４を設けることも可能である。 Note that in the third embodiment, a steel plate is fixed to the steel material 1 in advance as the closing plate 4, but the closing plate 4 may be of any material as long as it can prevent the filler 3 from leaking, and the material and installation method are not limited thereto. For example, a closing plate such as a rubber or resin packing may be provided on the steel material 1. Further, after inserting the steel material 1 into the coupler 2, it is also possible to provide the closing plate 4 so as to close the open end of the coupler 2.

[第４の実施形態]
図６（ａ）は、第４の実施形態に係る継手構造１０ｃを図１（ａ）と同様の断面で示す図である。第４の実施形態の継手構造１０ｃは、接続する一方の鋼材１ａ（図６（ａ）の下側の鋼材１ａ）の端部に接合板５が設けられ、当該接合板５に、角錐台状の鋼管２１の面積の大きい方の端面が固定される点で第２の実施形態と主に異なる。 [Fourth embodiment]
FIG. 6(a) is a cross-sectional view similar to FIG. 1(a) of a joint structure 10c according to the fourth embodiment. In the joint structure 10c of the fourth embodiment, a joint plate 5 is provided at the end of one of the steel members 1a to be connected (lower steel member 1a in FIG. 6(a)), and the joint plate 5 has a truncated pyramid shape. The main difference from the second embodiment is that the end face of the steel pipe 21 having a larger area is fixed.

本実施形態では、上記の鋼管２１により筒状のカプラ２ｃが構成され、当該カプラ２ｃが他方の鋼材１ａの端部を囲うように配置される。 In this embodiment, a cylindrical coupler 2c is configured by the steel pipe 21, and the coupler 2c is arranged so as to surround the end of the other steel material 1a.

接合板５は例えば鋼板である。接合板５と鋼材１との接合部は、必要に応じてリブ５１等により補強される。 The joint plate 5 is, for example, a steel plate. The joint between the joint plate 5 and the steel material 1 is reinforced with ribs 51 or the like as necessary.

鋼材１ａの端部同士の接続時には、図６（ｂ）に示すように、予め一方の鋼材１ａの端部に接合板５を介して取り付けたカプラ２ｃに、他方の鋼材１ａの端部を矢印ａに示すように挿入し、カプラ２ｃ内に充填材３を充填する。これにより、図６（ａ）に示す継手構造１０ｃが形成される。 When connecting the ends of the steel material 1a, as shown in FIG. 6(b), the end of the other steel material 1a is connected to the coupler 2c, which is attached to the end of the other steel material 1a via the joint plate 5, by the arrow. Insert the coupler 2c as shown in a, and fill the filler 3 into the coupler 2c. As a result, a joint structure 10c shown in FIG. 6(a) is formed.

この第４の実施形態でも、第１の実施形態と同様、現場作業を省力化でき、鋼材１ａの引抜に対する抵抗性も高い継手構造１０ｃを提供することができる。また第４の実施形態では簡単な作業で鋼材１ａ同士の接続作業を終えることができる。 Similarly to the first embodiment, the fourth embodiment also makes it possible to save on-site work and provide a joint structure 10c that is highly resistant to pulling out of the steel material 1a. Further, in the fourth embodiment, the work of connecting the steel materials 1a to each other can be completed with a simple work.

[第５の実施形態]
図７は、第５の実施形態に係る継手構造１０ｄを図１（ａ）と同様の断面で示す図である。継手構造１０ｄは、接続する両鋼材１ａの端部が、カプラ２ｄ内で重なるように配置される点で第２の実施形態と主に異なる。 [Fifth embodiment]
FIG. 7 is a diagram showing a joint structure 10d according to the fifth embodiment in a cross section similar to FIG. 1(a). The joint structure 10d differs from the second embodiment mainly in that the ends of the two steel materials 1a to be connected are arranged so as to overlap within the coupler 2d.

カプラ２ｄは、一対の角錐台状の鋼管２１を、面積の小さい方の端面同士で接合して筒状に形成される。各鋼管２１の面積の大きい方の端面は、鋼材１ａを挿入するカプラ２ｄの開口端となる。 The coupler 2d is formed into a cylindrical shape by joining a pair of truncated pyramid-shaped steel pipes 21 at their smaller end faces. The end surface of each steel pipe 21 with a larger area becomes an open end of a coupler 2d into which the steel material 1a is inserted.

継手構造１０ｄでは、一方の鋼管２１側から挿入された一方の鋼材１ａのテーパ部１３が、他方の鋼管２１内に配置され、他方の鋼管２１側から挿入された他方の鋼材１ａのテーパ部１３が、一方の鋼管２１内に配置される。こうして２つの鋼材１ａの端部同士がカプラ２ｄ内で重なるように配置される。 In the joint structure 10d, the tapered part 13 of one steel material 1a inserted from the one steel pipe 21 side is arranged inside the other steel pipe 21, and the tapered part 13 of the other steel material 1a inserted from the other steel pipe 21 side is placed inside one of the steel pipes 21. In this way, the ends of the two steel materials 1a are arranged so as to overlap within the coupler 2d.

この第５の実施形態でも、第１の実施形態と同様、現場作業を省力化でき、鋼材１ａの引抜に対する抵抗性も高い継手構造１０ｄを提供することができる。また第５の実施形態では、カプラ２ｄ内に鋼材１ａの重なり部分を設けることによって継手長を短くすることができる。なお、第５の実施形態では、テーパ部１３だけでなく、鋼材１ａのカプラ２ｄ内に挿入される部分にも、テーパ部１３と同様の突起１４を設けることができる。 Similarly to the first embodiment, the fifth embodiment also makes it possible to save on-site work and provide a joint structure 10d that is highly resistant to pulling out of the steel material 1a. Further, in the fifth embodiment, the joint length can be shortened by providing an overlapping portion of the steel material 1a within the coupler 2d. Note that in the fifth embodiment, protrusions 14 similar to the tapered portion 13 can be provided not only in the tapered portion 13 but also in the portion of the steel material 1a that is inserted into the coupler 2d.

[第６の実施形態]
図８は、第６の実施形態に係る継手構造１０ｅを示す図である。継手構造１０ｅは、鋼材１の端部同士をカプラ２ｅにより接続するものである。 [Sixth embodiment]
FIG. 8 is a diagram showing a joint structure 10e according to the sixth embodiment. The joint structure 10e connects the ends of the steel material 1 to each other by a coupler 2e.

図８（ａ）は継手構造１０ｅについて鋼材１のウェブ１２に平行な断面を示した図、図８（ｂ）は鋼材１のフランジ１１に平行な断面を示した図、図８（ｃ）は継手構造１０ｅの側面図である。図８（ａ）は図８（ｂ）の線Ｅ－Ｅによる断面であり、図８（ｂ）は図８（ａ）の線Ｄ－Ｄによる断面である。また図８（ｃ）は図８（ａ）の矢印Ｆに示す方向から継手構造１０ｅを見た図である。 8(a) is a diagram showing a cross section of the joint structure 10e parallel to the web 12 of the steel material 1, FIG. 8(b) is a diagram showing a cross section parallel to the flange 11 of the steel material 1, and FIG. 8(c) is a diagram showing a cross section parallel to the flange 11 of the steel material 1. It is a side view of joint structure 10e. 8(a) is a cross section along line EE in FIG. 8(b), and FIG. 8(b) is a cross section along line DD in FIG. 8(a). Further, FIG. 8(c) is a view of the joint structure 10e viewed from the direction indicated by arrow F in FIG. 8(a).

第６の実施形態の継手構造１０ｅは、カプラ２ｅを構成する鋼管２１ｅの１つの側面が開口部２１１となっている点で第１の実施形態と異なる。当該側面は、突起２３が設けられない面である。 The joint structure 10e of the sixth embodiment differs from the first embodiment in that one side surface of the steel pipe 21e constituting the coupler 2e is an opening 211. The side surface is a surface on which the protrusion 23 is not provided.

鋼材１の端部同士の接続時には、図９の矢印ｂに示すように、鋼材１の端部をカプラ２ｅの側方から移動させ、開口部２１１よりカプラ２ｅに挿入して鋼管２１ｅ内に配置することができ、カプラ２ｅに充填材３を充填することで図８に示す継手構造１０ｅを形成できる。 When connecting the ends of the steel material 1, as shown by the arrow b in FIG. 9, the end of the steel material 1 is moved from the side of the coupler 2e, inserted into the coupler 2e through the opening 211, and placed in the steel pipe 21e. By filling the coupler 2e with the filler 3, a joint structure 10e shown in FIG. 8 can be formed.

この第６の実施形態でも、第１の実施形態と同様、現場作業を省力化でき、鋼材１の引抜に対する抵抗性も高い継手構造１０ｅを提供することができる。第６の実施形態では、カプラ２ｅの側面に開口部２１１を設けることにより、鋼材１をカプラ２ｅの側方から移動させてカプラ２ｅ内に配置することができ、施工時の自由度が高まる。 Similarly to the first embodiment, the sixth embodiment also makes it possible to save on-site work and provide a joint structure 10e with high resistance to pulling out of the steel material 1. In the sixth embodiment, by providing an opening 211 on the side surface of the coupler 2e, the steel material 1 can be moved from the side of the coupler 2e and placed inside the coupler 2e, increasing the degree of freedom during construction.

なお、図１０（ａ）に側面を示す継手構造１０ｅ’のように、カプラ２の外側にスパイラル鉄筋６を配置してもよい。これにより、継手構造１０ｅ’の周囲に打設されるコンクリート（不図示）の拘束力が増加し、カプラ２ｅを介した鋼材１同士の応力伝達を効率化できる。 Note that the spiral reinforcing bars 6 may be arranged outside the coupler 2, as in a joint structure 10e' whose side view is shown in FIG. 10(a). As a result, the restraining force of concrete (not shown) placed around the joint structure 10e' increases, and stress transmission between the steel members 1 via the coupler 2e can be made more efficient.

スパイラル鉄筋６は、図１０（ｂ）に示すように一方の鋼材１に予め通しておき、当該鋼材１の端部を矢印ｂに示すように開口部２１１（図９参照）からカプラ２ｅ内に挿入した後、スパイラル鉄筋６を矢印ｃに示すように鋼材１の軸方向にスライドさせる。これにより、スパイラル鉄筋６をカプラ２ｅの周囲に容易に配置することができる。 The spiral reinforcing bar 6 is passed through one of the steel materials 1 in advance as shown in FIG. After insertion, the spiral reinforcing bar 6 is slid in the axial direction of the steel material 1 as shown by arrow c. Thereby, the spiral reinforcing bars 6 can be easily arranged around the coupler 2e.

以上、添付図面を参照しながら、本発明に係る好適な実施形態について説明したが、本発明はかかる例に限定されない。当業者であれば、本願で開示した技術的思想の範疇内において、各種の変更例又は修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes or modifications within the scope of the technical idea disclosed in this application, and these naturally fall within the technical scope of the present invention. Understood.

１、１ａ：鋼材
２、２ａ、２ｂ、２ｃ、２ｄ、２ｅ：カプラ
３：充填材
４：閉塞板
５：接合板
６：スパイラル鉄筋
１０、１０ａ、１０ａ’、１０ｂ、１０ｂ’、１０ｂ”、１０ｃ、１０ｄ、１０ｅ、１０ｅ’：継手構造
１１：フランジ
１２：ウェブ
１３：テーパ部
１４、１４’、２３：突起
１５：スタッド
１６：孔あき鋼板
１７：エンドプレート
２１、２１ａ、２１ｂ、２１ｅ：鋼管
２２：孔
４１、５１：リブ
４２、４３：突出部
２１１：開口部 1, 1a: Steel materials 2, 2a, 2b, 2c, 2d, 2e: Coupler 3: Filler 4: Occlusion plate 5: Joint plate 6: Spiral reinforcing bars 10, 10a, 10a', 10b, 10b', 10b", 10c , 10d, 10e, 10e': Joint structure 11: Flange 12: Web 13: Tapered part 14, 14', 23: Protrusion 15: Stud 16: Perforated steel plate 17: End plate 21, 21a, 21b, 21e: Steel pipe 22 : Holes 41, 51: Ribs 42, 43: Protrusion 211: Opening

Claims (7)

形鋼の端部同士を接続した継手構造であって、
筒状のカプラが、接続する両形鋼の端部を囲うように配置され、
前記カプラ内に充填材が充填され、
前記カプラが、前記形鋼の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、
前記形鋼が、前記形鋼の先端に近付くに連れて拡幅するテーパ部を端部に有することを特徴とする継手構造。 A joint structure in which the ends of shaped steel are connected to each other,
A cylindrical coupler is arranged so as to surround the ends of both sections to be connected,
A filler is filled in the coupler,
The coupler has a tapered surface on its inner surface that becomes wider as it approaches the tip of the section steel , or
A joint structure characterized in that the shaped steel has a tapered portion at an end that widens as it approaches the tip of the shaped steel . 形鋼の端部同士を接続した継手構造であって、
一方の形鋼の端部に設けられた筒状のカプラが、他方の形鋼の端部を囲うように配置され、
前記カプラ内に充填材が充填され、
前記カプラが、前記他方の形鋼の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、
前記他方の形鋼が、当該形鋼の先端に近付くに連れて拡幅するテーパ部を端部に有することを特徴とする継手構造。 A joint structure in which the ends of shaped steel are connected to each other,
A cylindrical coupler provided at the end of one section steel is arranged so as to surround the end of the other section steel ,
A filler is filled in the coupler,
The coupler has a tapered surface on its inner surface that becomes wider as it approaches the tip of the other section steel , or
A joint structure characterized in that the other shaped steel has a tapered portion at its end that widens as it approaches the tip of the shaped steel . 前記カプラの、前記カプラに挿入される形鋼の端部を囲う部分が、角錐台状であることを特徴とする請求項１または請求項２記載の継手構造。3. The joint structure according to claim 1, wherein a portion of the coupler surrounding an end of a section steel inserted into the coupler has a truncated pyramid shape. 前記カプラが前記テーパ面を有し、
前記テーパ面に、前記充填材との付着性を向上させるための凹凸が形成されることを特徴とする請求項１から請求項３のいずれかに記載の継手構造。 the coupler has the tapered surface,
4. The joint structure according to claim 1, wherein the tapered surface is provided with unevenness for improving adhesion with the filler . 前記カプラの開口端が、前記カプラに挿入される形鋼に設けた閉塞板で閉塞され、
前記閉塞板は前記カプラの端部に当接するように配置されることを特徴とする請求項１から請求項４のいずれかに記載の継手構造。 The open end of the coupler is closed with a closing plate provided on a section steel inserted into the coupler ,
The joint structure according to any one of claims 1 to 4 , wherein the closing plate is arranged so as to abut an end portion of the coupler . 鋼材の端部同士を接続した継手構造であって、
筒状のカプラが、接続する両鋼材の端部を囲うように配置され、
前記カプラ内に充填材が充填され、
前記カプラが、前記鋼材の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、
前記鋼材が、前記鋼材の先端に近付くに連れて拡幅するテーパ部を端部に有し、
前記カプラの開口端が、前記カプラに挿入される鋼材に設けた閉塞板で閉塞され、
前記閉塞板は、前記カプラに挿入される鋼材の位置決めに用いる突出部を有することを特徴とする継手構造。 A joint structure in which the ends of steel materials are connected to each other,
A cylindrical coupler is arranged so as to surround the ends of both steel materials to be connected,
A filler is filled in the coupler,
The coupler has a tapered surface on its inner surface that becomes wider as it approaches the tip of the steel material, or
The steel material has a tapered part at an end that increases in width as it approaches the tip of the steel material,
The open end of the coupler is closed with a closing plate provided on a steel material inserted into the coupler,
The joint structure is characterized in that the closing plate has a protrusion used for positioning a steel material to be inserted into the coupler . 鋼材の端部同士を接続した継手構造であって、
一方の鋼材の端部に設けられた筒状のカプラが、他方の鋼材の端部を囲うように配置され、
前記カプラ内に充填材が充填され、
前記カプラが、前記他方の鋼材の先端に近付くに連れて拡幅するテーパ面を内面に有するか、または、
前記他方の鋼材が、当該鋼材の先端に近付くに連れて拡幅するテーパ部を端部に有し、
前記カプラの開口端が、前記カプラに挿入される鋼材に設けた閉塞板で閉塞され、
前記閉塞板は、前記カプラに挿入される鋼材の位置決めに用いる突出部を有することを特徴とする継手構造。 A joint structure in which the ends of steel materials are connected to each other,
A cylindrical coupler provided at the end of one steel material is arranged so as to surround the end of the other steel material,
A filler is filled in the coupler,
The coupler has a tapered surface on its inner surface that becomes wider as it approaches the tip of the other steel material, or
The other steel material has a tapered part at its end that widens as it approaches the tip of the steel material,
The open end of the coupler is closed with a closing plate provided on a steel material inserted into the coupler,
The joint structure is characterized in that the closing plate has a protrusion used for positioning a steel material to be inserted into the coupler .
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130202447A1 (en) 2010-05-25 2013-08-08 Thomas OESTERGAARD segmented jacket construction, in particular for a foundation for a wind turbine installation
JP2019082027A (en) 2017-10-30 2019-05-30 章 福田 Reinforced joint, reinforced steel assembly and precast reinforced concrete body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130202447A1 (en) 2010-05-25 2013-08-08 Thomas OESTERGAARD segmented jacket construction, in particular for a foundation for a wind turbine installation
JP2019082027A (en) 2017-10-30 2019-05-30 章 福田 Reinforced joint, reinforced steel assembly and precast reinforced concrete body

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