JP4779856B2 - Sheet glass joining structure - Google Patents

Sheet glass joining structure Download PDF

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JP4779856B2
JP4779856B2 JP2006204504A JP2006204504A JP4779856B2 JP 4779856 B2 JP4779856 B2 JP 4779856B2 JP 2006204504 A JP2006204504 A JP 2006204504A JP 2006204504 A JP2006204504 A JP 2006204504A JP 4779856 B2 JP4779856 B2 JP 4779856B2
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glass
plate glass
plate
bolt
tightening
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JP2008031681A (en
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宏幸 多門
雅貴 田原
健一 新井
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Central Glass Co Ltd
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  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
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Description

本発明は、貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、貫通孔に挿通させた一対の締め付け部材の締め付けにより生じる力で板ガラス同士を接合する建築用途の板ガラスの接合構造および接合方法に関する。   The present invention relates to a plate glass bonding structure and a bonding method for architectural use in which at least two or more plate glasses each having a through hole are stacked and the plate glasses are bonded to each other by force generated by tightening a pair of tightening members inserted through the through holes.

特に、本発明は、貫通孔を擁する少なくとも２枚以上の板ガラス同士を重ね、貫通孔にボルトを挿通し、ボルトに螺合させたナットとで板ガラスを締め付けて生じるボルト軸方向の力により、板ガラス同士を接合する建築用途の板ガラスの接合構造および接合方法に関する。   In particular, the present invention is based on the force in the axial direction of the bolt generated by stacking at least two or more plate glasses each having a through hole, inserting a bolt into the through hole, and fastening the plate glass with a nut screwed into the bolt. The present invention relates to a bonding structure and a bonding method of plate glass for building use for bonding together.

本発明の使用する建築用途としては、大型建築物である、ガラス壁、ガラス屋根、およびガラススクリーン、例えば、リブガラスを用いたリブガラススクリーンなどに使用される。   The architectural application used by the present invention is used for glass walls, glass roofs, and glass screens, for example, rib glass screens using rib glass, which are large buildings.

ガラス壁、ガラス屋根、大板ガラスを使用した開口部構成よりなるガラススクリーンなどの大型建築物において、板ガラスを高強度で接合すると、設計の自由度が高められる。例えば、目立つ金属方立の代りに、目立たないガラス方立て（リブガラス）を用いて、正面ガラス（フェイスプレート）に加わる風荷重を支持する工法に、ガラス・スタビライザー工法がある。   In a large building such as a glass screen having a glass wall, a glass roof, and an opening structure using large plate glass, if the plate glass is bonded with high strength, the degree of freedom in design is increased. For example, there is a glass stabilizer method for supporting a wind load applied to a front glass (face plate) by using an inconspicuous glass stand (rib glass) instead of a conspicuous metal stand.

板ガラス同士を高強度で接合することを、大型建築物に用いることができれば、大型建築物の設計の自由度が高まる。   If joining glass plates with high strength can be used for large buildings, the degree of freedom in designing large buildings increases.

従来の板ガラスの接合方法には、板ガラスと接合部材としての金属板とを重ねて、板ガラスと金属板に形成した貫通孔に一対の接合部材、例えば、ボルト・ナットを通して締めて固定することで、板ガラス同士を接合する、板ガラスを建造物などに接合する際に使用される摩擦接合がある。   In the conventional method for joining glass sheets, the glass sheet and a metal plate as a joining member are overlapped, and fixed by tightening through a pair of joining members, for example, bolts and nuts, in through holes formed in the glass sheet and the metal plate. There is friction bonding that is used when glass plates are bonded to each other, and when glass plates are bonded to a building or the like.

摩擦接合は、一対の締め付け部材で、板ガラスと接合部材とを厚み方向に締め付けて、板ガラスと接合部材との摩擦力で荷重を受け止める接合方法である。摩擦接合においては、接合部を増やし、一対の締め付け部材である、例えば、接合用ボルト・ナットを多く用いることで受け止められる支持荷重を大きくする。摩擦接合において、接合部を増やし接合用ボルト・ナットを多く用い、個々の接合部において受けとめる荷重を大きくしなかった背景には、ガラスは脆性材料であり１点に力がかかると割れることがあった。   Friction joining is a joining method in which a plate glass and a joining member are fastened in a thickness direction by a pair of fastening members, and a load is received by a frictional force between the sheet glass and the joining member. In the friction welding, the joint load is increased, and the supporting load that can be received is increased by using a large number of bolts and nuts, for example, a pair of fastening members. In friction welding, glass is a brittle material because glass is a brittle material because it has increased the number of joints and used many bolts and nuts for joining, and the load received at each joint is not large. It was.

一方、板ガラスと他の構造部材とを接合するために板ガラスに添接させた、あるいは板ガラスと板ガラスに掛け渡しした金属板などの接合部材の間に接着シートを挟みこみ、板ガラスと接合部材を接着し接合強度を得、加えて板ガラスと接合部材に設けた貫通孔に接合用ネジ部材を貫通させて締め込み板ガラスと接合部材を固定し留める方法が、特許文献１〜７にて開示されている。   On the other hand, an adhesive sheet is sandwiched between bonding members such as metal plates attached to the plate glass or joined between the plate glass and the plate glass to bond the plate glass and other structural members, and the plate glass and the bonding member are bonded. Patent Documents 1 to 7 disclose a method for securing the fastening plate glass and the joining member by obtaining the joining strength and passing the joining screw member through the through hole provided in the plate glass and the joining member. .

例えば、特許文献１には、板ガラスと接合部材との間に、未硬化の接着材を含浸させてある繊維材からなるシートを挟んで、板ガラスと接合部材とに形成した貫通孔に挿通したネジ部材で締め付け固定するガラスパネルの接合方法が開示されている。接合後のガラスパネルと板材との相対変位の発生を抑制するために、板ガラスと接合部材との間に未硬化の接着材を含浸させてある繊維材からなるシートを挟んで締め付け接合しておくことにより、その接着材が硬化するとシートがガラスパネルと板材の双方の表面に沿った形状に固まり、シートと一体に硬化した強固な接着層を介して、ガラスパネルと板材とを接着接合できると開示されている。   For example, Patent Document 1 discloses a screw inserted through a through-hole formed in a plate glass and a bonding member by sandwiching a sheet made of a fiber material impregnated with an uncured adhesive between the plate glass and the bonding member. A method of joining glass panels that are fastened and fixed by members is disclosed. In order to suppress the occurrence of relative displacement between the glass panel and the plate material after bonding, a sheet made of a fiber material impregnated with an uncured adhesive is sandwiched between the plate glass and the bonding member, and then bonded. Thus, when the adhesive is cured, the sheet is solidified along the surface of both the glass panel and the plate, and the glass panel and the plate can be bonded and bonded through a strong adhesive layer that is cured integrally with the sheet. It is disclosed.

また、特許文献３には、特許文献１よりも接合部の耐久性を高めるため、接着材を含浸させてある繊維材からなるシートに含浸させた接着剤が未硬化の状態で締め付け、接着剤硬化後に、所定のボルト軸方向の力に再度締め付けて接合する脆性部材の接合方法が開示されている。   Further, in Patent Document 3, in order to enhance the durability of the joint portion compared to Patent Document 1, the adhesive impregnated into the sheet made of the fiber material impregnated with the adhesive is tightened in an uncured state, A method for joining brittle members is disclosed in which after hardening, the bolts are retightened and joined to a predetermined bolt axial force.

さらに、特許文献７には、上記の接着による接合方法において、雄ネジ部材と雌ネジ部材などの締め付け具にて板ガラスと接合部材を締め付ける際に、貫通孔に充填剤を介在させて各締め付け具の外周面と板ガラス側貫通孔の内周面との間に隙間が生じない状態で締め付けることによって、板ガラスと接合部材との間にわたって応力が作用した際に、複数の板ガラス側貫通孔に作用する応力が均一化されるようにして特定の板ガラス側貫通孔に応力が集中するのを回避して板ガラスの損傷を抑制する板ガラスの接合方法が開示されている。   Further, in Patent Document 7, in the above-described bonding method, when fastening the plate glass and the joining member with a fastening tool such as a male screw member and a female screw member, each fastening tool is provided with a filler interposed in the through hole. When a stress is applied between the plate glass and the joining member, the plate glass side through-holes are acted on by tightening in a state where no gap is formed between the outer peripheral surface of the plate glass and the inner peripheral surface of the plate glass-side through hole. There has been disclosed a method of joining glass plates that prevents the stress from being concentrated in a specific plate glass side through-hole so that the stress is made uniform and suppresses damage to the glass plate.

特許文献１〜７に記載の板ガラスの接合方法は、板ガラスと接合部材とを強い締め付け力で締め付けて接合するものでなく、板ガラスと接合部を接着して接合強度を得る方法である。板ガラスのクラックの発生を懸念して接合用のネジ部材による締め付けは程々にし、接合強度は板ガラスと接合部材の接着に依存している。   The joining method of plate glass described in Patent Documents 1 to 7 is not a method of joining the plate glass and the joining member with a strong fastening force, but is a method of obtaining the joining strength by bonding the plate glass and the joining portion. In view of the occurrence of cracks in the plate glass, tightening with a screw member for bonding is moderate, and the bonding strength depends on the adhesion between the plate glass and the bonding member.

詳しくは、特許文献３によれば、板ガラスに厚さが１２ｍｍ〜１９ｍｍの強化ガラスであり、且つ、使用する接着剤がエポキシ系接着剤の場合、接合用ネジ部材の締め付けボルト軸方向の力は２９．４ｋＮ〜５３．９ｋＮ程度が望ましいとされている。ガラスに貫通孔を開ける場合、孔周りは荒ズリ加工されるため、ガラスの孔周りの強度は、ガラス表面の強度に比べて弱く、ガラスの孔周りに６０ｋＮ程度の締め付け力が作用するとガラスが破損することがあった。そのため、孔周りに締め付け力が作用する特許文献１や特許文献３の方法では、締め付け力を上げることで接合箇所の耐久性を高めるには限界があった。
特開２０００−８７９２４号公報 特開２０００−８７９２５号公報 特開２００２−１５５９０９号公報 特開２００２−１６２３２５号公報 特開２００２−２６６８１８号公報 特開２００４−３４０１７８号公報 特開２００３−３２７４５３号公報 Specifically, according to Patent Document 3, when the plate glass is a tempered glass having a thickness of 12 mm to 19 mm and the adhesive used is an epoxy adhesive, the force in the tightening bolt axial direction of the joining screw member is About 29.4 kN to 53.9 kN is considered desirable. When opening a through-hole in glass, since the periphery of the hole is rough-grinded, the strength around the hole in the glass is weak compared to the strength of the glass surface, and when a clamping force of about 60 kN acts around the hole in the glass, It was sometimes damaged. Therefore, in the methods of Patent Document 1 and Patent Document 3 in which a tightening force acts around the hole, there is a limit in increasing the durability of the joint portion by increasing the tightening force.
JP 2000-87924 A JP 2000-87925 A JP 2002-155909 A JP 2002-162325 A JP 2002-266818 A JP 2004-340178 A JP 2003-327453 A

従来の板ガラスの接合方法である摩擦接合において、板ガラスの貫通孔に挿入した一対の締め付け部材、例えば、ボルト・ナットで強く板ガラスを締め付けると、締め付け部に局所的な力が生じ、特に板ガラスの貫通孔の端部から破損しやすいという問題があった。   In friction welding, which is a conventional method of joining plate glass, when a plate glass is strongly tightened with a pair of fastening members, for example, bolts and nuts inserted into the through holes of the plate glass, a local force is generated in the tightening portion, and in particular, through the plate glass. There was a problem of being easily damaged from the end of the hole.

特に、貫通孔を設けた板ガラス同士を重ねて、ボルト・ナットなどで強く板ガラスを締め付けることは、板ガラスの貫通孔の端部から破損しやすいため行われたことはなかった。   In particular, it has been never performed to overlap plate glasses provided with through holes and to strongly tighten the plate glasses with bolts / nuts or the like because they are easily damaged from the end portions of the through holes of the plate glass.

また、前述した従来の板ガラスと接合部材を接着する接合方法においては、板ガラスの接合部をネジ部材で留めてはいるものの、接合強度は板ガラスと接合部材である板材の間に挟みこんだ接着シートによる接着に頼っており、一対の締め付け部材として、例えば、ボルト・ナットで強く締め付けて生じるボルト軸方向の力を、板ガラス内部に強い圧縮応力が生じるまで与え、ガラス自体の剛性を利用して板ガラスと板材を接合するものではなかった。接着シートによる接着により接合するため、接合後の解体が困難である。   Moreover, in the joining method which adhere | attaches the conventional plate glass and joining member mentioned above, although the junction part of plate glass is fastened with the screw member, joining strength is the adhesive sheet pinched | interposed between the plate glass and the board | plate material which is a joining member As a pair of tightening members, for example, a bolt axial force generated by tightening firmly with bolts and nuts is applied until a strong compressive stress is generated inside the sheet glass, and the glass itself is utilized by utilizing the rigidity of the sheet glass. It was not to join the plate material. Since it joins by adhesion | attachment with an adhesive sheet, the disassembly after joining is difficult.

本発明の建築用途の板ガラスの接合構造は、少なくとも２枚以上の板ガラスを重ね、板ガラスに形成した貫通孔に、一対の締め付け部材である、例えば、ボルト・ナットを挿通し、板ガラス貫通孔の孔周りには、一対の締め付け部材の締め付けによる力、例えば、ボルト・ナットの締め付けによるボルト軸方向の力を加えないで、孔周りを避けて、ボルト・ナットの締め付けによるボルト軸方向の力を板ガラスに加え、板ガラス内部にクラックの発生および伝播を抑制する圧縮応力を生じさせ、板ガラスの見掛の強度を増加させることを特徴とし、板ガラス同士を強固に接合するもので、接合部がずれることのない耐久性の高い板ガラス同士の接合を提供するものである。   The plate glass bonding structure for architectural use according to the present invention includes a pair of fastening members, for example, bolts and nuts inserted into through holes formed on the plate glass by laminating at least two plate glasses, and holes in the plate glass through holes. Do not apply a force by tightening a pair of tightening members, for example, a bolt axial force by tightening a bolt and nut, avoid surrounding the hole, and force the bolt axial force by tightening the bolt and nut. In addition, it generates compressive stress that suppresses the generation and propagation of cracks inside the glass sheet, and increases the apparent strength of the glass sheets. It provides a non-durable sheet glass-to-plate connection.

本発明の建築用途の板ガラスの接合方法に使用する一対の締め付け部材には、一対の油圧部材、バネ部材、ネジ部材が挙げられるが、トルクレンチなどで締め付け力が調整でき、ボルト・ナットの締め付けにより強いボルト軸方向の力が容易に得られるボルト・ナットを用いることが好ましく、特に、強いボルト軸方向の力が得られ、ボルト軸方向の力の調整が容易な六角ボルト・ナットが好ましい。   The pair of tightening members used in the method for joining sheet glass for architectural purposes of the present invention includes a pair of hydraulic members, spring members, and screw members. The tightening force can be adjusted with a torque wrench, etc., and bolts and nuts can be tightened. It is preferable to use a bolt and nut that can easily obtain a stronger force in the bolt axis direction, and in particular, a hexagon bolt and nut that can obtain a strong force in the bolt axis direction and easily adjust the force in the bolt axis direction.

本発明の建築用途の板ガラスの接合構造において、一対の締め付け部材であるボルトとボルトに螺合させたナットとで複数の板ガラスを強く締め付けて板ガラス同士を接合する際に、板ガラスと板ガラスとの間、ボルト頭と板ガラスとの間、および／またはナットと板ガラスとの間に挟みこんだ応力発生部材を用いることで、ボルト・ナットの強い締め付けによるボルト軸方向の強い力を、脆く割れが発生しやすい板ガラスの貫通孔の孔周りには作用させないようにして、応力発生部材が圧接する板ガラス内部の圧接部位にボルト軸方向の強い力による強い圧縮応力を生じさせ、強い圧縮応力により、圧縮部位内のクラックの発生および伝播を抑制し、板ガラスの見掛の強度を増加させることを特徴として、板ガラ同士を強固に接合する。応力発生部材を用いることで、接合部がずれることなく耐久性の高い板ガラス同士の接合部が提供される。   In the joining structure of sheet glass for architectural use according to the present invention, when a plurality of sheet glasses are strongly tightened with a bolt that is a pair of tightening members and a nut screwed to the bolts, the sheet glasses are joined together. By using a stress generating member sandwiched between the bolt head and the plate glass and / or between the nut and the plate glass, the strong force in the bolt axial direction due to the strong tightening of the bolt and nut causes brittle cracks. It is not allowed to act around the through-holes of the plate glass that is easy to touch, and a strong compressive stress due to a strong force in the bolt axis direction is generated in the press-contact portion inside the plate glass where the stress generating member is pressed. The generation and propagation of cracks are suppressed, and the apparent strength of the sheet glass is increased, and the sheet glass is firmly joined to each other. By using the stress generating member, a bonded portion between plate glasses having high durability is provided without shifting the bonded portion.

尚、本発明の建築用途の板ガラスの接合構造および接合方法において、圧接とは、応力発生部材を板ガラスに強く圧することで、応力発生部材を強い力で板ガラスに接触させることを指す。応力発生部材とは、板ガラスを強く圧し、板ガラス内部に圧縮応力を発生させる部材である。   In addition, in the joining structure and joining method of the plate glass of this invention for building use, pressure welding refers to making a stress generation member contact plate glass with strong force by pressing a stress generation member strongly to plate glass. The stress generating member is a member that presses the plate glass strongly to generate a compressive stress inside the plate glass.

詳しくは、本発明の建築用途の板ガラスの接合構造は、一対の締め付け部材、例えば、ボルト・ナットの強い締め付けによるボルト軸方向の力を、板ガラスの間に挟んだ応力発生部材、例えば、座金などを介して伝達する際、座金の孔の径を板ガラスにあけたボルト孔より大きくし同心状に配置することで、脆く割れが発生しやすい板ガラスの貫通孔の端部を避けてボルト軸方向の力を伝え、また板ガラスに接触させた座金を介し、板ガラスに直に小面積でボルト軸方向の力を伝え、板ガラス内部に強い圧縮応力を生じさせて、圧縮応力を生じさせた板ガラス圧縮部位のクラックの発生および伝播を抑制し、板ガラスの見掛の強度を増加させることを特徴とする。板ガラスに応力発生部材を強く圧接させることで、板ガラス自体の剛性を利用した強い接合強度が得る、全く新規の板ガラス同士の接合構造、いうなれば圧縮接合というべき概念である。   Specifically, the structure for joining glass plates for architectural use according to the present invention is a pair of fastening members, for example, stress generating members, for example, washers, sandwiching a force in the bolt axial direction by strong tightening of bolts and nuts between the glass plates. The diameter of the washer hole is larger than the bolt hole drilled in the plate glass and placed concentrically to avoid the end of the plate glass through-hole that is brittle and easily cracked. Through the washer that is in contact with the plate glass, the force in the bolt axis direction is directly transmitted to the plate glass in a small area, and a strong compressive stress is generated inside the plate glass. It is characterized by suppressing the occurrence and propagation of cracks and increasing the apparent strength of the plate glass. This is a concept that should be referred to as compression bonding, that is, a completely new bonding structure between plate glasses, in which a strong bonding strength using the rigidity of the plate glass itself is obtained by strongly pressing the stress generating member to the plate glass.

板ガラス内部に強い圧縮応力を生じさせると、板ガラスの圧縮部位のクラックの発生および伝播の方向性が制限されるので、板ガラスの圧縮部位のクラックの発生および伝播が抑制され、強い圧縮応力により、板ガラスの見掛の強度が増加する。   When a strong compressive stress is generated inside the plate glass, the direction of crack generation and propagation in the compression portion of the plate glass is limited. Therefore, the generation and propagation of the crack in the compression portion of the plate glass is suppressed, and the strong compression stress reduces the plate glass. The apparent strength of increases.

即ち、本発明の建築用途の板ガラスの接合構造、言い換えれば圧縮接合は、前述の摩擦接合、ガラスと金属板材を接着する接合方法とは全く異なる考えの接合であり、一対の締め付け部材である、例えば、ボルト・ナットの強い締め付けによるボルト軸方向の力を、板ガラスと板ガラスの間に挟んだ応力発生部材、例えば、座金などを強く板ガラスに圧接させて、板ガラス内部に強い圧縮応力が生じるように伝達し、圧縮応力を生じさせた板ガラスの圧縮部位におけるクラックの発生および伝播を防止し、板ガラスの見掛の強度を増加させることを特徴とし、板ガラス自体の剛性を利用して板ガラス同士を接合するものである。   That is, the bonding structure of sheet glass for architectural use according to the present invention, in other words, compression bonding, is a bonding of a completely different idea from the above-described friction bonding, the bonding method of bonding glass and a metal plate, and is a pair of fastening members. For example, the force in the axial direction of the bolt due to strong tightening of bolts and nuts is applied to a stress generating member sandwiched between the plate glass, for example, a washer, etc., so that a strong compressive stress is generated inside the plate glass. It is characterized by preventing the occurrence and propagation of cracks in the compressed part of the sheet glass that has transmitted and caused the compressive stress, increasing the apparent strength of the sheet glass, and joining the sheet glass using the rigidity of the sheet glass itself Is.

本発明の建築用途の板ガラスの接合構造によれば、応力発生部材に座金など使用し、座金の内径を板ガラスの貫通孔の直径より大きくして、同心状に配置して締め付けることで、割れが発生しやすい板ガラスの貫通孔部を避けて、一対の締め付け部材の締め付けにより生じる強い力、例えば、ボルト・ナットの締め付けにより生じるボルト軸方向の力を伝えられ、また座金を介して小面積でボルト軸方向の力を伝えるので、座金からの強い単位面積当たりの力によりで板ガラスに対する強い圧接が得られ、板ガラス同士の強い接合強度が得られる。   According to the construction structure of the sheet glass for architectural use of the present invention, the use of a washer or the like as the stress generating member, the inner diameter of the washer is larger than the diameter of the through hole of the sheet glass, and concentrically arranged and tightened, thereby causing cracks. By avoiding the plate glass through-holes that are likely to occur, a strong force generated by tightening a pair of tightening members, for example, the force in the bolt axial direction generated by tightening bolts and nuts can be transmitted, and bolts with a small area via a washer Since the force in the axial direction is transmitted, a strong pressure per unit area from the washer provides a strong pressure contact with the plate glass and a strong bonding strength between the plate glasses.

さらに、接合構造を解体するときはボルト・ナットを弛めればよいので、板ガラスと接合部材を接着する従来の接合方法に比べ解体が容易である。   Furthermore, when the joint structure is disassembled, the bolts and nuts may be loosened, so disassembly is easier than in the conventional joining method in which the plate glass and the joining member are bonded.

また、応力発生部材の貫通孔の直径を、前記板ガラスに形成した貫通孔の直径より大きくすることにより、一対の締め付け部材であるボルト・ナットなどで強く締め付けた際に生じるボルト軸方向の強い力を、貫通孔の端部を避けて、板ガラス内部に強い圧縮応力を生じさせることが可能となり、板ガラスの見掛の強度を増加させて、耐久性の高い板ガラス同士の接合構造が得られた。   In addition, by making the diameter of the through-hole of the stress generating member larger than the diameter of the through-hole formed in the plate glass, a strong force in the bolt axial direction that is generated when tightening with a bolt / nut as a pair of tightening members Thus, it was possible to avoid the end of the through-hole and to generate a strong compressive stress inside the plate glass, to increase the apparent strength of the plate glass, and to obtain a highly durable plate glass bonding structure.

即ち、建築用途に使用する本発明のガラスの接合方法において、橋やビル等の鋼構造物の接合方法として用いられる、高力ボルト摩擦接合で使用されるボルト・ナットの締め付けによる６０ｋＮ以上のボルト軸方向の力、言い換えれば、一対の応力部材の締め付けにより生じる６０kＮ以上の力で、板ガラス同士を締め付けても、板ガラスが破損せず、強い接合強度が得られた。なお、一対の応力部材の締め付けにより生じる力が３００ｋＮより大きいと、板ガラス本来の高い剛性があっても破損の恐れがある。   That is, in the glass joining method of the present invention used for architectural applications, a bolt of 60 kN or more by tightening a bolt and nut used in high-strength bolt friction joining, which is used as a joining method for steel structures such as bridges and buildings. Even if the plate glasses were fastened with an axial force, in other words, a force of 60 kN or more generated by fastening the pair of stress members, the plate glasses were not damaged, and a strong bonding strength was obtained. Note that if the force generated by tightening the pair of stress members is greater than 300 kN, there is a risk of breakage even if the plate glass inherently has high rigidity.

即ち、本発明は、貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、貫通孔に挿通させた一対の締め付け部材の締め付けにより生じる力により板ガラス同士を接合した板ガラスの接合部にあって、締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力を、板ガラスと板ガラスとの間に挟んで板ガラスに圧接させた応力発生部材で板ガラスに伝達し、板ガラスに圧縮応力を生じさせて、板ガラス同士を接合したことを特徴とする建築用途の板ガラスの接合構造である。   That is, the present invention includes a plate glass joining portion in which at least two plate glasses each having a through hole are stacked, and the plate glasses are joined together by a force generated by fastening of a pair of fastening members inserted through the through holes. The generated force of 60 kN or more and 300 kN or less is transmitted to the plate glass by a stress generating member which is sandwiched between the plate glass and pressed against the plate glass, and compressive stress is generated on the plate glass to join the plate glasses together. It is the joining structure of the plate glass for architectural use.

さらに、本発明は、一対の締め付け部材がボルト・ナットであり、貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、板ガラスに形成した貫通孔にボルトを挿通し、ボルトとボルトに螺合させたナットの締め付けにより生じる力であるボルト軸方向の６０ｋＮ以上、３００ｋＮ以下の力を、板ガラスと板ガラスとの間に挟んで板ガラスに圧接させた応力発生部材で板ガラスに伝達し、板ガラス同士に圧縮応力を生じさせて、板ガラス同士を接合したことを特徴とする上記の建築用途の板ガラスの接合構造である。   Further, in the present invention, the pair of fastening members are bolts and nuts, and at least two or more plate glasses having through holes are stacked, the bolts are inserted into the through holes formed in the plate glass, and screwed into the bolts and the bolts. A force of 60 kN or more and 300 kN or less in the bolt axis direction, which is a force generated by tightening the nut, is transmitted to the sheet glass by a stress generating member sandwiched between the sheet glass and the sheet glass, and compressive stress is applied between the sheet glasses. It is made to produce and it is the joining structure of the plate glass of said architectural use characterized by joining plate glass.

さらに、本発明は、板ガラスと板ガラスとの間に加え、ボルト頭部と板ガラス、およびナットと板ガラスの間にも、応力発生部材を挟んで、ボルト軸方向の６０ｋＮ以上、３００ｋＮ以下の力で締め付けていることを特徴とする上記の建築用途の板ガラスの接合構造である。   Furthermore, in the present invention, in addition to between the plate glass and the plate glass, between the bolt head and the plate glass and between the nut and the plate glass, the stress generating member is sandwiched and tightened with a force of 60 kN or more and 300 kN or less in the bolt axial direction. It is the joining structure of the plate glass for said architectural use characterized by the above-mentioned.

さらに、本発明は、前記応力発生部材が貫通孔を擁することを特徴とする上記の建築用途の板ガラスの接合構造である。   Furthermore, the present invention is the above-described plate glass bonding structure for architectural use, wherein the stress generating member has a through hole.

さらに、本発明は、前記応力発生部材の貫通孔の直径が、板ガラスに形成した貫通孔の直径よりも大きいことを特徴とする上記の板ガラスの接合構造である。   Furthermore, the present invention is the above-described plate glass bonding structure, wherein the diameter of the through hole of the stress generating member is larger than the diameter of the through hole formed in the plate glass.

応力発生部材には、一対の締め付け部材の締め付けにより生じる力、例えば、ボルト・ナットの強力な締め付けによるボルト軸方向の力により、変形しない硬さおよび剛性が必要であり、ポリエーテルエーテルケトン、繊維強化プラスチックなどの硬く高剛性の材料から選ばれるが、加工作製が容易で入手のし易さから、貫通孔を擁する座金が好適に使用される。   The stress generating member needs to have hardness and rigidity that do not deform due to the force generated by tightening a pair of tightening members, for example, the force in the bolt axial direction due to strong tightening of bolts and nuts. A hard and highly rigid material such as reinforced plastic is selected, but a washer having a through hole is preferably used because it is easy to fabricate and is easily available.

さらに、本発明は、前記応力発生部材が座金であり、板ガラスの貫通孔に対して同心状に配置したことを特徴とする上記の板ガラスの接合構造である。   Furthermore, the present invention is the above-described plate glass bonding structure, wherein the stress generating member is a washer and is disposed concentrically with respect to the through hole of the plate glass.

この際、ボルト頭部・ナットの外径よりも応力発生部材の貫通孔の直径を小さくすることで、６０ｋＮ以上のボルト軸方向の力で板ガラスと接合部材を締め付けることが容易となる。通常、六角ボルト・ナットにおいては、ボルト頭部、ナットの最大の外径を対角距離と呼ぶ。強い締め付けトルクを伝えるには六角ボルト・ナットを使用することが好ましく、中でも建築用で使用される摩擦接合用高力ボルト・ナットが好適に使用される。   At this time, by making the diameter of the through hole of the stress generating member smaller than the outer diameter of the bolt head / nut, it becomes easy to fasten the plate glass and the joining member with a force in the bolt axial direction of 60 kN or more. Normally, in the hexagon bolt and nut, the maximum outer diameter of the bolt head and nut is called a diagonal distance. In order to transmit a strong tightening torque, it is preferable to use hexagon bolts and nuts, and among them, high-strength bolts and nuts for friction joining used in construction are preferably used.

さらに、本発明は、ボルトの頭部・ナットの外径よりも応力発生部材の貫通孔の直径を小さくしたことを特徴とする上記の板ガラスの接合構造である。   Furthermore, the present invention is the above plate glass joining structure characterized in that the diameter of the through hole of the stress generating member is smaller than the outer diameter of the bolt head and nut.

さらに、本発明は、ボルト・ナットが六角ボルト・ナットであり、六角ボルト・ナットの対角距離よりも応力発生部材の貫通孔の直径を小さくしたことを特徴とする上記の板ガラスの接合構造である。   Furthermore, the present invention provides the above plate glass joining structure, wherein the bolt / nut is a hexagon bolt / nut, and the diameter of the through hole of the stress generating member is smaller than the diagonal distance of the hexagon bolt / nut. is there.

また、本発明は、貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、貫通孔に挿通させた一対の締め付け部材の締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力で、応力発生部材を板ガラス間に挟んで板ガラスに圧接し、板ガラス内部に圧縮応力を生じるように締め付けて、板ガラス同士を接合することを特徴とする建築用途の板ガラスの接合方法である。   In the present invention, at least two or more plate glasses each having a through hole are stacked, and the stress generating member is sandwiched between the plate glasses with a force of 60 kN or more and 300 kN or less generated by fastening a pair of fastening members inserted into the through holes. It is press-contacted to plate glass, it clamp | tightens so that a compressive stress may be produced inside plate glass, and plate glass is joined, The plate glass for building use characterized by the above-mentioned.

さらに、本発明は、一対の締め付け部材がボルト・ナットであり、板ガラスの貫通孔にボルトを挿通し、ボルトとボルトに螺合させたナットによる板ガラスと接合部材の締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力で、応力発生部材を板ガラス間に挟んで板ガラスに圧接し、板ガラス内部に圧縮応力を生じるように締め付けて、板ガラス同士を接合することを特徴とする上記の建築用途の板ガラスの接合方法である。   Further, according to the present invention, the pair of tightening members are bolts and nuts, the bolts are inserted into the through holes of the plate glass, and the plate glass and the joining member are tightened by the nuts screwed to the bolts and bolts. With the above-mentioned method, in the above-mentioned method of joining glass sheets for architectural use, the stress generating member is sandwiched between the glass sheets and pressed against the glass sheets, and is tightened so as to generate a compressive stress inside the glass sheets, thereby joining the glass sheets together. is there.

圧縮接合による本発明の建築用途のガラスの接合方法において、応力発生部材を用いることで、割れが発生しやすい板ガラスの貫通孔部を避けて、応力発生部材を板ガラスに圧接させるとともに、圧接時の板ガラスと応力発生部材の圧接面積の設定、および一対の締め付け部材、例えば、ボルト、ナットの締め付けトルクの調整により、板ガラス内部に生じる圧縮応力の大きさを任意に設定でき、板ガラス圧縮部位にクラックの発生および伝播が起こることを抑制し、板ガラスの見掛強度を増加させるのに、好適な圧縮応力が得られた。   In the method of bonding glass for architectural use of the present invention by compression bonding, by using a stress generating member, avoiding the through-hole portion of the plate glass that is likely to crack, the pressure generating member is pressed against the plate glass, and at the time of pressing By setting the pressure contact area between the plate glass and the stress generating member and adjusting the tightening torque of a pair of fastening members, for example, bolts and nuts, the magnitude of the compressive stress generated inside the plate glass can be set arbitrarily, and cracks in the plate glass compression site can be set. A suitable compressive stress was obtained to suppress occurrence and propagation and increase the apparent strength of the glass sheet.

応力発生部材を使わない場合と異なり、板ガラスの１点に、特に貫通孔部にボルト軸方向の力が集中することなく、締め付けトルクに対しての板ガラスが破壊される限界を飛躍的に上げることが可能となった。   Unlike the case where no stress generating member is used, the limit of the plate glass against the tightening torque is dramatically increased without concentrating the force in the bolt axis direction on one point of the plate glass, particularly in the through hole. Became possible.

よって、本発明の建築用途の板ガラスの接合方法により、板ガラスを一対の締め付け部材であるボルト、ナットで強力に締め付けるのみで、板ガラス同士が強く接合固定される。   Therefore, the sheet glass is strongly bonded and fixed only by strongly tightening the sheet glass with the bolts and nuts as a pair of tightening members by the method for bonding sheet glass for architectural use of the present invention.

従来、ガラスは脆性材料であり一箇所、言い換えれば、１点に力がかかると割れる、板ガラスに貫通孔を設け、ボルトを通して強く板ガラスを締め付けると、締め付け部に局所的な力が生じ、孔端部から割れが発生し、板ガラスが破損するため、板ガラスに貫通孔を設け強く締め付けることは避けるべきであり、行ってはいけないとされ、板ガラスをボルト・ナットなどで強く締め付けて接合されることはなかった。   Conventionally, glass is a brittle material and breaks when a force is applied to one point, in other words, when a plate glass is provided with a through hole, and when the plate glass is strongly tightened through a bolt, a local force is generated at the tightening portion, Since cracks occur in the plate and the plate glass is damaged, it should be avoided to tighten the plate glass with a through-hole, and it should not be done. There wasn't.

しかしながら、本発明の建築用途の板ガラスの接合方法において、応力発生部材を用いることで、脆い板ガラスの貫通孔部を避け、一対の締め付け部材であるボルト・ナットなどの締め付けによるボルト軸方向の力を、ボルト・ナットの締め付け加減、および板ガラスに圧接する応力発生部材の面積を調整することで、板ガラスの圧縮部位に対してクラックの発生および伝播を防止するのに好適な圧縮応力が生じ、板ガラスの見掛の強度を増加させて、板ガラス圧縮部位にクラックの発生および伝播が起こることを抑制し、板ガラスの見掛強度を増加させて、本来の板ガラスの持つ高い剛性を生かした前述の圧縮接合が可能となった。   However, in the method for joining sheet glass for architectural use according to the present invention, by using a stress generating member, avoiding a through-hole portion of a fragile sheet glass, the force in the bolt axial direction by tightening a bolt / nut as a pair of tightening members. By adjusting the tightening of bolts and nuts and adjusting the area of the stress generating member that presses against the plate glass, a compressive stress suitable for preventing the generation and propagation of cracks to the compressed portion of the plate glass is generated. By increasing the apparent strength, suppressing the occurrence and propagation of cracks in the plate glass compression site, increasing the apparent strength of the plate glass, the above-mentioned compression bonding utilizing the high rigidity of the original plate glass It has become possible.

本発明の建築用途の板ガラスの接合方法により、応力発生機材を用いることで、板ガラスを一対の締め付け部材であるボルト・ナットなどで少々強く締め付けても、板ガラスが破壊されることはなく強い板ガラス同士の強い接合強度が得られた。これは驚くべき結果である。   By using the stress generating equipment by the method of joining the plate glass for architectural use of the present invention, even if the plate glass is a little tightened with a pair of fastening members such as bolts and nuts, the plate glass is not destroyed and is strong between the plate glasses Strong joint strength was obtained. This is a surprising result.

本発明の建築用途の板ガラスの接合方法において、応力発生部材を用いることで、板ガラスを貫通孔に、一対の締め付け部材であるボルト、ナットなどの締め付けによる強いボルト軸方向の力が加わらなくなり、孔部を避けて強いボルト軸方向の力を、板ガラス内部にクラックの発生、伝播を抑制する強い圧縮応力が生じるように作用させ、板ガラスの見掛の強度を増加させて、耐久性の高い板ガラスの接合が得られた。   In the method for joining sheet glass for architectural use according to the present invention, by using a stress generating member, a strong bolt axial force due to tightening of a bolt, a nut or the like as a pair of tightening members is not applied to the through hole in the sheet glass. Avoid strong parts in the direction of the bolt axis, causing cracks in the plate glass to generate strong compressive stress that suppresses the generation and propagation of the plate, increasing the apparent strength of the plate glass, Bonding was obtained.

また、本発明の板ガラスの接合方法である圧縮接合において、接合部を増やすことで接合強度を高められる。   Moreover, in the compression joining which is the joining method of the plate glass of this invention, joining strength can be raised by increasing a junction part.

さらに、本発明は、複数の貫通孔を前記板ガラスに形成し、貫通孔の各々に挿通したボルトにナットを螺合して、板ガラス同士を応力発生部材で挟んで締め付けることを特徴とする上記の建築用途の板ガラスの接合方法である。   Furthermore, the present invention is characterized in that a plurality of through holes are formed in the plate glass, nuts are screwed into bolts inserted through the through holes, and the plate glasses are clamped by stress generating members. This is a method of joining flat glass for architectural use.

一対の締め付け部材、例えば、ボルト・ナットの強い締め付けによるボルト軸方向の力を、ボルト頭と板ガラス、ナットと板ガラス、または複数の板ガラスの間に挟んだ応力発生部材、例えば、座金などを介して板ガラスに圧縮応力が生じるように伝達し、板ガラスに応力発生部材を圧接することで、圧縮応力を生じさせた板ガラス内部の圧縮部位におけるクラックの発生および伝播を抑制し、板ガラスの見掛の強度を増加させることを特徴とする、板ガラス自体の剛性を利用する本発明の建築用途の板ガラスの接合構造および接合方法によって、応力発生部材に座金などを使用し、座金の内径を板ガラスの貫通孔の直径より大きくすることで、割れが発生しやすい板ガラスの貫通孔の孔端部を避けてボルト軸方向の力を伝えられ、また座金を介して小面積でボルト軸方向の力を板ガラスに伝えるので、座金からの単位面積当たりの圧力により、板ガラスに強い圧縮応力が発生し、板ガラスの見掛の強度を増加させて、板ガラス同士の強い接合強度が得られた。   A pair of tightening members, for example, a bolt axial force due to strong tightening of bolts and nuts, via a stress generating member such as a washer sandwiched between the bolt head and plate glass, nut and plate glass, or a plurality of plate glasses By transmitting so that compressive stress is generated in the plate glass and pressing the stress generating member on the plate glass, the generation and propagation of cracks in the compression site inside the plate glass that caused the compressive stress is suppressed, and the apparent strength of the plate glass is increased. By using a sheet glass bonding structure and a bonding method for architectural use of the present invention, which utilizes the rigidity of the sheet glass itself, the washer is used as a stress generating member, and the inner diameter of the washer is the diameter of the through hole of the sheet glass. By making it larger, it is possible to transmit the force in the bolt axis direction by avoiding the hole end of the through-hole of the glass plate where cracks are likely to occur. Since the force in the direction of the bolt axis is transmitted to the sheet glass through a small area, a strong compressive stress is generated on the sheet glass due to the pressure per unit area from the washer, increasing the apparent strength of the sheet glass, and strong between the sheet glasses Bonding strength was obtained.

詳しくは、本発明の建築用途の板ガラスの接合構造および接合方法においては、貫通孔をあけた板ガラス同士を重ねて、一対の締め付け部材であるボルト・ナットで締め付け、ボルト・ナットの締め付けによるボルト軸方向の力で、板ガラスに圧縮応力を生じさせて接合する際に、板ガラスの間、ボルトと板ガラスとの間、または、ナットと板ガラスの間に単純な応力発生部材である座金を入れることで、座金を介してボルト・ナットで締め付けた際のボルトの軸方向のボルト軸方向の力を板ガラスへ圧縮応力が生じるように伝達し、圧縮応力をボルト・ナットの締め付け加減、板ガラスへの座金の圧接面積で調整することが可能となり、圧縮応力を生じさせたガラス内部のクラックの発生および伝播が抑制され、板ガラスの見掛の強度を増加させて、座金からの圧接により、板ガラス同士の強い接合強度が得られた。   In detail, in the joining structure and joining method of the plate glass for architectural use according to the present invention, the plate glasses having through holes are overlapped with each other, tightened with a bolt / nut as a pair of fastening members, and a bolt shaft by tightening the bolt / nut. By inserting a washer, which is a simple stress generating member, between the plate glass, between the bolt and the plate glass, or between the nut and the plate glass when joining the plate glass with compressive stress caused by the direction force, Transmits the bolt axial force in the axial direction of the bolt when tightened with bolts and nuts through the washer to the plate glass so that compressive stress is generated, compresses the bolt and nut, and presses the washer against the plate glass. The area can be adjusted, and the generation and propagation of cracks inside the glass that caused compressive stress is suppressed, increasing the apparent strength of the plate glass. By, by pressing from the washer, strong bonding strength of the plate glass to each other was obtained.

また、前記応力発生部材としての座金の貫通孔の直径を、即ち、座金の内径を、前記板ガラスに形成した貫通孔の直径よりも大きくすることで、板ガラスにあけた貫通孔の端部に、ボルト・ナットの締め付けによるボルト軸方向の力が加わらなくなり、例えば、橋やビル等の鋼構造物の接合方法として用いられている高力ボルト摩擦接合で導入される、ボルト・ナットの締め付けによる強いボルト軸方向の力、６０ｋＮ以上、３００ｋＮ以下の範囲で、板ガラスを締め付けることで、圧縮応力を生じさせたガラス内部の圧縮部位におけるクラックの発生および伝播が抑制され、板ガラスの見掛の強度を増加させて、板ガラスが破損しなくなり、接合後の耐久性の高い板ガラス同士の接合が可能となった。   Further, the diameter of the through hole of the washer as the stress generating member, i.e., by making the inner diameter of the washer larger than the diameter of the through hole formed in the plate glass, at the end of the through hole opened in the plate glass, The bolt axial force due to tightening of bolts and nuts is no longer applied. For example, strong force due to tightening of bolts and nuts introduced in high-strength bolt friction welding used as a method of joining steel structures such as bridges and buildings By tightening the plate glass in the range of 60 kN or more and 300 kN or less in the axial direction of the bolt axis, the generation and propagation of cracks at the compression site inside the glass that caused the compressive stress is suppressed, and the apparent strength of the plate glass is increased. As a result, the plate glass is not damaged, and it is possible to bond the plate glasses having high durability after bonding.

即ち、応力発生部材を用いたことで、板ガラスと座金の狭い接触面で、一対の締め付け部材であるボルト・ナットの締め付けによるボルト軸方向の力が伝わるので、接合した板ガラスが滑る恐れは少なくなり、接合後の耐久性の高い板ガラス同士の接合が可能となった。   That is, by using the stress generating member, the force in the bolt axial direction due to the tightening of the bolts and nuts, which are a pair of tightening members, is transmitted on the narrow contact surface between the sheet glass and the washer. It became possible to bond plate glasses having high durability after bonding.

さらに、接合構造を解体するときはボルト・ナットを弛めればよいので、解体が容易である。   Furthermore, when the joint structure is disassembled, the bolts and nuts may be loosened, so disassembly is easy.

最初に、前述の摩擦接合とは異なる圧縮接合というべき考えの本発明の板ガラスの接合構造について、図１を用いて説明する。   Initially, the joining structure of the plate glass of this invention of the idea which should be compression joining different from the above-mentioned friction joining is demonstrated using FIG.

図１は、本発明の建築用途の板ガラスの接合構造による板ガラス同士の接合部の拡大側面図である。なお、ボルト１、ナット２以外は断面で示している。   FIG. 1 is an enlarged side view of a joint portion between plate glasses by a plate glass joint structure for architectural use according to the present invention. The sections other than the bolt 1 and nut 2 are shown in cross section.

図２は、本発明の建築用途の板ガラスの接合構造により接合した板ガラスの一例の正面図である。   FIG. 2 is a front view of an example of sheet glass joined by the structure for joining glass sheets for architectural use according to the present invention.

本発明の合わせガラスを使用する板ガラスの接合構造は、一対の締め付け部材であるボルト１、ナット２の強い締め付けによるボルト軸方向の力を、応力発生部材である座金３、詳しくは、板ガラスＧ、Ｇ´の間に挟んだ座金３、ボルト１とガラスＧとの間に挟んだ座金３、またはナット２とガラスＧ´の間に挟んだ座金３を介して、板ガラスＧ、Ｇ´に圧縮応力となるように伝達し、板ガラスＧ、Ｇ´に座金３が圧接することで、板ガラスＧ、Ｇ´の内部に圧縮応力を発生させ、板ガラスＧ、Ｇ´の見掛の強度を増加させて、板ガラスＧ、Ｇ´自体の剛性を利用して、板ガラスＧ、Ｇ´同士を接合するものである。   The joining structure of the plate glass using the laminated glass of the present invention is that a bolt 1 as a pair of fastening members and a force in the bolt axial direction due to strong fastening of the nut 2 are applied to a washer 3 as a stress generating member. Compressive stress is applied to the glass sheets G and G ′ via the washer 3 sandwiched between G ′, the washer 3 sandwiched between the bolt 1 and the glass G, or the washer 3 sandwiched between the nut 2 and the glass G ′. And the washer 3 is pressed against the glass sheets G and G ′, thereby generating a compressive stress inside the glass sheets G and G ′, and increasing the apparent strength of the glass sheets G and G ′. The plate glasses G and G ′ are joined to each other using the rigidity of the plate glasses G and G ′ themselves.

本発明の板ガラスの接合構造によれば、応力伝達部材である座金３の貫通孔の直径を、言い換えれば、座金３の内径を、板ガラスＧ、Ｇ´の貫通孔の直径より大きくすることで、割れが発生しやすい板ガラスＧ、Ｇ´の孔端部４を避けて、ボルト１、ナット２の締め付けによるボルト軸方向の力を伝えられ、また、座金３を介して小面積で板ガラスＧ、Ｇ´にボルト軸方向の力を伝えるので、座金３よりの単位面積当たりの力により板ガラスＧ、Ｇ´による強い圧接が得られ、接合部がずれる恐れが少ない。   According to the joining structure of the plate glass of the present invention, by making the diameter of the through hole of the washer 3 as a stress transmission member, in other words, the inner diameter of the washer 3 larger than the diameter of the through hole of the plate glass G, G ′, By avoiding the hole ends 4 of the glass plates G and G ′, which are likely to be cracked, the force in the bolt axial direction by tightening the bolts 1 and 2 can be transmitted. Since the force in the direction of the bolt axis is transmitted to ′, strong press-contact by the sheet glass G, G ′ is obtained by the force per unit area from the washer 3, and there is little possibility that the joint portion is displaced.

また、本発明の板ガラスの接合構造を用いて、板ガラスＧ、Ｇ´を接合する際は、座金３の大きさを選ぶことで、板ガラスＧ、Ｇ´への座金３の圧接面積が任意に設定でき、加えて、ボルト軸方向の力の加減により、板ガラスＧ、Ｇ´の内部に生じる圧縮応力の大きさが調整可能となる。圧縮応力を調整することで、板ガラスＧ、Ｇ´の圧縮部位において、クラックが発生および伝播することが抑制され、板ガラスの見掛の強度を増加させることで、板ガラス自身の強度が活かせる。   In addition, when the plate glasses G and G ′ are bonded using the plate glass bonding structure of the present invention, the pressure contact area of the washer 3 to the plate glasses G and G ′ is arbitrarily set by selecting the size of the washer 3. In addition, by adjusting the force in the bolt axis direction, the magnitude of the compressive stress generated inside the glass sheets G and G ′ can be adjusted. By adjusting the compressive stress, the generation and propagation of cracks in the compressed portions of the plate glasses G and G ′ can be suppressed, and the apparent strength of the plate glass can be increased by utilizing the strength of the plate glass itself.

本発明の板ガラスの接合構造において、応力伝達部材の貫通孔の直径、言うなれば、座金３の内径を、板ガラスＧ、Ｇ´の貫通孔の直径より大きくすることで、板ガラスＧ、Ｇ´をボルト１、ナット２で締め付けて接合する際、割れが発生しやすい板ガラスＧ、Ｇ´の孔端部４にボルト軸方向の力が加わらなくなる。このようにして、貫通穴に挿入したボルト１、ナット２で板ガラスＧ、Ｇ´を、応力発生部材である座金３を介して締め付けたとき、板ガラスＧ、Ｇ´と座金３との圧接部から、ボルト軸方向の力が伝わり、板ガラスＧ内部に圧縮応力が生じるようになる。言い換えれば、座金３を用いることで、割れが発生しやすい板ガラスＧ、Ｇ´の孔端部４を避けて、板ガラスＧ、Ｇ´内部に圧縮応力を生じさせる。その結果、板ガラスＧ，Ｇ´の見掛の強度が増加して、板ガラスＧ、Ｇ´が破損し難くなる。   In the plate glass bonding structure of the present invention, the diameter of the through hole of the stress transmission member, in other words, the inner diameter of the washer 3 is made larger than the diameter of the through hole of the plate glass G, G ′, so that the plate glass G, G ′ is When the bolts 1 and nuts 2 are fastened and joined, no force in the bolt axial direction is applied to the hole ends 4 of the glass sheets G and G ′ that are likely to be cracked. In this way, when the plate glass G, G ′ is tightened with the bolt 1 and the nut 2 inserted into the through hole through the washer 3 which is a stress generating member, from the pressure contact portion between the plate glass G, G ′ and the washer 3. The force in the bolt axis direction is transmitted, and compressive stress is generated inside the glass sheet G. In other words, by using the washer 3, a compressive stress is generated inside the plate glasses G and G ′ while avoiding the hole ends 4 of the plate glasses G and G ′ that are likely to be cracked. As a result, the apparent strength of the glass sheets G and G ′ increases, and the glass sheets G and G ′ are hardly damaged.

このように、板ガラスＧ、Ｇ´および座金３の貫通孔を円形とし同心状に配置した際、座金３の内径が、板ガラスＧ、Ｇ´の貫通孔の直径よりも小さいと、ボルト１、ナット２で板ガラスＧ、Ｇ´を応力発生部材である座金３を介して締め付けたとき、板ガラスＧ、Ｇ´の貫通孔の端部４に座金３からのボルト軸方向の力が作用し、割れが発生しやすく板ガラスＧ、Ｇ´が破損する恐れがある。   Thus, when the through holes of the plate glasses G and G ′ and the washer 3 are circular and concentrically arranged, if the inner diameter of the washer 3 is smaller than the diameter of the through holes of the plate glasses G and G ′, the bolt 1 and the nut 2, when the plate glass G, G ′ is tightened through the washer 3 as a stress generating member, the force in the bolt axial direction from the washer 3 acts on the end 4 of the through hole of the plate glass G, G ′, and cracks are generated. It is easy to generate | occur | produce and there exists a possibility that plate glass G and G 'may be damaged.

この際、ボルト１、ナット２を強く締め付けた際に発生するボルト軸方向の強い力により、割れを生じさせないためには、板ガラスＧ、Ｇ´に形成した貫通孔の直径より、応力発生部材である座金３の内径を、１ｍｍ以上、好ましくは４ｍｍ以上大きくする。この際、板ガラスＧ、Ｇ´の貫通孔の端部４と座金３が重ならないためには、円形の座金３を用い、板ガラスＧ、Ｇ´の貫通孔に対して座金３を同心状に配置することが好ましい。   At this time, in order not to cause a crack due to a strong force in the bolt axis direction generated when the bolt 1 and the nut 2 are strongly tightened, a stress generating member is used from the diameter of the through hole formed in the plate glass G, G ′. The inner diameter of a certain washer 3 is increased by 1 mm or more, preferably 4 mm or more. At this time, in order to prevent the end portions 4 of the through holes of the plate glasses G and G ′ and the washers 3 from overlapping, a circular washer 3 is used, and the washers 3 are arranged concentrically with respect to the through holes of the plate glasses G and G ′. It is preferable to do.

このように、座金３の内径を、板ガラスＧ、Ｇ´の貫通孔に対し１ｍｍ以上、好ましくは４ｍｍ以上大きくする、要するに、板ガラスＧ、Ｇ´の貫通孔の端部４から座金３までの間隔を０．５ｍｍ以上、好ましくは２ｍｍ以上とする。座金３の内径を、板ガラスＧの貫通孔に対し１ｍｍ未満、板ガラスＧ、Ｇ´の貫通孔の端部４から座金３の内周までの間隔が、０．５ｍｍ未満では、板ガラスＧ、Ｇ´の貫通孔の端部４に力が伝播し割れが生じる恐れがある。座金４の内径を、板ガラスＧ、Ｇ´の貫通孔の直径に対して、２０ｍｍを超えて大きくすると、ボルト軸方向の力が伝達され難くなるので、２０ｍｍ以内であることが好ましい。   Thus, the inner diameter of the washer 3 is increased by 1 mm or more, preferably 4 mm or more with respect to the through holes of the plate glasses G and G ′. In short, the distance from the end 4 of the through hole of the plate glasses G and G ′ to the washer 3. Is 0.5 mm or more, preferably 2 mm or more. When the inner diameter of the washer 3 is less than 1 mm with respect to the through hole of the plate glass G and the distance from the end 4 of the through hole of the plate glass G, G ′ to the inner periphery of the washer 3 is less than 0.5 mm, the plate glass G, G ′ There is a risk that a force may propagate to the end 4 of the through hole to cause cracking. If the inner diameter of the washer 4 is larger than 20 mm with respect to the diameter of the through holes of the plate glasses G and G ′, the force in the bolt axis direction is difficult to be transmitted, and therefore it is preferably within 20 mm.

ボルト１、ナット２による締め付けトルクは、橋やビル等の鋼構造物の接合方法として用いられている高力ボルト摩擦接合で導入されるボルト・ナット締め付けによる強いボルト軸方向の力、６０ｋＮ〜３００ｋＮが得られる１００Ｎ・ｍ〜１０００Ｎ・ｍに設定される。   The tightening torque of the bolt 1 and nut 2 is a strong bolt axial force due to bolt-nut tightening introduced in high-strength bolt friction joining used as a joining method for steel structures such as bridges and buildings, 60 kN to 300 kN Is set to 100 N · m to 1000 N · m.

また、座金３の内径がボルト１の対角距離よりも小さいと、６０ｋＮ以上のボルト軸方向の力で板ガラスＧ、Ｇ´の重なり部を締め付けることが容易となる。   Further, when the inner diameter of the washer 3 is smaller than the diagonal distance of the bolt 1, it is easy to tighten the overlapping portion of the plate glasses G and G ′ with a force in the bolt axial direction of 60 kN or more.

要するに、図１に示すように、座金３の内径がボルト１、ナット２の対角距離よりも小さいと、ボルト１、ナット２の強力な締め付けによるボルト軸方向の力が板ガラスＧ、Ｇ´に直線的に伝わる。このように、ボルト頭の下、ナット２の上に座金３が配置されると、ボルト軸方向の力が、直線的に座金５、座金３、板ガラスＧ、ボルト３、板ガラスＧ´、座金３、座金５に直線的に伝わる。斜めに伝わると、強く締め付けられないばかりか、各々の圧接部に局所的な力がかかり、板ガラスＧが破損する恐れがある。   In short, as shown in FIG. 1, when the inner diameter of the washer 3 is smaller than the diagonal distance of the bolt 1 and nut 2, the force in the bolt axial direction due to the strong tightening of the bolt 1 and nut 2 is applied to the plate glasses G and G '. It is transmitted in a straight line. As described above, when the washer 3 is disposed under the bolt head and on the nut 2, the force in the bolt axial direction is linearly the washer 5, the washer 3, the sheet glass G, the bolt 3, the sheet glass G ′, and the washer 3. , Transmitted to the washer 5 linearly. When transmitted obliquely, not only is it not strongly tightened, but a local force is applied to each pressure contact portion, and the glass sheet G may be damaged.

この際、ボルト１の頭部の対角距離、ナット２の対角距離より、応力発生部材の貫通孔の直径、例えば、座金３の内径が、２ｍｍ以上小さいこと、より好ましくは５ｍｍ以上小さいことが好ましい。こうすることで、同心としてボルト１、ナット２で締め付けたとき、ボルト１の頭部、ナット２の座金４に対するかかり代が、１ｍｍ以上、好ましくは２．５ｍｍ以上となり、確実にボルト１、ナット２の締め付けによるボルト軸方向の力が、応力発生部材である座金３に伝わる。   At this time, the diameter of the through hole of the stress generating member, for example, the inner diameter of the washer 3 is smaller by 2 mm or more, more preferably by 5 mm or more than the diagonal distance of the head of the bolt 1 and the diagonal distance of the nut 2. Is preferred. By doing so, when the bolt 1 and the nut 2 are concentrically tightened, the margin of the bolt 1 on the head and the nut 2 with respect to the washer 4 is 1 mm or more, preferably 2.5 mm or more. The force in the bolt axis direction due to the tightening of 2 is transmitted to the washer 3 which is a stress generating member.

圧縮接合において、ボルト１、ナット２により強く締め付けて、ボルト軸方向の強い力を得るためには、高力六角ボルト・ナット、言い換えると、機械的性質による等級がＦ８Ｔ以上の高力六角ボルト、または、強度区分が８．８、１０．９、１２．９の六角ボルト・ナット、または、トルシア形高力ボルトを使用することが好ましく、中でも建築で使用される摩擦接合用高力ボルト・ナット、言い換えると、機械的性質による等級がＦ８Ｔ以上の高力六角ボルト・ナットが好適に使用される。   In compression joining, in order to obtain a strong force in the bolt axis direction by tightening with bolt 1 and nut 2, a high-strength hexagon bolt and nut, in other words, a high-strength hexagon bolt with a mechanical property grade of F8T or higher, Or, it is preferable to use hexagon bolts and nuts with strength categories of 8.8, 10.9, and 12.9, or torcia type high strength bolts, and especially high strength bolts and nuts for friction joining used in construction. In other words, high strength hexagon bolts and nuts having a mechanical property grade of F8T or higher are preferably used.

応力発生部材である座金３には、Ｆ８Ｔ以上の高力六角ボルト・ナットの締め付けによる強いボルト軸方向の力に耐え、変形することなきよう、座金の機械的性質による等級がＦ３５以上の座金４が好適に用いられる。   The washer 3 which is a stress generating member has a grade of F35 or more according to the mechanical properties of the washer so that it can withstand the strong force in the axial direction of the bolt caused by tightening a high-strength hexagonal bolt and nut of F8T or higher and does not deform. Are preferably used.

高力六角ボルト・ナット・座金の機械的性質による等級については、ＪＩＳ Ｂ１１８６−１９９５「摩擦接合用高力六角ボルト六角ナット、平座金のセット」に準拠する。   The grade of high-strength hexagon bolts, nuts, and washers according to mechanical properties conforms to JIS B1186-1995 “Set of high-strength hexagon bolts, nuts and plain washers for friction joining”.

なお、ボルト１、ナット２を締め付ける際に締め付けやすく締め付け工具のトルクを伝えやすいので、ボルト１、ナット２と接合部材の間に座金５を噛ませると良い。   In addition, when tightening the bolt 1 and the nut 2, it is easy to tighten, and it is easy to transmit the torque of the tightening tool. Therefore, it is preferable to insert a washer 5 between the bolt 1 and the nut 2 and the joining member.

以上、図１に示すような接合部を多数設けて、図２に示すように板ガラスＧ、Ｇ´を重ねて接合すると板ガラスＧ、Ｇ´に強い接合強度が得られる。   As described above, when a large number of joints as shown in FIG. 1 are provided and the plate glasses G and G ′ are overlapped and joined as shown in FIG. 2, a strong joint strength is obtained for the plate glasses G and G ′.

また、本発明の建築用途の板ガラスの接合方法で３枚以上の板ガラスを接合すれば、強い建築構造材となり、柱、梁などに利用される。しかしながら、４枚を超えて、板ガラスを重ね合わせることは、既に十分な強度が得られているので、建築物の構造材としては考え難く４枚を超えて、板ガラス同士を接合することがなく、建築用途において本発明の板ガラスの接合方法が使用されるのは実質的に４枚以下である。   Moreover, if 3 or more sheet glass is joined by the joining method of the plate glass of the architectural use of this invention, it will become a strong building structure material and will be utilized for a pillar, a beam, etc. However, it is difficult to think of it as a structural material of a building because it is already possible to superimpose sheet glass exceeding 4 sheets, because sufficient strength has been obtained. In the architectural application, the sheet glass bonding method of the present invention is used in practically no more than four sheets.

板ガラスＧ、Ｇ´の接合部に２個以上、この好ましくは４個以上の貫通孔を各々空けて、締め付け部材と座金３を用いて、各貫通孔を本発明の建築用途の板ガラスの接合構造とし、板ガラスＧ、Ｇ´同士を接合すれば、一対の締め付け部材の締め付けによる６０ｋＮ以上、３００ｋＮ以下の力、締め付け部材に、ボルト１、ナット２を使用したときは、ボルト１、ナット２の締め付けによるボルト軸方向の６０ｋＮ以上、３００ｋＮ以下の力が各接合部に作用し、板ガラス同士が強く接合する。   Two or more, preferably four or more through-holes are formed in the joint portions of the plate glasses G and G ′, and each through-hole is joined to a plate glass for architectural use according to the present invention by using a fastening member and a washer 3. When the glass plates G and G ′ are joined together, when the bolt 1 and the nut 2 are used as the fastening member, the force of 60 kN or more and 300 kN or less by fastening the pair of fastening members, the bolt 1 and the nut 2 are fastened. A force of 60 kN or more and 300 kN or less in the bolt axis direction due to the above acts on each joined portion, and the plate glasses are strongly joined.

この際、板ガラスＧ、Ｇ´の厚み、および板ガラスＧ、Ｇ´の貫通孔の直径にもよるが、異なる貫通孔の間隔が、異なる貫通孔の端部４間の最短距離で３０ｍｍ以下の間隔であると、貫通孔をあけたことにより板ガラスＧ自体の強度が失われる。孔をあけられる最大個数は、板ガラスＧ、Ｇ´の大きさと前述の間隔によって決まる。   At this time, although depending on the thickness of the plate glasses G and G ′ and the diameter of the through holes of the plate glasses G and G ′, the interval between the different through holes is 30 mm or less at the shortest distance between the end portions 4 of the different through holes. If it is, the intensity | strength of plate glass G itself will be lost by opening a through-hole. The maximum number of holes that can be drilled is determined by the size of the glass sheets G and G ′ and the aforementioned interval.

本発明の建築用途の板ガラスの接合構造および接合方法に用いる板ガラスＧ、Ｇ´には、フロート法で製造した板ガラス、強化ガラス、倍強度ガラス、熱線吸収ガラス、熱線反射ガラス、各種表面処理を施した板ガラス、これらの複数枚を適宜組み合わせて構成したものなどが挙げられる。圧縮接合により強いボルト１、ナット２の締め付けにより強い接合強度を得るために、表面圧縮応力が８０ＭＰａ以上で、厚さが９ｍｍ以上の強化ガラスを用いることが好ましい。上限は市販される強化ガラスの最大の厚さ、１９ｍｍ以下となる。なお、表面圧縮応力が、１３０ＭＰａを上回る大型の強化ガラスは製造が難しく、建築用途に実質的に使用されないので、本発明に用いる強化ガラスの表面圧縮応力は１３０ＭＰａ以下である。   The glass sheets G and G ′ used in the bonding structure and bonding method of the glass sheet for architectural use of the present invention are subjected to plate glass, tempered glass, double-strength glass, heat ray absorbing glass, heat ray reflecting glass, and various surface treatments manufactured by the float process. Plate glass, and those obtained by appropriately combining a plurality of these. In order to obtain strong joint strength by tightening bolt 1 and nut 2 by compression joining, it is preferable to use tempered glass having a surface compressive stress of 80 MPa or more and a thickness of 9 mm or more. The upper limit is 19 mm or less, the maximum thickness of tempered glass that is commercially available. In addition, since the large tempered glass whose surface compressive stress exceeds 130 MPa is difficult to manufacture and is not practically used for architectural purposes, the surface compressive stress of the tempered glass used in the present invention is 130 MPa or less.

尚、孔部周辺の中間膜に替えて、貫通孔を擁する高剛性のスペーサーを板ガラス間に挟みこみ、ボルト１、ナット２の締め付けによるボルト軸方向の力に耐えるようにした合わせガラスなどにも、本発明の板ガラスの接合構造および方法は適用される。   In addition, instead of the interlayer film around the hole, a laminated glass with a high rigidity spacer that has a through-hole is sandwiched between the glass plates to withstand the axial force of the bolt 1 and nut 2 tightened. The plate glass bonding structure and method of the present invention are applied.

図３は、本実施例における試験片の上面図である。   FIG. 3 is a top view of the test piece in this example.

図３に示すように、中心に２４ｍｍφの貫通孔７をあけた板厚、１２ｍｍ、大きさ、３００ｍｍ×３００ｍｍ角の２枚の強化ガラスＧ、Ｇ´を用意した。強化ガラスＧ、Ｇ´はフロート法で製造した板ガラスを軟化点付近まで加熱後、風冷し表面に圧縮応力を与えたものである。   As shown in FIG. 3, two tempered glasses G and G ′ having a plate thickness of 12 mm, a size, and a 300 mm × 300 mm square with a through hole 7 of 24 mmφ in the center were prepared. The tempered glasses G and G ′ are obtained by heating a plate glass manufactured by a float process to the vicinity of the softening point and then cooling the plate glass to give a compressive stress to the surface.

図４は、本発明の実施例における板ガラスの接合部の拡大側面図である。なお、ボルト１、ナット２以外は断面で示している。   FIG. 4 is an enlarged side view of a joined portion of plate glass in the embodiment of the present invention. The sections other than the bolt 1 and nut 2 are shown in cross section.

図４に示すように、ボルト１、ナット２と座金３の間に座金５を挟んだ。座金５は、呼び径、Ｍ２０、厚み、４．５ｍｍ、外径、４０ｍｍ、内径、２１ｍｍ、機械的性質による等級はＦ３５である。座金５を用いることにより、一対の締め付け部材であるボルト１、ナット２を締め付ける際に締め付けやすく、締め付け工具のトルクを伝えやすい。   As shown in FIG. 4, a washer 5 is sandwiched between the bolt 1, the nut 2, and the washer 3. The washer 5 has a nominal diameter of M20, a thickness of 4.5 mm, an outer diameter of 40 mm, an inner diameter of 21 mm, and a mechanical property grade F35. By using the washer 5, it is easy to tighten when tightening the bolt 1 and the nut 2 which are a pair of tightening members, and it is easy to transmit the torque of the tightening tool.

また、強化ガラスＧ、Ｇ´を重ねて接合する際に、強化ガラスＧ、Ｇ´の孔端部４に圧縮応力を加えないように、応力発生部材として、強化ガラスＧ、Ｇ´と座金５の間に挟みこむ座金３、および強化ガラスＧ、Ｇ´の間に挟み込む座金３には、呼び径、Ｍ３０、厚み、５．５ｍｍ、外径、６０ｍｍ、内径、３１ｍｍ、機械的性質による等級はＦ３５のものを用いた。   Further, when the tempered glasses G and G ′ are overlapped and joined, the tempered glasses G and G ′ and the washer 5 are used as stress generating members so that compressive stress is not applied to the hole ends 4 of the tempered glasses G and G ′. For the washer 3 sandwiched between and the washer 3 sandwiched between the tempered glasses G and G ′, the nominal diameter, M30, thickness, 5.5 mm, outer diameter, 60 mm, inner diameter, 31 mm The one of F35 was used.

各々のＭ３０の座金３を強化ガラスＧ、Ｇ´に圧接する際は、強化ガラスＧ、Ｇ´の貫通孔と同心円となるように配置して、強化ガラスＧ、Ｇ´の貫通孔の端部４には、座金３を接触させないようにしている。   When each M30 washer 3 is pressed against the tempered glass G, G ′, it is arranged so as to be concentric with the through hole of the tempered glass G, G ′, and the end of the through hole of the tempered glass G, G ′. 4, the washer 3 is not brought into contact.

図４に示すように、強化ガラスＧ、Ｇ´の貫通孔７と座金３の貫通孔とが同心状となるように配置し、座金３の内周から強化ガラスＧ、Ｇ´の孔端部４までの距離を３．５ｍｍとし、ボルト１、ナット２の締め付けによるボルト軸方向の力を加えた際、割れ発生の開始点となりやすい貫通孔７の端部４を避けて、ボルト１、ナット２で締め付けられるようにした。なお、強化ガラスＧ、Ｇ´の貫通孔７と座金３の貫通孔とが同心状となるように配置する際に、位置決めがしやすいよう、図示しないゴムまたは樹脂製の二重円状のスペーサーを貫通孔の空間部に入れた。   As shown in FIG. 4, it arrange | positions so that the through-hole 7 of tempered glass G and G 'and the through-hole of washer 3 may become concentric, and the hole edge part of tempered glass G and G' from the inner periphery of washer 3 When the force up to 4 is 3.5 mm and a force in the bolt axial direction is applied by tightening the bolt 1 and nut 2, avoid the end 4 of the through-hole 7, which tends to start cracking. Tightened with 2. It should be noted that a rubber or resin double circular spacer (not shown) is provided for easy positioning when the through holes 7 of the tempered glass G and G ′ and the through holes of the washer 3 are arranged concentrically. Was placed in the space of the through hole.

次いで、上記の強化ガラスＧ、Ｇ´の締め付けテストを行った。   Next, a tightening test of the tempered glasses G and G ′ was performed.

締め付け用のボルト１、ナット２は、摩擦接合用高力六角ボルト・ナット座金のセット、株式会社ＮＳボルテン製のものを使用した。ボルト１は呼び径、Ｍ２０、首下長さ、８０ｍｍ、対角距離、３７ｍｍ、機械的性質による等級はＦ１０Ｔである。ナット２は呼び径、Ｍ２０、対角距離、３７ｍｍ、機械的性質による等級はＦ１０である。   As bolts 1 and nuts 2 for tightening, a set of high strength hexagon bolts and nut washers for friction joining, NS Volten Co., Ltd. was used. Bolt 1 has a nominal diameter, M20, length under neck, 80 mm, diagonal distance, 37 mm, and the grade according to mechanical properties is F10T. The nut 2 has a nominal diameter, M20, a diagonal distance, 37 mm, and a mechanical property grade of F10.

重ね合わせた強化ガラスＧ、Ｇ´、個々の座金３、５に貫通させたボルト１にナット２をねじ込み、トルクレンチを用いて１５０Ｎ・ｍのトルクで一次締めした後、そこからナット２を１２０度回転させて、ナット回転法に従い締め付けたが、強化ガラスＧ、Ｇ´は破損しなかった。なお、このときボルト１に発生するボルト軸方向の力は２５０ｋＮであった。   The nut 2 is screwed into the bolt 1 passed through the laminated tempered glasses G and G ′ and the individual washers 3 and 5, and is first tightened with a torque wrench with a torque of 150 N · m, and then the nut 2 is removed from there. The tempered glass G and G ′ were not broken, although they were rotated according to the nut rotation method. At this time, the force in the bolt axial direction generated in the bolt 1 was 250 kN.

２５０ｋＮのボルト軸方向の力で締め付けて、強化ガラスＧ、Ｇ´が破損しなかったのは、割れが生じやすい、強化ガラスＧ、Ｇ´の貫通孔の端部４にボルト軸方向の力を直接作用させないようにしたことに加え、強化ガラスＧ、Ｇ´の圧縮部位において、圧縮応力により板ガラスのクラック発生および伝播が抑制され、板ガラスの見掛の強度を増加したことによると思われる。   The reason why the tempered glass G, G ′ was not damaged by tightening with a force of 250 kN in the bolt axial direction is that the force in the bolt axial direction is applied to the end portion 4 of the through hole of the tempered glass G, G ′, which is easy to break. In addition to avoiding direct action, it is considered that cracking and propagation of the plate glass were suppressed by the compressive stress at the compression sites of the tempered glasses G and G ′, and the apparent strength of the plate glass was increased.

図３に示すように、中心に２０ｍｍφの貫通孔７をあけた板厚、１２ｍｍ、大きさ、３００ｍｍ×３００ｍｍ角の２枚の強化ガラスＧ、Ｇ´を用意した。強化ガラスＧ、Ｇ´は軟化点付近まで加熱後、風冷し表面に圧縮応力を与えたものである。   As shown in FIG. 3, two tempered glasses G and G ′ having a plate thickness of 12 mm, a size, and a 300 mm × 300 mm square with a through hole 7 of 20 mmφ in the center were prepared. The tempered glasses G and G ′ are heated to the vicinity of the softening point and then air-cooled to give compressive stress to the surface.

図４に示すように、一対の締め付け部材であるボルト１、ナット２と座金３との間に座金５を挟んだ。座金５には、Ｍ１６の座金５、厚み、４．５ｍｍ、外径、３２ｍｍ、内径、１７ｍｍ、機械的性質による等級はＦ３５である。座金５を用いることにより、ボルト１、ナット２を締め付ける際に締め付けやすく、締め付け工具のトルクを伝えやすい。   As shown in FIG. 4, a washer 5 is sandwiched between a bolt 1, a nut 2, and a washer 3 as a pair of fastening members. The washer 5 is an M16 washer 5, thickness, 4.5 mm, outer diameter, 32 mm, inner diameter, 17 mm, and the mechanical property grade is F35. By using the washer 5, it is easy to tighten the bolt 1 and the nut 2 and transmit torque of the tightening tool.

また、強化ガラスＧ、Ｇ´を重ねて接合する際に、強化ガラスＧ、Ｇ´の貫通孔７の端部４に圧縮応力を作用させないよう応力発生部材として、強化ガラスＧ、Ｇ´と座金５の間、および強化ガラスＧ、Ｇ´の間に挟み込む座金３には、呼び径、Ｍ２４、厚み５．５ｍｍ、外径、４８ｍｍ、内径、２５ｍｍ、機械的性質による等級はＦ３５のものを用いた。   Further, when the tempered glasses G and G ′ are overlapped and joined, the tempered glasses G and G ′ and a washer are used as a stress generating member so as not to apply a compressive stress to the end 4 of the through hole 7 of the tempered glasses G and G ′. For the washer 3 sandwiched between 5 and tempered glass G and G ′, the nominal diameter, M24, thickness 5.5 mm, outer diameter, 48 mm, inner diameter, 25 mm, and mechanical properties of F35 are used. It was.

各々のＭ２４の座金３を強化ガラスＧ、Ｇ´に圧接する際は、強化ガラスＧ、Ｇ´の貫通孔７の端部４には、座金３を接触させないようにしている。   When the washers 3 of each M24 are pressed against the tempered glasses G and G ′, the washers 3 are not brought into contact with the end portions 4 of the through holes 7 of the tempered glasses G and G ′.

図３に示すように、強化ガラスＧ、Ｇ´の貫通孔７と座金３の貫通孔とが同心状になるように配置し、座金３の内周から強化ガラスＧ、Ｇ´の孔端部４までの距離を２．５ｍｍとし、ボルト軸方向の力を加えた際、割れ発生の開始点となりやすい貫通孔７の端部４を避けて、ボルト１、ナット２で締め付けられるようにした。なお、強化ガラスＧ、Ｇ´の貫通孔７と座金３の貫通孔とが同心状になるように配置する際の位置決めがしやすいよう、図示しないゴムまたは樹脂製の二重円状のスペーサーを貫通孔の空間部に入れた。   As shown in FIG. 3, it arrange | positions so that the through-hole 7 of tempered glass G and G 'and the through-hole of washer 3 may become concentric, and the hole edge part of tempered glass G and G' from the inner periphery of washer 3 The distance up to 4 was 2.5 mm, and when a force in the bolt axial direction was applied, the bolt 4 and the nut 2 were tightened while avoiding the end 4 of the through hole 7 that would easily become the starting point of cracking. In order to facilitate positioning when the tempered glass G, G ′ through hole 7 and the washer 3 are arranged concentrically, a rubber or resin double circular spacer (not shown) is used. It put in the space part of the through-hole.

次いで、上記の強化ガラスＧ、Ｇ´の締め付けテストを行った。   Next, a tightening test of the tempered glasses G and G ′ was performed.

締め付け用のボルト１、ナット２は、摩擦接合用高力六角ボルト・ナット座金のセット、株式会社ＮＳボルテン製のものを使用した、ボルト１は呼び径、Ｍ１６、首下長さ、８０ｍｍ、対角距離、３１ｍｍ、機械的性質による等級はＦ１０Ｔである。ナット２は呼び径、Ｍ１６、対角距離、３１ｍｍ、機械的性質による等級等はＦ１０である。   The bolt 1 and nut 2 for tightening were a set of high-strength hexagon bolts and nut washers for friction joining, NS Volten Co., Ltd., and the bolt 1 was nominal diameter, M16, neck length, 80mm, Angular distance, 31 mm, mechanical property grade is F10T. The nut 2 has a nominal diameter, M16, diagonal distance, 31 mm, and the grade based on mechanical properties is F10.

重ね合わせた強化ガラスＧ、Ｇ´に、個々の座金３、５に貫通させたボルト１にナット２をねじ込み、トルクレンチを用いて１００Ｎ・ｍのトルクで一次締めした後、そこからナット２を１２０度回転させて、ナット回転法に従い締め付けたが、強化ガラスＧ、Ｇ´は破損しなかった。なお、このときボルト１に発生するボルト軸方向の力は２５０ｋＮであった。   The nuts 2 are screwed into the bolts 1 passed through the individual washers 3 and 5 in the superposed tempered glasses G and G ′, and are first tightened with a torque wrench with a torque of 100 N · m, and the nut 2 is then removed therefrom. Although it rotated 120 degree | times and was tightened according to the nut rotation method, tempered glass G and G 'were not damaged. At this time, the force in the bolt axial direction generated in the bolt 1 was 250 kN.

２５０ｋＮのボルト軸方向の力で締め付けて、強化ガラスＧ、Ｇ´が破損しなかったのは、割れが生じやすい、強化ガラスＧ、Ｇ´の貫通孔の端部４にボルト軸方向の力を直接作用させないようにしたことに加え、強化ガラスＧ、Ｇ´の圧縮部位において、圧縮応力により板ガラスのクラック発生および伝播が抑制され、板ガラスの見掛の強度が増加したことによると思われる。   The reason why the tempered glass G, G ′ was not damaged by tightening with a force of 250 kN in the bolt axial direction is that the force in the bolt axial direction is applied to the end portion 4 of the through hole of the tempered glass G, G ′, which is easy to break. In addition to avoiding direct action, it is considered that cracking and propagation of the plate glass were suppressed by the compressive stress at the compression sites of the tempered glasses G and G ′, and the apparent strength of the plate glass was increased.

座金３に、呼び径、Ｍ２０、厚み４．５ｍｍ、外径、４０ｍｍ、内径、２１ｍ、機械的性質による等級はＦ３５のものを用いた以外は、実施例２と同様の手順でガラスの締め付けテストを行った。   A glass tightening test in the same procedure as in Example 2 except that a nominal diameter, M20, a thickness of 4.5 mm, an outer diameter, 40 mm, an inner diameter, 21 m, and a mechanical property grade F35 were used. Went.

座金３の内周から強化ガラスＧの貫通孔の端部５までの距離を０．５ｍｍとしたことで、ボルト軸方向の力を加えた際、割れ発生の開始点となりやすい孔端部４を避けて、ボルト１、ナット２で締め付けられるようにした。   By setting the distance from the inner periphery of the washer 3 to the end 5 of the through hole of the tempered glass G to 0.5 mm, the hole end 4 that is likely to be the starting point of cracking when the force in the bolt axial direction is applied. To avoid this, bolts 1 and nuts 2 were tightened.

実施例１、２と同様に、強化ガラスＧ、Ｇ´の締め付けテストを行ったが、ガラスは破損しなかった。   A tightening test of tempered glass G and G ′ was performed in the same manner as in Examples 1 and 2, but the glass was not damaged.

１５０ｋＮのボルト軸方向の力で締め付けて、強化ガラスＧ、Ｇ´が破損しなかったのは、割れが生じやすい、強化ガラスＧ、Ｇ´の貫通孔の端部４にボルト軸方向の力を直接作用させないようにしたことに加え、強化ガラスＧ、Ｇ´の圧縮部位において、圧縮応力により板ガラスのクラック発生および伝播が抑制され、板ガラスの見掛の強度が増加したことによると思われる。   The reason why the tempered glass G, G ′ was not damaged by tightening with 150 kN in the direction of the bolt axis direction was that the force in the bolt axis direction was applied to the end portion 4 of the through hole of the tempered glass G, G ′. In addition to avoiding direct action, it is considered that cracking and propagation of the plate glass were suppressed by the compressive stress at the compression sites of the tempered glasses G and G ′, and the apparent strength of the plate glass was increased.

比較例Comparative example

座金３に、呼び径、Ｍ１６、厚み４．５ｍｍ、外径、３２ｍｍ、内径、１７ｍｍ、械的性質による等級はＦ３５のものを用いた以外は、実施例２と同様の手順で強化ガラスＧ、Ｇ´の締め付けテストを行った。   A tempered glass G in the same procedure as in Example 2, except that the washer 3 was a nominal diameter, M16, a thickness of 4.5 mm, an outer diameter, 32 mm, an inner diameter, 17 mm, and a mechanical property grade F35. A tightening test of G ′ was performed.

座金３の内周から強化ガラスＧ、Ｇ´の貫通孔の端部４までの距離が、−１．５ｍｍとなり、貫通孔７の端部４と座金３が重なり、割れ等が発生し易く破損の開始点となる懸念の大きい貫通孔７の端部４と座金３が接触し、貫通孔７の端部４にボルト１、ナット２で締め付け他時に生じるボルト軸方向の力が、押圧力として直接作用することになり、強化ガラスＧ、Ｇ´の締め付けテストを行った結果、強化ガラスＧ、Ｇ´が破損した。即ち、ガラスの割れが生じやすい、強化ガラスＧ、Ｇ´の貫通孔７の端部４にボルト軸方向の力が直接作用し強化ガラスＧ、Ｇ´が破損した。   The distance from the inner periphery of the washer 3 to the end 4 of the through hole of the tempered glass G, G ′ is −1.5 mm, the end 4 of the through hole 7 and the washer 3 are overlapped, and breakage is likely to occur. The end 4 of the through hole 7 and the washer 3 that are of great concern as the starting point of the contact are brought into contact with each other, and the bolt 1 and nut 2 are tightened to the end 4 of the through hole 7 at other times, and the force in the bolt axis direction is the pressing force. The tempered glasses G and G ′ were damaged as a result of performing a tightening test of the tempered glasses G and G ′. That is, the tempered glass G, G ′ was damaged by the direct action of the force in the bolt axis direction on the end 4 of the through hole 7 of the tempered glass G, G ′, which is likely to break the glass.

本発明の建築用途の板ガラスの接合構造および接合方法は、ガラス壁、ガラス屋根、大板ガラスを使用した開口部構成よりなるガラススクリーンなどの大型建築物に使用される。   The joining structure and joining method of plate glass for architectural use according to the present invention are used for large buildings such as glass screens composed of glass walls, glass roofs, and openings using large plate glass.

例えば、目立つ金属方立ての代りに、目立たないガラス方立て（リブガラス）を用いて、正面ガラス（フェイスプレート）に加わる風荷重を支持する工法であるガラス・スタビライザー工法によるリブガラススクリーンに使用される。   For example, it is used for a rib glass screen by a glass stabilizer method, which is a method of supporting a wind load applied to a front glass (face plate) by using an inconspicuous glass stand (rib glass) instead of a conspicuous metal stand.

本発明の板ガラスの接合構造および接合方法を用い、ガラス板を接合することで、長いガラス方立て、言い換えれば、長いリブガラスが提供される。   By joining the glass plates using the joining structure and joining method of the plate glass of the present invention, a long glass frame, in other words, a long rib glass is provided.

また、リブガラスに取り付けた接合板をガラススクリーンと接続することも可能であり、ボルトでガラススクリーンと接続できることからリブガラススクリーンの設計の自由度が広がる。   Moreover, it is also possible to connect the joining plate attached to the rib glass to the glass screen, and since the bolt can be connected to the glass screen, the degree of freedom in designing the rib glass screen is expanded.

本発明の板ガラスの接合構造による板ガラスの接合部の一例の拡大側面図である。It is an enlarged side view of an example of the joined part of the plate glass by the joining structure of the plate glass of this invention. 本発明の板ガラスの接合方法により接合した板ガラスの一例の正面図である。It is a front view of an example of the plate glass joined by the plate glass joining method of the present invention. 本実施例における試験片の上面図である。It is a top view of the test piece in a present Example. 本発明の実施例における板ガラスの接合部の拡大側面図である。It is an enlarged side view of the junction part of the plate glass in the Example of this invention.

符号の説明Explanation of symbols

Ｇ、Ｇ´板ガラス（強化ガラス）
１ ボルト
２ ナット
３ 座金（応力発生部材）
４ 孔端部
５ 座金 G, G 'flat glass (tempered glass)
1 Bolt 2 Nut 3 Washer (Stress generating member)
4 Hole end 5 Washer

Claims (11)

貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、貫通孔に挿通させた一対の締め付け部材の締め付けにより生じる力により板ガラス同士を接合した板ガラスの接合部にあって、締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力を、板ガラスと板ガラスとの間に挟んで板ガラスに圧接させた応力発生部材で板ガラスに伝達し、板ガラスに圧縮応力を生じさせて、板ガラス同士を接合したことを特徴とする建築用途の板ガラスの接合構造。   At least two plate glasses each having a through hole are stacked, and the plate glass is bonded to each other by a force generated by tightening a pair of tightening members inserted through the through holes, and is 60 kN or more and 300 kN or less generated by tightening. Is transmitted to the sheet glass by a stress generating member sandwiched between the sheet glass and pressed against the sheet glass, compressive stress is generated on the sheet glass, and the sheet glass is bonded to each other. Bonding structure. 一対の締め付け部材がボルト・ナットであり、貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、板ガラスに形成した貫通孔にボルトを挿通し、ボルトとボルトに螺合させたナットの締め付けにより生じる力であるボルト軸方向の６０ｋＮ以上、３００ｋＮ以下の力を、板ガラスと板ガラスとの間に挟んで板ガラスに圧接させた応力発生部材で板ガラスに伝達し、板ガラスに圧縮応力を生じさせて、板ガラス同士を接合したことを特徴とする請求項１に記載の建築用途の板ガラスの接合構造。   A pair of tightening members are bolts and nuts, and a force generated by tightening at least two plate glasses having through holes, inserting the bolts into the through holes formed in the plate glass, and screwing the bolts to the bolts. The force of 60 kN or more and 300 kN or less in the bolt axis direction is transmitted to the plate glass by a stress generating member sandwiched between the plate glass and the plate glass and pressed against the plate glass, thereby generating a compressive stress on the plate glass. The plate glass bonding structure for architectural use according to claim 1, wherein the plate glass is bonded. 板ガラスと板ガラスとの間に加え、ボルト頭部と板ガラス、およびナットと板ガラスの間にも、応力発生部材を挟んで、ボルト軸方向の６０ｋＮ以上、３００ｋＮ以下の力で締め付けていることを特徴とする請求項２に記載の建築用途の板ガラスの接合構造。 In addition to between plate glass and plate glass, between bolt head and plate glass, and between nut and plate glass, a stress generating member is sandwiched and tightened with a force of 60 kN or more and 300 kN or less in the bolt axial direction. The joining structure of the plate glass of the architectural use of Claim 2 to do. 前記応力発生部材が貫通孔を擁することを特徴とする請求項１乃至請求項３のいずれか１項に記載の建築用途の板ガラスの接合構造。   The said stress generating member has a through-hole, The joining structure of the plate glass of the architectural use of any one of Claim 1 thru | or 3 characterized by the above-mentioned. 前記応力発生部材の貫通孔の直径が、板ガラスに形成した貫通孔の直径よりも大きいことを特徴とする請求項１乃至請求項４のいずれか１項に記載の建築用途の板ガラスの接合構造。   The diameter of the through-hole of the said stress generation member is larger than the diameter of the through-hole formed in plate glass, The joining structure of the plate glass for building uses of any one of Claim 1 thru | or 4 characterized by the above-mentioned. 前記応力発生部材が座金であり、板ガラスの貫通孔に対して同心状に配置したことを特徴とする請求項１乃至請求項５のいずれか１項に記載の建築用途の板ガラスの接合構造。   6. The plate glass bonding structure for architectural use according to claim 1, wherein the stress generating member is a washer and is disposed concentrically with respect to a through hole of the plate glass. 7. ボルトの頭部・ナットの外径よりも応力発生部材の貫通孔の直径を小さくしたことを特徴とする請求項１乃至請求項６のいずれか１項に記載の建築用途の板ガラスの接合構造。   The plate glass bonding structure for architectural use according to any one of claims 1 to 6, wherein the diameter of the through hole of the stress generating member is smaller than the outer diameter of the bolt head and nut. ボルト・ナットが六角ボルト・ナットであり、六角ボルト・ナットの対角距離よりも応力発生部材の貫通孔の直径を小さくしたことを特徴とする請求項１乃至請求項７のいずれか１項に記載の建築用途の板ガラスの接合構造。   The bolt or nut is a hexagon bolt or nut, and the diameter of the through hole of the stress generating member is made smaller than the diagonal distance of the hexagon bolt and nut. Bonding structure of plate glass for architectural use as described. 貫通孔を擁する少なくとも２枚以上の板ガラスを重ね、貫通孔に挿通させた一対の締め付け部材の締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力で、応力発生部材を板ガラス間に挟んで板ガラスに圧接し、板ガラス内部に圧縮応力を生じるように締め付けて、板ガラス同士を接合することを特徴とする建築用途の板ガラスの接合方法。   At least two or more plate glasses holding through holes are stacked, and a pressure generating member is sandwiched between the plate glasses with a force of 60 kN or more and 300 kN or less generated by tightening a pair of fastening members inserted through the through holes, and pressed against the plate glass, A method for joining plate glasses for architectural use, wherein the plate glasses are joined to each other so as to generate a compressive stress inside the plate glass. 一対の締め付け部材がボルト・ナットであり、板ガラスの貫通孔にボルトを挿通し、ボルトとボルトに螺合させたナットの締め付けにより生じる６０ｋＮ以上、３００ｋＮ以下の力で、応力発生部材を板ガラス間に挟んで板ガラスに圧接し、板ガラス内部に圧縮応力を生じるように締め付けて、板ガラス同士を接合することを特徴とする請求項９に記載の建築用途の板ガラスの接合方法。   The pair of tightening members are bolts and nuts. The bolts are inserted into the through holes of the plate glass, and the stress generating member is interposed between the plate glasses with a force of 60 kN or more and 300 kN or less generated by tightening the bolt and the nut screwed to the bolt. The method for joining plate glasses for architectural use according to claim 9, wherein the plate glasses are pressed against each other and clamped so as to generate a compressive stress inside the plate glasses to join the plate glasses together. 複数の貫通孔を前記板ガラスに形成し、貫通孔の各々に挿通したボルトにナットを螺合して、板ガラス同士を応力発生部材で挟んで締め付けることを特徴とする請求項９または請求項１０に記載の建築用途の板ガラスの接合方法。   A plurality of through holes are formed in the plate glass, nuts are screwed into bolts inserted into the through holes, and the plate glasses are clamped by stress generating members. The method of joining sheet glass for architectural use as described.
JP2006204504A 2006-07-27 2006-07-27 Sheet glass joining structure Expired - Fee Related JP4779856B2 (en)

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