JP4754347B2 - High-strength bolt tension joint structure of concrete filled square steel tube column and beam - Google Patents

High-strength bolt tension joint structure of concrete filled square steel tube column and beam Download PDF

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JP4754347B2
JP4754347B2 JP2005373872A JP2005373872A JP4754347B2 JP 4754347 B2 JP4754347 B2 JP 4754347B2 JP 2005373872 A JP2005373872 A JP 2005373872A JP 2005373872 A JP2005373872 A JP 2005373872A JP 4754347 B2 JP4754347 B2 JP 4754347B2
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steel pipe
square steel
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tensile
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JP2007177403A (en
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清三郎 東
紳一 澤泉
敏之 福元
行正 荻原
博 藤村
清 塚本
滋 吉貝
正哉 瀧
淳 久保田
達 宮坂
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新日本製鐵株式会社
鹿島建設株式会社
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本発明は、主に、建築鋼構造物を構成するコンクリート充填角形鋼管柱に、例えばH形鋼梁などの梁を、T型金物やエンドプレートなどの接合金物を介して高力ボルト引張接合するコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造に関するものである。   The present invention mainly uses a high-strength bolt tension joint to a concrete-filled rectangular steel pipe column constituting a building steel structure, for example, a beam such as an H-shaped steel beam via a joint metal such as a T-shaped metal or end plate. It is related to high strength bolt tension joint structure of concrete filled square steel pipe column and beam.
従来、建築鋼構造物の分野では、角形鋼管柱とH形鋼梁を対象とした柱−梁接合構造として、例えば、通しダイアフラム形式の接合構造が知られている。このダイアフラム形式の接合構造では、ダイヤフラムを設置するために、鋼管柱を一旦分断しダイアフラムを挿入した後、溶接接合して再度一体化する上、梁とダイアフラムも溶接接合を行うこととなるため、製作加工が煩雑である。また、梁とダイアフラムの溶接は現場溶接となる場合が多く、風雨の影響を受けやすく、接合部の安定した品質確保が難しい。
一方、本願では、鋼管柱の加工はボルトやPC鋼棒を通す孔明け加工のみで完了するため、柱の加工度が飛躍的に簡易になる。また、接合金物としてエンドプレートを用いた場合には、梁との接合に溶接接合を用いるが、この溶接接合は、作業環境の整った工場でできるため、安定した品質確保ができる。また、現場では、熟練を必要とする溶接接合を用いず、施工が簡単なボルト接合を用いるため、接合部全体としても安定した品質を容易に確保することができる。
2. Description of the Related Art Conventionally, in the field of building steel structures, for example, a through diaphragm type joint structure is known as a pillar-beam joint structure for square steel pipe columns and H-shaped steel beams. In this diaphragm type joint structure, in order to install the diaphragm, the steel pipe column is divided once, the diaphragm is inserted, and then welded and joined again, and the beam and the diaphragm are also welded. The manufacturing process is complicated. Also, welding of the beam and the diaphragm is often on-site welding, which is easily affected by wind and rain, and it is difficult to ensure a stable quality of the joint.
On the other hand, in the present application, the processing of the steel pipe column is completed only by drilling through a bolt or a PC steel rod, so that the processing degree of the column is greatly simplified. In addition, when an end plate is used as a metal joint, welding is used for joining to a beam. Since this welding can be performed in a factory with a working environment, stable quality can be ensured. Moreover, in the field, since the welding which requires the skill is not used and the bolting that is easy to construct is used, stable quality can be easily ensured as the whole joint.
特許文献1には、溶接作業を排除するための代替え案として、鉄骨造を対象とした引張ボルト形式の柱梁接合部が開示されている。この引張ボルト形式は、梁フランジからの引張力をエンドプレートの曲げ抵抗により高力ボルトに伝達し、高力ボルトの材軸方向の抵抗と鋼管前面の曲げ抵抗により、鋼管側面へ応力を伝達する接合形式である。
したがって、接合部の耐力は、高力ボルトの材軸方向の引張耐力、鋼管の面外抵抗力、エンドプレートの面外抵抗力のいずれか小さい値で決定される。この内、鋼管の面外耐力(抵抗力)は高力ボルトと鋼管側面との距離が小さい程大きくなるため、効率的に接合部の耐力(鋼管の面外耐力)を向上させる方法として、特許文献1には高力ボルトを極力鋼管側面側に配置した引張ボルト接合部が開示されている。
しかし、高力ボルト引張接合だけでは、伝達できる応力に限界があり、梁が大断面となった場合や鋼管柱がCFT造となり鋼管厚が小さくなった場合には、十分な接合部耐力を確保できなくなるといった課題がある。
一方、本願では、引張高力ボルトを鋼管側面側(隅部に近い部位)に寄せて配置して効率的に鋼管面外耐力を向上させるとともに、引張抵抗補助材を別途設けることで十分な接合部耐力を確保することができる。
Patent Document 1 discloses a tension-bolt-type column beam joint intended for steel structure as an alternative to eliminate welding work. In this tension bolt type, the tensile force from the beam flange is transmitted to the high strength bolt by the bending resistance of the end plate, and the stress is transmitted to the side surface of the steel pipe by the resistance in the axial direction of the high strength bolt and the bending resistance of the front surface of the steel pipe. It is a joining type.
Therefore, the yield strength of the joint is determined by the smaller value of any of the tensile strength in the axial direction of the high-strength bolt, the out-of-plane resistance of the steel pipe, and the out-of-plane resistance of the end plate. Among these, the out-of-plane proof stress (resistance force) of the steel pipe increases as the distance between the high-strength bolt and the side surface of the steel pipe becomes smaller, and as a method to efficiently improve the proof strength of the joint (out-of-plane proof strength of the steel pipe) Document 1 discloses a tensile bolt joint in which high-strength bolts are arranged on the side of the steel pipe as much as possible.
However, there is a limit to the stress that can be transmitted with high-strength bolt tensile joints only. When the beam has a large cross section or when the steel pipe column is made of CFT and the steel pipe thickness is reduced, sufficient joint strength is ensured. There is a problem that it becomes impossible.
On the other hand, in the present application, the tensile high-strength bolt is arranged close to the side surface of the steel pipe (part close to the corner) to efficiently improve the steel pipe surface strength and to provide sufficient joining by separately providing a tensile resistance auxiliary material. The part yield strength can be secured.
特許文献2には、煩雑な溶接作業を排除するための代替え案として、CFT造を対象としたアンカーボルト形式の柱梁接合部が開示されている。これは、充填コンクリートを効率的に利用して梁フランジからの引張力を鋼管柱に伝達するものであるが、アンカー金物だけでは、伝達できる応力に限界があり、梁が大断面となった場合には、十分な接合部耐力を確保できなくなるといった課題がある。
一方、本願では、アンカー機能付きボルトを用いて充填コンクリートを効率的に利用するとともに、引張高力ボルトを鋼管側面側に寄せて配置して効率的に鋼管面外耐力を効率的向上させており、これら両者を併用することで十分な接合部耐力を確保することができる。
Patent Document 2 discloses an anchor bolt type beam-column joint intended for CFT construction as an alternative for eliminating complicated welding operations. This is to efficiently use the filled concrete to transmit the tensile force from the beam flange to the steel pipe column, but with the anchor metal alone there is a limit to the stress that can be transmitted, and the beam has a large cross section However, there is a problem that sufficient joint strength cannot be ensured.
On the other hand, in the present application, the concrete with the anchor function is used efficiently, and the tensile high-strength bolt is arranged close to the side surface of the steel pipe to efficiently improve the outer strength of the steel pipe surface. By using these both in combination, sufficient joint strength can be ensured.
特許文献3には、煩雑な溶接作業を排除するための代替え案として、鉄骨造を対象とした通しボルト形式の柱梁接合部が開示されている。しかし、特許文献3の通しボルト形式では、「H形鋼梁の端部の上、下のフランジに沿って別個にボルトにより板状の接合金具を固定し・・(請求項1)」とあるように、特殊な接合金具を必要とし、本願とは簡便性において大きく異なる。また、通しボルトだけでは、伝達できる応力に限界があり、梁が大断面となった場合には、十分な接合部耐力を確保できなくなるといった課題が残る。
一方、本願では、通しボルトを用いるとともに、引張高力ボルトを鋼管側面側に寄せて配置して効率的に鋼管面外耐力も向上させており、このようにこれら両者を併用することで十分な接合部耐力を確保している。
なお、特許文献3では、ウェブの接合に高力ボルトを用いているが、これは「せん断力抵抗具として、図6(イ)ではワンサイドボルト8を別に備えて対処するが、・・(段落0008、51行目)」とあるように、梁のせん断力を伝達するためのものであり、梁フランジの引張力を伝達するために配置した本願の引張高力ボルトとはその目的、効果が全く異なるものである。
Patent Document 3 discloses a through-bolt-type column beam joint for steel structure as an alternative to eliminate complicated welding work. However, in the through-bolt type of Patent Document 3, “a plate-like joint fitting is separately fixed with bolts along the upper and lower flanges of the end of the H-shaped steel beam (claim 1)”. Thus, a special joining metal fitting is required and differs greatly in convenience from the present application. In addition, there is a limit to the stress that can be transmitted with only through bolts, and there remains a problem that when the beam has a large cross section, it becomes impossible to ensure sufficient joint strength.
On the other hand, in the present application, through bolts are used and tensile high strength bolts are arranged close to the side surface of the steel pipe to effectively improve the steel pipe outer surface proof stress. Thus, it is sufficient to use both of these in combination. The joint strength is secured.
In Patent Document 3, a high-strength bolt is used for joining the web. However, this is “as a shearing force resister, a one-side bolt 8 is separately provided in FIG. Paragraph 0008, line 51) ”is for transmitting the shearing force of the beam, and the tensile high-strength bolt of the present application arranged to transmit the tensile force of the beam flange is its purpose and effect. Are completely different.
特許文献4には、煩雑な溶接作業を排除するための代替え案として、鉄骨造を対象とした通しボルト形式の柱梁接合部が開示されている。しかし、通しボルトだけでは、伝達できる応力に限界があり、梁が大断面となった場合には、十分な接合部耐力を確保できなくなるといった課題が残る。
一方、本願では、通しボルトを用いるとともに、引張高力ボルトを鋼管側面側に寄せて配置して効率的に鋼管面外耐力も向上させており、このようにこれら両者を併用することで十分な接合部耐力を確保することができる。
なお、特許文献4では、ウェブの接合に高力ボルトを用いているが、これは「せん断力抵抗具として、図7(イ)ではワンサイドボルト8を別に備えて対処するが、・・(段落0007、44行目)」とあるように、梁のせん断力を伝達するためのものであり、梁フランジの引張力を伝達するために配置した本願の引張高力ボルトとはその目的、効果が全く異なるものである。
Patent Document 4 discloses a through-bolt-type column beam joint for steel structure as an alternative to eliminate complicated welding work. However, there is a limit to the stress that can be transmitted with only through bolts, and when the beam has a large cross section, there remains a problem that sufficient joint strength cannot be ensured.
On the other hand, in the present application, through bolts are used and tensile high strength bolts are arranged close to the side surface of the steel pipe to effectively improve the steel pipe outer surface proof stress. Thus, it is sufficient to use both of these in combination. Bonding strength can be ensured.
In Patent Document 4, high-strength bolts are used for joining the webs, but this is described as “Shearing force resisters, which are dealt with by separately providing one-side bolts 8 in FIG. Paragraph 0007, line 44) ”is for transmitting the shearing force of the beam, and the tensile high-strength bolt of the present application arranged to transmit the tensile force of the beam flange is its purpose and effect. Are completely different.
特許文献5には、煩雑な溶接作業を排除するための代替え案として、貫通金物を用いた形式の柱梁接合部が開示されている。しかし、特許文献5は、「鉄骨柱の接合部を水平に貫通する貫通金物と、この貫通金物と梁フランジを接合する接合金物を備え、前記貫通金物は、鉄骨柱内部に位置する金物本体と、鉄骨柱側面から突出する雄ねじ部材からなり、前記接合金物は、雄ねじ部材にねじ込まれるナット部と、梁フランジの接合端部に溶接接合される接合部からなり、この接合部の接合面はねじ込みにより回転しても梁フランジに溶接可能な平面形状とされていることを特徴とする(請求項1)とあるように、複雑な貫通金物や接合金物を必要としており、本願とは簡便性において大きく異なる。また、貫通金物だけでは、伝達できる応力に限界があり、梁が大断面となった場合には、十分な接合部耐力を確保できなくなるといった課題が残る。
一方、本願では、通しボルトを用いるとともに、引張高力ボルトを鋼管側面側に寄せて配置して効率的に鋼管面外耐力も向上させており、このようにこれら両者を併用することで十分な接合部耐力を確保することができる。
特開平7−224461号公報 特開2003−343008号公報 特開平9−217421号公報 特開平9−151539号公報 特開2004−204526号公報
Patent Document 5 discloses a column beam joint portion using a penetrating hardware as an alternative to eliminate complicated welding work. However, Patent Document 5 discloses that “a through-metal that horizontally penetrates the joint portion of the steel column and a joint metal that joins the through-metal and the beam flange, the through-metal is a hardware main body located inside the steel column, The joint hardware consists of a nut part screwed into the male screw member and a joint part welded to the joint end of the beam flange, and the joint surface of this joint part is screwed It requires a complicated through metal fitting and joint metal fitting as described above (claim 1), which can be welded to the beam flange even if it is rotated by the In addition, there is a limit to the stress that can be transmitted only with the penetrating hardware, and when the beam has a large cross section, there remains a problem that sufficient joint strength cannot be secured.
On the other hand, in the present application, through bolts are used and tensile high strength bolts are arranged close to the side surface of the steel pipe to effectively improve the steel pipe outer surface proof stress. Thus, it is sufficient to use both of these in combination. Bonding strength can be ensured.
JP 7-224461 A JP 2003-343008 A JP-A-9-217421 JP-A-9-151539 JP 2004-204526 A
本発明は、接合金物と高力ボルトを用いたコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造において、上記従来の課題を有利に解決するものであり、簡易な構造にして接合部の剛性および引張耐力を効率的に向上させ、接合部としての最大耐力を向上可能にする接合部構造を提供するものである。   The present invention advantageously solves the above-mentioned conventional problems in a high strength bolt tensile joint structure of a concrete-filled rectangular steel pipe column and a beam using a joint hardware and a high strength bolt. It is an object of the present invention to provide a joint structure that can efficiently improve rigidity and tensile strength and improve the maximum yield strength as a joint.
本発明は、上記の課題を有利に解決するために、以下の(1)〜()を要旨とするものである。
(1)接合金物と高力ボルトを用いるコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造において、
角形鋼管柱の少なくとも一側面に接合金物を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物を引張接合するとともに、
当該接合した接合金物における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように、引張抵抗補強材を角形鋼管柱に締着させ、
当該引張抵抗補強材を締着させた角形鋼管柱の内部にコンクリートを充填して、固化させるコンクリートに引張抵抗補強材の軸部を埋没させ、
これにより引張抵抗補強材の耐力と鋼管面外耐力を累加させて、接合金物に接合する梁から伝達される引張力に対する剛性と接合部耐力を強化させることを特徴とするコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(2)角形鋼管柱の少なくとも一側面およびこれと相対する側面に接合金物を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物の各々を引張接合するとともに、
当該接合した接合金物における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように且つ両端部が接合金物の各々から突出するように、角形鋼管柱を挟んで相対する接合金物を貫通する長さを有する引張抵抗補強材を角形鋼管柱に締着させることを特徴とする前記(1)に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(3)角形鋼管柱の少なくとも一側面に接合金物を、これと相対する側面に平板を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物と平板の各々を引張接合するとともに、
当該接合した接合金物と平板の各々における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように且つ両端部が接合金物と平板の各々から突出するように、角形鋼管柱を挟んで相対する接合金物と平板を貫通する長さを有する引張抵抗補強材を角形鋼管柱に締着させることを特徴とする前記(1)に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
The present invention is summarized as the following (1) to ( 7 ) in order to advantageously solve the above problems.
(1) In a high strength bolt tensile joint structure of concrete filled square steel pipe columns and beams using joint hardware and high strength bolts,
Attach the joint metal to at least one side surface of the square steel pipe column, and tensile joint the joint metal using a plurality of high-strength bolts at a portion near the corner of the square steel pipe column and having a large tensile resistance.
At the portion between the high-strength bolts in the joined metal fitting, the tensile resistance reinforcing material is fastened to the square steel pipe column so that the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column,
Filling the inside of the square steel pipe column to which the tensile resistance reinforcing material is fastened with concrete, burying the shaft portion of the tensile resistance reinforcing material in the concrete to be solidified,
A concrete-filled square steel pipe column characterized by increasing the strength of the tensile resistance reinforcement and the out-of-plane strength of the steel pipe, strengthening the rigidity against the tensile force transmitted from the beam joined to the joint metal and the joint strength. High strength bolt tension joint structure of beams.
(2) Joining metal fittings using a plurality of high-strength bolts at a portion close to the corner of the square steel pipe pillar and having a large tensile resistance, abutting against the at least one side face of the square steel pipe pillar and the side face opposed thereto. As each of these are tension bonded,
In the part between the high-strength bolts in the joined metal fitting, the square steel pipe is so that the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column and both ends protrude from each of the joining hardware. The concrete-filled square steel pipe column and the high-strength bolt of the beam according to the above (1), wherein a tensile resistance reinforcing material having a length penetrating through the opposite joint metal fittings between the columns is fastened to the square steel pipe column Tensile joint structure.
(3) Use a plurality of high-strength bolts at a location close to the corner of the square steel pipe column and where the tensile resistance is large, with a metal joint on at least one side of the square steel pipe column and a flat plate on the side opposite to it. While joining each of the joint hardware and flat plate,
At the portion between the high strength bolts in each of the bonded metal fitting and the flat plate, the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column, and both ends protrude from each of the bonding hardware and the flat plate. As described above, the concrete-filled square as described in (1) above, wherein a tensile resistance reinforcing material having a length penetrating through a flat metal plate and a flat plate sandwiched between the square steel tube columns is fastened to the square steel tube column. High-strength bolt tension joint structure of steel pipe columns and beams.
(4)角形鋼管柱の一側面およびこれと相対する側面、ならびに前記一側面の隣の側面およびこれと相対する側面に接合金物を引張接合する場合において、隣り合う側面の接合金物の高さ位置または引張抵抗補強材の高さ位置を上下方向にずらして、直交する引張抵抗補強材の相互干渉を回避することを特徴とする前記(2)に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(5)角形鋼管柱の一側面に接合金物を、これと相対する側面に平板を、ならびに前記一側面の隣の側面に接合金物を、これと相対する側面に平板を引張接合する場合において、隣り合う側面の接合金物の高さ位置または引張抵抗補強材の高さ位置を上下方向にずらして、直交する引張抵抗補強材の相互干渉を回避することを特徴とする前記(3)に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(6)前記接合金物が、T形金物またはエンドプレートで、前記引張抵抗補強材が、軸部にねじ状部または節状部を有する異形鋼棒からなる通しボルトであることを特徴とする前記(1)〜(5)のいずれか1項に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(7)前記接合金物が、T形金物またはエンドプレートで、前記引張抵抗補強材が、アンカー機能付きボルトであることを特徴とする前記(1)に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
(4) In the case where a joint metal is tension-bonded to one side surface of the square steel pipe column and the side surface facing the one side surface and the side surface adjacent to the one side surface and the side surface facing the side surface, Alternatively, the height position of the tensile resistance reinforcing material is shifted in the vertical direction to avoid mutual interference between the orthogonal tensile resistance reinforcing materials, and the high strength of the concrete-filled square steel pipe column and beam according to (2) above Bolt tension joint structure.
(5) In the case of joining a joint metal to one side of a square steel pipe column, a flat plate to the side opposite to the joint, and a joint metal to the side adjacent to the one side, and a flat plate to the side opposite to the one side, The height position of the joint metal fittings on the adjacent side surfaces or the height position of the tensile resistance reinforcing material is shifted in the vertical direction to avoid mutual interference between the orthogonal tensile resistance reinforcing materials. High strength bolt tension joint structure of concrete filled square steel pipe column and beam.
(6) The joint metal piece is a T-shaped metal piece or an end plate, and the tensile resistance reinforcing material is a through-bolt made of a deformed steel rod having a screw-like part or a node-like part in a shaft part. The high-strength bolt tensile joint structure of a concrete-filled rectangular steel pipe column and a beam according to any one of (1) to (5).
(7) The joint metal fitting is a T-shaped metal fixture or an end plate, and the tensile resistance reinforcing material is a bolt with an anchor function. Force bolt tension joint structure.
本発明では、梁と接合する接合金物の両側部分を、角形鋼管柱の隅部に近い部位に高力ボルト引張接合し、併せてこの高力ボルト引張接合部間領域に、角形鋼管柱内部の充填コンクリートに埋没させる軸部を有する引張抵抗補強材を挿入・締着する簡易な接合部構造とすることにより、引張抵抗補強材の耐力と鋼管面外耐力を累加して接合部剛性と耐力を安定的に向上させることが可能になる
引張抵抗補強材として、PC鋼棒で形成した通しボルトを用いた場合には、角形鋼管柱の相対する面にも接合金物を接合、または平板(鋼管柱の相対する面に梁を接合しない場合のみ使用)を当接して、その外部側で通しボルトの挿入・締着作業を行い同時締着することができるので施工が簡便である。この場合、通しボルトに初期張力を付与して、剛性・耐力を向上させたり、軸部にネジ部や節部などを有する異形PC鋼棒を用いて、コンクリートとの付着性能を高めることで、通しボルトに十分な剛性、耐力を安定的に付与することが可能になる
引張抵抗補強材としてアンカー機能付きボルトとした場合で、軸部径より大径のアンカー部を角形鋼管柱内部にある軸部に形成する場合には、接合部が手の届かない位置にある場合、この形成作業は、角形鋼管柱とする前に行ったり、角形鋼管柱としてから特殊な施工方法を採用して行うことで1本当たりの重量を小さくでき、現場施工性が更に向上する
引張抵抗補強材を、直交方向に梁を接合するため直交配置する場合においては、直交配置する梁のフランジ位置および接合金物位置を、上下方向にずらして配置したり、引張抵抗補強材位置を上下方向にずらして配置して、直交配置する引張抵抗補強材の相互干渉を回避することが容易にできる。などの効果を奏するものである
In the present invention, the high-strength bolt tensile joint is performed on both side portions of the joint metal to be joined to the beam at a portion near the corner of the square steel pipe column, and at the same time, the region between the high-strength bolt tensile joints By adopting a simple joint structure that inserts and fastens a tensile resistance reinforcement material with a shaft part that is buried in filled concrete, the joint strength and strength are increased by accumulating the strength of the tensile resistance reinforcement material and the strength outside the steel pipe surface. It becomes possible to improve stably .
When through bolts made of PC steel rods are used as tensile resistance reinforcements, joining hardware is also joined to the opposing surface of a square steel pipe column, or flat plate (when a beam is not joined to the opposing surface of a steel pipe column) Can be fastened at the same time by inserting and tightening through bolts on the outer side. In this case, by applying initial tension to the through bolt to improve rigidity and proof stress, or by using a deformed PC steel bar having a screw part or a node part in the shaft part, the adhesion performance with concrete is increased, It is possible to stably impart sufficient rigidity and proof stress to the through bolt .
When a bolt with an anchor function is used as a tensile resistance reinforcement, and when the anchor part larger than the shaft part diameter is formed on the shaft part inside the square steel pipe column, the joint part is out of reach This forming operation can be carried out before forming the square steel pipe column, or by adopting a special construction method after forming the square steel pipe column, so that the weight per one can be reduced, and the on-site workability is further improved .
When the tensile resistance reinforcement material is arranged orthogonally to join the beams in the orthogonal direction, the flange position and the joint hardware position of the orthogonally arranged beams are shifted in the vertical direction, or the tensile resistance reinforcement material position is moved up and down. It is possible to easily avoid the mutual interference of the tensile resistance reinforcing members arranged in a shifted direction and orthogonally arranged. It produces the effects such as .
本発明は、接合金物(主体はT形金物やエンドプレートで、以下「接合金物を」という。)と引張高力ボルトを用いるコンクリート充填角形鋼管柱と梁(主体はH形断面梁であるが、溝形形状、その他形状のものを含む、以下「梁」という。)の高力ボルト引張接合構造において、梁を接合する接合金物と角形鋼管柱(主体は1〜4シーム溶接して得られる角形断面柱で、以下「角形鋼管柱」という。)を高力ボルト引張接合する場合に適用するものである。
本発明においては、角形鋼管柱に梁を接合する接合金物の両側部分を、角形鋼管柱の隅部に近い部位に高力ボルト引張接合するとともに、この接合金物の高力ボルト引張接合部間領域(より好ましくは、角形鋼管柱の幅中央よりの領域)に、角形鋼管柱内部のコンクリートに埋没させる軸部を有する、通しボルトやアンカー機能付きボルトからなる引張抵抗補強材を挿入・締着し、角形鋼管柱内部にコンクリートを充填・固化させてなるコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造であり、引張抵抗補強材の耐力と鋼管面外耐力を累加して接合部剛性と耐力を安定的に向上させるものである。
なお、引張抵抗補強材は、梁のフランジの直上領域及び直下領域に挿入・締着して効果があるが、梁フランジに作用する引張力が小さい場合には、いずれかの領域を重点補強することも考慮する。
The present invention is a joint-filled rectangular steel pipe column and beam (mainly an H-shaped cross-section beam) using joint hardware (mainly T-shaped hardware and end plate, hereinafter referred to as “joint hardware”) and tensile high-strength bolts. In a high-strength bolt tension joint structure including a groove shape and other shapes (hereinafter referred to as “beam”), a metal fitting for joining the beam and a square steel pipe column (mainly obtained by 1 to 4 seam welding). This is a square cross-section column, which is hereinafter referred to as a “square steel tube column”) and is applied to high-strength bolt tension joining.
In the present invention, the high-strength bolt tensile joint of both side portions of the joint hardware for joining the beam to the square steel pipe column at a portion near the corner of the square steel pipe pillar, and the region between the high-strength bolt tensile joint portions of this joint hardware Insert and fasten a tensile resistance reinforcing material consisting of a through bolt or anchor function bolt that has a shaft part embedded in the concrete inside the square steel pipe column (more preferably, the area from the center of the width of the square steel pipe column). This is a high strength bolt tensile joint structure of concrete filled rectangular steel pipe columns and beams that are filled and solidified inside the square steel pipe columns, and the joint rigidity is increased by adding the strength of the tensile resistance reinforcement and the out-of-plane strength of the steel pipe. It improves the yield strength stably.
The tensile resistance reinforcement is effective when inserted and tightened in the region directly above and below the beam flange. However, if the tensile force acting on the beam flange is small, either region is emphasized. Also consider.
この高力ボルト引張接合構造で、接合金物の両側部分を角形鋼管柱の隅部に近い部位で接合する引張高力ボルトとしては、JIS B 1186−1995で規定される摩擦接合用高力六角ボルト・六角ナット・平座金のセットの他、図1に示すように、軸部にナットを螺合する雄ねじを有し、締付トルク導入機構(ピンテール)を備え、ナットとピンテールを協動させ、締付トルク管理しながら締め付ける公知のトルシア形高力ボルト、あるいは、軸部にナットを螺合する雄ねじを有し、締付トルク導入機構(ピンテール)を頭部に備え、このピンテールと頭部座面に介挿した角形座金を協動させ、締付トルクを管理しながら締め付ける公知の頭部締めトルシア形高力ボルトなどを使用することができる。
本発明では、これらの引張高力ボルトを用いて接合金物を閉断面の角形鋼管柱に引張接合するため、角形鋼管柱内部側にナットを固定したり、角形鋼管柱内部側からボルト孔に高力ボルトを挿入するなどの作業が必要である。
この作業を角形鋼管柱としてから行う場合、接合部が外部から手の届かない位置にある場合には、特殊な装置を使用するが、角形鋼管柱とする前、例えば溝形成形材の状態で行っておくこともできる。このような作業を省略して、角形鋼管柱のしてから外部側で締付けができる公知のワンサイドボルトなどの他の高力ボルトの使用も考慮することができる。
In this high-strength bolt tension joint structure, a high-strength hexagon bolt for friction joining specified in JIS B 1186-1995 is used as a tensile high-strength bolt that joins both side portions of a joint metal at a portion close to the corner of a square steel pipe column.・ In addition to the set of hexagonal nuts and plain washers, as shown in Fig. 1, it has a male screw to screw the nut into the shaft, and has a tightening torque introduction mechanism (pin tail), which cooperates with the nut and pin tail, It has a well-known Torcia-type high-strength bolt that is tightened while controlling the tightening torque, or a male thread that engages a nut with the shaft, and has a tightening torque introduction mechanism (pin tail) on the head. A well-known head-clamped torcia-type high-strength bolt that can be tightened while cooperating a square washer interposed on the surface and managing the tightening torque can be used.
In the present invention, these tensile high-strength bolts are used to tension-join a metal fitting to a square steel pipe column having a closed cross section, so that a nut is fixed to the inside of the square steel pipe column, or a bolt hole is formed from the inside of the square steel pipe column to the bolt hole. Work such as inserting force bolts is required.
When this work is performed as a rectangular steel pipe column, if the joint is in an unreachable position from outside, a special device is used. You can also go there. The use of other high-strength bolts such as a well-known one-side bolt that can be tightened on the outside after forming a square steel pipe column by omitting such work can be considered.
また、本発明で用いる引張抵抗補強材としては、以下のようなものを用いることができる。
[通しボルト]
通しボルトとは、ここでは、角鋼管柱の一方の面に接合した接合金物と、他方の面に接合した接合金物または当接した平板(他方の面側に梁を接合しない場合に使用)の外側に締着部になる端部が突出する長さを有し、径がボルト孔より小径のものをいう。この通しボルトは、鋼管柱内部側にナットを用いないもので、基本的には、一方の接合金物側からボルト孔に挿入して、締着部を一方の側の接合金物と他方の接合金物または平板から突出させた状態で、一方の接合金物の外側と他方の接合金物(または平板)の外側で同時締着するものである。この通しボルトとしては、例えば以下のようなものを用いるものである。
例えば、
(1)PC鋼棒の両端部にねじ部を形成したもので、ナットとで締着部を形成可能なものであり、軸部を角形鋼管柱の内部で充填コンクリートに埋没させるものである。軸部が円断面であっても相応の剛性、耐力は得られるが、初期張力を導入することにより、剛性、耐力を強化し、通しボルト効果を更に高めることができる。
初期張力を導入する場合には、先端に張力導入機構(ピンテール)を設けて張力管理できるようにすることが有効である。また、張力導入は鋼管の変形防止の観点から、通常コンクリートを充填して固化した後に実施するが、鋼管にダイアフラムを設けて鋼管の変形を防止することで、コンクリート充填前に実施してもよい。
(2)異形PC鋼棒(異形棒鋼も可)に、ねじ状部や節状部を形成したもの)の両端部にねじ部を形成したもので、ナットとで締着部を形成可能なものであり、軸部を角形鋼管柱の内部で充填コンクリートに埋没させるものである。
この異形PC鋼棒の場合には、コンクリートとの付着性能を強化できることから、初期張力を導入することなく剛性、耐力を強化し、通しボルト効果を安定確保できる。
初期張力を導入することも考慮できる。この場合、先端に張力導入機構(ピンテール)を設けて張力管理できるようにすることが有効である。
In addition, as the tensile resistance reinforcing material used in the present invention, the following can be used.
[Through bolt]
Here, the through bolt means a joint metal joined to one surface of a square steel pipe column and a joint metal joined to the other surface or an abutting flat plate (used when the beam is not joined to the other surface). It has the length which the edge part which becomes a fastening part protrudes on the outer side, and a diameter says a diameter smaller than a bolt hole. This through bolt does not use a nut on the inside of the steel pipe column. Basically, the bolt is inserted into the bolt hole from one side of the joint hardware, and the fastening part is joined to the joint hardware on one side and the other joint hardware. Alternatively, it is fastened simultaneously on the outside of one joint metal and the other joint metal (or flat plate) in a state of protruding from the flat plate. As this through bolt, for example, the following is used.
For example,
(1) A threaded portion is formed at both ends of a PC steel rod, a fastening portion can be formed with a nut, and a shaft portion is buried in filled concrete inside a square steel pipe column. Even if the shaft portion has a circular cross section, suitable rigidity and proof stress can be obtained. However, by introducing initial tension, the rigidity and proof stress can be enhanced and the through bolt effect can be further enhanced.
When introducing the initial tension, it is effective to provide a tension introducing mechanism (pin tail) at the tip so that the tension can be managed. In addition, from the viewpoint of preventing deformation of the steel pipe, the introduction of tension is usually performed after the concrete is filled and solidified, but may be implemented before filling the concrete by providing a diaphragm in the steel pipe to prevent the deformation of the steel pipe. .
(2) A threaded part is formed at both ends of a deformed PC steel bar (which can be a deformed bar), and a threaded part can be formed with a nut. The shaft portion is buried in the filled concrete inside the square steel pipe column.
In the case of this deformed PC steel bar, the adhesion performance with concrete can be strengthened, so that rigidity and proof stress can be strengthened without introducing initial tension, and the through-bolt effect can be secured stably.
Introducing an initial tension can also be considered. In this case, it is effective to provide a tension introducing mechanism (pin tail) at the tip so that the tension can be managed.
[アンカー機能付きボルト」
アンカー機能付きボルトとは、角形鋼管柱に接合した接合金物単位で締着して用いるものであり、鋼棒の端部にねじ部を有しナットとで締着部を形成可能にしたものであり、角形鋼管柱内部の充填のコンクリートに対する付着性能を高めるアンカー部を形成した軸部をコンクリートに埋没させるものである。このアンカー機能付きボルトは、基本的には、鋼管柱内部側にナットを用いないものであるが、用いることを排除するものではない。
例えば
(1)PC鋼棒の一方端部にねじ部を形成しナットとで締着部を形成可能なものであり、角形鋼管柱の内部で充填コンクリートに埋没させる軸部に、軸径より大径の鍔状のアンカー部を有するものである。
(2)PC異形鋼棒(異形棒鋼でも可)一方端部にねじ部を形成しナットとで締着部を形成可能なものであり、角形鋼管柱の内部で充填コンクリートに埋没させる軸部にねじ状部または節状部によるボルト孔より小径の凹凸部をを有するものである。この場合に、(1)と同様に、軸部に軸径より大径の鍔状のアンカー部も形成することも考慮できる。
[Bolt with anchor function]
A bolt with an anchor function is used by fastening with a metal fitting unit joined to a square steel pipe column. It has a threaded part at the end of a steel bar and can be fastened with a nut. Yes, the shaft portion in which the anchor portion that enhances the adhesion performance of the filling inside the square steel pipe column to the concrete is formed is buried in the concrete. This bolt with an anchor function basically does not use a nut on the inner side of the steel pipe column, but does not exclude the use.
For example, (1) A threaded part can be formed at one end of a PC steel rod and a fastening part can be formed with a nut. The shaft part embedded in the filled concrete inside the square steel pipe column is larger than the shaft diameter. It has a hook-shaped anchor part with a diameter.
(2) PC deformed steel bar (or deformed steel bar is acceptable) A threaded part can be formed at one end and a fastening part can be formed with a nut, and the shaft part embedded in the filled concrete inside the square steel pipe column It has a concavo-convex portion having a smaller diameter than a bolt hole formed by a screw-like portion or a node-like portion. In this case, as in (1), it can be considered that a hook-shaped anchor portion having a diameter larger than the shaft diameter is formed on the shaft portion.
角形鋼管柱の隣接する面に接合金物を接合するために、通しボルトを直交配置する場合において、直交配置する梁のフランジ位置および接合金物位置を、上下方向にずらして配置し、直交配置する通しボルトの相互干渉を回避することができる。
また、通しボルトを、直交方向に梁を接合するため直交配置する場合において、直交配置する通しボルト位置を上下方向にずらして配置して、直交配置する通しボルトの相互干渉を回避することもできる。
When connecting through bolts orthogonally to join the metal fittings to the adjacent surfaces of the square steel pipe columns, the beam flange positions and the metal fitting positions of the beams arranged orthogonally are shifted in the vertical direction, and the through holes arranged orthogonally are arranged. Mutual interference of the bolts can be avoided.
Further, when the through bolts are arranged orthogonally so as to join the beams in the orthogonal direction, the through bolt positions arranged orthogonally can be shifted in the vertical direction to avoid mutual interference of the orthogonally arranged through bolts. .
なお、梁がH形鋼梁である場合に、接合金物としてT形金物を用いる場合では、このT形金物の水平部(ウェブ)にH形鋼梁のフランジを接合するため、T形金物は上・下フランジを接合するために上下に一対配置するものであり、高力ボルトと、通しボルトやアンカー機能付きボルトなどの引張抵抗補強材は、H形鋼梁の上・下のフランジの上面側領域と下面側領域に対応するT形金物部位にそれぞれ挿入・締着するものである。
接合金物としてエンドプレートを用いる場合では、H形鋼梁の端面を一枚のエンドプレートに突き合わせ溶接接合するが、引張高力ボルトと、通しボルトやアンカー機能付きボルトなどの引張抵抗補強材は、T形金物の場合と同様、H形鋼梁の上・下のフランジの上面側領域と下面側領域に対応するT形金物部位にそれぞれ挿入・締着するものである。
When the beam is an H-shaped steel beam and a T-shaped metal fixture is used as the joint hardware, the flange of the H-shaped steel beam is joined to the horizontal portion (web) of the T-shaped hardware. A pair of upper and lower flanges are placed on the top and bottom, and high-strength bolts and tensile resistance reinforcements such as through bolts and bolts with anchoring function are provided on the upper surface of the upper and lower flanges of the H-shaped steel beam. It is inserted and fastened to T-shaped hardware parts corresponding to the side region and the lower surface side region, respectively.
In the case of using an end plate as the joint metal, the end face of the H-shaped steel beam is butted and welded to one end plate. Tensile high strength bolts and tensile resistance reinforcements such as through bolts and anchor function bolts are As in the case of the T-shaped hardware, it is inserted and fastened to T-shaped hardware parts corresponding to the upper surface side region and the lower surface side region of the upper and lower flanges of the H-shaped steel beam, respectively.
以下に本発明の実施例1について、図1、図2、図3、図4に基づいて説明する。
この実施例1は、接合金物である上下一対のT形金物2、2と引張高力ボルト3を用いたコンクリート充填角形鋼管柱(CFT柱)1とH形断面梁4の接合構造において、T形金物2、2と角形鋼管柱1を高力ボルト引張接合する場合に適用した場合のものである。
H形断面梁4は、通常の場合、角形鋼管柱1の1〜4側面に取り付けられるが、ここでは、コンクリート充填後の状態図である図1(a)、(b)、(c)に示すように、角形鋼管柱1の相対する2側面(A側面とB側面)にT形金物2、2を介してH形鋼梁4を取り付けの場合において、角形鋼管柱1にコンクリート6充填・固化後の接合構造例を部分図で代表説明する。なお、ここでは、T形金物とH形鋼梁を接合する高力ボルトの図示は省略する。
Embodiment 1 of the present invention will be described below based on FIGS. 1, 2, 3, and 4. FIG.
The first embodiment is a joint structure of a concrete-filled square steel pipe column (CFT column) 1 and an H-shaped cross-section beam 4 using a pair of upper and lower T-shaped hardware 2 1 , 2 2 and a tensile high-strength bolt 3 that are joint hardware. , T-shaped hardware 2 1 , 2 2 and square steel pipe column 1 are applied when high-strength bolts are joined by tension.
The H-shaped cross-section beam 4 is usually attached to the side surfaces 1 to 4 of the square steel pipe column 1, but here, in FIGS. 1A, 1 </ b> B, and 1 </ b> C, which are state diagrams after concrete filling. As shown, in the case where the H-shaped steel beam 4 is attached to the two opposite side surfaces (A side surface and B side surface) of the square steel pipe column 1 via the T-shaped hardware 2 1 , 2 2 , the concrete 6 An example of the joining structure after filling and solidification will be described with reference to partial views. Here, the illustration of the high-strength bolt that joins the T-shaped hardware and the H-shaped steel beam is omitted.
この実施例1は、H形鋼梁4の上下フランジ4a、4bを高力ボルトで接合する上下一対のT形金物2、2を、角形鋼管柱1の相対する2側面(A側面とB側面)に当接して、角形鋼管柱1の隅部に近く引張抵抗の大きい部位に引張高力ボルト3で接合するとともに、角形鋼管柱1の相対する2側面に接合した各T形金物2、2における引張高力ボルト3の間に、それぞれ、引張抵抗補強材である通しボルト(ここではPC鋼棒で形成)5を貫通させ、相対するT形金物から突出させた両端部を同時締着する。
これにより、軸部を角形鋼管柱1に充填・固化させたコンクリート6に埋没させて、通しボルト5の耐力と鋼管面外耐力を累加して、H形鋼梁4から作用する引張力に対する剛性と耐力を強化し、接合部耐力を強化したものである。
なお、この実施例1での通しボルト5は、引張高力ボルト3と高さ方向にずらして、引張高力ボルト3とH形鋼梁4の上フランジ4aまたは4bとの間の内側領域に配置しているが、両側の引張高力ボルト3間に横並びに配置しても、引張抵抗補強材としての機能を十分に発揮する。
In this first embodiment, a pair of upper and lower T-shaped hardwares 2 1 , 2 2 for joining the upper and lower flanges 4 a, 4 b of the H-shaped steel beam 4 with high-strength bolts are arranged on two side surfaces (A side surface and The T-shaped metal fittings 2 which are in contact with the two side surfaces of the square steel pipe column 1 and are joined to a portion having a high tensile resistance near the corner of the square steel pipe column 1 with the tensile high strength bolt 3. Between the tensile high-strength bolts 3 in 1 and 2 2 , through-bolts (in this case, formed of PC steel rods) 5, which are tensile resistance reinforcing materials, are penetrated, and both end portions protruded from the opposing T-shaped metal fittings. Fasten at the same time.
As a result, the shaft portion is buried in the concrete 6 filled and solidified in the square steel pipe column 1, and the strength of the through bolt 5 and the strength outside the surface of the steel pipe are accumulated, and the rigidity against the tensile force acting from the H-shaped steel beam 4 is increased. Strength is strengthened and joint strength is strengthened.
The through-bolt 5 in the first embodiment is shifted in the height direction from the tensile high-strength bolt 3 in an inner region between the tensile high-strength bolt 3 and the upper flange 4a or 4b of the H-shaped steel beam 4. Although it arrange | positions, even if it arrange | positions side by side between the tension | tensile_strength high volt | bolt 3 of both sides, the function as a tensile resistance reinforcement material is fully exhibited.
ここで用いた、上下一対のT形金物2、2は、例えばH形鋼から切り出し加工して得られるものであり、図2に示すように、角形鋼管柱1に当接される垂直フランジ2fと、H形鋼梁4のフランジに当接される水平ウェブ2uで形成されるものである。
垂直フランジ2fには、角形鋼管柱1に接合する引張高力ボルト3用のボルト孔2oと、通しボルト5用のボルト孔2pを、それぞれ2個づつ、水平ウェブ2uの上側領域と下側領域に対称に設け、また、水平ウェブ2uには、H形鋼梁4のフランジに接合する高力ボルトのボルト孔2qを設けたものである。
ここでは、上側T形金物2の水平ウェブ2uの下面には、H形鋼梁4の上フランジ4aの上面を当接して、高力ボルトで接合し、下側T形金物2の水平ウェブ2uの上面には、H形鋼梁4の下フランジ4bの下面を当接して、高力ボルトで接合するようにしている。
The pair of upper and lower T-shaped metal pieces 2 1 , 2 2 used here are obtained by cutting out from, for example, H-shaped steel, and as shown in FIG. It is formed of a flange 2f and a horizontal web 2u that comes into contact with the flange of the H-shaped steel beam 4.
The vertical flange 2f has two bolt holes 2o for the tensile high-strength bolts 3 and two bolt holes 2p for the through bolts 5 to be joined to the square steel pipe column 1, respectively, an upper region and a lower region of the horizontal web 2u. In addition, the horizontal web 2 u is provided with a bolt hole 2 q of a high-strength bolt that is joined to the flange of the H-shaped steel beam 4.
Here, the lower surface of the horizontal web 2u upper T-shaped fittings 2 1, the upper surface of the upper flange 4a of the H-shaped steel beam 4 abuts, joined by high-strength bolts, the lower T-shaped fittings 2 2 horizontal The lower surface of the lower flange 4b of the H-shaped steel beam 4 is brought into contact with the upper surface of the web 2u and joined with a high-strength bolt.
引張高力ボルト3は、図3(a)に示すように、軸部の一方の側には、座金11を介挿してナット8を螺合する雄ネジ部3sを有し頭部3h端にピンテール3pを有するものであり、頭部3hの座面に張力導入時に、ピンテール3pと協動させる角形座金10を介挿した、頭部締めトルシア形高力ボルトである。
この頭部締めトルシア形高力ボルト3は、角形鋼管柱1の相対する側面に当接したT形金物(2、2)の外部側からボルト孔2oに挿入するものであり、角形鋼管柱1の内部側でナット8と螺合し、T形金物(2、2)の外部側でピンテール3pで導入張力を管理し頭締めして締結するものである。
なお、引張高力ボルト3として、ここでは頭部締めトルシア形高力ボルトを用いたが、図3(b)に示すように、雄ネジ部3sの先端にピンテール3pを有する公知のトルシア形高力ボルト3を、角形鋼管柱1の内部側からボルト孔に挿入し、T形金物側の外部側で導入張力を管理してナット8締めにより締結することも考慮できる。
As shown in FIG. 3A, the tensile high-strength bolt 3 has a male screw portion 3s on one side of the shaft portion and a nut 8 inserted through a washer 11 at the end of the head 3h. This is a head-clamped torcia-type high-strength bolt having a pin tail 3p and having a square washer 10 that cooperates with the pin tail 3p when tension is introduced into the seating surface of the head 3h.
This head-clamped torcia-type high-strength bolt 3 is inserted into the bolt hole 2o from the outside of a T-shaped metal piece (2 1 , 2 2 ) that is in contact with the opposite side surfaces of the square steel pipe column 1. The nut 8 is screwed on the inner side of the column 1 and the introduction tension is controlled by the pin tail 3p on the outer side of the T-shaped metal piece (2 1 , 2 2 ) and tightened by tightening the head.
Here, as the tension high-strength bolt 3, a head-clamped Torcia-type high-strength bolt is used, but as shown in FIG. 3B, a known Torcia-type high-strength having a pin tail 3p at the tip of the male screw portion 3s. a force bolts 3 1, is inserted from the inner side of the RHS column 1 to the bolt holes, to manage the introduction tension outside of the T-shaped hardware side can consider also be fastened by a nut 8 tightening.
通しボルト5は、PC鋼棒で形成したもので、図4(a)に示すように、角形鋼管柱1の相対する2側面を貫通させて、この2側面に引張高力ボルトで接合したT形金物に同時に締着するために、角形鋼管柱1の外径+T形金物2の垂直フランジ2fの厚さ+(ナット8高さ+座金11厚)×2+αの長さを有するものであり、軸部の両端部に座金11を介挿してナット8を螺合する雄ねじ部5sとを有するものである。
この通しボルト5は、角形鋼管柱1の一方の側面に接合したT形金物の外部側からボルト孔2pに挿入して、両端部の雄ねじ部5sを角形鋼管柱1の相対する側面に接合したT形金物の外部側に突出させ、それぞれに、座金11を介挿したナット8を螺合して同時締着することができる。
なお、通しボルト5は、ここでは締着時に張力導入を行わない形式のものを用いたが、例えば、図4(b)に示すように、雄ねじ部5sの先端にピンテール5を設け締着時に張力導入を行う形式の通しボルト5を用いることができる。また、図4(a)、(b)に示したものは、両端部に雄ねじ部5sを形成したものであるが、図4(c)に示すように、一方の端部に雄ねじ部5sを形成し、他方の端部に頭部5tを形成して、ナット8を一方の端部側で行うようした通しボルト5を用いることも考慮できる。
The through-bolt 5 is formed of a PC steel rod. As shown in FIG. 4 (a), two opposing side surfaces of the square steel pipe column 1 are penetrated and joined to these two side surfaces with a tensile high-strength bolt. In order to be simultaneously fastened to the metal mold, the outer diameter of the square steel pipe column 1 + the thickness of the vertical flange 2f of the T metal mold 2 + (the height of the nut 8 + the thickness of the washer 11) x 2 + α, It has a male screw part 5s which inserts a washer 11 into both ends of the shaft part and screwes a nut 8 into it.
The through bolt 5 is inserted into the bolt hole 2p from the outside of the T-shaped metal piece joined to one side surface of the square steel pipe column 1, and the male screw portions 5s at both ends are joined to the opposite side surfaces of the square steel pipe column 1. It can project to the outside of the T-shaped metal piece, and can be fastened simultaneously by screwing a nut 8 with a washer 11 interposed therebetween.
Here, the through bolt 5 is of a type that does not introduce tension at the time of fastening. For example, as shown in FIG. 4 (b), a pin tail 5 is provided at the tip of the male screw portion 5s, and at the time of fastening. it can be used through bolt 5 1 format for performing tensioning. 4 (a) and 4 (b) are formed by forming male screw portions 5s at both ends, but as shown in FIG. 4 (c), the male screw portions 5s are provided at one end portion. formed, to form the head 5t at the other end, you can also consider the use of through bolts 5 2 which is to perform the nut 8 at one end side.
以下に本発明の実施例2について、図5、図6に基づいて説明する。
この実施例2は、接合金物として、図6に示すようなエンドプレート12と引張高力ボルト3を用いたコンクリート充填角形鋼管柱(CFT柱)1とH形鋼梁4の接合構造において、H形鋼梁4を接合したエンドプレート12と角形鋼管柱1を高力ボルト引張接合する場合に適用した場合のものである。
H形鋼梁4は、通常の場合、角形鋼管柱1の1〜4側面に取り付けられるが、ここでは、図5(a)、(b)、(c)に示すように、角形鋼管柱1の相対する2側面(A側面とB側面)にエンドプレート12を介してH形鋼梁4を取り付けの場合において、角形鋼管柱1にコンクリート6充填・固化後の接合構造例を部分図で代表説明する。
この実施例2は、接合金物としてH形鋼梁4の端面を溶接で接合したエンドプレート12を用いた点、引張抵抗補強材として用いる通しボルト(PC鋼棒)に初期張力を導入するために、雄ねじ部5sの先端にピンテールを有する通しボルト(PC鋼棒)5を用いた点で、実施例1と異なるものである。実施例1と共通する部分については説明を省略する。
A second embodiment of the present invention will be described below with reference to FIGS.
This Example 2 is a joint structure of a concrete-filled square steel pipe column (CFT column) 1 and an H-shaped steel beam 4 using an end plate 12 and a tensile high strength bolt 3 as shown in FIG. This is a case where the end plate 12 to which the shaped steel beam 4 is joined and the square steel pipe column 1 are applied to the high strength bolt tension joining.
In general, the H-shaped steel beam 4 is attached to the side surfaces 1 to 4 of the square steel pipe column 1. Here, as shown in FIGS. 5 (a), (b), and (c), the square steel pipe column 1. In the case where the H-shaped steel beam 4 is attached to the two opposite side surfaces (A side surface and B side surface) via the end plate 12, the example of the joining structure after filling and solidifying the concrete steel 6 to the square steel pipe column 1 is represented by a partial view. explain.
This Example 2 uses the end plate 12 in which the end faces of the H-shaped steel beam 4 are joined by welding as the joint hardware, and introduces initial tension to the through bolt (PC steel rod) used as the tensile resistance reinforcing material. in that using through bolts (PC steel bars) 5 1 having a pintail at the tip of the male screw portion 5s, is different from the first embodiment. A description of portions common to the first embodiment will be omitted.
この実施例2では、H形鋼梁4の端面を溶接wで接合したエンドプレート12を、角形鋼管柱1の相対する2側面(A側面とB側面)に当接して、角形鋼管柱1の隅部に近く引張抵抗の大きい部位に引張高力ボルト3で接合するとともに、角形鋼管柱1の相対する2側面に接合したエンドプレート12における引張高力ボルト3の近傍領域に、それぞれ、引張抵抗補強材である通しボルト5を貫通させ、角形鋼管柱1の相対する2側面に接合したエンドプレート12の外部側から突出させ両端部を同時締着する。
これにより、軸部を角形鋼管柱1に充填・固化させたコンクリート6に埋没させて、通しボルト5の耐力と鋼管面外耐力を累加して、H形鋼梁4から作用する引張力に対する剛性と耐力を強化し、接合部耐力を強化したものである。
なお、この実施例1での通しボルト5は、引張高力ボルト3の近傍領域に配置する。より具体的には、引張高力ボルト3とH形鋼梁4の上フランジ4aまたは4bとの間の内側領域に配置しているが、両側の引張高力ボルト3間に横並びに配置しても、引張抵抗補強材としての機能を十分に発揮する。
In Example 2, the end plate 12 in which the end faces of the H-shaped steel beam 4 are joined by welding w is brought into contact with two opposite side surfaces (A side surface and B side surface) of the square steel pipe column 1 to The tensile high strength bolt 3 is joined to a portion near the corner portion where the tensile resistance is large, and the tensile resistance is applied to a region in the vicinity of the tensile high strength bolt 3 in the end plate 12 joined to two opposite side surfaces of the square steel pipe column 1. the through bolts 5 1 a reinforcement material passed through, simultaneously fastened to both end portions protrude from the outer side of the end plate 12 joined to two opposite sides of the RHS column 1.
Thus, while buried in concrete 6 filled and solidified a shaft portion to RHS Column 1, to accumulate the yield strength and the steel pipe surface outside Strength of through bolts 5 1, for the tensile force applied from the H-shaped steel beam 4 Strength and strength are strengthened, and joint strength is strengthened.
Incidentally, through-bolts 5 1 in the first embodiment, arranged in the region near the tensile high strength bolt 3. More specifically, it is arranged in the inner region between the tensile high strength bolt 3 and the upper flange 4a or 4b of the H-shaped steel beam 4, but it is arranged side by side between the tensile high strength bolts 3 on both sides. However, it fully functions as a tensile resistance reinforcement.
ここで用いた、エンドプレート12は、例えば厚鋼板からなり、図6に示すように、H形鋼梁4の端面を溶接w接合したものであり、角形鋼管柱1に接合する引張高力ボルト3のボルト孔12oと、通しボルト5のボルト孔12pを、それぞれ2個づつ、H形鋼梁4の上フランジ4a、下フランジ4bの上側領域と下側領域に対称に設けたものである。
また、通しボルト5は、PC鋼棒で形成したもので、初期張力を導入するために、図4(b)に示すように、雄ネジ部5sの先端にピンテール5pを有するものであり、角形鋼管柱1の相対する2側面を貫通させて、この2側面に引張高力ボルト3で接合したエンドプレート12に同時に締着するために、少なくとも角形鋼管柱1の外径+エンドプレート12の厚さ+(ナット8高さ+座金11厚さ)×2+α+ピンテール5pの長さを有するものであり、軸部の両端部に座金11を介挿してナット8を螺合して導入張力を管理しながら締着するものである。
なお、通しボルト5は、ここでは両端部で締着時に張力導入を行う形式のものを用いたが、一方の端部にのみピンテール5pを有する雄ネジ5s部を形成し、他方の端部に頭部を形成して、一方の端部で締着時に張力導入を行う形式のものを用いることもできる。
また、図4(a)や、図4(c)に示すように、張力導入を行うためのピンテールを有しない形式の通しボルト(5)を用いることもできる。
The end plate 12 used here is made of, for example, a thick steel plate. As shown in FIG. 6, the end surface of the H-shaped steel beam 4 is welded and joined, and is a tensile high strength bolt that is joined to the square steel pipe column 1. 3 and the bolt hole 12o of the bolt holes 12p of the through bolt 5 1, 2 at a time, respectively, the upper flange 4a of the H-shaped steel beam 4 but on symmetrically in the upper and lower regions of the lower flange 4b .
Further, the through bolt 5 1, which was formed in the PC steel bars, in order to introduce the initial tension, as shown in FIG. 4 (b), those having a pintail 5p on the tip of the male threaded portion 5s, In order to penetrate the two opposite side surfaces of the square steel pipe column 1 and simultaneously fasten to the end plate 12 joined to the two side surfaces by the tensile high-strength bolts 3, at least the outer diameter of the square steel pipe column 1 + the end plate 12 Thickness + (Nut 8 height + Washer 11 thickness) × 2 + α + Pintail 5p length. Insertion nuts 8 are inserted into both ends of the shaft to screw in the nut 8 to control the introduction tension. While tightening.
Incidentally, the through bolt 5 1, here it was used of the type performing the tensioning when fastened at both ends forms a male thread 5s portion having a pintail 5p only at one end, the other end It is also possible to use a type in which a head is formed and tension is introduced at one end at the time of fastening.
Further, as shown in FIG. 4A and FIG. 4C, a through bolt (5) of a type that does not have a pin tail for introducing tension may be used.
以下に本発明の実施例3について、図7、図8に基づいて説明する。
この実施例3は、実施例1と同様、接合金物である上下一対のT形金物2、2と引張高力ボルト3を用いたコンクリート充填角形鋼管柱(CFT柱)1とH形断面梁4の接合構造において、T形金物2、2と角形鋼管柱1を高力ボルト引張接合する場合に適用した場合のものである。
H形断面梁4は、通常の場合、角形鋼管柱1の1〜4側面に取り付けられるが、ここでは、図7(a)、(b)、(c)に示すように、角形鋼管柱1の相対する2側面(A側面とB側面)にT形金物2、2を介してH形鋼梁4を取り付けの場合において、角形鋼管柱1にコンクリート6充填・固化後の接合構造例を部分図で代表説明する。
この実施例3は、引張抵抗補強材として用いる通しボルトとして、軸部に節状部を有する異形PC鋼棒からなる通しボルト13を用いた点で、実施例1と異なるものである。実施例1と共通する部分については説明を省略する。
A third embodiment of the present invention will be described below with reference to FIGS.
As in Example 1, Example 3 is a concrete-filled square steel tube column (CFT column) 1 and an H-shaped cross section using a pair of upper and lower T-shaped metal components 2 1 and 2 2 and tensile high-strength bolts 3, which are joint hardware. In the joint structure of the beam 4, this is applied when the T-shaped hardware 2 1 , 2 2 and the square steel pipe column 1 are joined by high strength bolt tension joining.
The H-shaped cross-section beam 4 is normally attached to 1 to 4 side surfaces of the square steel pipe column 1, but here, as shown in FIGS. 7 (a), (b), and (c), the square steel tube column 1 is provided. Example of joint structure after filling and solidifying concrete 6 in square steel pipe column 1 when attaching H-shaped steel beam 4 via T-shaped hardware 2 1 , 2 2 to two opposite side surfaces (A side surface and B side surface) Will be described with reference to a partial view.
Example 3 is different from Example 1 in that a through bolt 13 made of a deformed PC steel rod having a node-like portion at the shaft portion was used as a through bolt used as a tensile resistance reinforcing material. A description of portions common to the first embodiment will be omitted.
この実施例3では、H形鋼梁4の上下フランジ4a、4bを高力ボルトで接合する上下一対のT形金物2、2を、角形鋼管柱1の相対する2側面(A側面とB側面)に当接して、角形鋼管柱1の隅部に近く引張抵抗の大きい部位に引張高力ボルト3で接合するとともに、角形鋼管柱1の相対する2側面に接合した各T形金物2、2における引張高力ボルト3の間に、それぞれ、引張抵抗補強材である通しボルト(ここではPC異形鋼棒で形成)13を貫通させ、相対するT形金物から突出させた両端部を同時締着する。
これにより、軸部を角形鋼管柱1に充填・固化させたコンクリート6に埋没させて、通しボルト13の耐力と鋼管面外耐力を累加して、H形鋼梁4から作用する引張力に対する剛性と耐力を強化し、接合部耐力を強化したものである。
なお、この実施例3での通しボルト13は、引張高力ボルト3と高さ方向にずらして、引張高力ボルト3とH形鋼梁4の上フランジ4aまたは4bとの間の内側領域に配置しているが、両側の引張高力ボルト3間に横並びに配置しても、引張抵抗補強材としての機能を十分に発揮する。
In Example 3, a pair of upper and lower T-shaped hardwares 2 1 , 2 2 for joining the upper and lower flanges 4 a, 4 b of the H-shaped steel beam 4 with high-strength bolts are used as two opposing side surfaces (A side surface and The T-shaped metal fittings 2 which are in contact with the two side surfaces of the square steel pipe column 1 and are joined to a portion having a high tensile resistance near the corner of the square steel pipe column 1 with the tensile high strength bolt 3. Between the tensile high-strength bolts 3 in 1 and 2 2 , through-bolts (here, formed of PC deformed steel bars) 13, which are tensile resistance reinforcing materials, are penetrated and protruded from opposite T-shaped hardware. At the same time.
As a result, the shaft portion is buried in the concrete 6 filled and solidified in the square steel pipe column 1, and the strength of the through bolt 13 and the strength outside the surface of the steel pipe are added to increase the rigidity against the tensile force acting from the H-shaped steel beam 4. Strength is strengthened and joint strength is strengthened.
The through bolt 13 in the third embodiment is shifted in the height direction from the tensile high-strength bolt 3 and is formed in an inner region between the tensile high-strength bolt 3 and the upper flange 4a or 4b of the H-shaped steel beam 4. Although it arrange | positions, even if it arrange | positions side by side between the tension | tensile_strength high volt | bolt 3 of both sides, the function as a tensile resistance reinforcement material is fully exhibited.
通しボルト13は、軸部に節部13xを有する異形PC鋼棒で形成したもので、図8(a)に示すように、角形鋼管柱1の相対する2側面を貫通させて、この2側面に引張高力ボルト3で接合したT形金物に同時に締着するために、角形鋼管柱1の外径+T形金物2の垂直フランジ2fの厚さ+(ナット8高さ+座金11厚さ)×2+αの長さを有するものであり、軸部の両端部に座金11を介挿してナット8を螺合する雄ねじ部13sとを有するものである。
この通しボルト13は、角形鋼管柱1の一方の側面に接合したT形金物の外部側からボルト孔2pに挿入して、両端部の雄ねじ部15s部を角形鋼管柱1の相対する2側面に接合したT形金物の外部側に突出させ、それぞれに、座金11を介挿したナット8を螺合して同時締着することができる。
The through bolt 13 is formed of a deformed PC steel rod having a node portion 13x at the shaft portion. As shown in FIG. 8 (a), the two opposite side surfaces of the square steel pipe column 1 are penetrated to form the two side surfaces. In order to simultaneously fasten to a T-shaped metal piece joined with a tensile high-strength bolt 3, the outer diameter of the square steel pipe column 1 + the thickness of the vertical flange 2f of the T-shaped metal piece 2 + (the height of the nut 8 + the thickness of the washer 11) It has a length of × 2 + α, and has male screw portions 13 s that are fitted with nuts 8 at both end portions of the shaft portion with the washers 11 interposed therebetween.
The through bolt 13 is inserted into the bolt hole 2p from the outside of the T-shaped metal piece joined to one side surface of the square steel pipe column 1, and the male screw portions 15s at both ends are formed on the two opposite side surfaces of the square steel pipe column 1. It can be made to project to the outside of the joined T-shaped metal parts, and nuts 8 with washers 11 inserted into each can be screwed together and fastened simultaneously.
なお、通しボルトとして、軸部に節部13xを有する異形PC鋼棒で形成した通しボルト13を用いたが、図8(b)に示すように、軸部にネジ状部13zを有する異形PC鋼棒で形成した通しボルト13を用いることができる。この通しボルト13、13は、締着時に張力導入を行わない形式のものにしているが、例えば雄ねじ部13sの先端にピンテールを設け締着時に張力導入を行う形式の通しボルトを用いることもできる。
また、いずれの形式の通しボルトの場合も、一方の端部に雄ねじ部を形成し、他方の端部に頭部を形成して、ナットを一方の端部側で行うようした通しボルトを用いることも考慮できる。
As the through bolt, a through bolt 13 formed of a deformed PC steel rod having a node portion 13x at the shaft portion was used. However, as shown in FIG. 8B, a modified PC having a screw-like portion 13z at the shaft portion. it can be used through bolt 13 1 formed in the steel bar. The tie rods 13, 13 1, although the of the type that does not perform tensioning during fastened, also be used in the form of a through bolt for performing tensioning when fastened provided pintail example the tip of the male thread portion 13s it can.
In addition, in the case of any type of through bolt, a through bolt is used in which a male screw portion is formed at one end and a head is formed at the other end so that the nut is performed on one end side. Can also be considered.
以下に本発明の実施例4について、図9、図10に基づいて説明する。
この実施例4は、上下一対のT形金物2、2と引張高力ボルト3を用いたコンクリート充填角形鋼管柱(CFT柱)1とH形断面梁4の接合構造において、T形金物2、2と鋼管柱1を高力ボルト引張接合する場合に適用した場合のものである。
H形断面梁4は、通常の場合、角形鋼管柱1の1〜4側面に取り付けられるが、ここでは、図9(a)、(b)、(c)に示すように、角形鋼管柱1の相対する2側面にH形断面梁4を取り付けの場合において、角形鋼管柱1にコンクリート6充填・固化後の接合構造例を部分図で代表説明する。
この実施例4は、実施例1、3と同様、上下一対のT形金物2、2を引張高力ボルト3で接合する点では同じであり、引張抵抗補強材として、短寸のアンカー機能付き高力ボルト14を用いる点で、実施例1、3と異なるものである。実施例1、実施例3と共通する部分については説明を省略する。
A fourth embodiment of the present invention will be described below with reference to FIGS.
This Example 4 shows a T-shaped hardware in a joint structure of a concrete-filled square steel pipe column (CFT column) 1 and an H-shaped cross-section beam 4 using a pair of upper and lower T-shaped hardware 2 1 , 2 2 and a tensile high strength bolt 3. This is applied when 2 1 , 2 2 and the steel pipe column 1 are subjected to high strength bolt tensile joining.
The H-shaped cross-section beam 4 is normally attached to the side surfaces 1 to 4 of the square steel pipe column 1, but here, as shown in FIGS. 9 (a), (b), and (c), the square steel pipe column 1 In the case where the H-shaped cross-section beam 4 is attached to the two opposite side surfaces, an example of a joint structure after filling and solidifying the concrete 6 to the square steel pipe column 1 will be described with reference to a partial view.
The fourth embodiment is the same as the first and third embodiments in that the pair of upper and lower T-shaped metal pieces 2 1 , 2 2 are joined by the tensile high-strength bolt 3, and a short anchor is used as the tensile resistance reinforcing material. This is different from the first and third embodiments in that a high strength bolt 14 with a function is used. Descriptions of parts common to the first and third embodiments are omitted.
H形鋼梁4の上下フランジ4a、4bを高力ボルトで接合する上下一対のT形金物2、2を、角形鋼管柱1の相対する2側面(A側面とB側面)に当接して、角形鋼管柱1の隅部に近く引張抵抗の大きい部位に引張高力ボルト3で接合するとともに、角形鋼管柱1の相対する2側面に接合した各T形金物2、2における引張高力ボルト3の間に、それぞれ、引張抵抗補強材であるアンカー機能付き高力ボルト14を挿入・締着する。
これにより、アンカー機能付き軸部を角形鋼管柱1に充填・固化させたコンクリート6に埋没させて、アンカー機能付き高力ボルト14耐力と鋼管面外耐力を累加して、H形鋼梁4から作用する引張力に対する剛性と耐力を強化し、接合部耐力を強化したものである。
この実施例4でのアンカー機能付き高力ボルト14は、引張高力ボルト3と高さ方向にずらして、引張高力ボルト3とH形鋼梁4の上フランジ4aまたは4bとの間の内側領域に配置しているが、両側の引張高力ボルト3間に横並びに配置しても、引張抵抗補強材としての機能を十分に発揮する。
A pair of upper and lower T-shaped hardwares 2 1 , 2 2 that join the upper and lower flanges 4 a, 4 b of the H-shaped steel beam 4 with high-strength bolts are brought into contact with two opposite side surfaces (A side surface and B side surface) of the square steel pipe column 1. In addition, the tensile high-strength bolts 3 are joined to portions having a large tensile resistance near the corners of the square steel pipe columns 1 and tensiles in the respective T-shaped hardwares 2 1 and 2 2 joined to two opposite side surfaces of the square steel pipe columns 1. Between the high-strength bolts 3, high-strength bolts 14 with anchor functions, which are tensile resistance reinforcing materials, are inserted and fastened.
As a result, the shaft portion with the anchor function is buried in the concrete 6 filled and solidified in the square steel pipe column 1, and the high strength bolt 14 with anchor function and the out-of-plane strength are added to the H-shaped steel beam 4. The strength and strength against the tensile force acting are strengthened, and the joint strength is strengthened.
The high-strength bolt 14 with an anchor function in this Example 4 is shifted in the height direction from the tensile high-strength bolt 3, and the inner side between the tensile high-strength bolt 3 and the upper flange 4 a or 4 b of the H-shaped steel beam 4. Although it arrange | positions in the area | region, even if it arrange | positions side by side between the tensile high-strength bolts 3 of both sides, the function as a tensile resistance reinforcement material is fully exhibited.
ここで用いたアンカー機能付き高力ボルト14は、図10(a)に示すように、ねじ状部14zを形成したPC異形鋼棒からなり、軸部の一方の先端部に座金11を介挿したナット8に螺合する雄ねじ部14sを有するものであり、他方の先端部側でねじ状部14zにボルト孔径より大径の、雌ねじ部を有する鍔状アンカー板15を締着したものである。
このアンカー機能付き高力ボルト14の挿入・締着は、鍔状アンカー板15を締着して角形鋼管柱1の内部側からボルト孔に挿入したり、鍔状アンカー板15を角形鋼管柱1の内部側に軽接着しておき、外部側から挿入したねじ状部14zを螺合して所望の長さ締付け内部側に押圧し、鍔状アンカー板15を剥がして角形鋼管柱1の内部の所望の位置させるなどの施工方法を採用して行うことができる。
このアンカー機能付き高力ボルト14の軸部のねじ状部14zと鍔状アンカー板15は、角形鋼管柱1の内部に充填・固化したコンクリート6に埋没したとき、このコンクリート6に対してアンカー効果を発揮するものである。
これにより、コンクリート6の抵抗力をアンカー機能付き高力ボルト14を介して角形鋼管柱1の接合部に作用させ、この接合部における圧縮力と引張力に対する接合部性能 (剛性、耐力)を向上させることができる。
なお、ここで用いたアンカー機能付き高力ボルト14は、ねじ状部14zと鍔状アンカー板15を有するものであるが、ねじ状部14zを有しない例えばPC鋼棒にアンカー板15を固定したアンカー機能付き高力ボルトや、頭部をアンカー部とする高力ボルトを角形鋼管柱1の内部側からボルト孔に挿入し、外部側で締着することもできる。
また、10(b)に示すように、軸部にボルト孔径より小径の外径を有する例えば節状部14x(ねじ状部14zでも可)を形成したアンカー機能付き高力ボルト14とし、節状部14xをアンカー部として機能させることもできる。この場合には、図10(a)に示すアンカー機能付き高力ボルト14に比較して、アンカー効果は劣るが、外部側から容易に挿入できるので施工が容易である。
As shown in FIG. 10A, the high-strength bolt 14 with an anchor function used here is composed of a PC deformed steel rod having a threaded portion 14z, and a washer 11 is inserted at one end of the shaft portion. 14, which has a male threaded portion 14 s to be screwed into the nut 8, and a hook-shaped anchor plate 15 having a female threaded portion larger than the bolt hole diameter is fastened to the threaded portion 14 z on the other tip side. .
The high-strength bolt 14 with an anchor function is inserted and fastened by fastening the hook-shaped anchor plate 15 and inserting the bolt-shaped anchor plate 15 into the bolt hole from the inside of the square steel pipe column 1 or by inserting the hook-shaped anchor plate 15 into the square steel pipe column 1. The screw-like portion 14z inserted from the outside side is screwed and pressed to the inner side of the desired length of tightening, the hook-shaped anchor plate 15 is peeled off, and the inside of the square steel pipe column 1 is peeled off. It can be performed by adopting a construction method such as a desired position.
When the threaded portion 14z of the shaft portion of the high-strength bolt 14 with an anchor function and the hook-shaped anchor plate 15 are buried in the concrete 6 filled and solidified in the square steel pipe column 1, an anchor effect is exerted on the concrete 6. To demonstrate.
As a result, the resistance force of the concrete 6 is applied to the joint portion of the square steel pipe column 1 via the high-strength bolt 14 with an anchor function, and the joint portion performance (rigidity and proof stress) against the compressive force and the tensile force at this joint portion is improved. Can be made.
In addition, although the high strength bolt 14 with an anchor function used here has the screw-shaped part 14z and the hook-shaped anchor board 15, the anchor board 15 was fixed to the PC steel rod which does not have the screw-shaped part 14z, for example. A high-strength bolt with an anchor function or a high-strength bolt having a head as an anchor portion can be inserted into the bolt hole from the inside of the square steel pipe column 1 and fastened on the outside.
Further, as shown in 10 (b), the shank bolt hole diameter than the anchor function high-strength bolts 14 1 formed, for example, nodular portion 14x (also acceptable threaded portion 14z) has an outer diameter of the small diameter, the nodes The shape portion 14x can also function as an anchor portion. In this case, the anchor effect is inferior to that of the high-strength bolt 14 with an anchor function shown in FIG. 10A, but construction is easy because it can be easily inserted from the outside.
実施例5を、図11(a)、(b)に基づいて説明する。
この実施例5は、角形鋼管柱1の隣り合う2側面(ここではA側面とC側面)にH形鋼梁4を上下一対のT形金物2、2を介して引張高力ボルト3で接合する場合で、実施例1のように、引張高力ボルト3の間に、引張抵抗補強材(ただし通しボルト5)を挿入・定着するコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例である。
この接合構造例では、隣合うA側面とC側面に、H形鋼梁4を接合するために、同じT形金物2、2を同じ位置に接合し、通しボルト5の配置を同じにした場合には、通しボルト5を直交配置すると干渉して施工が困難になるため、直交する通しボルト5を干渉しない配置にしたものである。実施例1と共通する部分については説明を省略する。
A fifth embodiment will be described with reference to FIGS. 11 (a) and 11 (b).
In the fifth embodiment, an H-shaped steel beam 4 is attached to two adjacent side surfaces (here, A side surface and C side surface) of the square steel pipe column 1 through a pair of upper and lower T-shaped hardware 2 1 , 2 2. As in Example 1, the high strength of the concrete-filled square steel pipe column and the H-shaped steel beam in which a tensile resistance reinforcing material (through bolt 5) is inserted and fixed between the tensile high strength bolts 3 as in Example 1. It is a bolt tension joint structure example.
In this joining structure example, in order to join the H-shaped steel beam 4 to the adjacent A side surface and C side surface, the same T-shaped hardware 2 1 , 2 2 is joined at the same position, and the arrangement of the through bolts 5 is the same. In such a case, if the through-bolts 5 are arranged orthogonally, the construction becomes difficult due to interference, so the orthogonal through-bolts 5 are arranged so as not to interfere. A description of portions common to the first embodiment will be omitted.
この実施例5では、実施例1と同様に、T形金物2、2での引張高力ボルト3と通しボルト5の配置を同じにして、図11(c)、(d)に示すように、角形鋼管柱1の隣り合うA側面とC側面に接合のT形金物の位置を高さ方向に距離a分ずらして、直交配置するA側面側の通しボルト5aとC側面側の通しボルト5aとの干渉を回避するものである。
なお、この実施例5では、角形鋼管柱1のA側面に相対するB側面およびC側面に相対するD側面には、H形鋼梁4を接合しないため、T形金物2、2は不要であるが、通しボルト5a、5bを安定的に、かつ強固に定着するために、平板16を当接している。B側面およびD側面にH形鋼梁4を接合する場合には、平板16ではなくT形金物2、2を引張高力ボルト3で接合するが、通しボルト5a、5bの配置は同じである。
In Example 5, as in Example 1, the arrangement of the tensile high-strength bolt 3 and the through-bolt 5 in the T-shaped hardware 2 1 , 2 2 is the same, as shown in FIGS. 11 (c) and 11 (d). In this way, the through-holes 5a on the A side and the side on the C side are arranged so that the positions of the T-shaped metal parts joined to the A side and C side of the square steel pipe column 1 are shifted by a distance a in the height direction. This avoids interference with the bolt 5a.
In the fifth embodiment, since the H-shaped steel beam 4 is not joined to the B-side facing the A-side and the D-side facing the C-side of the square steel pipe column 1, the T-shaped hardware 2 1 , 2 2 is Although not necessary, the flat plate 16 is abutted in order to fix the through bolts 5a and 5b stably and firmly. When the H-shaped steel beam 4 is joined to the B side surface and the D side surface, the T-shaped hardware 2 1 , 2 2 is joined with the tensile high strength bolt 3 instead of the flat plate 16, but the arrangement of the through bolts 5 a, 5 b is the same. It is.
実施例6を、図12(a)、(b)、図13に基づいて説明する。
この実施例6は、角形鋼管柱1の隣り合う2側面(ここではA側面とC側面)にH形鋼梁4を上下一対のT形金物を介して引張高力ボルト3で接合する場合で、実施例5のように、引張高力ボルト3の間に、引張抵抗補強材(ここでは通しボルト5)を挿入・定着するコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例である。
この実施例6の接合構造例では、隣り合うA側面とC側面に、H形鋼梁4を接合するために、サイズ(垂直フランジの高さ)および形状が異なり、通しボルト5a、5bの配置も異なるT形金物を用いた点で実施例5と異なるものである。
例えば、図13の直交形式1に示すような組み合わせとしたものであり、A側面には、長さ(高さ)Lsで、両側の引張高力ボルト3のボルト孔17o間に通しボルト5aのボルト孔17pを横並びに設けた、上下一対のT形金物17、17を接合し、隣り合うC側面には、長さ(高さ)Lで、両側の引張高力ボルト3のボルト孔18o間に通しボルト5bのボルト孔18pを横並びに設けた、上下一対のT形金物18、18を、A側面のT形金物17、17の長さ中心と一致させ、直交するA側面の通しボルト5aとC側面の通しボルト5bを高さ方向にずらして配置するものである。このような配置にして、隣合うA側面とC側面の通しボルト5aと5bを直交配置しても、干渉しないようにするものである。実施例5と共通する部分については説明を省略する。
Example 6 will be described with reference to FIGS. 12A, 12B, and 13. FIG.
This Example 6 is a case where the H-shaped steel beam 4 is joined to two adjacent side surfaces (here, the A side surface and the C side surface) of the square steel pipe column 1 with a tensile high-strength bolt 3 via a pair of upper and lower T-shaped hardware. As in Example 5, a high strength bolt tensile joint structure of a concrete-filled rectangular steel pipe column and an H-shaped steel beam in which a tensile resistance reinforcing material (here, through bolt 5) is inserted and fixed between the tensile high strength bolts 3 is fixed. It is an example.
In the example of the joining structure of Example 6, the size (the height of the vertical flange) and the shape are different in order to join the H-shaped steel beam 4 to the adjacent A side and C side, and the through bolts 5a and 5b are arranged. Is different from Example 5 in that a different T-shaped hardware is used.
For example, it is a combination as shown in the orthogonal form 1 in FIG. 13, and the side A has a length (height) Ls between the bolt holes 17o of the tensile high-strength bolts 3 on both sides. A pair of upper and lower T-shaped hardware 17 1 , 17 2 provided side by side with bolt holes 17p are joined, and the length (height) L on the adjacent C side surface is a bolt hole of the tensile high strength bolt 3 on both sides. A pair of upper and lower T-shaped metal pieces 18 1 and 18 2 provided side by side with the bolt holes 18p of the through bolt 5b are aligned with the center of the length of the T-shaped metal objects 17 1 and 17 2 on the A side and are orthogonal to each other. The through bolt 5a on the A side and the through bolt 5b on the C side are shifted in the height direction. In such an arrangement, even if the through bolts 5a and 5b on the adjacent A side surface and C side surface are orthogonally arranged, interference does not occur. A description of portions common to the fifth embodiment is omitted.
実施例6のように、隣り合うA側面とC側面のT形金物17(17)と18(18)の長さ中心を一致させて配置する場合で、通しボルト5a、5bを干渉しないように直交配置する場合の他の直交形式としては、図13の直交形式2、3、4などがある。直交形式2、3、4では、A側面とC側面のT形金物の組み合わせが直交形式1と異なっているが、ここでは、直交形式1の場合と同じ符号を用いて、A側面とC側面のボルト5a、5bを干渉しないように直交配置する場合の各T形金物17(17)、18(18)での引張高力ボルト3のボルト孔17o、18oと、通しボルト5a、5bのボルト孔17p、18pの配置例を図示する。
なお、実施例5、6では、接合金物としてT形金物を隣り合う2側面(A側面とC側面)に接合する場合での直交配置する通しボルトの干渉回避例を示したが、T形金物に代えて、エンドプレートを用いた場合も、同様の考え方で直交配置する通しボルトの干渉を回避することができる。
In the case where the length centers of the T-shaped metal pieces 17 1 (17 2 ) and 18 1 (18 2 ) on the adjacent A side surface and C side surface are aligned with each other as in the sixth embodiment, the through bolts 5a and 5b are Other orthogonal formats in the case of orthogonal arrangement so as not to interfere with each other include orthogonal formats 2, 3, and 4 in FIG. In the orthogonal forms 2, 3, and 4, the combination of the T-shaped hardware on the A side and the C side is different from the orthogonal form 1, but here, the same reference numerals as in the orthogonal form 1 are used, and the A side and the C side are used. Bolt holes 17o and 18o of the tensile high-strength bolt 3 in the T-shaped metal pieces 17 1 (17 2 ) and 18 1 (18 2 ) when the bolts 5a and 5b are arranged orthogonally so as not to interfere with each other, and the through bolt 5a An arrangement example of 5b bolt holes 17p, 18p is illustrated.
In Examples 5 and 6, an example of avoiding interference of through-bolts arranged orthogonally in the case of joining a T-shaped metal piece to two adjacent side surfaces (A side surface and C side surface) as a joint metal piece is shown. Instead of using the end plate, it is possible to avoid interference of through-bolts arranged orthogonally in the same way.
角形鋼管柱に接合金物と引張り高力ボルトを介してH形鋼梁を接合するコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造において、本発明を適用し、引張り高力ボルト接合部近傍に引張り抵抗補強材を併設した場合の効果を評価するために、1/2モデルによる部分引張実験により、接合部における角形鋼管面外耐力・剛性(接合部耐力)を評価した。図14に本発明例と従来例の評価結果(荷重Pと変形δの関係で示す)を示す。右図は、実験対象の接合構造例を平面断面図で示したものである。
本発明例Aは、実施例1に相当する接合構造(初期張力有りと無しの場合)、Bは、実施例3に相当する接合構造(初期張力無しの場合)、Cは、実施例4に相当する接合構造(初期張力無しの場合)で、本発明例ではいずれも引張高力ボルトと引張抵抗補強材(通しボルトまたはアンカー機能付き高力ボルト)を併用したものである。Dは、従来例で、引張抵抗補強材を併用しない接合構造である。本発明例、従来例は、高力ボルトの種類は異なるが、材質、軸径、本数、配置は略同じにし、その他の各部、各要素の条件は略同じにした。
Applying the present invention to a high strength bolt tensile joint structure of a concrete-filled square steel pipe column and H-shaped steel beam that joins a H-shaped steel beam to a square steel pipe column via a joint metal and a tensile high strength bolt, the tensile high strength bolt In order to evaluate the effect when a tensile resistance reinforcing material is provided in the vicinity of the joint, the out-of-plane strength and rigidity (joint strength) of the square steel pipe at the joint were evaluated by a partial tensile experiment using a 1/2 model. FIG. 14 shows the evaluation results (indicated by the relationship between the load P and the deformation δ) of the present invention example and the conventional example. The figure on the right shows an example of the bonding structure of the test object in a cross-sectional plan view.
Invention Example A is a joining structure corresponding to Example 1 (when there is no initial tension), B is a joining structure corresponding to Example 3 (when there is no initial tension), and C is according to Example 4. The corresponding joint structure (in the case of no initial tension) is a combination of a tensile high strength bolt and a tensile resistance reinforcing material (through bolt or high strength bolt with an anchor function). D is a conventional structure which is a joint structure that does not use a tensile resistance reinforcing material. In the present invention example and the conventional example, the types of high-strength bolts are different, but the material, shaft diameter, number and arrangement are substantially the same, and the conditions of other parts and elements are substantially the same.
評価実験結果は、図14に示す通りで、引張高力ボルトのみを使用したDの従来例に対して、通しボルトを併用したA、Bの本発明例の場合には、耐力、剛性に飛躍的な向上が認められた。特にAで初期張力を導入した場合に剛性が最も向上することが明確になった。アンカー機能付き高力ボルトを併用したCの場合には、Dの従来例に対して、耐力・剛性とも若干の向上が認められた。   The results of the evaluation experiment are as shown in FIG. 14, and in the case of the present invention examples of A and B in which a through bolt is used in combination with the conventional example of D using only a tensile high-strength bolt, the yield strength and rigidity are greatly improved. Improvement was observed. In particular, it became clear that the rigidity was most improved when initial tension was introduced at A. In the case of C in which a high-strength bolt with an anchor function was used in combination, a slight improvement in both proof stress and rigidity was recognized as compared with the conventional example of D.
本発明は、上記の各実施例の内容に限定されるものではない。例えば、引張高力ボルト、通しボルト、アンカー機能付き高力ボルトの構造(形式、アンカー部形成条件)、材質、配置(本数を含む)、挿入・締着(定着)構造、接合金物構造、梁の種類、接合金物との接合手段、座金の有無、施工手順などについては、接合対象物、接合部配置、要求される接合部性能などに応じて、上記請求項を満足する範囲内で変更のあるものである。   The present invention is not limited to the contents of the above embodiments. For example, tensile high-strength bolts, through bolts, high-strength bolts with anchor function (model, anchor formation conditions), material, arrangement (including number), insertion / fastening (fixing) structure, joint hardware structure, beam The type of joint, the means for joining with the joint hardware, the presence or absence of the washer, the construction procedure, etc. are changed within the range satisfying the above claims, depending on the object to be joined, the joint placement, the required joint performance, etc. There is something.
(a)図は、本発明の実施例1によるコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例を示す側断面説明図、(b)図は、(a)図のAa−Ab矢視断面平面説明図。(A) A figure is a side cross-sectional explanatory drawing which shows the example of the high strength bolt tension | tensile_strength joining structure of the concrete filling square steel pipe column and H-shaped steel beam by Example 1 of this invention, (b) A figure is Aa of (a) figure. -Ab arrow cross-section top explanatory drawing. (c)図は、図1(a)図のAおよびB側面の正面説明図。(C) The figure is front explanatory drawing of the A and B side surface of FIG. 1 (a) figure. 実施例1で用いられたT形金物例を示す立体説明図。3 is a three-dimensional explanatory diagram illustrating an example of a T-shaped metal piece used in Example 1. (a)実施例1で用いた引張高力ボルト・セット例を示す側面説明図、(b)図は、他の引張高力ボルト・セット例を示す側面説明図。(A) Side explanatory drawing which shows the example of a tensile high strength volt | bolt set used in Example 1, (b) The figure is a side explanatory drawing which shows the other example of a tensile high volt | bolt set. (a)図は、実施例1で用いた通しボルト・セット例を示す側面説明図、(b)図、(c)図は、他の通しボルト・セット例を示す側面説明図。(A) The figure is side explanatory drawing which shows the example of a through-bolt set used in Example 1, (b) The figure, (c) figure is side explanatory drawing which shows another through-bolt set example. 本発明の実施例2によるコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例を示す側断面説明図、(b)図は、(a)図のBa−Bb矢視断面平面説明図。Side cross-section explanatory drawing which shows the example of the high strength volt | bolt tension | tensile_strength joining structure of the concrete filling square steel pipe column and H-shaped steel beam by Example 2 of this invention, (b) A figure is Ba-Bb arrow sectional plane of (a) figure. Illustration. (c)図は、図5(a)図のAおよびB側面の正面説明図。(C) The figure is front explanatory drawing of the A and B side surface of FIG. 5 (a) figure. 実施例2で用いたH形鋼梁を溶接接合したエンドプレート例を示す立体説明図。The solid explanatory drawing which shows the end plate example which welded and joined the H-shaped steel beam used in Example 2. FIG. 本発明の実施例3によるコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例を示す側断面説明図、(b)図は、(a)図のCa−Cb矢視断面平面説明図。Side cross-section explanatory drawing which shows the example of the high strength volt | bolt tension | tensile_strength joint structure of the concrete filling square-shaped steel pipe column and H-shaped steel beam by Example 3 of this invention, (b) A figure is a cross-sectional plane of the Ca-Cb arrow of (a) figure. Illustration. (c)図は、図7(a)図のAおよびB側面の正面説明図。(C) The figure is front explanatory drawing of the A and B side surface of Fig.7 (a) figure. (a)図は、実施例3で用いた通しボルト・セット例を示す側面説明図、(b)図、他の通しボルト・セット例を示す側面説明図。(A) The figure is a side explanatory view showing an example of a through bolt set used in the third embodiment, (b) is a side explanatory view showing another example of a through bolt set. (a)図は、本発明の実施例4によるコンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例を示す側断面説明図、(b)図は、(a)図のDa−Db矢視断面平面説明図。(A) A figure is a side cross-section explanatory drawing which shows the example of the high strength volt | bolt tension joining structure of the concrete filling square steel pipe column and H-shaped steel beam by Example 4 of this invention, (b) A figure is Da of (a) figure. -Db arrow cross-section top explanatory drawing. (c)図は、図9(a)図のAおよびB側面の正面説明図。(C) The figure is front explanatory drawing of the A and B side surface of Fig.9 (a) figure. (a)図は、実施例4で用いたアンカー機能付き高力ボルト・セット例を示す側面説明図、(b)図は、他のアンカー機能付き高力ボルト・セット例を示す側面説明図。(A) A side explanatory view showing an example of a high strength bolt set with an anchor function used in Example 4, (b) A side explanatory view showing another example of a high strength bolt with an anchor function set. (a)図は、本発明の実施例5によるコンクリート充填角形管柱とH形鋼梁の高力ボルト引張接合構造例で、角形鋼管柱の隣り合う2側面のT形金物に通しボルトを配置する場合に、直交配置する通しボルトの干渉回避構造例を示す断面説明図、(b)図は、(a)図のEa−Eb矢視断面平面説明図。(A) The figure is an example of a high strength bolt tensile joint structure of a concrete-filled rectangular tube column and an H-shaped steel beam according to Example 5 of the present invention, and through bolts are arranged on T-shaped metal fittings on two side surfaces of the rectangular steel tube column. FIG. 4B is a cross-sectional explanatory view showing an example of an interference avoidance structure of through-bolts arranged orthogonally, and FIG. 5B is an explanatory cross-sectional plan view taken along arrow Ea-Eb in FIG. (c)図は、図11(a)図{(b)図のC側面}の正面説明図、(d)図は、図11(a)図のA側面の正面説明図。FIG. 11 (c) is a front explanatory view of FIG. 11 (a), {the C side surface of FIG. 11 (b)}, and FIG. 11 (d) is a front explanatory view of the A side surface of FIG. 11 (a). (a)図は、本発明の実施例6によるコンクリート充填角形管柱とH形鋼梁の高力ボルト引張接合構造例で、角形鋼管柱の隣り合う2側面に接合のT形金物に通しボルトを配置する場合に、直交配置する通しボルトの干渉回避構造例を示すC側面の正面説明図、(b)図は、(a)図のFa−Fb矢視断面平面説明図。(A) The figure is an example of a high-strength bolt tension joint structure of a concrete-filled rectangular tube column and an H-shaped steel beam according to Example 6 of the present invention. Is a front side explanatory view of the C side showing an example of an interference avoidance structure for through-bolts arranged orthogonally, (b) is a cross-sectional plan view taken along the line Fa-Fb in FIG. (c)図は、図12(a)図のA側面の正面説明図。(C) The figure is front explanatory drawing of the A side surface of Fig.12 (a) figure. 本発明の実施例6に示すように角形鋼管柱の隣り合う2側面のT形金物に通しボルトを配置する場合に、直交配置する通しボルトの干渉を回避する、2側面のT形金物のボルト孔配置例(直交形式例)を示す説明図。As shown in the sixth embodiment of the present invention, when through-bolts are arranged on T-shaped metal fixtures on two adjacent side surfaces of a square steel pipe column, the two-side T-shaped metal bolts avoid interference of through-bolts arranged orthogonally. Explanatory drawing which shows the example of hole arrangement | positioning (an orthogonal form example). 本発明の評価実験のため、実験対象とした各コンクリート充填角形鋼管柱とH形鋼梁の高力ボルト引張接合構造例を示す平面断面説明図。The plane cross-section explanatory drawing which shows the example of the high strength volt | bolt tension joining structure of each concrete filling square steel pipe column and H-shaped steel beam made into the experiment object for evaluation experiment of this invention.
符号の説明Explanation of symbols
1 角形鋼管柱 2 上側T形金物
上側T形金物 2f 垂直フランジ
2u 水平ウェブ 2o ボルト孔(引張高力ボルト)
2p ボルト孔(通しボルト)
3 引張高力ボルト(頭締めトルシア形高力ボルト)
引張高力ボルト(トルシア形高力ボルト)
3h 頭部 3s 雄ねじ部
3p ピンテール 4 H形鋼梁
4a 上フランジ 4b 下フランジ
4u ウェブ 4o ボルト孔
5、5 通しボルト(PC鋼棒)
通しボルト(PC鋼棒)(初期張力有り)
5a、5b 通しボルト(PC鋼棒)(直交配置)
5s 雄ねじ部 5t 頭部
6 コンクリート 8 ナット
10 角座金 11 座金
12 エンドプレート 12o ボルト孔(引張高力ボルト)
12p ボルト孔(通しボルト)
13、13 通しボルト(異形PC鋼棒)
13s 雄ねじ部 13x 節状部
13z ねじ状部 14 アンカー機能付き高力ボルト
14s 雄ねじ部 14x 節状部
14z ねじ状部 15 鍔状アンカー板
16 平板 17 上側T形金物
17 下側T形金物 17f 垂直フランジ
17o ボルト孔(引張高力ボルト) 17p ボルト孔(通しボルト)
17u 水平ウェブ 18 上側T形金物
18 下側T形金物 18f 垂直フランジ
18o ボルト孔(引張高力ボルト) 18p ボルト孔(通しボルト)
18u 水平ウェブ
DESCRIPTION OF SYMBOLS 1 Square steel pipe pillar 2 1 Upper T-shaped metal hardware 2 2 Upper T-shaped metal hardware 2f Vertical flange 2u Horizontal web 2o Bolt hole (tensile high strength bolt)
2p bolt hole (through bolt)
3 Tensile high-strength bolt (head tightening torcia-type high-strength bolt)
3 1 Tensile high strength bolt (Torsia type high strength bolt)
3h Head 3s Male thread 3p Pin tail 4 H-shaped steel beam 4a Upper flange 4b Lower flange 4u Web 4o Bolt hole 5, 5 2 through bolt (PC steel rod)
5 1 through bolt (PC steel bar) (with initial tension)
5a, 5b Through bolt (PC steel bar) (orthogonal arrangement)
5s Male thread 5t Head 6 Concrete 8 Nut 10 Square washer 11 Washer 12 End plate 12o Bolt hole (tensile high strength bolt)
12p bolt hole (through bolt)
13, 13 1- bolt bolt (deformed PC steel bar)
13s Male thread portion 13x Node-shaped portion 13z Screw-shaped portion 14 High-strength bolt with anchor function 14s Male screw portion 14x Node-shaped portion 14z Screw-shaped portion 15 Anchor-shaped anchor plate 16 Flat plate 17 1 Upper T-shaped hardware 17 2 Lower T-shaped hardware 17f Vertical flange 17o Bolt hole (tensile high strength bolt) 17p Bolt hole (through bolt)
17u Horizontal web 18 1 Upper T-shaped hardware 18 2 Lower T-shaped hardware 18f Vertical flange 18o Bolt hole (tensile high strength bolt) 18p Bolt hole (through bolt)
18u horizontal web

Claims (7)

  1. 接合金物と高力ボルトを用いるコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造において、
    角形鋼管柱の少なくとも一側面に接合金物を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物を引張接合するとともに、
    当該接合した接合金物における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように、引張抵抗補強材を角形鋼管柱に締着させ、
    当該引張抵抗補強材を締着させた角形鋼管柱の内部にコンクリートを充填して、固化させるコンクリートに引張抵抗補強材の軸部を埋没させ、
    これにより引張抵抗補強材の耐力と鋼管面外耐力を累加させて、接合金物に接合する梁から伝達される引張力に対する剛性と接合部耐力を強化させることを特徴とするコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。
    In the high strength bolt tension joint structure of concrete filled square steel pipe columns and beams using joint hardware and high strength bolts,
    Attach the joint metal to at least one side surface of the square steel pipe column, and tensile joint the joint metal using a plurality of high-strength bolts at a portion near the corner of the square steel pipe column and having a large tensile resistance.
    At the portion between the high-strength bolts in the joined metal fitting, the tensile resistance reinforcing material is fastened to the square steel pipe column so that the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column,
    Filling the inside of the square steel pipe column to which the tensile resistance reinforcing material is fastened with concrete, burying the shaft portion of the tensile resistance reinforcing material in the concrete to be solidified,
    A concrete-filled square steel pipe column characterized by increasing the strength of the tensile resistance reinforcement and the out-of-plane strength of the steel pipe, strengthening the rigidity against the tensile force transmitted from the beam joined to the joint metal and the joint strength. High strength bolt tension joint structure of beams.
  2. 角形鋼管柱の少なくとも一側面およびこれと相対する側面に接合金物を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物の各々を引張接合するとともに、Attach the metal fitting to at least one side of the square steel pipe column and the side opposite to it, and use a plurality of high strength bolts to connect each of the metal fittings at a location near the corner of the square steel pipe column and where the tensile resistance is large. While tensile joining,
    当該接合した接合金物における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように且つ両端部が接合金物の各々から突出するように、角形鋼管柱を挟んで相対する接合金物を貫通する長さを有する引張抵抗補強材を角形鋼管柱に締着させることを特徴とする請求項1に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。In the part between the high-strength bolts in the joined metal fitting, the square steel pipe is so that the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column and both ends protrude from each of the joining hardware. 2. The concrete-filled square steel pipe column and the high-strength bolt tension of the beam according to claim 1, wherein a tensile resistance reinforcing material having a length penetrating through the opposite metal fittings sandwiching the column is fastened to the square steel pipe column. Junction structure.
  3. 角形鋼管柱の少なくとも一側面に接合金物を、これと相対する側面に平板を当接して、角形鋼管柱の隅部に近く引張抵抗の大きい部位にて、複数の高力ボルトを用いて接合金物と平板の各々を引張接合するとともに、A metal fitting is attached to at least one side of the square steel pipe column and a flat plate is abutted to the opposite side surface, using a plurality of high-strength bolts near the corner of the square steel pipe column and having high tensile resistance. And each of the flat plate
    当該接合した接合金物と平板の各々における高力ボルトの間の部位にて、引張抵抗補強材の軸部が角形鋼管柱の内部側となるように且つ両端部が接合金物と平板の各々から突出するように、角形鋼管柱を挟んで相対する接合金物と平板を貫通する長さを有する引張抵抗補強材を角形鋼管柱に締着させることを特徴とする請求項1に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。At the portion between the high strength bolts in each of the bonded metal fitting and the flat plate, the shaft portion of the tensile resistance reinforcing material is on the inner side of the square steel pipe column, and both ends protrude from each of the bonding hardware and the flat plate. 2. The concrete-filled square steel pipe according to claim 1, wherein a tensile resistance reinforcing material having a length penetrating through a flat metal plate and a flat plate sandwiched between the square steel pipe columns is fastened to the square steel pipe columns. Column and beam high-strength bolt tension joint structure.
  4. 角形鋼管柱の一側面およびこれと相対する側面、ならびに前記一側面の隣の側面およびこれと相対する側面に接合金物を引張接合する場合において、隣り合う側面の接合金物の高さ位置または引張抵抗補強材の高さ位置を上下方向にずらして、直交する引張抵抗補強材の相互干渉を回避することを特徴とする請求項2に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。In the case of joining a joint metal to one side surface of the square steel pipe column and the side surface opposite to the one side surface and the side surface adjacent to the one side surface and the side surface opposite to the one side surface, 3. The concrete-filled square steel pipe column and beam high-strength bolt tensile joint structure according to claim 2, wherein the height position of the reinforcing material is shifted in the vertical direction to avoid mutual interference between the orthogonal tensile resistance reinforcing materials. .
  5. 角形鋼管柱の一側面に接合金物を、これと相対する側面に平板を、ならびに前記一側面の隣の側面に接合金物を、これと相対する側面に平板を引張接合する場合において、隣り合う側面の接合金物の高さ位置または引張抵抗補強材の高さ位置を上下方向にずらして、直交する引張抵抗補強材の相互干渉を回避することを特徴とする請求項3に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。In the case of joining a joint metal to one side of a square steel pipe column, a flat plate to the side opposite thereto, and a joint metal to the side adjacent to the one side, and a flat plate to the side opposite thereto, adjacent side faces 4. The concrete filled square steel pipe according to claim 3, wherein the height position of the joint metal fitting or the height position of the tensile resistance reinforcing material is shifted in the vertical direction to avoid mutual interference of the orthogonal tensile resistance reinforcing materials. Column and beam high-strength bolt tension joint structure.
  6. 前記接合金物が、T形金物またはエンドプレートで、The joining hardware is a T-shaped hardware or an end plate,
    前記引張抵抗補強材が、軸部にねじ状部または節状部を有する異形鋼棒からなる通しボルトであることを特徴とする請求項1〜5のいずれか1項に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。The concrete-filled square steel pipe according to any one of claims 1 to 5, wherein the tensile resistance reinforcing material is a through bolt made of a deformed steel rod having a screw-like part or a node-like part in a shaft part. Column and beam high-strength bolt tension joint structure.
  7. 前記接合金物が、T形金物またはエンドプレートで、The joining hardware is a T-shaped hardware or an end plate,
    前記引張抵抗補強材が、アンカー機能付きボルトであることを特徴とする請求項1に記載のコンクリート充填角形鋼管柱と梁の高力ボルト引張接合構造。2. The high strength bolt tensile joint structure of a concrete-filled rectangular steel pipe column and beam according to claim 1, wherein the tensile resistance reinforcing material is a bolt with an anchor function.
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CN105064503A (en) * 2015-08-12 2015-11-18 广州大学 Steel tube and core tube mixed structure
CN105155684A (en) * 2015-08-14 2015-12-16 浙江东南网架股份有限公司 Steel frame integrated member for concrete core tube structures and assembly method thereof

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CN101914952A (en) * 2010-07-23 2010-12-15 华南理工大学 Connecting joint between hollow steel tube concrete column and steel girder and construction method thereof
CN101914951B (en) * 2010-08-31 2011-12-14 武汉长丰赛博思钢结构工程有限公司 Method and device for reversely installing bolt of tubular member
KR101124446B1 (en) 2011-06-13 2012-03-26 주식회사 포스코건설 Combining apparatus and guiding bracket for joint portion of concrete filled tube and combining method using the same
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CN104179256A (en) * 2014-09-16 2014-12-03 福州大学 Rectangular concrete filled steel tube column and steel beam single-side bolt connecting joint and construction method thereof
CN105064503A (en) * 2015-08-12 2015-11-18 广州大学 Steel tube and core tube mixed structure
CN105155684A (en) * 2015-08-14 2015-12-16 浙江东南网架股份有限公司 Steel frame integrated member for concrete core tube structures and assembly method thereof

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