JP2007231644A - Jointing construction method for ligneous structural member and joint structure - Google Patents

Jointing construction method for ligneous structural member and joint structure Download PDF

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JP2007231644A
JP2007231644A JP2006055674A JP2006055674A JP2007231644A JP 2007231644 A JP2007231644 A JP 2007231644A JP 2006055674 A JP2006055674 A JP 2006055674A JP 2006055674 A JP2006055674 A JP 2006055674A JP 2007231644 A JP2007231644 A JP 2007231644A
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structure material
female screw
wood
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wooden
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JP4741386B2 (en
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Yutaka Abe
裕 安部
Toshihiro Kusunoki
寿博 楠
Hideo Oka
日出夫 岡
Masahiro Yukawa
真広 油川
Yuichi Kozuka
裕一 小塚
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Takenaka Komuten Co Ltd
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<P>PROBLEM TO BE SOLVED: To provide a jointing construction method used for a ligneous structure constructed by columns and beams being wooden structural members and being carried out by comparatively simple construction without impairing the design property of the ligneous structure to achieve vibration control action by absorbing energy generated when earthquake occurs and to provide a joint structure. <P>SOLUTION: This jointing construction method comprises a process for drilling a plurality of prepared holes in the axial direction of ligneous structural member from a butt end of the member to form a female screw on an inner peripheral face of the prepared hole, a process for screwing an anchor member having a hollow cylindrical shape into the female screw of the ligneous structural member and fixing it, a process for threadedly joining a male screw part of a connection bolt with a female screw hole in the anchor member to mount the connection bolt on the ligneous structural member, and a process for joining a rear end part of the connection bolt protruding from the butt end of the ligneous structural member with a joint block. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、製材又は集成材若しくは単板積層材(LVL)等による木質構造材である柱や梁で構築する木造構造物に好適に実施される接合工法の技術分野に属する。更に云えば、木質構造の意匠性を損なわずに、比較的簡単な施工で実施でき、しかも地震時等のエネルギーを吸収して制震作用を期待できる接合工法の技術分野に属する。   The present invention belongs to the technical field of a joining method which is preferably implemented for a wooden structure constructed of pillars and beams, which are wooden structural materials such as lumber, laminated wood, or single plate laminated material (LVL). Furthermore, it belongs to the technical field of a joining method that can be carried out with relatively simple construction without impairing the design of the wooden structure, and that can be expected to have a seismic control effect by absorbing energy during an earthquake.

柱や梁に木質構造材を使用して木造構造物を構築する場合に、重要なことは接合部の構成である。木造構造物の場合、接合部の設計の良否が、施工性および構造物の安全性と耐久性およびデザインの評価に直接影響するからである。
規模が大きい木造構造物の断面が大きい木質構造材の接合工法ないし接合構造に関する従来技術として、例えば下記の特許文献1には、木質構造材(柱材)の梁接合位置に、雌ネジ管を貫通させて設置し、前記雌ネジ管へねじ込むボルトにより同柱の梁接合位置に継ぎ手金具の片側半分を固定する。その一方、梁材の端部にも材軸方向に雌ネジ管を埋め込み、この雌ネジ管へねじ込むボルトによって前記継ぎ手金具の他側半分を固定する。そして、前記一対の継ぎ手金具部材を突き合わせ、接合プレートを重ね合わせボルト止めにより柱と梁を接合する構成が開示されている。しかし、接合部に前記の継ぎ手金具が大きく武骨に露出して木質構造材の意匠性を損なうし、重い構造になる。
When constructing a wooden structure using a wooden structure material for a column or a beam, what is important is the configuration of the joint. This is because, in the case of a wooden structure, the quality of the joint design directly affects the workability, the safety and durability of the structure, and the evaluation of the design.
As a conventional technique related to a joining method or joining structure of a wooden structure material having a large cross section of a large wooden structure, for example, in Patent Document 1 below, a female screw pipe is provided at a beam joining position of a wooden structure material (column material). One side half of the joint fitting is fixed to the beam joint position of the same column by a bolt that is installed to penetrate through the female screw tube. On the other hand, an internal thread pipe is embedded in the end of the beam material in the axial direction of the beam, and the other half of the joint fitting is fixed by a bolt screwed into the internal thread pipe. And the structure which abuts a pair of joint metal fitting members, joins a joining plate, and joins a column and a beam by bolting is disclosed. However, the joint fitting is greatly exposed at the joint and exposed to the bone, and the design of the wooden structure material is impaired, resulting in a heavy structure.

特許文献2に開示された接合方法は、木質柱の梁接合位置に貫通させた孔へターンバックル等の接合金物を通し、一方、木質梁の接合部には材軸方向に穴を設け、この穴へ前記接合金物の端部を差し込み、垂直孔から前記接合金物の端部に用意したコッタ孔へ楔(コッタ)を打ち込んで結合すると記載されている。この接合方法によれば、柱梁接合部に接合金物が露出しないし、楔効果で強い耐力を持続できる。しかし、接合金物の構造が複雑で、製作が面倒で高価なものとなる。また、柱、梁への加工度が高く、断面欠損が大きい欠点が認められる。   In the joining method disclosed in Patent Document 2, a joint metal such as a turnbuckle is passed through a hole penetrated to a beam joining position of a wooden pillar, while a hole is provided in a material axis direction at a joining portion of a wooden beam. It is described that the end of the joint metal is inserted into the hole, and a wedge (cotter) is driven into the cotter hole prepared at the end of the joint metal from the vertical hole. According to this joining method, the joint hardware is not exposed at the column beam joint, and a strong proof stress can be maintained by the wedge effect. However, the structure of the joint hardware is complicated, and the production is troublesome and expensive. In addition, there is a defect that the degree of processing to columns and beams is high and the cross-sectional defect is large.

更に、特許文献3および4に開示された接合構造は、梁における柱接合位置に、ほぞ用接合金物を垂直に貫通させ、これを水平に通した複数のボルトで固定する。前記接合金物の上下に突き出たプレートは、柱の接合仕口に形成したスリットへ差し込み、水平方向に複数のピンを差して固定する構成である。この接合構造の場合にも、柱梁接合部に金物は露出しないが、多数のボルトやピンを通すので、その頭が出現する。また、金物を通す孔空け加工やスリットの形成加工などに手数が掛かるし、接合金物の組み立てや固定に熟練した技術が必要と認められる。   Further, in the joint structures disclosed in Patent Documents 3 and 4, the tenon joint metal is vertically penetrated at the column joint position in the beam, and is fixed by a plurality of bolts that are horizontally passed. The plate protruding above and below the metal joint is inserted into a slit formed in a column joint, and is fixed by inserting a plurality of pins in the horizontal direction. Even in this joint structure, the hardware is not exposed at the beam-column joint, but the head appears because a large number of bolts and pins are passed. In addition, it takes time for drilling holes through metal and forming slits, and it is recognized that skilled techniques are required for assembling and fixing metal fittings.

特開平8−120791号公報Japanese Patent Laid-Open No. 8-120791 特開2000−265554号公報JP 2000-265554 A 特開2002−356917号公報JP 2002-356717 A 特開2003−328437号公報JP 2003-328437 A

上述した従来の木質構造材の接合工法や接合構造は、それぞれ固有の作用効果を奏するものと認められる。しかし、例えば特許文献1の技術は比較的高い強度と剛性が得られるものの、接合部に前記の継ぎ手金具が大きく武骨に露出して木質構造としての意匠性を損なうし、重い構造になる欠点が認められる。また、接合部の破壊性状は、主に木質構造材へねじ込まれた大径ボルトの引き抜き破壊に支配され、脆性的でエネルギー吸収能力が低いから、耐震安全性の面で大いに問題がある。   It is recognized that the conventional wood structure material joining method and joining structure described above each have their own functions and effects. However, for example, although the technique of Patent Document 1 can obtain relatively high strength and rigidity, the joint fitting is greatly exposed to the bones at the joint, and the design as a wooden structure is impaired, resulting in a heavy structure. Is recognized. In addition, the fracture characteristics of the joints are mainly governed by pulling fracture of large-diameter bolts screwed into the wooden structure material, and are brittle and have low energy absorption capability, so there is a great problem in terms of seismic safety.

特許文献2の技術は、接合部の引き抜き反力を楔に期待する構成であるが、木質構造における楔は木材の収縮や振動により緩むので、定期的に「緩み」の検査が不可欠である。しかし、実際問題として、一度完成した木造構造物の柱梁架構の接合部を定期的に検査することは至難である。
特許文献3の接合構造は、通し柱の柱梁架構の接合には適用できないという問題点がある。また、梁と柱の接合部に曲げモーメントの伝達を期待できない構成である。
一方、特許文献4の接合構造は、逆に、梁と柱の接合部に曲げモーメントの伝達性能向上を試みた技術である。しかし、梁内のボルトは木材にとって強度的に最も弱い繊維と直交方向に配置された構成であるから、十分大きな曲げモーメントの伝達を望み難い。通し柱の接合に適用できないという問題点も認められる。
The technique of Patent Document 2 is a structure that expects the pulling reaction force of the joint to the wedge. However, since the wedge in the wooden structure is loosened due to contraction or vibration of the wood, it is indispensable to periodically check for “loosening”. However, as a practical matter, it is extremely difficult to periodically inspect the joints of the column-and-beam frames of a once completed wooden structure.
The joint structure of Patent Document 3 has a problem that it cannot be applied to the joining of through-column column beam frames. In addition, the bending moment cannot be transmitted to the joint between the beam and the column.
On the other hand, the joint structure of Patent Document 4 is a technique that attempts to improve the transmission performance of the bending moment at the joint between the beam and the column. However, since the bolts in the beam are arranged in a direction orthogonal to the fiber having the weakest strength for wood, it is difficult to expect transmission of a sufficiently large bending moment. There is also a problem that it cannot be applied to through-column joining.

本発明の目的は、連結用ボルトに普通鋼又は低降伏点鋼材を使用して接合することにより、木質構造材の接合部における応力を制御可能とすること、特に低降伏点鋼材を先行して引張り降伏させる設計により、接合部の応力をそれ以上とはならせず、ひいては木質構造材に加えられる応力を制限し、地震等による接合部の損傷を制御する降伏型の接合工法および接合構造を提供することである。   An object of the present invention is to enable control of stress at the joint of a wooden structure material by joining ordinary bolts or low yield point steel materials to connecting bolts, in particular, in advance of low yield point steel materials. A yield-type joint construction method and structure that controls the damage of joints due to earthquakes, etc. by controlling the stress applied to the wooden structure material by limiting the stress of the joints to a higher level by the tensile yield design. Is to provide.

本発明の次の目的は、施工性の向上と、工期の短縮、及びコスト面での利点が大きい上に、木質構造としての意匠性に優れ、木造デザインの設計の自由度が高く、しかも靱性が大で、エネルギー吸収能力を有し耐震性能が大きい、木質構造材の接合工法および接合構造を提供することである。   The next object of the present invention is to improve the workability, shorten the construction period, and provide great advantages in terms of cost, as well as excellent design as a wooden structure, high degree of freedom in designing wooden designs, and toughness Is to provide a joining method and a joining structure for a wooden structure material having a large energy absorption capacity and a large seismic performance.

上述した従来技術の課題を解決するための手段として、請求項1に記載した発明に係る木質構造材の接合工法は、
木質構造材1の木口1aから材軸方向へ複数の下穴を掘り、該下穴の内周面に雌ねじ2を形成する工程と、
中空円筒形状をなし、外周面に前記木質構造材1の雌ねじ2と共通仕様の雄ねじ3を形成し、中空部4の奥端近傍に中空部口径よりもやや小径の雌ねじ穴5を形成して成るアンカー部材6を木質構造材1の前記雌ねじ2へねじ込んで固定する工程と、
先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7を有し、該雄ねじ部7を前記雌ねじ穴5へネジ接合すると木質構造材1の木口1aから後端部が突き出す長さとした連結用ボルト8の前記雄ねじ部7をアンカー部材6の前記雌ねじ穴5へネジ接合して連結用ボルト8を木質構造材1へ設置する工程と、
木質構造材1の木口1aから突き出た連結用ボルト8の後端部を鉄骨造又はコンクリート造の接合ブロック10又は15と接合する工程とからなることを特徴とする。
As means for solving the above-mentioned problems of the prior art, the wood structure material joining method according to the invention described in claim 1 is:
A step of digging a plurality of prepared holes in the direction of the material axis from the wood mouth 1a of the wooden structure material 1 and forming an internal thread 2 on the inner peripheral surface of the prepared holes;
A hollow cylindrical shape is formed, an external thread 3 having the same specifications as the internal thread 2 of the wooden structure material 1 is formed on the outer peripheral surface, and an internal thread hole 5 having a diameter slightly smaller than the diameter of the hollow section is formed near the inner end of the hollow section 4. A step of screwing and fixing the anchor member 6 to the female screw 2 of the wooden structure material 1;
It has a male screw hole 7 of the same specification as the female screw hole 5 of the anchor member 6 at the tip, and when the male screw part 7 is screwed to the female screw hole 5, the length of the rear end protruding from the wood mouth 1a of the wooden structure material 1 Screwing the male screw portion 7 of the connecting bolt 8 to the female screw hole 5 of the anchor member 6 and installing the connecting bolt 8 on the wood structure material 1;
It comprises a step of joining the rear end portion of the connecting bolt 8 projecting from the wood mouth 1a of the wooden structure material 1 to a steel or concrete joint block 10 or 15.

請求項2に記載した発明に係る木質構造材の接合工法は、
木質構造材1の木口1aから材軸方向へ複数の下穴を掘り、該下穴の内周面に雌ねじ2を形成すると共に当該雌ねじ2の面および下穴の奥端に接着剤を塗布ないし充填する工程と、
中空円筒形状をなし、外周面に前記木質構造材1の雌ねじ2と共通仕様の雄ねじ3を形成し、中空部4の奥端近傍に中空部口径よりもやや小径の雌ねじ穴5を形成して成るアンカー部材6を木質構造材1の前記雌ねじ2へねじ込んで接着し固定する工程と、
先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7を有し、該雄ねじ部7を前記雌ねじ穴5へネジ接合すると木質構造材1の木口1aから後端部が突き出す長さとした連結用ボルト8の前記雄ねじ部7をアンカー部材6の前記雌ねじ穴5へネジ接合して連結用ボルト8を木質構造材1へ設置する工程と、
木質構造材1の木口1aから突き出た連結用ボルト8の後端部を鉄骨造又はコンクリート造の接合ブロック10又は15と接合する工程とからなることを特徴とする。
The joining method of the wooden structure material according to the invention described in claim 2 is:
A plurality of pilot holes are dug from the wooden mouth 1a of the wooden structure material 1 in the direction of the material axis, and a female screw 2 is formed on the inner peripheral surface of the pilot hole, and an adhesive is applied to the surface of the female screw 2 and the back end of the pilot hole. Filling, and
A hollow cylindrical shape is formed, an external thread 3 having the same specifications as the internal thread 2 of the wooden structure material 1 is formed on the outer peripheral surface, and an internal thread hole 5 having a diameter slightly smaller than the diameter of the hollow section is formed near the inner end of the hollow section 4. A step of screwing and fixing the anchor member 6 to the female screw 2 of the wooden structure material 1;
It has a male screw hole 7 of the same specification as the female screw hole 5 of the anchor member 6 at the tip, and when the male screw part 7 is screwed to the female screw hole 5, the length of the rear end protruding from the wood mouth 1a of the wooden structure material 1 Screwing the male screw portion 7 of the connecting bolt 8 to the female screw hole 5 of the anchor member 6 and installing the connecting bolt 8 on the wood structure material 1;
It comprises a step of joining the rear end portion of the connecting bolt 8 projecting from the wood mouth 1a of the wooden structure material 1 to a steel or concrete joint block 10 or 15.

請求項3に記載した発明は、請求項1又は2に記載した木質構造材の接合工法において、
一つの木質構造材1の木口1aに複数設置されるアンカー部材6および連結用ボルト8の組みのうち一組みないし複数組みは、連結用ボルト8の少なくとも首部分8aの軸径をアンカー部材6の中空部口径に近接する大きさとしてせん断力に抵抗する構成とすることを特徴とする。
請求項4に記載した発明は、請求項2に記載した木質構造材の接合工法において、
アンカー部材6は、中空部4の奥端部を貫通させた穴に中空部口径よりもやや小径の雌ねじ穴5を形成し、更に雌ねじ穴5の先端部を接着剤が浸透しないように止め栓21で塞いだ構成とすることを特徴とする。
請求項5に記載した発明は、請求項1〜3のいずれか一に記載した木質構造材の接合工法において、
連結用ボルト8は、普通鋼、又は低降伏点鋼で製作されていることを特徴とする。
The invention described in claim 3 is the wood structure material joining method according to claim 1 or 2,
One set or a plurality of sets of anchor members 6 and connecting bolts 8 installed in a plurality of wooden openings 1a of one woody structural member 1 has an axial diameter of at least the neck portion 8a of the connecting bolt 8 of the anchor member 6. It is characterized by having a configuration that resists shearing force as a size close to the diameter of the hollow part.
The invention described in claim 4 is a method for joining wood structure materials described in claim 2,
The anchor member 6 is formed with a female screw hole 5 having a diameter slightly smaller than the diameter of the hollow part in a hole penetrating the inner end of the hollow part 4, and is further stoppered to prevent the adhesive from penetrating the tip part of the female screw hole 5. It is characterized by having a structure closed with 21.
The invention described in claim 5 is the wood structure material joining method according to any one of claims 1 to 3,
The connecting bolt 8 is made of plain steel or low yield point steel.

請求項6記載の発明は、請求項1〜3又は5のいずれか一に記載した木質構造材の接合工法において、
接合ブロックが鉄骨造10の場合は、連結用ボルト8において木質構造材1の木口1aから突き出る後端部に雄ねじ12を形成し、前記雄ねじ部12を接合ブロック10のボルト孔11へ通しナット13を締め込み接合することを特徴とする。
請求項7記載の発明は、請求項1〜3又は5のいずれか一に記載した木質構造材の接合工法において、
接合ブロックがコンクリート造15の場合は、連結用ボルト8において木質構造材1の木口1aから突き出る後端部に同連結用ボルト8の軸径よりも大径のコブを形成し、前記のコブを接合ブロック15の型枠16内へ一定のコンクリート被りとなる位置まで差し込み、同型枠16内へ現場打ちコンクリートを打設して接合することを特徴とする。
Invention of Claim 6 is the joining method of the wooden structure material as described in any one of Claims 1-3 or 5,
When the joining block is a steel frame 10, a male screw 12 is formed at the rear end portion of the connecting bolt 8 protruding from the wood mouth 1 a of the wooden structure material 1, and the male screw portion 12 is passed through the bolt hole 11 of the joining block 10 to form a nut 13. It is characterized by tightening and joining.
Invention of Claim 7 is the joining method of the wooden structure material as described in any one of Claims 1-3 or 5,
When the joint block is made of concrete 15, a hump having a diameter larger than the shaft diameter of the connecting bolt 8 is formed at the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wooden structure material 1, and the hump is The joint block 15 is inserted into the mold 16 to a position where it is covered with concrete, and cast-in-place concrete is cast into the mold 16 and joined.

請求項8に記載した発明は、請求項1〜3又は5若しくは7のいずれか一に記載した木質構造材の接合工法において、
コンクリート造の接合ブロック用型枠16内に鉄筋を配筋して現場打ちコンクリートを打設し、又は鉄筋を配筋することなく繊維補強コンクリートを打設して連結用ボルト8と接合することを特徴とする。
The invention described in claim 8 is the wood structure material joining method according to any one of claims 1 to 3 or 5 or 7,
Reinforcing the reinforcing bars in the concrete joining block form 16 and placing the cast-in-place concrete, or placing the fiber-reinforced concrete without placing the reinforcing bars and joining the connecting bolts 8. Features.

請求項9に記載した発明に係る木質構造材の接合構造は、
木質構造材1の木口1aから材軸方向へ複数の雌ねじ穴2が形成されており、
中空円筒形状をなし、外周面には木質構造材1の前記雌ねじ穴2と共通仕様の雄ねじ3が形成され、中空部4の奥端近傍に中空部口径よりもやや小径の雌ねじ穴5が形成されて成るアンカー部材6が木質構造材1の前記雌ねじ穴2へねじ込まれ固定されており、
先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7を有し、該雄ねじ部7を前記雌ねじ穴5へネジ接合すると木質構造材1の木口1aから後端部が突き出す長さとされた連結用ボルト8がその雄ねじ部7を前記アンカー部材6の雌ねじ穴5へネジ接合して木質構造材1へ設置されており、
木質構造材1の木口1aから突き出た前記連結用ボルト8の後端部が鉄骨造又はコンクリート造の接合ブロック10又は15と接合されていることを特徴とする。
The joint structure of the wood structure material according to the invention described in claim 9 is:
A plurality of female screw holes 2 are formed in the direction of the material axis from the mouth 1a of the wooden structure material 1,
It has a hollow cylindrical shape, and a male screw 3 having the same specifications as the female screw hole 2 of the wooden structure material 1 is formed on the outer peripheral surface, and a female screw hole 5 having a diameter slightly smaller than the diameter of the hollow part is formed near the inner end of the hollow part 4. An anchor member 6 is screwed into the female screw hole 2 of the wooden structure material 1 and fixed.
It has a male screw hole 7 of the same specification as the female screw hole 5 of the anchor member 6 at the tip, and when the male screw part 7 is screwed to the female screw hole 5, the length of the rear end protruding from the wood mouth 1a of the wooden structure material 1 The connected connecting bolt 8 is screwed to the female screw hole 5 of the anchor member 6 and the male screw part 7 is installed on the wood structure material 1.
A rear end portion of the connecting bolt 8 protruding from the wooden mouth 1a of the wooden structure material 1 is joined to a steel or concrete joint block 10 or 15.

請求項1〜8に係る発明の係る接合工法、および請求項9に係る発明の接合構造は、木質構造材1の材軸方向に必要数の下穴を必要な深さまで掘り、該下穴の内周面に雌ねじ2を形成し、一方、中空円筒形状をなし、その外周面に前記雌ねじ穴2と共通仕様の雄ねじ3を形成し、中空部4の奥端近傍に同中空部口径よりもやや小径の雌ねじ穴5を形成して成るアンカー部材6を前記雌ねじ穴2の中へねじ込んで固定するか、又は接着剤を使用して接着し固定し、先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7を有し、該雄ねじ部7を前記雌ねじ穴5へネジ接合すると木質構造材1の木口1aから突き出す長さの連結用ボルト8の前記雄ねじ部7を前記雌ねじ穴5へネジ接合して連結用ボルト8を木質構造材1へ設置し、前記連結用ボルト8を鉄骨造又はコンクリート造の接合ブロック10又は15と接合する工程により実施するので、現場作業が簡単、確実で、施工性に優れ、それでいて必要十分に大きな接合強度を実現できる。即ち、木質構造材1へアンカー部材6を固定し、同アンカー部材6へネジ接合により連結用ボルト8を設置するまでの工程は、予め工場加工等として高品質に準備しておくことができる。現場では連結用ボルト8を接合ブロック10又は15と接合する工程だけで簡単、確実に短工期で実施できるのであり、従前のように多数のドリフトピンや接合金物は無用である。   The joining method according to the inventions according to claims 1 to 8 and the joining structure according to the invention according to claim 9 dig a required number of prepared holes in the material axis direction of the wooden structure material 1 to a required depth, An internal thread 2 is formed on the inner peripheral surface, while a hollow cylindrical shape is formed, an external thread 3 having the same specifications as the female screw hole 2 is formed on the outer peripheral surface, and the hollow portion 4 is closer to the rear end than the hollow portion diameter. An anchor member 6 formed with a female screw hole 5 having a slightly small diameter is screwed into the female screw hole 2 and fixed thereto, or is bonded and fixed using an adhesive, and the female screw hole of the anchor member 6 is fixed to the tip portion. 5, the male screw portion 7 of the connecting bolt 8 having a length protruding from the wood mouth 1 a of the wooden structure 1 when the male screw portion 7 is screwed to the female screw hole 5. 5 and screwing the connecting bolt 8 to the wooden structure 1 Since the connecting bolts 8 performed by the steps of bonding the bonding block 10 or 15 of the steel frame or concrete structure, easy to field work, and reliable, excellent in workability, yet can realize a large bonding strength necessary and sufficient. That is, the process from fixing the anchor member 6 to the wooden structure material 1 and installing the connecting bolt 8 to the anchor member 6 by screw joining can be prepared in advance as a factory process or the like with high quality. In the field, the connecting bolt 8 and the joining block 10 or 15 can be joined simply and surely in a short construction period, and a number of drift pins and joining hardware are unnecessary as before.

現場における連結用ボルト8と接合ブロック10又は15との接合作業も、接合ブロックが鉄骨造10の場合は、連結用ボルト8の雄ねじ12を、接合ブロック10に予め加工しておいたボルト孔11へ通しナット13を締め込む作業により確実に強固に接合することができる。接合ブロックがコンクリート造15の場合は、連結用ボルト8の後端部のコブ13を接合ブロック15の型枠16内へ一定のコンクリート被りとなる位置まで差し込み、同型枠16内に現場打ちコンクリートを打設する作業により、簡単、容易に接合することができる。前記コンクリート造15の場合には、接合ブロック用型枠16内に鉄筋を配筋して現場打ちコンクリートを打設するか、又は鉄筋を配筋することなく繊維補強コンクリートを打設して接合することが可能であり、現場作業を選択する自由度が有る。   In the work of joining the connecting bolt 8 and the joining block 10 or 15 in the field, when the joining block is a steel structure 10, the male screw 12 of the connecting bolt 8 is processed into the joining block 10 in advance by the bolt hole 11. By the operation of tightening the threaded nut 13, it is possible to securely and firmly join. When the joining block is made of concrete 15, the bump 13 at the rear end of the connecting bolt 8 is inserted into the mold 16 of the joining block 15 to a certain concrete covering position, and the cast-in-place concrete is put into the same mold 16. It is possible to join easily and easily by the operation of placing. In the case of the concrete structure 15, reinforcing bars are placed in the joining block mold 16 and cast-in-place concrete is placed, or fiber reinforced concrete is placed and joined without placing reinforcing bars. And has the freedom to choose field work.

次に、連結用ボルト8の材質は、普通鋼、又は低降伏点鋼のいずれで製作しても良い。連結用ボルト8が低降伏点鋼の場合は、接合部に作用する応力を低減化できる上に、塑性エネルギー吸収効果が大きく、制震作用、或いは接合部に作用する応力の制御が可能となる。即ち、低降伏点鋼材を先行して引張り降伏させる設計により、接合部の応力をそれ以上とはならせず、ひいては木質構造材1に加えられる応力を制限できるのである。   Next, the material of the connecting bolt 8 may be made of either ordinary steel or low yield point steel. When the connecting bolt 8 is a low yield point steel, the stress acting on the joint can be reduced, and the plastic energy absorption effect is great, so that the vibration control action or the stress acting on the joint can be controlled. . That is, the design in which the low-yield point steel material is pulled and yielded in advance makes it possible to limit the stress applied to the wooden structure material 1 without further increasing the stress at the joint.

木質構造材1の木口1aから材軸方向へ複数の下穴を掘り、該下穴の内周面に雌ねじ2を形成する。一方、中空円筒形状をなし、外周面に前記木質構造材1の雌ねじ穴2と共通仕様の雄ねじ3を形成し、中空部4の奥端近傍に同中空部口径よりもやや小径の雌ねじ穴5を形成して成るアンカー部材6を前記雌ねじ穴2の中へねじ込みで固定するか、又は接着剤を使用して接着し固定する。
先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7を有し、該雄ねじ部7を前記雌ねじ穴5へネジ接合すると後端部が木質構造材1の木口1aから突き出す長さとした連結用ボルト8の前記雄ねじ部7をアンカー部材6の前記雌ねじ穴5へネジ接合して木質構造材1へ設置し、木質構造材1の木口1aから突き出た連結用ボルト8の後端部を鉄骨造又はコンクリート造の接合ブロック10又は15と接合する。
A plurality of pilot holes are dug from the wooden mouth 1a of the wooden structure material 1 in the material axial direction, and the female screw 2 is formed on the inner peripheral surface of the pilot hole. On the other hand, a hollow cylindrical shape is formed, an external thread 3 having the same specifications as that of the internal thread hole 2 of the wood structure material 1 is formed on the outer peripheral surface, and an internal thread hole 5 having a diameter slightly smaller than the diameter of the hollow section near the back end of the hollow section 4. The anchor member 6 formed by forming is fixed by screwing into the female screw hole 2 or bonded and fixed using an adhesive.
The distal end portion has a male screw portion 7 having the same specifications as the female screw hole 5 of the anchor member 6, and when the male screw portion 7 is screwed to the female screw hole 5, the rear end portion protrudes from the tree mouth 1 a of the wooden structure material 1. The male screw portion 7 of the connecting bolt 8 is screwed to the female screw hole 5 of the anchor member 6 and installed in the wood structure material 1, and the rear end portion of the connection bolt 8 protruding from the wood mouth 1a of the wood structure material 1 Are joined to the steel or concrete joint block 10 or 15.

一つの木質構造材1の木口1aに複数設置されるアンカー部材6および連結用ボルト8の組みのうち一組みないし複数組みは、連結用ボルト8の少なくとも首部分の軸径をアンカー部材6の中空部口径に近接する大きさとしてせん断力に抵抗する構成とする。
アンカー部材6は、中空部4の奥端部を貫通させた穴に中空部口径よりもやや小径の雌ねじ穴5を形成し、更に雌ねじ穴5の先端部を接着剤が浸透しないように止め栓で塞いだ構成とする。
連結用ボルト8は、普通鋼、又は低降伏点鋼で製作する。
連結用ボルト8と鉄骨造の接合ブロック10とは、連結用ボルト8において木質構造材1の木口1aから突き出た後端部に雄ねじ12を形成し、該雄ねじ12を接合ブロック10のボルト孔11へ通しナット13を締め込んで接合する。
連結用ボルト8とコンクリート造の接合ブロック15は、連結用ボルト8において木質構造材1の木口1aから突き出た後端部に連結用ボルト8の軸径よりも大径のコブ13を形成し、前記のコブ13を接合ブロック15の型枠16内へ一定のコンクリート被りとなる位置まで差し込み、同型枠16内へ現場打ちコンクリートを打設して接合する。その場合に、コンクリート造の接合ブロック15の型枠16内に鉄筋を配筋して現場打ちコンクリートを打設するか、又は鉄筋を配筋することなく繊維補強コンクリートを打設して接合する。
One set or a plurality of sets of the anchor members 6 and the connecting bolts 8 installed in the tree mouth 1a of one woody structural member 1 has an axial diameter of at least the neck portion of the connecting bolt 8 so that the anchor member 6 is hollow. It is set as the structure which resists a shear force as a magnitude | size close | similar to a part diameter.
The anchor member 6 is formed with a female screw hole 5 having a diameter slightly smaller than the diameter of the hollow part in a hole penetrating the inner end of the hollow part 4, and is further stoppered to prevent the adhesive from penetrating the tip part of the female screw hole 5. The structure is closed with.
The connecting bolt 8 is made of plain steel or low yield point steel.
The connecting bolt 8 and the steel-structured connecting block 10 are formed with a male screw 12 at the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wood structure material 1 and the male screw 12 is connected to the bolt hole 11 of the connecting block 10. The threaded nut 13 is tightened and joined.
The connecting bolt 8 and the concrete joint block 15 form a bump 13 having a diameter larger than the shaft diameter of the connecting bolt 8 at the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wooden structure material 1. The above-mentioned bump 13 is inserted into the mold 16 of the joining block 15 up to a position where it becomes a certain concrete cover, and cast-in-place concrete is cast into the mold 16 and joined. In that case, reinforcing steel bars are placed in the mold 16 of the concrete-made joining block 15 to place the cast-in-place concrete, or fiber reinforced concrete is placed and joined without placing the reinforcing bars.

図1と図2は、請求項1〜9に係る発明の木質構造材の接合工法および接合構造の実施例1を示している。
木製の梁材又は柱材の如き木質構造材1には、その接合端部の木口1aから材軸方向に向かって、図1と図2の場合には上下に2本の下穴が、後述する連結用ボルトが引っ張り応力に対して必要な耐力を発揮する上で必要とされる口径と奥行き深さ(通例口径は20〜30mm、奥行き深さ200mm〜300mm程度。但し、口径30mmで奥行き深さ500mm程度も実施される。)に掘られ、同下穴の内周面の全長にタップで雌ねじを形成するねじ切り加工が行なわれている。但し、下穴の本数や配置は、木質構造材1の断面や木口1aの大きさ、長さ、及び設計負荷の大きさなどに応じて適宜に設計し実施する。かくして木質構造材1の材軸方向に形成された雌ねじ穴を図面に符号2で示す。もっとも、下穴の穴あけと雌ねじ切り加工とを同時に行える機械による同時加工法による実施例も含むものとする。
1 and 2 show Embodiment 1 of a wood structure material joining method and joining structure according to the first to ninth aspects of the present invention.
In the wooden structure material 1 such as a wooden beam or a column, two pilot holes are formed in the vertical direction in the case of FIGS. Caliber and depth required for the connecting bolt to exert the necessary strength against tensile stress (usually caliber is 20 to 30 mm, depth is about 200 mm to 300 mm. However, caliber is 30 mm and depth is deep. In addition, a threading process is performed in which a female thread is formed by tapping the entire length of the inner peripheral surface of the prepared hole. However, the number and arrangement of the pilot holes are appropriately designed and implemented according to the cross section of the wooden structure material 1, the size and length of the lip 1a, the design load, and the like. Thus, the female screw hole formed in the direction of the axis of the wood structure material 1 is indicated by reference numeral 2 in the drawing. However, it is assumed to include an embodiment by a simultaneous machining method using a machine capable of simultaneously drilling a pilot hole and female threading.

次に、上記雌ねじ穴2の奥行き寸法とほぼ同じ長さで、ほぼ同径の中空円筒形状で、外周面の全長に前記雌ねじ穴2と共通仕様の雄ねじ3が形成され、中空部4の奥端近傍に同中空部4の口径よりもやや小径の雌ねじ穴5が奥行き長さにして例えば50mmから70mm程度形成されたアンカー部材6が用意され、該アンカー部材6は、図2に示したように前記雌ねじ穴2の中へ深くねじ込まれ強固に固定される。   Next, a male cylinder 3 having the same specifications as the female screw hole 2 is formed over the entire length of the outer peripheral surface of the hollow screw 4 having the same length as the depth dimension of the female screw hole 2 and substantially the same diameter. In the vicinity of the end, an anchor member 6 is prepared in which a female screw hole 5 having a diameter slightly smaller than the diameter of the hollow portion 4 is formed to have a depth of, for example, about 50 mm to 70 mm, and the anchor member 6 is as shown in FIG. Then, it is screwed deeply into the female screw hole 2 and firmly fixed.

更に、先端部に前記アンカー部材6の雌ねじ穴5と共通仕様の雄ねじ部7がほぼ同じ長さに形成され、この雄ねじ部7を図2のようにアンカー部材6の雌ねじ穴5へネジ接合した場合に後端部が木質構造材1の木口1aから後述する接合ブロックとの接合に必要な長さ突き出す長さ(全長)の連結用ボルト8が、前記の雄ねじ部7を前記アンカー部材6の雌ねじ穴5へ強固にネジ接合して木質構造材1に設置される。
その結果、図2に示したように、連結用ボルト8は、雄ねじ部7が雌ねじ穴5へネジ接合された部分を除いた長さ範囲Lが引っ張り応力で変形(歪み)可能な自由部分として構成される。よって、連結用ボルト8が普通鋼で製作された場合はもとより、特に低降伏点鋼で製作された場合には、一定大きさの負荷に応じて降伏して塑性エネルギーを吸収し制震作用を発揮するほか、接合部に作用する応力を一定大きさ(前記降伏応力)に制御する(制限する)ことが可能な接合を実現できる。勿論、地震等により降伏した連結用ボルト8は、交換することにより容易に修復することができる。
Further, a male screw portion 7 having the same specifications as the female screw hole 5 of the anchor member 6 is formed at substantially the same length at the tip portion, and this male screw portion 7 is screwed to the female screw hole 5 of the anchor member 6 as shown in FIG. In this case, a connecting bolt 8 having a length (full length) that protrudes from the end 1a of the wooden structure material 1 to a joining block, which will be described later, is connected to the male screw portion 7 of the anchor member 6. The wood structure material 1 is firmly screwed into the female screw hole 5 and installed.
As a result, as shown in FIG. 2, the connecting bolt 8 has a length range L excluding a portion where the male screw portion 7 is screwed to the female screw hole 5 as a free portion that can be deformed (distorted) by a tensile stress. Composed. Therefore, not only when the connecting bolt 8 is made of plain steel, but especially when it is made of low yield point steel, it yields according to a certain amount of load and absorbs the plastic energy to suppress the vibration. In addition to this, it is possible to realize a joint capable of controlling (limiting) the stress acting on the joint portion to a certain magnitude (the yield stress). Of course, the connecting bolt 8 that yielded due to an earthquake or the like can be easily repaired by replacing it.

図3A、Bは、上記図1、2のようにして木質構造材1の接合端部の木口1aに用意した連結用ボルト8を利用して、2本の木質構造材1、1を鉄骨造の接合ブロック10を仲介として一連に接合した実施例を示している。
図3の場合、鉄骨造の接合ブロック10は、一例として、H形鋼を木質構造材1の幅寸と同じ長さに裁断したに等しい形状、構造とされ、各木質構造材1の木口1aが接合ブロック10のフランジ部10aの外面にぴったりと接触されている。
接合ブロック10のフランジ部10aには、木質構造材1の木口1aから突き出された上記連結用ボルト8の後端部と一致する位置に、予めボルト孔11が設けられている。また、木質構造材1の木口1aから突き出された上記連結用ボルト8の後端部には、一定の長さ範囲に予め雄ねじ12が形成されており、前記のようにフランジ部10aのボルト孔11へ通された雄ねじ12にナット13がねじ込まれ、強く締結されて接合の目的が達成されている。
もっとも、鉄骨造の接合ブロック10は、上記のH形鋼を裁断したような形状、構造の限りではない。木質構造材1の木口1aから突き出された上記連結用ボルト8の後端部を利用して接合可能な形状、構造であれば、その如何を問うものではない。例えば溶接組立品や鋳造品であっても良い。あるいはブロック品のかぎりではなく、必要、十分に長い鉄骨柱の類であっても良い。
FIGS. 3A and 3B show that the two wooden structural members 1 and 1 are made of steel using the connecting bolt 8 prepared at the end 1a of the joint end of the wooden structural member 1 as shown in FIGS. The example which joined in series using the joining block 10 of this is shown.
In the case of FIG. 3, as an example, the steel-structured joining block 10 has a shape and a structure equal to the H-shaped steel cut into the same length as the width of the wooden structure material 1. Is in close contact with the outer surface of the flange portion 10 a of the joining block 10.
A bolt hole 11 is provided in advance in the flange portion 10a of the joining block 10 at a position coinciding with the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wooden structure material 1. Further, a male screw 12 is formed in advance in a certain length range at the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wooden structure material 1, and the bolt hole of the flange portion 10a as described above. A nut 13 is screwed into a male screw 12 passed through 11 and is fastened to achieve the purpose of joining.
However, the steel-structured joining block 10 is not limited to the shape and structure as if the H-shaped steel was cut. Any shape and structure can be used as long as they can be joined using the rear end portion of the connecting bolt 8 protruding from the wooden mouth 1a of the wooden structure material 1. For example, a welded assembly or a cast product may be used. Alternatively, it is not limited to a block product, and may be a necessary and sufficiently long steel column.

図4は、上記図1、2のようにして木質構造材1の木口1aに設置した連結用ボルト8を利用して、直交する配置とされた4本の木質構造材1、1…を、コンクリート造の接合ブロック15を仲介として接合した実施例を示している。
因みに、図4を立面図として見る場合は、上下の柱および左右の梁を接合ブロック15で接合した柱梁接合部の実施例と理解することができる。また、図4を平面図として見る場合には、柱位置を中心として直交する4方向の梁−梁接合部の実施例と理解することができるであろう。
FIG. 4 shows four wooden structural members 1, 1... Arranged orthogonally by using the connecting bolts 8 installed at the tree mouth 1 a of the wooden structural member 1 as shown in FIGS. The example which joined using the concrete connection block 15 as a mediation is shown.
Incidentally, when FIG. 4 is viewed as an elevational view, it can be understood as an example of a column beam joint in which upper and lower columns and left and right beams are joined by a joining block 15. Further, when FIG. 4 is viewed as a plan view, it can be understood as an example of a beam-beam joint in four directions orthogonal to each other with a column position as a center.

図4の実施例は、木質構造材1の木口1aから突き出た連結用ボルト8の後端部を利用して、コンクリート造の接合ブロック15と接合した実施例を示している。即ち、木質構造材1の木口1aから突き出た連結用ボルト8の後端部に、当該連結用ボルト8の軸径よりも大径のコブとしてナット13が取り付けられ、同ナット13を接合ブロック15の型枠16内へ必要とされるコンクリート被りとなる位置まで差し込み、同型枠16内へ現場打ちコンクリートを打設して接合した構成である。もっとも、連結用ボルト8のコブは前記ナットの構成であるほかに、いわゆる据え込み加工で形成するコブ、或いは溶接等で金属片等を接合した構成で実施することもできる。
本実施例の場合に、コンクリート造の接合ブロック15による接合構造は、型枠16内に、図示を省略した鉄筋を配筋して現場打ちコンクリートを打設して行う場合、又は鉄筋を配筋することなく、繊維補強コンクリートを打設して接合する場合などを選択的に実施することができる。
また、コンクリート造の接合ブロック15は、図示したサイコロ形状のブロックである場合の他、図4の紙面と垂直方向に長いコンクリート造柱の構成などで実施することもできる。
The embodiment of FIG. 4 shows an embodiment in which the rear end portion of the connecting bolt 8 protruding from the wood mouth 1a of the wooden structure material 1 is used to join the concrete joint block 15. That is, the nut 13 is attached to the rear end portion of the connecting bolt 8 protruding from the wooden mouth 1a of the wooden structure material 1 as a bump having a diameter larger than the shaft diameter of the connecting bolt 8, and the nut 13 is connected to the joining block 15 It is the structure which inserted in the position which becomes the concrete covering required in the formwork 16 of this, and cast in-situ concrete in the same formwork 16, and joined. However, the bump of the connecting bolt 8 can be implemented by a configuration in which a metal piece or the like is joined by a bump formed by so-called upsetting, or welding, in addition to the configuration of the nut.
In the case of the present embodiment, the joint structure by the concrete joint block 15 is performed by placing a reinforcing bar (not shown) in the formwork 16 and placing a cast-in-place concrete, or by placing the reinforcing bar. For example, the case where fiber reinforced concrete is cast and joined can be selectively performed.
In addition to the case of the illustrated dice-shaped block, the concrete joint block 15 may be implemented by a concrete pillar structure that is long in the direction perpendicular to the paper surface of FIG.

以上の各実施例1、2は、木質構造材1の木口1aに雌ねじ穴2を形成して、アンカー部材6を前記雌ねじ穴2へねじ込み単純にネジ止め固定する構成であったが、図5の実施例3では、木質構造材1の雌ねじ穴2の雌ねじ面および下穴の奥端に、刷毛塗り又は噴霧若しくは注入等の方法で接着剤20を塗布ないし充填し、もってアンカー部材6は木質構造材1の前記雌ねじ2へねじ込んで接着し固定する構成を特徴とする。アンカー部材6の取付耐力を高め、靱性効果をより一層高めるためである。下穴の奥端に充填した接着剤20はアンカー部材6の奥端との間に発生しやすい隙間を埋めて、いわゆる断面欠損を防ぐ効果も奏する。
なお、本実施例3でいう接着剤20は、アンカー部材6は木質構造材1の接着・固定に実効性があるものであれば足り、その種類を問うものではない。通例、合成樹脂製の接着剤(例えばエポキシ樹脂)などが好適である。
Each of the first and second embodiments described above has a configuration in which the female screw hole 2 is formed in the wood mouth 1a of the wooden structure material 1 and the anchor member 6 is screwed into the female screw hole 2 and is simply screwed and fixed. In the third embodiment, the adhesive member 20 is applied or filled by a method such as brushing, spraying, or pouring on the female screw surface of the female screw hole 2 and the inner end of the prepared hole of the wooden structure material 1 so that the anchor member 6 is made of wood. The structure 1 is characterized in that it is screwed into the female screw 2 to be bonded and fixed. This is because the mounting strength of the anchor member 6 is increased and the toughness effect is further increased. The adhesive 20 filled in the back end of the prepared hole fills a gap that easily occurs between the back end of the anchor member 6 and also has an effect of preventing a so-called cross-sectional defect.
In addition, as for the adhesive agent 20 in this Example 3, the anchor member 6 should just be effective in adhesion | attachment / fixation of the wooden structure material 1, and does not ask | require the kind. In general, an adhesive made of synthetic resin (for example, epoxy resin) or the like is suitable.

アンカー部材6の構造は、その先端部近傍に雌ねじ穴5を備え、この雌ねじ穴5へ連結用ボルト8の先端部の雄ねじ部7をネジ接合することで、図2に示す長さLを可及的に大きく確保して制震作用に寄与せしめる。しかし、図1のように奥端が閉鎖された中実構造の雌ねじ穴5を加工することは技術的に大変面倒で手数がかかる。そこで図6A、Bに示した実施例4では、先ずアンカー部材6の中空部4は貫通穴として形成され(又はパイプ材を裁断して利用する。)、同中空部4の先端部に必要な有効長さの雌ねじ穴5を加工する(図6A)。しかる後に、例えば鋼製のネジプラグのような止め栓21をねじ込み、少なくとも上記実施例3で説明した接着剤がアンカー部材6の中空部4へ浸入して、図2に示す長さLの有効性を毀損しない構成(図6B)で使用する。
もっとも、実施例1、2のように接着剤を使用しない場合には、図6Aのように中空部4の先端が開口した構成のまま使用して接合を行うこともできる。
The anchor member 6 has a female screw hole 5 in the vicinity of the tip thereof, and the male screw portion 7 at the tip of the connecting bolt 8 is screwed to the female screw hole 5 so that the length L shown in FIG. Secure as much as possible and contribute to the vibration control. However, as shown in FIG. 1, it is technically very troublesome and troublesome to process the female screw hole 5 having a solid structure with the back end closed. 6A and 6B, first, the hollow portion 4 of the anchor member 6 is formed as a through hole (or the pipe material is cut and used), and is necessary for the distal end portion of the hollow portion 4. The female screw hole 5 having an effective length is processed (FIG. 6A). Thereafter, a stopper plug 21 such as a steel screw plug is screwed in, and at least the adhesive described in the third embodiment enters the hollow portion 4 of the anchor member 6 and the effectiveness of the length L shown in FIG. Is used in a configuration (FIG. 6B) that does not damage.
However, when an adhesive is not used as in the first and second embodiments, bonding can be performed using the configuration in which the tip of the hollow portion 4 is opened as shown in FIG. 6A.

最後に、図7A、Bに示した実施例5は、上記したように共通な一つの木質構造材1の木口1aに複数の下穴および雌ねじ穴2が設置され、アンカー部材6および連結用ボルト8の組みが複数設置される場合に、そのうちの一組みないし複数組みは、図7Aに示したように連結用ボルト8の少なくとも首部分8aの軸径が、アンカー部材6の中空部4の口径に近接する大きさで両者に殆ど隙間が発生せず、木質構造材1の接合部にせん断力が働いた場合に効果的に抵抗する構成で実施することが好ましい。
もっとも、図7の実施例は、A図に、長さは短いが、もっぱら接合部にせん断力が働いた場合に効果的に抵抗する連結用ボルト8の構成を示し、B図には引っ張り応力に対して塑性エネルギーの吸収に必要十分な長さを確保した連結用ボルト8の構成を示し、これら2種類のアンカー部材6および連結用ボルト8の組みを適宜に組み合わせて実施する場合を示している。また、図7Bは、例えば図1の実施例とは逆に、連結用ボルト8の軸径が先端の雄ねじ部7の有効外径よりも大径である実施例を示している。
Finally, in the fifth embodiment shown in FIGS. 7A and 7B, as described above, a plurality of pilot holes and female screw holes 2 are installed in the wood mouth 1a of one common wood structure material 1, and the anchor member 6 and the connecting bolt are connected. When a plurality of sets of 8 are installed, one or more of the sets are such that the shaft diameter of at least the neck portion 8a of the connecting bolt 8 is the diameter of the hollow portion 4 of the anchor member 6 as shown in FIG. 7A. It is preferable to carry out a structure that effectively resists when a shearing force is applied to the joint portion of the wooden structure material 1 with a size close to the surface and almost no gap between them.
However, the embodiment of FIG. 7 shows the configuration of the connecting bolt 8 which is short in length but effectively resists when a shearing force is applied to the joint, and FIG. 7B shows the tensile stress. The structure of the connecting bolt 8 securing a necessary and sufficient length for the absorption of plastic energy is shown, and the case where the combination of these two types of anchor members 6 and the connecting bolt 8 is appropriately combined is shown. Yes. FIG. 7B shows an embodiment in which the shaft diameter of the connecting bolt 8 is larger than the effective outer diameter of the male screw portion 7 at the tip, for example, contrary to the embodiment of FIG.

以上に図示した実施例に基づいて本発明を説明してきたが、勿論、本発明は上記の各実施例に限定されるものではない。本発明の目的と要旨、及び思想を逸脱しない限り、いわゆる当業者が必要に応じて行う設計変更や変形、応用も含めて広く多様に実施されるものであることを、念のため申し添える。   Although the present invention has been described based on the embodiments illustrated above, of course, the present invention is not limited to the above-described embodiments. As long as it does not deviate from the object, the gist, and the idea of the present invention, it should be noted that the present invention can be implemented in a wide variety of ways including design changes, modifications, and applications that are made by those skilled in the art as needed.

本発明に係る木質構造材の接合工法の構成要素を分解状態で示した説明図である。It is explanatory drawing which showed the component of the joining method of the wooden structure material which concerns on this invention in the decomposition | disassembly state. 図1の構成要素を組み立てた木質構造材を示す断面図である。It is sectional drawing which shows the wooden structure material which assembled the component of FIG. A、Bは鉄骨造の接合ブロックによる接合構造を示す平面および正面方向の断面図である。A and B are plane and front sectional views showing a joining structure by a steel-structured joining block. コンクリート造の接合ブロックによる接合構造を示す断面図である。It is sectional drawing which shows the joining structure by the joint block made from concrete. 木質構造材とアンカー部材の固定に接着剤を使用した実施例の断面図である。It is sectional drawing of the Example which used the adhesive agent for fixation of a wooden structure material and an anchor member. A、Bはアンカー部材の異なる実施例を示した断面図である。A and B are sectional views showing different embodiments of the anchor member. A、Bは木質構造材とアンカー部材の固定構造が異なる実施例の断面図である。A and B are sectional views of examples in which the fixing structure of the wooden structure material and the anchor member is different.

符号の説明Explanation of symbols

1 木質構造材
1a 木口
2 雌ねじ穴
3 雄ねじ
4 中空部
5 雌ねじ穴
6 アンカー部材
7 雄ねじ部
8 連結用ボルト
10、15 接合ブロック
11 ボルト孔
12 雄ねじ
13 ナット
16 型枠
20 接着剤
21 止め栓
DESCRIPTION OF SYMBOLS 1 Wood structure material 1a Wood mouth 2 Female thread hole 3 Male thread 4 Hollow part 5 Female thread hole 6 Anchor member 7 Male thread part 8 Connection bolts 10 and 15 Joint block 11 Bolt hole 12 Male thread 13 Nut 16 Formwork
20 Adhesive 21 Stopper

Claims (9)

木質構造材の木口から材軸方向へ複数の下穴を掘り、該下穴の内周面に雌ねじを形成する工程と、
中空円筒形状をなし、外周面に前記木質構造材の雌ねじと共通仕様の雄ねじを形成し、中空部の奥端近傍に中空部口径よりもやや小径の雌ねじ穴を形成して成るアンカー部材を木質構造材の前記雌ねじへねじ込んで固定する工程と、
先端部に前記アンカー部材の雌ねじ穴と共通仕様の雄ねじ部を有し、該雄ねじ部を前記雌ねじ穴へネジ接合すると木質構造材の木口から後端部が突き出す長さとした連結用ボルトの前記雄ねじ部をアンカー部材の前記雌ねじ穴へネジ接合して連結用ボルトを木質構造材へ設置する工程と、
木質構造材の木口から突き出た連結用ボルトの後端部を鉄骨造又はコンクリート造の接合ブロックと接合する工程とからなることを特徴とする、木質構造材の接合工法。
A step of digging a plurality of pilot holes in the axial direction of the wood structure material from the mouth, and forming an internal thread on the inner peripheral surface of the pilot hole;
An anchor member that has a hollow cylindrical shape, has an external thread of the same specification as the internal thread of the wooden structure material on the outer peripheral surface, and has an internal thread hole slightly smaller than the diameter of the hollow part near the back end of the hollow part. Screwing and fixing to the internal thread of the structural material;
The male screw of the connecting bolt having a male screw portion of the same specification as the female screw hole of the anchor member at the tip, and having a length that the rear end portion protrudes from the wood mouth of the wooden structure material when the male screw portion is screwed to the female screw hole Screwing the part into the female screw hole of the anchor member and installing the connecting bolt on the wooden structure material; and
A joining method for a wood structure material, comprising a step of joining a rear end portion of a connecting bolt protruding from a wood mouth of a wood structure material to a steel structure or concrete construction block.
木質構造材の木口から材軸方向へ複数の下穴を掘り、該下穴の内周面に雌ねじを形成すると共に当該雌ねじ面および下穴の奥端に接着剤を塗布ないし充填する工程と、
中空円筒形状をなし、外周面に前記木質構造材の雌ねじと共通仕様の雄ねじを形成し、中空部の奥端近傍に中空部口径よりもやや小径の雌ねじ穴を形成して成るアンカー部材を木質構造材の前記雌ねじへねじ込んで接着し固定する工程と、
先端部に前記アンカー部材の雌ねじ穴と共通仕様の雄ねじ部を有し、該雄ねじ部を前記雌ねじ穴へネジ接合すると木質構造材の木口から後端部が突き出す長さとした連結用ボルトの前記雄ねじ部をアンカー部材の前記雌ねじ穴へネジ接合して連結用ボルトを木質構造材へ設置する工程と、
木質構造材の木口から突き出た連結用ボルトの後端部を鉄骨造又はコンクリート造の接合ブロックと接合する工程とからなることを特徴とする、木質構造材の接合工法。
Digging a plurality of pilot holes in the axial direction of the wood structure material from the mouth, forming a female screw on the inner peripheral surface of the pilot hole, and applying or filling an adhesive on the female screw surface and the back end of the pilot hole; and
An anchor member that has a hollow cylindrical shape, has an external thread of the same specification as the internal thread of the wooden structure material on the outer peripheral surface, and has an internal thread hole slightly smaller than the diameter of the hollow part near the back end of the hollow part. Screwing into the female thread of the structural material and bonding and fixing;
The male screw of the connecting bolt having a male screw portion of the same specification as the female screw hole of the anchor member at the tip, and having a length that the rear end portion protrudes from the wood mouth of the wooden structure material when the male screw portion is screwed to the female screw hole Screwing the part into the female screw hole of the anchor member and installing the connecting bolt on the wooden structure material; and
A joining method for a wood structure material, comprising a step of joining a rear end portion of a connecting bolt protruding from a wood mouth of a wood structure material to a steel structure or concrete construction block.
一つの木質構造材の木口に複数設置されるアンカー部材および連結用ボルトの組みのうち一組みないし複数組みは、連結用ボルトの少なくとも首部分の軸径をアンカー部材の中空部口径に近接する大きさとしてせん断力に抵抗する構成とすることを特徴とする、請求項1又は2に記載した木質構造材の接合工法。   One or more sets of anchor members and connecting bolts installed in the mouth of a single woody structure material have a shaft diameter of at least the neck portion of the connecting bolt close to the hollow diameter of the anchor member. The wood structure material joining method according to claim 1 or 2, wherein the structure resists a shearing force. アンカー部材は、中空部の奥端部を貫通させた穴に中空部口径よりもやや小径の雌ねじ穴を形成し、更に雌ねじ穴の先端部を接着剤が浸透しないように止め栓で塞いだ構成とすることを特徴とする、請求項2に記載した木質構造材の接合工法。   The anchor member has a structure in which a female screw hole slightly smaller than the diameter of the hollow part is formed in a hole that penetrates the inner end of the hollow part, and the tip of the female screw hole is closed with a stopper so that the adhesive does not penetrate. The wood structure material joining method according to claim 2, wherein: 連結用ボルトは、普通鋼、又は低降伏点鋼で製作することを特徴とする、請求項1〜3のいずれか一に記載した木質構造材の接合工法。   The joining method for a wooden structure material according to any one of claims 1 to 3, wherein the connecting bolt is made of plain steel or low yield point steel. 接合ブロックが鉄骨造の場合は、連結用ボルトにおいて木質構造材の木口から突き出る後端部に雄ねじを形成し、前記雄ねじ部を接合ブロックのボルト孔へ通しナットを締め込み接合することを特徴とする、請求項1〜3又は5のいずれか一に記載した木質構造材の接合工法。   When the joining block is a steel structure, a male screw is formed at the rear end portion protruding from the mouth of the wooden structure material in the connecting bolt, and the male screw portion is passed through the bolt hole of the joining block and the nut is tightened and joined. The joining method of the wooden structure material as described in any one of Claims 1-3 or 5. 接合ブロックがコンクリート造の場合は、連結用ボルトにおいて木質構造材の木口から突き出る後端部に同連結用ボルトの軸径よりも大径のコブを形成し、前記のコブを接合ブロックの型枠内へ一定のコンクリート被りとなる位置まで差し込み、同型枠内へ現場打ちコンクリートを打設して接合することを特徴とする、請求項1〜3又は5のいずれか一に記載した木質構造材の接合工法。   If the joint block is made of concrete, a bump having a diameter larger than the shaft diameter of the joint bolt is formed at the rear end of the joint bolt protruding from the wood mouth of the wooden structure material. The wood structure material according to any one of claims 1 to 3, wherein the concrete structure is inserted into a fixed concrete covering position, and cast-in-place concrete is cast into the same frame and joined. Joining method. コンクリート造の接合ブロック用型枠内に鉄筋を配筋して現場打ちコンクリートを打設し、又は鉄筋を配筋することなく繊維補強コンクリートを打設して連結用ボルトと接合することを特徴とする、請求項1〜3又は5若しくは7のいずれか一に記載した木質構造材の接合工法。   It is characterized by placing reinforcing bars in the concrete block form for concrete construction and placing cast-in-place concrete, or by placing fiber reinforced concrete without placing reinforcing bars and joining with connecting bolts. The joining method of the wooden structure material as described in any one of Claims 1-3 or 5 or 7. 木質構造材の木口から材軸方向へ複数の雌ねじ穴が形成されており、
中空円筒形状をなし、外周面には木質構造材の前記雌ねじ穴と共通仕様の雄ねじが形成され、中空部の奥端近傍に中空部口径よりもやや小径の雌ねじ穴が形成されて成るアンカー部材が木質構造材の前記雌ねじ穴へねじ込まれ固定されており、
先端部に前記アンカー部材の雌ねじ穴と共通仕様の雄ねじ部を有し、該雄ねじ部を前記雌ねじ穴へネジ接合すると木質構造材の木口から後端部が突き出す長さとされた連結用ボルトがその雄ねじ部を前記アンカー部材の雌ねじ穴へネジ接合して木質構造材へ設置されており、
木質構造材の木口から突き出た前記連結用ボルトの後端部が鉄骨造又はコンクリート造の接合ブロックと接合されていることを特徴とする、木質構造材の接合構造。



































A plurality of female screw holes are formed from the mouth of the wooden structure material in the direction of the material axis,
An anchor member having a hollow cylindrical shape, on the outer peripheral surface of which a male screw having the same specifications as the female screw hole of the wooden structure material is formed, and a female screw hole having a diameter slightly smaller than the hollow part diameter is formed near the inner end of the hollow part Is screwed into the female screw hole of the wooden structure material and fixed,
A connecting bolt having a male threaded portion of the same specification as the female threaded hole of the anchor member at the distal end, and having a length that protrudes from the wood end of the wooden structure material when the male threaded part is screwed into the female threaded hole, The male screw part is screwed to the female screw hole of the anchor member and installed in the wooden structure material,
A joining structure of a wooden structure material, characterized in that a rear end portion of the connection bolt protruding from the wooden mouth of the wooden structure material is joined to a steel structure or concrete joining block.



































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JP2015218463A (en) * 2014-05-15 2015-12-07 清水建設株式会社 Column beam joint structure
JP2018112038A (en) * 2017-01-13 2018-07-19 株式会社熊谷組 Method for joining column and beam, and column-beam joining structure
JP2018123628A (en) * 2017-02-03 2018-08-09 株式会社竹中工務店 Wood member joining structure
JP2020101020A (en) * 2018-12-21 2020-07-02 株式会社竹中工務店 Joint structure of wooden beam

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Publication number Priority date Publication date Assignee Title
JPH08120791A (en) * 1994-10-25 1996-05-14 Hiroshi Suzuki Joint fitting for construction member

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH08120791A (en) * 1994-10-25 1996-05-14 Hiroshi Suzuki Joint fitting for construction member

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010236239A (en) * 2009-03-31 2010-10-21 Keitsuu Kenchiku Sekkeisho:Kk Structure for connecting building material
JP2013068081A (en) * 2013-01-23 2013-04-18 Keitsuu Kenchiku Sekkeisho:Kk Structure for connecting building material
JP2015218464A (en) * 2014-05-15 2015-12-07 清水建設株式会社 Column beam joint structure
JP2015218463A (en) * 2014-05-15 2015-12-07 清水建設株式会社 Column beam joint structure
JP2018112038A (en) * 2017-01-13 2018-07-19 株式会社熊谷組 Method for joining column and beam, and column-beam joining structure
JP2018123628A (en) * 2017-02-03 2018-08-09 株式会社竹中工務店 Wood member joining structure
JP2020101020A (en) * 2018-12-21 2020-07-02 株式会社竹中工務店 Joint structure of wooden beam
JP7087263B2 (en) 2018-12-21 2022-06-21 株式会社竹中工務店 Joint structure of wooden beams

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