JP6667273B2

JP6667273B2 - Mounting structure of tension rod

Info

Publication number: JP6667273B2
Application number: JP2015233658A
Authority: JP
Inventors: 義憲大倉
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2020-03-18
Anticipated expiration: 2035-11-30
Also published as: JP2017101414A

Description

本発明は、木造建築の骨格において、部材同士を引き寄せるテンションロッドの取り付け構造に関する。 The present invention relates to a tension rod mounting structure that draws members together in a skeleton of a wooden building.

テンションロッドは細長い金属棒で、鉄骨構造やプレハブ構造の筋交いとして広く使用されている。このテンションロッドは、圧縮荷重に対しては何らの効力も発揮しないが、引張荷重には強力に抵抗する。そのため、木造建築の骨格内に二本のテンションロッドを「Ｘ」状に配置すると、外力が作用した際、いずれか一本には引張荷重が作用し、骨格の変形が抑制される。このテンションロッドを用いた建築技術の例として、後記特許文献が挙げられる。 Tension rods are elongated metal bars that are widely used as braces for steel and prefabricated structures. This tension rod has no effect on compressive loads, but strongly resists tensile loads. Therefore, when two tension rods are arranged in an “X” shape in the skeleton of a wooden building, when an external force is applied, a tensile load is applied to one of the tension rods, and deformation of the skeleton is suppressed. Patent documents described below are examples of construction techniques using this tension rod.

特許文献１では、倒壊時の粘り強さを増大させた木造建築物の耐震構造が開示されている。この耐震構造は、柱と横架材からなる格子状の骨格を補強するもので、隣接する二本の柱を結ぶ「つなぎ材」を配置したことを特徴とする。つなぎ材は、棒状の長尺金物の両端に当て金を一体化したもので、この当て金を柱の側面に接触させる。さらに当て金は、ボルトで柱に固定するほか、当て金と柱の間には、弾性シートを挟み込む。このように、つなぎ材を用いることで、柱の断面欠損を最小限に留めながら、二本の柱を強固に連結できるほか、長尺金物や弾性シートの変形により、倒壊時の粘り強さが増大する。加えて特許文献１では、テンションロッドを「Ｘ」状に二本配置することも開示されている。 Patent Literature 1 discloses an earthquake-resistant structure of a wooden building with increased toughness when collapsed. This seismic structure reinforces a lattice-like skeleton composed of columns and horizontal members, and is characterized by the arrangement of "tie members" connecting two adjacent columns. The linking material is a rod-shaped long metal piece having a metal plate integrated with both ends thereof, and the metal plate is brought into contact with the side surface of the pillar. Further, the backing plate is fixed to the pillar with bolts, and an elastic sheet is sandwiched between the backing plate and the pillar. In this way, by using the connecting material, the two pillars can be firmly connected while minimizing the cross-sectional loss of the pillars, and the long metal and elastic sheet deformation increase the toughness at the time of collapse I do. In addition, Patent Literature 1 discloses that two tension rods are arranged in an “X” shape.

特許文献２では、住宅の屋根部分を支持するトラス構造が開示されている。このトラス構造は、軽量化や組み立て作業の簡素化を目的とするもので、登り梁・水平梁・登り梁束・斜材などで構成される。そのうち登り梁は、屋根の勾配に沿って斜方向に伸び、また水平梁は、左右の登り梁の下端部同士を結び、登り梁束は、登り梁と水平梁を垂直に結び、斜材は、登り梁と水平梁を斜方向に結ぶ。さらに特許文献２では、個々の構成要素に作用する荷重を調査し、登り梁束と斜材の一部には、圧縮荷重が作用しないことに着目し、これらに丸鋼を切り出したブレース（テンションロッド）を用いたことを特徴とする。ブレースは、鋼材に比べて軽量で、しかもトラス構造への取り付けや張力の調整も容易で、組み立て作業の簡素化も実現する。 Patent Literature 2 discloses a truss structure that supports a roof portion of a house. This truss structure is intended to reduce the weight and simplify the assembling work, and is composed of climbing beams, horizontal beams, climbing beam bundles, diagonal members, and the like. The climbing beam extends diagonally along the roof slope, the horizontal beam connects the lower ends of the left and right climbing beams, the climbing beam bundle connects the climbing beam and the horizontal beam vertically, , Connecting the ascending beam and the horizontal beam diagonally. Further, in Patent Document 2, a load acting on each component is investigated, and attention is paid to the fact that a compressive load does not act on a part of a climbing beam bundle and a diagonal member. (Rod). The brace is lighter than steel, and can be easily attached to the truss structure and adjusted for tension, and simplifies assembly work.

特開２００１−２６９８４号公報JP 2001-26984 A 特開平６−３０６９９１号公報JP-A-6-306991

公共施設や商業施設のほか、倉庫や畜産施設などは、広大な室内空間を確保する必要があるほか、建築コストの削減要求も厳しく、通常、その骨格には鋼材を用いる。しかし近年は、森林資源の有効活用や、塗装（サビ止め）作業の簡素化や、室内環境の改善などの観点から、このような建築物についても、木造化の要望がある。その場合でも、建築コストの削減は重要で、広大な室内空間を確保した上で、部材の使用量や施工時の手間を削減する必要がある。そのため、柱や梁などの部材同士をテンションロッドで引き寄せ、部材に圧縮荷重や曲げモーメントを作用させ、骨格の剛性を高めることが多い。 Public facilities and commercial facilities, as well as warehouses and livestock facilities, need to secure a large amount of indoor space, and demands for reducing construction costs are strict, and steel is usually used for the framework. However, in recent years, there has been a demand for such buildings to be made of wood from the viewpoints of effective use of forest resources, simplification of painting (rustproofing) work, and improvement of indoor environment. Even in such a case, it is important to reduce the construction cost, and it is necessary to secure a vast indoor space and to reduce the amount of members used and the labor required for construction. Therefore, members such as columns and beams are attracted to each other by a tension rod, and a compressive load or a bending moment is applied to the members to increase the rigidity of the skeleton.

このように、部材同士をテンションロッドで引き寄せる場合、仮にテンションロッドが脱落すると、部材の据え付けが不安定になり、建築物の破損を招く恐れがある。したがってテンションロッドは、部材と強固に取り付け、脱落を防ぐ必要がある。またテンションロッドには、常時張力が作用するため、部材との取り付け箇所では、部材が徐々に変形してテンションロッドが緩み、剛性が低下する恐れもある。 In this way, when the members are pulled together by the tension rod, if the tension rod falls off, the installation of the members becomes unstable, and there is a possibility that the building may be damaged. Therefore, the tension rod must be firmly attached to the member to prevent the tension rod from falling off. In addition, since tension is always applied to the tension rod, the member may be gradually deformed at the portion where the tension rod is attached, and the tension rod may be loosened, and the rigidity may be reduced.

本発明はこうした実情を基に開発されたもので、部材からの脱落を防止でき、安全性に優れるほか、荷重による部材の経年変形にも配慮されたテンションロッドの取り付け構造の提供を目的としている。 The present invention has been developed based on such circumstances, and aims to provide a tension rod mounting structure that can prevent falling off from a member, is excellent in safety, and considers aging of the member due to load. .

前記の課題を解決するための請求項１記載の発明は、木造建築の骨格を強化するテンションロッドの取り付け構造であって、前記木造建築の骨格を構成する被強化材の側面には、収軸孔を設け、該収軸孔には、前記テンションロッドの端部を引き留める係留軸を差し込み、前記被強化材と前記係留軸との変位を規制するため、該係留軸の拘束手段を設けてあり、該拘束手段は、前記被強化材の表面に配置する受け板と、該受け板から差し込み且つ前記係留軸に螺合する寄せボルトと、からなり、該寄せボルトは、一本の該係留軸に対して複数本を用いており、且つ複数本の該寄せボルトは直交する二方向に配置してあることを特徴とするテンションロッドの取り付け構造である。 The invention according to claim 1 for solving the above-mentioned problem is a mounting structure of a tension rod for reinforcing a skeleton of a wooden building, wherein a side of a reinforcing material constituting the skeleton of the wooden building has an axle shaft. A hole is provided, and in the shaft receiving hole, a mooring shaft for retaining the end of the tension rod is inserted, and restraining means for the mooring shaft is provided in order to regulate displacement between the reinforced material and the mooring shaft . The restraining means comprises a receiving plate disposed on the surface of the material to be reinforced, and a pulling bolt inserted from the receiving plate and screwed to the mooring shaft, wherein the pulling bolt is one of the mooring shafts. , And a plurality of the shift bolts are arranged in two directions perpendicular to each other.

本発明における木造建築の骨格とは、柱や横架材など、各種棒状の木材を組み上げ、隣接する木材同士を強固に連結したものを想定している。さらに本発明では、骨格を強化するため、木材同士または木材と基礎コンクリートなどをテンションロッドで引き寄せ、緩みや変位を規制する。なおテンションロッドの配置は、様々な形態があり得るため、テンションロッドの一端が取り付けられる部材を便宜上、被強化材と称するものとする。したがって被強化材は、柱である場合もあれば、登り梁である場合もある。そして被強化材は、各種集成材を含む木材である。 The skeleton of the wooden building in the present invention is assumed to be formed by assembling various bar-shaped lumbers such as pillars and horizontal members, and firmly connecting adjacent lumbers. Further, in the present invention, in order to reinforce the skeleton, the woods or the wood and the foundation concrete are drawn by a tension rod to restrict loosening and displacement. Since the tension rod may be arranged in various forms, a member to which one end of the tension rod is attached is referred to as a material to be strengthened for convenience. Thus, the reinforcement may be a pillar or a climbing beam. The material to be reinforced is wood including various laminated materials.

係留軸は、テンションロッドの端部を引き留める円断面の金属棒で、被強化材に設けた収軸孔に差し込む。なお、係留軸とテンションロッドの取り付け方法は、自在に選択可能で、具体例としては、係留軸の外周面を貫く孔を設け、この孔にテンションロッドの端部を差し込み、さらにテンションロッドの端部にナットを螺合し、抜け止めとする形態が挙げられる。他にも、係留軸の外周面を貫くメネジを形成し、これにテンションロッドの端部を螺合させる形態や、係留軸の端部にクレビスを組み込み、このクレビスを介してテンションロッドを取り付ける形態など、様々である。 The mooring shaft is a metal rod having a circular cross section that holds the end of the tension rod, and is inserted into a shaft receiving hole provided in the material to be reinforced. In addition, the attachment method of the mooring shaft and the tension rod can be freely selected. As a specific example, a hole penetrating the outer peripheral surface of the mooring shaft is provided, the end of the tension rod is inserted into this hole, and the end of the tension rod is further inserted. There is a form in which a nut is screwed into the portion to prevent the nut from coming off. In addition, a female thread is formed through the outer peripheral surface of the mooring shaft, and the end of the tension rod is screwed into the female screw, or a clevis is incorporated into the end of the mooring shaft, and the tension rod is attached via the clevis. And so on.

収軸孔は、係留軸を緩みなく収容可能な内径とする。これは、係留軸と収軸孔を面接触させることを目的としており、テンションロッドに作用する張力が被強化材に伝達する際の応力集中を回避できる。なお収軸孔を設ける位置は、被強化材のどの部位でも構わないが、通常は端部付近となる。ただしヒビ割れなどを避けるため、端面からは所定の距離を確保する。 The shaft receiving hole has an inner diameter capable of accommodating the mooring shaft without loosening. This aims at bringing the mooring shaft and the shaft receiving hole into surface contact, and can avoid concentration of stress when the tension acting on the tension rod is transmitted to the material to be reinforced. Note that the position of the shaft hole may be any part of the material to be reinforced, but is usually near the end. However, in order to avoid cracks, a predetermined distance is secured from the end face.

テンションロッドは、一本の被強化材について、左右両側に計二本以上配置する場合もあれば、被強化材の側面中央に一本だけ配置する場合もある。仮にテンションロッドを左右両側に配置する場合、係留軸は、被強化材の横幅（収軸孔の全長）よりも長尺とし、係留軸の両端部を被強化材から突出させる。また、テンションロッドを一本だけ配置する場合、係留軸は、被強化材の横幅と同等の長さで構わないが、テンションロッドを係留軸に到達させるため、被強化材の側面から収軸孔に向けて連絡孔を設ける。 The tension rods may be arranged in total of two or more on each of the left and right sides of one material to be reinforced, or only one at the center of the side surface of the material to be reinforced. If the tension rods are arranged on both left and right sides, the mooring shaft is longer than the lateral width of the material to be reinforced (the entire length of the shaft receiving hole), and both ends of the mooring shaft are projected from the material to be reinforced. When only one tension rod is provided, the mooring shaft may have the same length as the lateral width of the material to be reinforced. A communication hole is provided toward.

拘束手段は、係留軸と被強化材の変位を規制し、係留軸に作用する荷重を受け止め、収軸孔の内周面に作用する応力を緩和する役割を担う。なおこの応力を緩和するには、単純に係留軸の外径を大きくすればよい。ただしその場合、被強化材の断面欠損も増大し、強度上好ましくない。そこで係留軸の外径は必要最小限としながらも、拘束手段を用いて係留軸の変位を規制し、収軸孔の内周面に作用する応力を緩和する。 The restraining means regulates the displacement of the mooring shaft and the material to be reinforced, receives the load acting on the mooring shaft, and plays a role of relaxing the stress acting on the inner peripheral surface of the shaft receiving hole. To relieve this stress, the outer diameter of the mooring shaft may be simply increased. However, in that case, the cross-sectional defect of the material to be reinforced increases, which is not preferable in terms of strength. Therefore, while keeping the outer diameter of the mooring shaft to the minimum necessary, the displacement of the mooring shaft is regulated by using the restraining means, and the stress acting on the inner peripheral surface of the shaft receiving hole is reduced.

このように、係留軸を介してテンションロッドを被強化材に取り付けることで、テンションロッドに作用する張力は、被強化材の収軸孔の内周面で受け止められる。係留軸は、その構造上、被強化材から脱落することが難しく、必然的にテンションロッドの脱落も防止できる。また、係留軸の変位を規制する拘束手段を用いることで、収軸孔の内周面の応力が緩和され、より過大な張力にも対応できるほか、経年による内周面の陥没も防止できる。 Thus, by attaching the tension rod to the material to be reinforced via the mooring shaft, the tension acting on the tension rod is received by the inner peripheral surface of the shaft hole of the material to be reinforced. It is difficult for the mooring shaft to fall off from the material to be reinforced due to its structure, and it is possible to inevitably prevent the tension rod from falling off. In addition, by using the restraining means for restricting the displacement of the mooring shaft, the stress on the inner peripheral surface of the shaft receiving hole is reduced, so that it is possible to cope with an excessive tension and to prevent the inner peripheral surface from being depressed due to aging.

拘束手段については、被強化材の表面に配置する受け板と、受け板から差し込み且つ係留軸に螺合する寄せボルトと、からなり、寄せボルトは、一本の係留軸に対して複数本を用いており、且つ複数本の寄せボルトは直交する二方向に配置してある。受け板は、被強化材の表面に接触させる金属板で、テンションロッドに作用する張力の一部を受け止める役割を担う。そのため受け板は、係留軸を挟み、テンションロッドの反対側に配置する。また受け板は、被強化材の端面と側面など、複数を異なる面に配置することになる。 The restraining means includes a receiving plate disposed on the surface of the material to be reinforced, and a pulling bolt inserted from the receiving plate and screwed to the mooring shaft, and a plurality of pulling bolts are provided for one mooring shaft. The plural bolts are used and arranged in two orthogonal directions . The receiving plate is a metal plate that comes into contact with the surface of the material to be reinforced, and has a role of receiving a part of the tension acting on the tension rod. Therefore, the receiving plate is disposed on the opposite side of the tension rod with the mooring shaft interposed therebetween. In addition , a plurality of receiving plates are arranged on different surfaces such as an end surface and a side surface of the material to be reinforced.

寄せボルトは、受け板と係留軸を結び、荷重を伝達する役割を担い、受け板から係留軸の外周面に向けて差し込み、係留軸を受け板に引き寄せる。そのため係留軸の外周面には、寄せボルトを螺合できるよう、メネジを形成する。また、寄せボルトの軸部を差し込むため、被強化材には、あらかじめ収軸孔に到達する接続孔を設ける。このように、受け板と係留軸を寄せボルトで結ぶことで、テンションロッドに作用する張力の一部は、受け板で受け止められ、収軸孔の内周面に作用する応力を緩和できる。 The shift bolt connects the receiving plate and the mooring shaft and plays a role of transmitting a load, is inserted from the receiving plate toward the outer peripheral surface of the mooring shaft, and draws the mooring shaft to the receiving plate. Therefore, a female screw is formed on the outer peripheral surface of the mooring shaft so that the shift bolt can be screwed into the mooring shaft. Further, in order to insert the shaft portion of the shift bolt, a connection hole which reaches the shaft receiving hole is provided in advance in the material to be reinforced. As described above, by connecting the receiving plate and the mooring shaft with the shift bolt, a part of the tension acting on the tension rod is received by the receiving plate, and the stress acting on the inner peripheral surface of the shaft receiving hole can be reduced.

請求項１記載の発明のように、被強化材の側面に収軸孔を設け、そこに係留軸を差し込み、この係留軸を介してテンションロッドを被強化材に取り付けることで、テンションロッドに作用する張力は、被強化材の収軸孔の内周面で受け止められる。係留軸は、その構造上、被強化材から脱落することが難しく、必然的にテンションロッドの脱落も防止でき、安全性に優れる。また、係留軸の変位を規制する拘束手段を用いることで、収軸孔の内周面の応力が緩和され、より過大な張力にも対応できるほか、経年による内周面の陥没（変形）を招くこともなく、係留軸の変位によるテンションロッドの緩みも生じない。 As described in the first aspect of the present invention, an axial hole is provided in the side surface of the material to be reinforced, a mooring shaft is inserted into the hole, and the tension rod is attached to the material to be reinforced via the mooring shaft. The applied tension is received by the inner peripheral surface of the shaft hole of the material to be reinforced. Due to its structure, the mooring shaft is difficult to fall off from the material to be reinforced, so that the tension rod can inevitably fall off, and is excellent in safety. In addition, by using the restraining means that regulates the displacement of the mooring shaft, the stress on the inner peripheral surface of the shaft receiving hole is reduced, and it is possible to cope with excessive tension, and the inner peripheral surface is depressed (deformed) due to aging. Without inviting, the tension rod is not loosened due to the displacement of the mooring shaft.

係留軸の変位を規制する拘束手段については、受け板と寄せボルトを用い、係留軸を受け板に引き寄せることで、受け板にも荷重が伝達され、収軸孔の内周面に作用する応力が緩和される。そのため、収軸孔の変形による係留軸の変位が規制され、経年によるテンションロッドの緩みを防止できる。この発明は、構成が単純でコスト面に優れる。また受け板は単純な形状で、その面積を変えることで、強度を自在に調整できる。さらに受け板は、他の部材との連結などに利用することもできる。 With regard to the restraining means for restricting the displacement of the mooring shaft, the load is transmitted to the receiving plate by pulling the mooring shaft to the receiving plate by using the receiving plate and the shift bolt. Is alleviated. Therefore, the displacement of the mooring shaft due to the deformation of the shaft receiving hole is restricted, and the tension rod can be prevented from loosening due to aging. The present invention has a simple configuration and is excellent in cost. The receiving plate has a simple shape, and its strength can be freely adjusted by changing its area. Furthermore, the receiving plate can be used for connection with other members.

本発明によるテンションロッドの取り付け構造の具体例を示す斜視図で、登り梁の下端部にテンションロッドを取り付けることを想定しており、ここでは登り梁が被強化材となる。FIG. 4 is a perspective view showing a specific example of a tension rod mounting structure according to the present invention, in which a tension rod is mounted on a lower end portion of a climbing beam, where the climbing beam is a material to be reinforced. 図１の被強化材を柱に据え付け、且つ被強化材にテンションロッドを取り付けた状態を示す斜視図で、図の左上には、据え付けの途中段階を描いてある。FIG. 2 is a perspective view showing a state in which the material to be reinforced shown in FIG. 1 is installed on a pillar and a tension rod is attached to the material to be reinforced, and an intermediate stage of the installation is illustrated in the upper left of the figure. 図１の被強化材などを用い、木造建築の骨格を組み上げた状態を示す斜視図で、図の上方には、合掌形状に組み上げた被強化材を描いてあり、図の下方には、これを用いた木造建築の骨格を描いてある。FIG. 3 is a perspective view showing a state where a skeleton of a wooden building is assembled by using the reinforcement material of FIG. 1, and the reinforcement material assembled in a joint palm shape is drawn at the upper part of the figure; It depicts the skeleton of a wooden building using. 図１と同様、登り梁の下端部にテンションロッドを取り付ける形態を示す斜視図だが、テンションロッドは一本だけになるほか、拘束手段として、受け板と寄せボルトを用いている。1 is a perspective view showing a form in which a tension rod is attached to a lower end portion of a climbing beam as in FIG. 1. However, only one tension rod is used, and a receiving plate and a shift bolt are used as restraining means. 図４の被強化材を柱に据え付け、且つ被強化材にテンションロッドを取り付けた状態を示す斜視図で、図の左上には、被強化材の縦断面を描いてある。FIG. 5 is a perspective view showing a state in which the material to be reinforced shown in FIG. 4 is installed on a pillar and a tension rod is attached to the material to be reinforced, and a vertical cross section of the material to be reinforced is shown in the upper left of the figure. 水平に伸びる横架材を被強化材とし、この端部を柱に据え付けるほか、テンションロッドの上端部を被強化材に取り付ける構成を示す斜視図で、拘束手段として、被強化材を跨ぐ冠体を用いている。A perspective view showing a structure in which a horizontally extending horizontal member is used as a material to be reinforced, and this end is installed on a pillar, and the upper end of a tension rod is attached to the material to be reinforced. Is used. 図６の被強化材を柱に据え付け、且つ被強化材にテンションロッドを取り付けた状態を示す斜視図で、図の左上には、据え付けの途中段階を描いてある。FIG. 7 is a perspective view showing a state in which the material to be reinforced shown in FIG. 6 is installed on a pillar and a tension rod is attached to the material to be reinforced, and a middle stage of the installation is shown in the upper left of the figure. 横架材を被強化材とし、この端部を柱に据え付ける構成を示す斜視図で、拘束手段として、寄せボルトと二枚の受け板を用いるほか、クレビスを介してテンションロッドを取り付けている。FIG. 9 is a perspective view showing a configuration in which a horizontal member is a material to be reinforced and this end is installed on a pillar. In addition to using an approach bolt and two receiving plates as restraining means, a tension rod is attached via a clevis. 図８の被強化材を柱に据え付け、且つ被強化材にテンションロッドを取り付けた状態を示す斜視図で、図の左上には、据え付けの途中段階を描いてある。FIG. 9 is a perspective view showing a state in which the material to be reinforced shown in FIG. 8 is installed on a pillar and a tension rod is attached to the material to be reinforced, and a middle stage of the installation is shown in the upper left of the figure. 直立する柱を被強化材とするほか、拘束手段として冠体を用いる構成を示す斜視図で、係留軸には、計四本のテンションロッドを取り付け、さらに被強化材の上部側面には、対向するように二本の桁材を連結する。In addition to using the upright pillar as the material to be reinforced, a perspective view showing a configuration using a crown as a restraining means, a total of four tension rods are attached to the mooring shaft, and the upper side surface of the material to be reinforced is opposed to To join the two girder members. 図１０の桁材を被強化材に据え付け、且つ被強化材に計四本のテンションロッドを取り付けた状態を示す斜視図で、図の左上には、被強化材に冠体と係留軸と金具を組み込んだ途中段階を描いてある。FIG. 11 is a perspective view showing a state in which the girder material of FIG. 10 is installed on the material to be reinforced and a total of four tension rods are attached to the material to be reinforced, and a crown, a mooring shaft, and a metal fitting are provided on the material to be reinforced. The middle stage that incorporates is drawn. これまでの各図に描いた構成を用い、枠組を強化する方法の一例を示す斜視図である。It is a perspective view which shows an example of the method of strengthening a framework using the structure drawn so far in each figure. 拘束手段として受け板と寄せボルトを用い、クレビスを介してテンションロッドを取り付けるほか、柱の上面に被強化材と桁材を十字状に連結する構成を示す斜視図である。It is a perspective view which shows the structure which attaches a tension rod via a clevis using a receiving plate and a shift bolt as a restraining means, and connects a to-be-reinforced material and a girder member to the upper surface of a pillar in a cross shape. 図１３の各要素を組み上げる途中段階を示す斜視図で、図の左上には、被強化材に係留軸や境界板などを取り付けた状態を描いてあり、図の右下には、被強化材に中心材と金具を取り付けた状態を描いてある。FIG. 13 is a perspective view showing an intermediate stage of assembling each element of FIG. 13, in which a state in which a mooring shaft and a boundary plate are attached to a material to be reinforced is illustrated at the upper left of the figure, and The figure shows the state where the center material and the metal fittings are attached. 図１３の中心材と被強化材と桁材を柱に据え付けた状態を示す斜視図で、一本の被強化材と三本の桁材は、中心材の側面に引き寄せられ、真上から見て十字状に並ぶ。FIG. 14 is a perspective view showing a state in which the center member, the reinforcement member, and the girder member of FIG. 13 are mounted on a pillar. One reinforcement member and three girder members are drawn to the side surface of the center member and viewed from directly above. Lined up in a cross.

図１は、本発明によるテンションロッド４１の取り付け構造の具体例を示し、登り梁の下端部にテンションロッド４１を取り付けることを想定しており、ここでは登り梁が被強化材５１となる。登り梁は、木造建築の屋根の骨格となる木材で、屋根の勾配に沿って斜方向に配置され、さらにその傾きを維持できるよう、下端部にテンションロッド４１を取り付け、内側に引き寄せる。なおテンションロッド４１は、被強化材５１の左右両側に計二本配置し、それぞれの端部を係留軸１１で引き留める。 FIG. 1 shows a specific example of a mounting structure of a tension rod 41 according to the present invention, and it is assumed that the tension rod 41 is mounted on a lower end portion of a climbing beam. The climbing beam is made of wood, which is the skeleton of the roof of the wooden building. The climbing beam is arranged obliquely along the slope of the roof, and a tension rod 41 is attached to the lower end so as to maintain the inclination, and is drawn inward. In addition, two tension rods 41 are arranged on both the left and right sides of the material 51 to be reinforced, and the respective ends are retained by the mooring shaft 11.

係留軸１１は、円断面の金属棒で、被強化材５１の両側面を貫くように差し込む。なお係留軸１１は、被強化材５１の横幅よりも長く、係留軸１１の両端部は、被強化材５１の側面から突出する。また係留軸１１を差し込むため、被強化材５１には、両側面を貫く収軸孔５５を加工してある。収軸孔５５は、係留軸１１を隙間なく差し込み可能な内径に仕上げてある。そのほか、テンションロッド４１を差し込むため、係留軸１１の両端部には、外周面を貫く通し孔１６を形成してある。 The mooring shaft 11 is a metal rod having a circular cross section, and is inserted so as to penetrate both side surfaces of the reinforced material 51. Note that the mooring shaft 11 is longer than the lateral width of the material 51 to be reinforced, and both ends of the mooring shaft 11 project from the side surface of the material 51 to be reinforced. Further, in order to insert the mooring shaft 11, a shaft receiving hole 55 penetrating both sides is formed in the material 51 to be reinforced. The shaft receiving hole 55 is finished to an inner diameter that allows the mooring shaft 11 to be inserted without any gap. In addition, through holes 16 are formed at both ends of the mooring shaft 11 for inserting the tension rod 41 therethrough.

被強化材５１の傾きを維持するテンションロッド４１は、二本とも水平方向に伸び、さらにテンションロッド４１の端部には、オネジ４２を形成してある。そのためテンションロッド４１の端部を係留軸１１の通し孔１６に差し込み、通し孔１６から飛び出した端部に終端ナット４４を螺合すると、テンションロッド４１が係留軸１１に取り付けられる。なお終端ナット４４の緩みを防ぐため、終端ナット４４を二個重ねるといった対策を講じることもある。 The two tension rods 41 for maintaining the inclination of the material to be reinforced 51 extend in the horizontal direction, and a male screw 42 is formed at an end of the tension rod 41. Therefore, when the end of the tension rod 41 is inserted into the through hole 16 of the mooring shaft 11 and the terminal nut 44 is screwed into the end protruding from the through hole 16, the tension rod 41 is attached to the mooring shaft 11. In order to prevent the terminal nut 44 from loosening, a measure such as stacking two terminal nuts 44 may be taken.

テンションロッド４１から係留軸１１に伝達する荷重は、収軸孔５５の内周面で受け止められるが、その面積は有限で応力が過大になり、時間の経過につれ、内周面に陥没やヒビ割れが生じる恐れがある。そこで係留軸１１の変位を規制する拘束手段として、補強リング２１を用い、収軸孔５５の内周面に作用する応力を緩和している。補強リング２１は、円筒管を切り出したような形状で、その内周面は、係留軸１１を隙間なく嵌め込み可能な内径としてあり、係留軸１１に作用した荷重を受け止める。 The load transmitted from the tension rod 41 to the mooring shaft 11 is received by the inner peripheral surface of the shaft receiving hole 55, but its area is finite and the stress becomes excessively large. As time passes, the inner peripheral surface sinks or cracks. May occur. Therefore, as a restraining means for restricting the displacement of the mooring shaft 11, the reinforcing ring 21 is used to reduce the stress acting on the inner peripheral surface of the shaft receiving hole 55. The reinforcing ring 21 has a shape obtained by cutting out a cylindrical tube, and its inner peripheral surface has an inner diameter that allows the mooring shaft 11 to be fitted without a gap, and receives a load applied to the mooring shaft 11.

補強リング２１を埋め込むため、被強化材５１の側面には、収軸孔５５と同心で環状溝５６を加工してある。環状溝５６は、補強リング２１を圧入可能な内径とするほか、補強リング２１全体を収容可能な深さを確保してある。したがって補強リング２１は、完全に被強化材５１に埋め込まれ、テンションロッド４１に作用する張力の一部は、補強リング２１を介して環状溝５６の内周面に伝達される。 In order to embed the reinforcing ring 21, an annular groove 56 is formed on the side surface of the reinforced material 51 so as to be concentric with the shaft hole 55. The annular groove 56 has an inner diameter capable of press-fitting the reinforcing ring 21 and also has a depth capable of accommodating the entire reinforcing ring 21. Therefore, the reinforcing ring 21 is completely embedded in the reinforced material 51, and a part of the tension acting on the tension rod 41 is transmitted to the inner peripheral surface of the annular groove 56 via the reinforcing ring 21.

環状溝５６は、必然的に収軸孔５５よりも大径となり、その内周面の面積も増大するため、応力の緩和が実現する。さらに補強リング２１の外径や長さを調整することで、様々な荷重条件に対応できる。このように補強リング２１を用いることで、収軸孔５５の内径を必要最小限に抑制可能で、被強化材５１の断面欠損も抑制される。また環状溝５６は、その深さが限られるため、断面欠損も限定的となり、しかも加工が容易である。なお補強リング２１は、左右二箇所に配置するため、環状溝５６は、被強化材５１の両側面に加工する。 The annular groove 56 necessarily has a larger diameter than the shaft hole 55, and the area of the inner peripheral surface increases, so that the stress can be relaxed. Further, by adjusting the outer diameter and length of the reinforcing ring 21, it is possible to cope with various load conditions. By using the reinforcing ring 21 as described above, the inner diameter of the shaft receiving hole 55 can be suppressed to a necessary minimum, and the sectional loss of the material 51 to be reinforced is also suppressed. In addition, since the annular groove 56 has a limited depth, cross-sectional defects are limited, and processing is easy. Since the reinforcing rings 21 are arranged at two positions on the left and right, the annular grooves 56 are formed on both side surfaces of the material 51 to be reinforced.

丸板３１は、被強化材５１の側面に取り付ける金属板で、その中心に係留軸１１を差し込み、補強リング２１の抜け止めとして機能する。また、丸板３１を被強化材５１に取り付けるため、ネジ釘３２を用いる。ネジ釘３２は、被強化材５１の内部に突き刺さり、ヒビ割れを防ぐ役割も担う。そのためネジ釘３２の本数を意図的に増やし、さらにネジ釘３２の延長を伸ばすこともある。なお丸板３１についても、被強化材５１の両側面に取り付ける。 The round plate 31 is a metal plate attached to the side surface of the material 51 to be reinforced, and the mooring shaft 11 is inserted into the center of the metal plate to function as a stopper for the reinforcing ring 21. In addition, a screw nail 32 is used to attach the round plate 31 to the material 51 to be reinforced. The screw nail 32 pierces the inside of the reinforced material 51 and also plays a role of preventing cracks. Therefore, the number of the screw nails 32 may be intentionally increased, and the screw nails 32 may be further extended. The round plate 31 is also attached to both sides of the material 51 to be reinforced.

被強化材５１（登り梁）を架空に設置するため、その下端部は、柱６１で受け止める。そのため被強化材５１の下面端部には、柱６１の上面に載る水平面５８を加工してある。当然ながら水平面５８は、被強化材５１の据え付け角度に基づいて加工してある。また柱６１と被強化材５１を連結するため、ホゾシャフト７１を用いる。ホゾシャフト７１は、円柱状の金属棒で、柱６１と被強化材５１の双方に加工したホゾ穴６４、７４を貫くように差し込む。なおホゾ穴６４、７４は、ホゾシャフト７１を緩みなく差し込める内径である。 In order to install the reinforced material 51 (uphill beam) imaginarily, its lower end is received by a pillar 61. Therefore, a horizontal surface 58 on the upper surface of the column 61 is machined at the lower end of the material 51 to be reinforced. Naturally, the horizontal plane 58 is machined based on the installation angle of the material 51 to be reinforced. In addition, a tenon shaft 71 is used to connect the column 61 and the material 51 to be reinforced. The tenon shaft 71 is a cylindrical metal rod and is inserted into the tenon holes 64 and 74 formed in both the column 61 and the material 51 to be reinforced. The mortise holes 64 and 74 have an inner diameter into which the tenon shaft 71 can be inserted without looseness.

ホゾシャフト７１をホゾ穴６４、７４に差し込んだ後、柱６１と被強化材５１の双方の側面から、ホゾシャフト７１に向けてドリフトピン６８を打ち込むと、ホゾシャフト７１を介して柱６１と被強化材５１が連結される。なおドリフトピン６８を差し込むため、ホゾシャフト７１の外周面には、ピン孔７８を形成してあるほか、柱６１と被強化材５１の側面には、ホゾ穴６４、７４と交差する横穴６５、７５を加工してある。横穴６５、７５とピン孔７８は、施工時に同心に揃うよう配慮してある。 After the tenon shaft 71 is inserted into the tenon holes 64 and 74, the drift pin 68 is driven toward the tenon shaft 71 from both sides of the column 61 and the reinforcing member 51. Are linked. In order to insert the drift pin 68, a pin hole 78 is formed on the outer peripheral surface of the tenon shaft 71, and lateral holes 65, 75 intersecting with the tenon holes 64, 74 are formed on the side surfaces of the column 61 and the reinforcing member 51. Has been processed. The horizontal holes 65 and 75 and the pin holes 78 are designed to be concentric with each other during construction.

図２は、図１の被強化材５１を柱６１に据え付け、且つ被強化材５１にテンションロッド４１を取り付けた状態を示すが、図の左上には、据え付けの途中段階を描いてある。被強化材５１の収軸孔５５に係留軸１１を差し込むと共に、環状溝５６に補強リング２１を嵌め込み、さらにネジ釘３２で丸板３１を取り付けると、図２の左上に描くように、被強化材５１の側面から係留軸１１の端部が突出する。この突出した部分には、通し孔１６が現れており、そこにテンションロッド４１を差し込む。また被強化材５１のホゾ穴７４には、ホゾシャフト７１を差し込み、ピン孔７８と横穴７５を同心に揃えた後、横穴７５からピン孔７８に向けてドリフトピン６８を打ち込み、ホゾシャフト７１を被強化材５１と一体化する。 FIG. 2 shows a state in which the reinforcement member 51 of FIG. 1 is installed on a pillar 61 and a tension rod 41 is attached to the reinforcement member 51. The upper left part of the drawing shows a stage in the middle of the installation. When the mooring shaft 11 is inserted into the shaft receiving hole 55 of the material 51 to be reinforced, the reinforcing ring 21 is fitted into the annular groove 56, and the round plate 31 is attached with the screw nail 32, the material to be reinforced is drawn as shown in the upper left of FIG. An end of the mooring shaft 11 protrudes from the side surface of the member 51. A through hole 16 appears in this protruding portion, into which the tension rod 41 is inserted. The tenon shaft 74 is inserted into the tenon hole 74 of the material 51 to be reinforced, and the pin hole 78 and the lateral hole 75 are concentrically aligned. Then, the drift pin 68 is driven from the lateral hole 75 toward the pin hole 78 to strengthen the tenon shaft 71. Integrated with the material 51.

被強化材５１にホゾシャフト７１を一体化した後、被強化材５１を吊り上げ、下方に突出するホゾシャフト７１を柱６１のホゾ穴６４に差し込み、さらに被強化材５１の水平面５８を柱６１の上面に載せると、被強化材５１が柱６１に仮置きされる。その後、柱６１の横穴６５にドリフトピン６８を打ち込むと、ホゾシャフト７１を介して柱６１と被強化材５１が連結される。そして、係留軸１１の通し孔１６にテンションロッド４１の端部を差し込み、通し孔１６から飛び出したオネジ４２に終端ナット４４を螺合させると、テンションロッド４１の取り付けが完了する。 After integrating the tenon shaft 71 with the to-be-reinforced material 51, the to-be-reinforced material 51 is lifted, the tenon shaft 71 protruding downward is inserted into the tenon hole 64 of the column 61, and the horizontal plane 58 of the to-be-reinforced material 51 is placed on the upper surface of the column 61 When placed, the reinforcing material 51 is temporarily placed on the pillar 61. After that, when the drift pin 68 is driven into the lateral hole 65 of the column 61, the column 61 and the material 51 to be reinforced are connected via the tenon shaft 71. Then, when the end of the tension rod 41 is inserted into the through hole 16 of the mooring shaft 11 and the terminal nut 44 is screwed into the male screw 42 protruding from the through hole 16, the attachment of the tension rod 41 is completed.

このように、係留軸１１を介し、テンションロッド４１の端部を被強化材５１に取り付けることで、テンションロッド４１に作用する張力は、収軸孔５５および環状溝５６の双方の内周面で受け止められ、荷重の伝達箇所の面積が増大する。そのため、これらの内周面に作用する応力が緩和され、経年による係留軸１１の変位や、周辺のヒビ割れが抑制され、テンションロッド４１の脱落や緩みを防ぐことができる。 By attaching the end of the tension rod 41 to the material 51 to be reinforced via the mooring shaft 11 in this manner, the tension acting on the tension rod 41 is reduced by the inner peripheral surfaces of both the shaft receiving hole 55 and the annular groove 56. As a result, the area of the load transmission point increases. Therefore, the stress acting on these inner peripheral surfaces is relieved, displacement of the mooring shaft 11 due to aging and cracks in the periphery are suppressed, and the tension rod 41 can be prevented from dropping or loosening.

図３は、図１の被強化材５１などを用い、木造建築の骨格を組み上げた状態を示す。この骨格は、屋根を構成する被強化材５１（登り梁）を柱６１で支えたもので、また被強化材５１は、二本を合掌形状（中央が凸）に組み上げ、双方の下端部をテンションロッド４１で引き寄せ、所定の傾斜を維持する。そのため、被強化材５１の下端部に係留軸１１を差し込み、そこにテンションロッド４１の端部を取り付ける。さらに、合掌形状となった二本の被強化材５１の中央には、ターンバックル４８を配置し、両側から伸びるテンションロッド４１を接続する。そしてターンバックル４８を回転させ、テンションロッド４１に張力を与えると、二本の被強化材５１の下端部同士が引き寄せられる。なおテンションロッド４１は、被強化材５１の左右両側に配置するため、二列が平行に並ぶ。 FIG. 3 shows a state in which a skeleton of a wooden building is assembled using the reinforcing material 51 of FIG. 1 and the like. In this skeleton, a reinforced member 51 (uphill beam) constituting a roof is supported by a column 61, and two reinforced members 51 are assembled into a jointed shape (the center is convex), and the lower ends of both members are formed. It is pulled by the tension rod 41 to maintain a predetermined inclination. Therefore, the mooring shaft 11 is inserted into the lower end of the material 51 to be reinforced, and the end of the tension rod 41 is attached thereto. Further, a turnbuckle 48 is disposed at the center of the two reinforcement members 51 in the form of a joint, and tension rods 41 extending from both sides are connected. When the turnbuckle 48 is rotated to apply tension to the tension rod 41, the lower ends of the two reinforcing members 51 are pulled together. Since the tension rods 41 are arranged on both left and right sides of the material 51 to be reinforced, two rows are arranged in parallel.

図３上方に描くように、二本の被強化材５１を合掌形状に組み上げ、その下部にテンションロッド４１を取り付けた後、被強化材５１に下向きの荷重が作用すると、テンションロッド４１がこれに対抗し、被強化材５１の倒伏を防ぐ。またテンションロッド４１の張力を増大させると、被強化材５１がアーチ状に変形し、剛性が一段と向上する。このように、図３上方に描く二本の被強化材５１は、単独でも高い剛性を有し、その両端を支持するだけで架空に据え付けることができる。そのため、被強化材５１の下端部には、あらかじめホゾシャフト７１を組み込み、現地での施工作業を簡素化することもできる。なお二本の被強化材５１が接触する頂上部は、各種従来技術で双方を連結する。 As illustrated in the upper part of FIG. 3, the two reinforcing members 51 are assembled into a joint shape, and a tension rod 41 is attached to a lower portion thereof. When a downward load is applied to the reinforcing member 51, the tension rod 41 It counteracts and prevents the material to be reinforced 51 from falling down. When the tension of the tension rod 41 is increased, the material to be reinforced 51 is deformed in an arch shape, and the rigidity is further improved. As described above, the two reinforcing members 51 depicted in the upper part of FIG. 3 have high rigidity even when used alone, and can be installed imaginarily only by supporting both ends thereof. For this reason, the tenon shaft 71 is incorporated in the lower end portion of the material 51 to be reinforced in advance, so that construction work on site can be simplified. In addition, the top part which two reinforcement | strengthening materials 51 contact is connecting both by various conventional techniques.

施工時は、図３上方に描くように、あらかじめ二本の被強化材５１を合掌形状に組み上げる。また所定の位置に柱６１を直立させ、その後、組み上がった被強化材５１を吊り上げ、対向する柱６１の間に配置する。次に、柱６１の側面から内部のホゾシャフト７１に向けてドリフトピン６８を打ち込むと、図３下方に描くように、被強化材５１（登り梁）が架空に据え付けられる。なお、骨格全体の強度を確保するため、奥行き方向に隣接する柱６１や被強化材５１は、棟木４９や桁材６２で連結する。 At the time of construction, as shown in the upper part of FIG. 3, two reinforcement members 51 are assembled in advance into a joint shape. Further, the column 61 is erected at a predetermined position, and then the reinforced material 51 assembled is lifted up and arranged between the opposing columns 61. Next, when the drift pin 68 is driven from the side surface of the column 61 toward the internal tenon shaft 71, the material 51 (uphill beam) is imaginarily installed as shown in the lower part of FIG. In addition, in order to secure the strength of the whole skeleton, the pillar 61 and the reinforcement member 51 adjacent in the depth direction are connected by a purlin 49 and a girder member 62.

図４は、図１と同様、登り梁の下端部にテンションロッド４１を取り付ける形態を示すが、テンションロッド４１は一本だけになるほか、拘束手段として、受け板２３と寄せボルト３３を用いている。図４においても、登り梁が被強化材５１となるが、テンションロッド４１は、被強化材５１の下方中央に一本だけ配置する。また係留軸１２についても、先の図１と同様、被強化材５１の側面に加工した収軸孔５５に差し込むが、その両端部を収軸孔５５から突出させる必要はなく、係留軸１２の長さは、被強化材５１の横幅と同等としてある。 FIG. 4 shows a form in which a tension rod 41 is attached to the lower end of the climbing beam, as in FIG. 1. However, only one tension rod 41 is used, and the receiving plate 23 and the shift bolt 33 are used as restraining means. I have. Also in FIG. 4, the climbing beam serves as the material 51 to be reinforced, but only one tension rod 41 is arranged at the lower center of the material 51 to be reinforced. Also, the mooring shaft 12 is inserted into the shaft receiving hole 55 formed on the side surface of the material 51 to be reinforced, as in FIG. 1, but it is not necessary to project both ends of the mooring shaft 12 from the shaft receiving hole 55. The length is equal to the width of the material 51 to be reinforced.

テンションロッド４１を係留軸１２に取り付けるため、係留軸１２の中央には、外周面を貫くようにメネジ１７を形成してあり、これにテンションロッド４１のオネジ４２を螺合させる。さらに、テンションロッド４１を係留軸１２に到達させるため、被強化材５１の下斜面と収軸孔５５の間には、連絡孔５９を加工してある。連絡孔５９は、被強化材５１を所定の傾斜で据え付けた際、水平に伸びるよう調整してある。そのほか作図は省略するが、テンションロッド４１の緩みを防ぐため、オネジ４２にナットを螺合し、このナットを係留軸１２の外周面に接触させることもある。 In order to attach the tension rod 41 to the mooring shaft 12, a female screw 17 is formed at the center of the mooring shaft 12 so as to penetrate the outer peripheral surface, and the male screw 42 of the tension rod 41 is screwed into this. Further, in order to allow the tension rod 41 to reach the mooring shaft 12, a communication hole 59 is formed between the lower slope of the reinforced material 51 and the shaft receiving hole 55. The communication hole 59 is adjusted so as to extend horizontally when the reinforced material 51 is installed at a predetermined inclination. Although illustration is omitted, a nut may be screwed onto the male screw 42 to prevent the tension rod 41 from loosening, and the nut may be brought into contact with the outer peripheral surface of the mooring shaft 12.

拘束手段を構成する受け板２３と寄せボルト３３は、係留軸１２を挟み、テンションロッド４１の反対側に配置し、そのうち受け板２３は、被強化材５１の端面に接触させる。また寄せボルト３３は、受け板２３から係留軸１２に向けて差し込む。なお寄せボルト３３は、テンションロッド４１と同心に揃わないよう、被強化材５１の中央から離して左右に二本配置する。そのため受け板２３は横長の長円形で、その両端部には、寄せボルト３３の軸部を差し込む孔を形成してある。さらに係留軸１２には、寄せボルト３３と螺合する有底のネジ穴１８を左右二箇所に形成してある。そのほか、寄せボルト３３を係留軸１２に到達させるため、被強化材５１には、二本の接続孔５７を加工してある。 The receiving plate 23 and the shift bolt 33 constituting the restraining means are arranged on the opposite side of the tension rod 41 with the mooring shaft 12 interposed therebetween, and the receiving plate 23 is brought into contact with the end face of the material 51 to be reinforced. The shift bolt 33 is inserted from the receiving plate 23 toward the mooring shaft 12. In addition, two shift bolts 33 are arranged on the left and right apart from the center of the material 51 to be reinforced so as not to be concentric with the tension rod 41. Therefore, the receiving plate 23 has a horizontally long oval shape, and has holes formed at both ends thereof for inserting the shaft portion of the shift bolt 33. Further, the mooring shaft 12 is provided with two screw holes 18 having bottoms for screwing with the shift bolts 33 at two locations on the left and right. In addition, two connection holes 57 are formed in the reinforced material 51 so that the approach bolt 33 reaches the mooring shaft 12.

受け板２３から寄せボルト３３を差し込み、その先部を係留軸１２のネジ穴１８に螺合させると、係留軸１２が受け板２３に引き寄せられ、テンションロッド４１に作用する張力を受け板２３に伝達することができ、収軸孔５５の内周面の応力が緩和される。当然ながら、受け板２３の形状や、寄せボルト３３の配置などは、諸条件に応じて自在に決めて構わない。そのほか、被強化材５１を柱６１に据え付けるため、ホゾシャフト７１とドリフトピン６８を用いる点は、図１と同じである。 When the shift bolt 33 is inserted from the receiving plate 23 and its tip is screwed into the screw hole 18 of the mooring shaft 12, the mooring shaft 12 is drawn to the receiving plate 23, and the tension acting on the tension rod 41 is applied to the receiving plate 23. The transmission can be performed, and the stress on the inner peripheral surface of the shaft receiving hole 55 is reduced. Naturally, the shape of the receiving plate 23 and the arrangement of the shift bolt 33 may be freely determined according to various conditions. In addition, the point that the tenon shaft 71 and the drift pin 68 are used to mount the reinforcing material 51 on the pillar 61 is the same as that in FIG.

図５は、図４の被強化材５１を柱６１に据え付け、且つ被強化材５１にテンションロッド４１を取り付けた状態を示すが、図の左上には、被強化材５１の縦断面を描いてある。係留軸１２は、被強化材５１の収軸孔５５に差し込まれるほか、テンションロッド４１は、連絡孔５９を経て係留軸１２に螺合している。また、受け板２３と寄せボルト３３により、係留軸１２は、受け板２３の方に引き寄せられる。そのため、テンションロッド４１に作用する張力の一部は、受け板２３を介して被強化材５１の端面に伝達され、収軸孔５５の内周面の応力が緩和される。受け板２３は、どのような形状でも構わないが、係留軸１２を挟み、テンションロッド４１の反対側に配置する。 FIG. 5 shows a state in which the reinforcement member 51 of FIG. 4 is installed on a column 61 and a tension rod 41 is attached to the reinforcement member 51. In the upper left of the figure, a vertical cross section of the reinforcement member 51 is depicted. is there. The mooring shaft 12 is inserted into the shaft receiving hole 55 of the material 51 to be reinforced, and the tension rod 41 is screwed to the mooring shaft 12 via the communication hole 59. Further, the mooring shaft 12 is drawn toward the receiving plate 23 by the receiving plate 23 and the shift bolt 33. Therefore, a part of the tension acting on the tension rod 41 is transmitted to the end face of the reinforcing member 51 via the receiving plate 23, and the stress on the inner peripheral surface of the shaft receiving hole 55 is reduced. The receiving plate 23 may have any shape, but is disposed on the opposite side of the tension rod 41 with the mooring shaft 12 interposed therebetween.

図５においても、被強化材５１を柱６１に据え付けるため、ホゾシャフト７１やドリフトピン６８を用いるが、これらが受け板２３や寄せボルト３３と接触しないよう、収軸孔５５は、ホゾ穴７４の先端よりも上に加工してある。また図５のように、テンションロッド４１を被強化材５１の下方に配置するほか、係留軸１２の全体を収軸孔５５に埋め込むことで、被強化材５１の両側面には、何らの突出物も存在しない。そのため、複数組の柱６１と被強化材５１を密着配置し、剛性を一段と高めることもできる。 In FIG. 5 as well, a tenon shaft 71 and a drift pin 68 are used to mount the reinforcing member 51 on the pillar 61, but the center axis hole 55 is formed in the tenon hole 74 so that these do not come into contact with the receiving plate 23 and the shift bolt 33. Processed above the tip. Further, as shown in FIG. 5, the tension rod 41 is disposed below the material 51 to be reinforced, and the entire mooring shaft 12 is embedded in the shaft receiving hole 55, so that any side surfaces of the material 51 to be reinforced are not protruded. There is no thing. Therefore, a plurality of sets of columns 61 and the material to be reinforced 51 are arranged in close contact with each other, and the rigidity can be further increased.

図６は、水平に伸びる横架材を被強化材５２とし、この端部を柱６１に据え付けるほか、テンションロッド４１の上端部を被強化材５２に取り付ける構成を示し、拘束手段として、被強化材５２を跨ぐ冠体２７を用いている。この被強化材５２の端部付近には、両側面を貫く収軸孔５５を加工してあり、そこに係留軸１３を差し込む。またテンションロッド４１は、被強化材５２の左右両側に計二本配置する。そのため係留軸１３の両端部には、テンションロッド４１を差し込むための通し孔１６を形成してあり、通し孔１６から飛び出したテンションロッド４１のオネジ４２に終端ナット４４を螺合させ、テンションロッド４１を係留軸１３に取り付ける。 FIG. 6 shows a configuration in which a horizontal member extending horizontally is used as a material 52 to be reinforced, and its end is mounted on a column 61, and the upper end of a tension rod 41 is attached to the material 52 to be reinforced. The crown body 27 straddling the material 52 is used. In the vicinity of the end of the material 52 to be reinforced, a shaft receiving hole 55 penetrating both sides is machined, and the mooring shaft 13 is inserted therein. In addition, two tension rods 41 are arranged on both left and right sides of the material 52 to be reinforced. For this reason, through holes 16 for inserting the tension rods 41 are formed at both ends of the mooring shaft 13, and a terminal nut 44 is screwed into the male screw 42 of the tension rod 41 protruding from the through hole 16, and the tension rod 41 is inserted. Is attached to the mooring shaft 13.

冠体２７は、被強化材５２の上部を跨ぐ「コ」の字状で、その両側面には、係留軸１３を緩みなく差し込み可能な側窓２８を形成してある。さらに、冠体２７を被強化材５２に組み込み、その内面全域を被強化材５２の表面に接触させた際、側窓２８は、収軸孔５５と同心に揃う。そのため係留軸１３は、被強化材５２の収軸孔５５のほか、冠体２７の側窓２８でも受け止められ、係留軸１３に作用する荷重の一部は、冠体２７を介して被強化材５２の表面（上面）に伝達される。このように冠体２７を用いることで、収軸孔５５の内周面の応力が緩和される。当然ながら冠体２７は、係留軸１３を挟み、テンションロッド４１と対向するように配置する。 The crown body 27 has a U-shape that straddles the upper part of the material 52 to be reinforced, and has side windows 28 on both side surfaces into which the mooring shaft 13 can be inserted without looseness. Further, when the crown 27 is incorporated into the material to be reinforced 52 and the entire inner surface thereof is brought into contact with the surface of the material to be reinforced 52, the side window 28 is aligned concentrically with the shaft receiving hole 55. Therefore, the mooring shaft 13 is received by the side window 28 of the crown 27 in addition to the axle hole 55 of the material 52 to be reinforced, and part of the load acting on the mooring shaft 13 is 52 is transmitted to the surface (upper surface). By using the crown 27 in this manner, the stress on the inner peripheral surface of the shaft receiving hole 55 is reduced. Naturally, the crown 27 is disposed so as to face the tension rod 41 with the mooring shaft 13 interposed therebetween.

係留軸１３は、収軸孔５５や側窓２８で緩みなく保持されるが、テンションロッド４１の引き伸ばし方向を調整できるよう、係留軸１３は自在に回転可能である。また図６では、斜めに伸びるテンションロッド４１の上端部を係留軸１３に取り付ける。そのため冠体２７は、被強化材５２の上面側に組み込む。しかしこれとは逆に、テンションロッド４１の下端部を係留軸１３に取り付ける場合、冠体２７は、被強化材５２の下面側に組み込む。 The mooring shaft 13 is held without looseness by the shaft receiving hole 55 and the side window 28. However, the mooring shaft 13 is freely rotatable so that the extension direction of the tension rod 41 can be adjusted. In FIG. 6, the upper end of the tension rod 41 extending obliquely is attached to the mooring shaft 13. Therefore, the crown 27 is incorporated on the upper surface side of the material 52 to be reinforced. However, conversely, when the lower end of the tension rod 41 is attached to the mooring shaft 13, the crown 27 is incorporated on the lower surface side of the reinforced material 52.

図７は、図６の被強化材５２を柱６１に据え付け、且つ被強化材５２にテンションロッド４１を取り付けた状態を示すが、図の左上には、据え付けの途中段階を描いてある。被強化材５２の端部は、柱６１の上面に載り、Ｌ字状の連結部が構成されるほか、被強化材５２の上面に冠体２７が載り、さらに係留軸１３は、被強化材５２の収軸孔５５と冠体２７の側窓２８を貫き、その両端部が外部に突出している。また、計二本のテンションロッド４１は平行に並び、係留軸１３から斜め下方に伸びている。そのため、テンションロッド４１に作用する張力のうち、下向きの分力の一部は、冠体２７で受け止められる。なお図示は省略するが、冠体２７から被強化材５２に向けて釘類を打ち込むならば、テンションロッド４１に作用する張力の水平分力についても、冠体２７で受け止めることができる。そのほか柱６１と被強化材５２は、ホゾシャフト７１とドリフトピン６８を介して連結されている。 FIG. 7 shows a state in which the reinforcement member 52 of FIG. 6 is installed on the pillar 61 and the tension rod 41 is attached to the reinforcement member 52. The upper left part of the drawing shows a stage in the middle of the installation. The end of the material to be reinforced 52 rests on the upper surface of the column 61 to form an L-shaped connecting portion, and the crown 27 rests on the upper surface of the material to be reinforced 52. The shaft hole 55 of 52 and the side window 28 of the crown 27 penetrate, and both ends protrude outside. The two tension rods 41 are arranged in parallel and extend obliquely downward from the mooring shaft 13. Therefore, a part of the downward component of the tension acting on the tension rod 41 is received by the crown 27. Although not shown, if nails are driven from the crown 27 toward the material 52 to be reinforced, the horizontal component of the tension acting on the tension rod 41 can be received by the crown 27. In addition, the column 61 and the material to be reinforced 52 are connected to the tenon shaft 71 and the drift pin 68.

図８は、横架材を被強化材５２とし、この端部を柱６１に据え付ける構成を示し、拘束手段として、寄せボルト３３と二枚の受け板２３、２４を用いるほか、クレビス３４を介してテンションロッド４１を取り付けている。図８では、斜めに伸びるテンションロッド４１の上端部を係留軸１４に取り付け、また受け板２３、２４は、あらゆる方向の荷重に対応できるよう、被強化材５２の上面と端面に計二枚配置してある。なお、寄せボルト３３の配置を考慮し、上面に配置する受け板２３は長円形で、端面に配置する受け板２４は円形としてある。そのほか寄せボルト３３に対応し、係留軸１４の外周面には、計三箇所にネジ穴１８を形成してある。 FIG. 8 shows a structure in which the horizontal member is a material 52 to be reinforced, and the end of the material is installed on a column 61. In addition to using a shift bolt 33 and two receiving plates 23 and 24 as restraining means, a clevis 34 is used. The tension rod 41 is attached. In FIG. 8, the upper end of the diagonally extending tension rod 41 is attached to the mooring shaft 14, and the receiving plates 23 and 24 are arranged on the upper surface and the end surface of the reinforced material 52 so as to be able to cope with loads in all directions. I have. In consideration of the arrangement of the shift bolt 33, the receiving plate 23 disposed on the upper surface is oval, and the receiving plate 24 disposed on the end surface is circular. In addition, screw holes 18 are formed at a total of three places on the outer peripheral surface of the mooring shaft 14 corresponding to the shift bolts 33.

図８では、係留軸１４に寄せボルト３３を螺合しており、係留軸１４は回転不能で、そのままでは、テンションロッド４１の引き伸ばし方向を調整できない。そこでテンションロッド４１は、クレビス３４を介して係留軸１４に取り付ける。クレビス３４は、係留軸１４を差し込むための大穴３５が形成され、係留軸１４に対して自在に揺動可能で、併せて、テンションロッド４１を差し込むため、通し孔３６も形成してある。そのほかクレビス３４の脱落を防ぐため、円盤状のストッパ３８と、これを押圧する止めボルト３９を用いている。止めボルト３９に対応し、係留軸１４の端面中心には端ネジ１９を形成してあり、ストッパ３８は、係留軸１４の端面に取り付けられる。なおクレビス３４などは、係留軸１４の両端部に取り付け、被強化材５２の左右両側に計二本のテンションロッド４１を配置する。 In FIG. 8, the shift bolt 33 is screwed to the mooring shaft 14, and the mooring shaft 14 is not rotatable, and the stretching direction of the tension rod 41 cannot be adjusted as it is. Therefore, the tension rod 41 is attached to the mooring shaft 14 via the clevis 34. The clevis 34 has a large hole 35 into which the mooring shaft 14 is inserted. The clevis 34 can swing freely with respect to the mooring shaft 14. In addition, a through hole 36 is formed to insert the tension rod 41. In addition, in order to prevent the clevis 34 from dropping, a disc-shaped stopper 38 and a stopper bolt 39 for pressing the stopper 38 are used. An end screw 19 is formed at the center of the end surface of the mooring shaft 14 corresponding to the stop bolt 39, and the stopper 38 is attached to the end surface of the mooring shaft 14. The clevis 34 and the like are attached to both ends of the mooring shaft 14, and a total of two tension rods 41 are disposed on both left and right sides of the material 52 to be reinforced.

図９は、図８の被強化材５２を柱６１に据え付け、且つ被強化材５２にテンションロッド４１を取り付けた状態を示すが、図の左上には、据え付けの途中段階を描いてある。被強化材５２の端部は、柱６１の上面に載り、Ｌ字状の連結部が構成されるほか、被強化材５２には、クレビス３４を介し、左右両側に計二本のテンションロッド４１が取り付けられている。また係留軸１４は、二枚の受け板２３、２４で図の左上方向に引き寄せられ、テンションロッド４１に作用する張力の一部は、受け板２３、２４で受け止められる。 FIG. 9 shows a state in which the reinforcement member 52 of FIG. 8 is installed on the column 61 and the tension rod 41 is attached to the reinforcement member 52. The upper left part of the drawing shows a stage in the middle of the installation. The end of the material to be reinforced 52 rests on the upper surface of the column 61 to form an L-shaped connecting portion. The material to be reinforced 52 has two tension rods 41 on the left and right sides via the clevis 34. Is attached. Further, the mooring shaft 14 is drawn in the upper left direction in the drawing by the two receiving plates 23 and 24, and a part of the tension acting on the tension rod 41 is received by the receiving plates 23 and 24.

係留軸１４の両端部は、被強化材５２の側面から突出し、そこにクレビス３４を差し込んである。そして、クレビス３４の通し孔３６にテンションロッド４１を差し込み、さらに終端ナット４４でテンションロッド４１の脱落を防いでいる。なおクレビス３４は、ストッパ３８で規制され、係留軸１４から脱落不能だが、係留軸１４に対して自在に揺動可能で、テンションロッド４１をあらゆる方向に引き伸ばすことができる。そのほか柱６１と被強化材５２は、ホゾシャフト７１とドリフトピン６８を介して連結されている。 Both ends of the mooring shaft 14 protrude from the side surface of the reinforced material 52, and the clevis 34 is inserted therein. Then, the tension rod 41 is inserted into the through hole 36 of the clevis 34, and the tension nut 41 is prevented from falling off by the terminal nut 44. The clevis 34 is regulated by the stopper 38 and cannot drop off from the mooring shaft 14, but can swing freely with respect to the mooring shaft 14, and can extend the tension rod 41 in any direction. In addition, the column 61 and the material to be reinforced 52 are connected to the tenon shaft 71 and the drift pin 68.

図１０は、直立する柱を被強化材５３とするほか、拘束手段として冠体２７を用いる構成を示し、係留軸１５には、計四本のテンションロッド４１を取り付け、さらに被強化材５３の上部側面には、対向するように二本の桁材６２を連結する。桁材６２は、被強化材５３の上部側面から水平に伸びる部材で、金具８１を介して被強化材５３に連結される。なお金具８１は「コ」の字状で、その中央面には丸ホゾ８４を形成してあり、これを被強化材５３の側面に加工したホゾ溝５４に嵌め込むことで、金具８１の変位を規制するほか、各種荷重を伝達する。 FIG. 10 shows a configuration in which the upright pillar is used as the reinforcement member 53 and the crown 27 is used as a restraining means. The mooring shaft 15 is attached with a total of four tension rods 41. Two girder members 62 are connected to the upper side surface so as to face each other. The beam member 62 is a member that extends horizontally from the upper side surface of the material 53 to be reinforced, and is connected to the material 53 to be reinforced via a metal fitting 81. The metal fitting 81 has a U-shape, and has a round tenon 84 formed at the center surface thereof. By fitting this into a tenon groove 54 machined on the side surface of the material 53 to be reinforced, the displacement of the metal fitting 81 is made. In addition to transmitting various loads.

金具８１は、被強化材５３を挟むように二個配置し、さらに金具８１を被強化材５３に固定するため、固定ボルト８８と固定ナット８９を用いる。固定ボルト８８は、一方の金具８１の裏側から差し込み、丸ホゾ８４の中心を通り、被強化材５３に加工した先方孔８７を抜け、対向する金具８１に到達させる。そして固定ボルト８８の先部に固定ナット８９を螺合させ、これらを締め付けると、二個の金具８１は、被強化材５３に密着して固定される。そのほか桁材６２の端部には、金具８１を差し込むため、二列のスリット６６を加工してあり、桁材６２の側面には、ドリフトピン６８を打ち込むための横穴６５を加工してある。横穴６５は、スリット６６と交差して反対面に到達する。またドリフトピン６８を通すため、金具８１には、ピン孔８５とピン溝８６を形成してある。 Two metal fittings 81 are arranged so as to sandwich the material 53 to be reinforced, and a fixing bolt 88 and a fixing nut 89 are used to fix the metal material 81 to the material 53 to be reinforced. The fixing bolt 88 is inserted from the back side of the one metal fitting 81, passes through the center of the round tenon 84, passes through the front hole 87 formed in the material 53 to be reinforced, and reaches the metal fitting 81 facing thereto. Then, when a fixing nut 89 is screwed onto the tip of the fixing bolt 88 and tightened, the two metal fittings 81 are fixed in close contact with the material 53 to be reinforced. In addition, two rows of slits 66 are machined at the end of the beam member 62 to insert the metal fittings 81, and a lateral hole 65 for driving a drift pin 68 is machined at the side surface of the beam member 62. The side hole 65 crosses the slit 66 and reaches the opposite surface. In addition, a pin hole 85 and a pin groove 86 are formed in the metal fitting 81 to allow the drift pin 68 to pass therethrough.

収軸孔５５は、固定ボルト８８との接触を避けるため、上下二箇所の先方孔８７の間に加工してある。また冠体２７は、被強化材５３の断面形状に応じた大きさで、その側窓２８は収軸孔５５と同心に揃う。そして図１０では、係留軸１５の一端部において、引き伸ばし方向の異なる二本のテンションロッド４１を取り付けるため、係留軸１５の両端部に通し孔１６を形成することに加え、クレビス３４も使用する。係留軸１５は、収軸孔５５に対して回転可能で、さらにクレビス３４は、係留軸１５に対して揺動可能で、あらゆる方向にテンションロッド４１を引き伸ばすことができる。 The shaft receiving hole 55 is formed between two upper and lower forward holes 87 in order to avoid contact with the fixing bolt 88. The crown 27 has a size corresponding to the cross-sectional shape of the material 53 to be reinforced, and the side window 28 is concentric with the shaft receiving hole 55. In FIG. 10, in order to attach two tension rods 41 having different extending directions to one end of the mooring shaft 15, the clevis 34 is used in addition to forming the through holes 16 at both ends of the mooring shaft 15. The mooring shaft 15 is rotatable with respect to the shaft receiving hole 55, and the clevis 34 is swingable with respect to the mooring shaft 15, so that the tension rod 41 can be extended in any direction.

図１１は、図１０の桁材６２を被強化材５３に据え付け、且つ被強化材５３に計四本のテンションロッド４１を取り付けた状態を示すが、図の左上には、被強化材５３に冠体２７と係留軸１５と金具８１を組み込んだ途中段階を描いてある。図１１の被強化材５３は、垂直に伸びる柱で、その上端部に冠体２７を載せてある。また係留軸１５の両端部は、冠体２７から突出しており、そこにクレビス３４を差し込み、さらに係留軸１５とクレビス３４の双方の通し孔１６、３６には、テンションロッド４１を取り付ける。そのほか、対向する二本の桁材６２は、金具８１とドリフトピン６８を介して被強化材５３に連結される。 FIG. 11 shows a state in which the girder member 62 of FIG. 10 is installed on the reinforced member 53, and four tension rods 41 are attached to the reinforced member 53. The middle stage in which the crown 27, the mooring shaft 15, and the metal fitting 81 are assembled is illustrated. The material 53 to be reinforced in FIG. 11 is a vertically extending column, and the crown 27 is placed on the upper end thereof. Both ends of the mooring shaft 15 protrude from the crown 27, and the clevis 34 is inserted therein. Further, the tension rod 41 is attached to the through holes 16 and 36 of both the mooring shaft 15 and the clevis 34. In addition, the two opposing beam members 62 are connected to the material 53 to be reinforced through the metal fittings 81 and the drift pins 68.

図１２は、これまでの各図に描いた構成を用い、枠組を強化する方法の一例を示す。この枠組は、水平に伸びる二本の被強化材５２（横架材）と、中央で垂直に伸びる一本の被強化材５３（柱）と、下方で水平に伸びる二本の下枠材４６と、左右両端で垂直に伸びる側枠材４７と、からなり、いずれの部材とも断面形状は共通だが、テンションロッド４１を取り付ける部材に限り、被強化材５２、５３と称するものとする。またテンションロッド４１は、枠組の左上と中央下を結ぶものと、右上と中央下を結ぶものがあり、全体でＶ字状に配置するほか、枠組の表裏に計二列配置する。そしてテンションロッド４１を取り付けるため、被強化材５２、５３には、収軸孔５５や環状溝５６や接続孔５７を加工してある。 FIG. 12 shows an example of a method for strengthening the framework using the configurations depicted in the respective drawings. This framework includes two reinforced members 52 (horizontal members) extending horizontally, one reinforced member 53 (column) extending vertically in the center, and two lower frame members 46 extending horizontally below. And a side frame member 47 extending vertically at both left and right ends. The cross-sectional shape is common to all the members, but only members to which the tension rod 41 is attached are referred to as members to be reinforced 52 and 53. The tension rods 41 include one connecting the upper left and the lower center of the framework, and one connecting the upper right and the lower center. The tension rods 41 are arranged in a V-shape as a whole, and are arranged in two rows on the front and back of the framework. In order to attach the tension rod 41, the shaft receiving holes 55, the annular grooves 56, and the connection holes 57 are formed in the reinforcing members 52, 53.

枠組の左上角には、クレビス３４を介してテンションロッド４１を取り付ける。このクレビス３４を支える係留軸１４は、二枚の受け板２３、２４に引き寄せられ、テンションロッド４１に作用する張力は、被強化材５２の表面でも受け止められる。また枠組の右上角では、係留軸１１に補強リング２１を併用し、応力を緩和している。なおここでは、クレビス３４を用いることなく、係留軸１１の外周面にテンションロッド４１を差し込んでいる。そして枠組の中央下では、被強化材５３の下端部に冠体２７を嵌め込み、双方を貫くように係留軸１５を差し込んでいる。ここでは二方向のテンションロッド４１が集積しており、その一方はクレビス３４に取り付け、他方は係留軸１５の外周面に差し込んでいる。 A tension rod 41 is attached to the upper left corner of the framework via a clevis 34. The mooring shaft 14 that supports the clevis 34 is drawn to the two receiving plates 23 and 24, and the tension acting on the tension rod 41 is received also on the surface of the material 52 to be reinforced. At the upper right corner of the framework, the reinforcing ring 21 is used in combination with the mooring shaft 11 to reduce stress. Here, the tension rod 41 is inserted into the outer peripheral surface of the mooring shaft 11 without using the clevis 34. Then, below the center of the framework, the crown 27 is fitted into the lower end of the material 53 to be reinforced, and the mooring shaft 15 is inserted so as to penetrate both. Here, bidirectional tension rods 41 are integrated, one of which is attached to the clevis 34 and the other is inserted into the outer peripheral surface of the mooring shaft 15.

枠組の中には、二本のテンションロッド４１を接続するターンバック４８を配置してあり、ターンバックル４８を回転させてテンションロッド４１を引き寄せると、枠組に圧縮荷重が発生し、剛性が向上する。なお二方向のテンションロッド４１が集積する中央下では、張力の水平分力が打ち消され、係留軸１５には上向きの荷重が作用するが、これは冠体２７で受け止められる。そのほか、枠組を構成する各部材同士は、様々な従来技術で連結してある。また、テンションロッド４１に螺合する終端ナット４４など、一部の部品は、作図を省略している。 A turnback 48 for connecting the two tension rods 41 is arranged in the framework, and when the turnbuckle 48 is rotated to draw the tension rod 41, a compressive load is generated in the framework and rigidity is improved. . Below the center where the tension rods 41 in two directions accumulate, the horizontal component of the tension is canceled, and an upward load acts on the mooring shaft 15, which is received by the crown 27. In addition, the members constituting the framework are connected by various conventional techniques. Some parts such as a terminal nut 44 screwed to the tension rod 41 are not illustrated.

図１３は、拘束手段として受け板２３と寄せボルト３３を用い、クレビス３４を介してテンションロッド４１を取り付けるほか、柱６１の上面に被強化材５２と桁材６２を十字状に連結する構成を示す。図１３では、水平に伸びる横架材を被強化材５２としており、これを柱６１の上面に載せる。また被強化材５２の収軸孔５５に係留軸１４を差し込み、その両端部にクレビス３４を組み込み、左右両側に計二本のテンションロッド４１を取り付ける。さらに係留軸１４を引き寄せるため、被強化材５２の上面には、長円形の受け板２３を配置し、ここから係留軸１４のネジ穴１８に向け、寄せボルト３３を差し込む。そのほか被強化材５２の端面には、矩形状の境界板２５を配置する。境界板２５は、被強化材５２の端面と同じ大きさで、皿ネジ２９で被強化材５２に固定する。 FIG. 13 shows a configuration in which a receiving plate 23 and a shift bolt 33 are used as restraining means, a tension rod 41 is attached via a clevis 34, and a reinforcement member 52 and a beam member 62 are connected to the upper surface of a column 61 in a cross shape. Show. In FIG. 13, a horizontal member extending horizontally is used as the material to be reinforced 52, which is placed on the upper surface of the column 61. Further, the mooring shaft 14 is inserted into the shaft receiving hole 55 of the material 52 to be reinforced, the clevis 34 is installed at both ends thereof, and a total of two tension rods 41 are attached to both left and right sides. In order to further pull the mooring shaft 14, an oval receiving plate 23 is disposed on the upper surface of the material 52 to be reinforced, and a shift bolt 33 is inserted from here toward the screw hole 18 of the mooring shaft 14. In addition, a rectangular boundary plate 25 is disposed on the end face of the material 52 to be reinforced. The boundary plate 25 has the same size as the end face of the material to be reinforced 52 and is fixed to the material to be reinforced 52 with the flathead screw 29.

中心材６３は、被強化材５２や桁材６２を柱６１に据え付けるための部材で、ホゾシャフト７１とドリフトピン６８を介して柱６１の上面に固定する。なお、柱６１は矩形断面であるのに対し、中心材６３は正方形断面で、被強化材５２の端部下面は、柱６１の上面に載り、境界板２５は中心材６３の側面に接触する。また桁材６２は、被強化材５２の反対側のほか、これに直交する二方向にも配置し、計三本用いる。したがって真上から見ると、被強化材５２と桁材６２は十字状に配置される。そして桁材６２は、金具８１、８２を介して中心材６３の側面に連結されるが、金具８１、８２は、固定ボルト８８や寄せボルト９０で中心材６３に密着させる。その際、中心材６３の内部で、固定ボルト８８や寄せボルト９０が接触しないよう、丸ホゾ８４の配置が異なる二種類の金具８１、８２を用いており、一方（金具８１）は丸ホゾ８４が上寄りで、他方（金具８２）は丸ホゾ８４が下寄りである。これらの丸ホゾ８４に対応し、中心材６３の各側面には、所定の位置にホゾ溝６９を加工してある。 The center member 63 is a member for mounting the reinforcing member 52 and the beam member 62 on the column 61, and is fixed to the upper surface of the column 61 via the tenon shaft 71 and the drift pin 68. The column 61 has a rectangular cross section, whereas the center member 63 has a square cross section. The lower surface of the end of the reinforced material 52 rests on the upper surface of the column 61, and the boundary plate 25 contacts the side surface of the center member 63. . In addition to the opposite side of the reinforcement member 52, the beam members 62 are arranged in two directions orthogonal to the reinforcement member 52, and a total of three beams are used. Therefore, when viewed from directly above, the reinforcement member 52 and the beam members 62 are arranged in a cross shape. The beam member 62 is connected to the side surface of the center member 63 via metal members 81 and 82, and the metal members 81 and 82 are brought into close contact with the center member 63 with fixing bolts 88 and shift bolts 90. At this time, two types of metal fittings 81 and 82 having different arrangements of the round mortises 84 are used so that the fixing bolts 88 and the shift bolts 90 do not come into contact with the inside of the center member 63. Is upward, and the other (metal fitting 82) has a round tenon 84 downward. A mortise groove 69 is formed at a predetermined position on each side surface of the center member 63 corresponding to the round mortise 84.

被強化材５２と対向する金具８１は、固定ボルト８８と寄せボルト９０を用い、中心材６３に密着させる。そのうち寄せボルト９０は、中心材６３の先方孔８７から境界板２５を抜け、被強化材５２の接続孔５７を経て、係留軸１４のネジ穴１８に螺合し、係留軸１４を境界板２５の方に引き寄せる。また、寄せボルト９０の下の固定ボルト８８は、中心材６３を経て境界板２５のネジ孔２６に螺合する。これに対し、被強化材５２と直交する二個の金具８２は、中心材６３を貫く固定ボルト８８と、これに螺合する固定ナット８９により、中心材６３に密着する。そして個々の桁材６２は、その横穴６５から差し込むドリフトピン６８により、金具８１、８２と一体化する。 The metal fitting 81 facing the material to be reinforced 52 is brought into close contact with the center member 63 by using a fixing bolt 88 and a shift bolt 90. Among them, the shift bolt 90 passes through the boundary plate 25 from the forward hole 87 of the central member 63, and is screwed into the screw hole 18 of the mooring shaft 14 through the connection hole 57 of the material 52 to be reinforced, and the mooring shaft 14 is connected to the boundary plate 25. Attraction. The fixing bolt 88 below the shift bolt 90 is screwed into the screw hole 26 of the boundary plate 25 via the center member 63. On the other hand, two metal fittings 82 orthogonal to the material to be reinforced 52 are in close contact with the center member 63 by a fixing bolt 88 penetrating the center member 63 and a fixing nut 89 screwed to the fixing bolt 88. Each of the beam members 62 is integrated with the metal fittings 81 and 82 by the drift pins 68 inserted through the lateral holes 65.

図１４は、図１３の各要素を組み上げる途中段階を示し、図の左上には、被強化材５２に係留軸１４や境界板２５などを取り付けた状態を描いてあり、図の右下には、被強化材５２に中心材６３と金具８１、８２を取り付けた状態を描いてある。被強化材５２には、まず係留軸１４と受け板２３と境界板２５を取り付け、次に境界板２５を中心材６３の側面に接触させると共に、中心材６３の残る三側面には、金具８１、８２を配置する。併せて中心材６３の中心を貫くホゾ穴６４には、ホゾシャフト７１を差し込む。そして最後に、固定ボルト８８や寄せボルト９０を差し込み、これらを固定ナット８９などに螺合させると、金具８１、８２は、中心材６３の側面に密着する。なお固定ボルト８８や寄せボルト９０は、ホゾシャフト７１のピン孔７８を通過するため、ホゾシャフト７１も中心材６３に固定される。 FIG. 14 shows an intermediate stage of assembling the respective elements of FIG. 13. In the upper left of the figure, a state in which the mooring shaft 14 and the boundary plate 25 are attached to the reinforced material 52 is depicted, and in the lower right of the figure, The state where the center member 63 and the metal fittings 81 and 82 are attached to the reinforced material 52 is illustrated. First, the mooring shaft 14, the receiving plate 23, and the boundary plate 25 are attached to the reinforced material 52, and then the boundary plate 25 is brought into contact with the side surface of the center member 63. , 82 are arranged. At the same time, a tenon shaft 71 is inserted into a tenon hole 64 penetrating the center of the center member 63. Finally, when the fixing bolt 88 and the shift bolt 90 are inserted and screwed into a fixing nut 89 or the like, the metal fittings 81 and 82 come into close contact with the side surface of the center member 63. Since the fixing bolt 88 and the shift bolt 90 pass through the pin hole 78 of the tenon shaft 71, the tenon shaft 71 is also fixed to the center member 63.

図１５は、図１３の中心材６３と被強化材５２と桁材６２を柱６１に据え付けた状態を示し、一本の被強化材５２と三本の桁材６２は、中心材６３の側面に引き寄せられ、真上から見て十字状に並ぶ。また被強化材５２と中心材６３は、柱６１の上面に載り、さらに柱６１と中心材６３は、ホゾシャフト７１とドリフトピン６８を介して連結されている。そしてテンションロッド４１は、係留軸１４とクレビス３４を介し、被強化材５２の両側面に計二本配置されている。このように本発明は、建築物の骨格において、あらゆる箇所にテンションロッド４１を取り付けることができ、骨格全体の剛性を高め、建築物の安全性の向上に寄与する。 FIG. 15 shows a state in which the center member 63, the reinforced member 52, and the girder member 62 of FIG. 13 are installed on the column 61, and one reinforced member 52 and three girder members 62 are side surfaces of the center member 63. And are lined up in a cross when viewed from directly above. The reinforcing member 52 and the center member 63 are mounted on the upper surface of the column 61, and the column 61 and the center member 63 are connected to each other via a tenon shaft 71 and a drift pin 68. Two tension rods 41 are arranged on both sides of the material 52 to be reinforced via the mooring shaft 14 and the clevis 34. As described above, according to the present invention, the tension rod 41 can be attached to any part of the building skeleton, and the rigidity of the entire skeleton is increased, which contributes to the improvement of the safety of the building.

１１係留軸（補強リングと併用）
１２係留軸（寄せボルトと併用・メネジあり）
１３係留軸（冠体と併用）
１４係留軸（寄せボルトと併用・両端にストッパを取り付け）
１５係留軸（冠体と併用・計四本のテンションロッドを保持）
１６通し孔（係留軸側）
１７メネジ
１８ネジ穴
１９端ネジ
２１補強リング（拘束手段）
２３受け板（拘束手段・長円形）
２４受け板（拘束手段・円形）
２５境界板
２６ネジ孔
２７冠体（拘束手段）
２８側窓
２９皿ネジ
３１丸板
３２ネジ釘
３３寄せボルト（拘束手段）
３４クレビス
３５大穴
３６通し孔（クレビス側）
３８ストッパ
３９止めボルト
４１テンションロッド
４２オネジ
４４終端ナット
４６下枠材
４７側枠材
４８ターンバックル
４９棟木
５１被強化材（登り梁）
５２被強化材（横架材）
５３被強化材（柱）
５４ホゾ溝（被強化材側）
５５収軸孔
５６環状溝
５７接続孔
５８水平面
５９連絡孔
６１柱（被強化材ではないもの）
６２桁材
６３中心材
６４ホゾ穴（被強化材ではない側）
６５横穴（被強化材ではない側）
６６スリット
６８ドリフトピン
６９ホゾ溝（中心材側）
７１ホゾシャフト
７４ホゾ穴（被強化材側）
７５横穴（被強化材側）
７８ピン孔（ホゾシャフト側）
８１金具
８２金具（丸ホゾを下寄りに配置したもの）
８４丸ホゾ
８５ピン孔（金具側）
８６ピン溝
８７先方孔
８８固定ボルト
８９固定ナット
９０寄せボルト 11 Mooring shaft (used together with reinforcing ring)
12 Mooring shaft (used with pulling bolt and female thread)
13 Mooring axis (used with crown)
14 Mooring shaft (used together with shift bolts, with stoppers at both ends)
15 Mooring shaft (used together with the crown, holding a total of four tension rods)
16 Through hole (Mooring shaft side)
17 female screw 18 screw hole 19 end screw 21 reinforcing ring (restraint means)
23 Receiving plate (restraint means oval)
24 Receiving plate (restraint means, circular)
25 Boundary plate 26 Screw hole 27 Crown (restraint means)
28 side window 29 countersunk screw 31 round plate 32 screw nail 33 approaching bolt (restraining means)
34 Clevis 35 Large hole 36 Through hole (Clevis side)
38 Stopper 39 Stop bolt 41 Tension rod 42 Male screw 44 Terminal nut 46 Lower frame material 47 Side frame material 48 Turnbuckle 49 Purlin 51 Reinforced material (uphill beam)
52 Reinforced material (horizontal material)
53 Reinforced material (pillar)
54 Groove (on the material to be reinforced)
55 Shaft receiving hole 56 Annular groove 57 Connection hole 58 Horizontal surface 59 Communication hole 61 Column (not reinforced material)
62 Girder material 63 Center material 64 Tenon hole (side not reinforced material)
65 Side hole (non-reinforced material side)
66 Slit 68 Drift pin 69 Tenon groove (center material side)
71 Tenon shaft 74 Tenon hole (material to be reinforced)
75 side hole (reinforced material side)
78 pin hole (hozo shaft side)
81 Metal fittings 82 Metal fittings (circular tenon placed below)
84 Round tenon 85 Pin hole (metal side)
86 Pin groove 87 Forward hole 88 Fixing bolt 89 Fixing nut 90 Pulling bolt

Claims

A mounting structure of a tension rod (41) for strengthening a skeleton of a wooden building,
A shaft receiving hole (55) is provided on a side surface of the reinforcing material ( 52 ) constituting the skeleton of the wooden building,
A mooring shaft ( 14 ) for retaining the end of the tension rod (41) is inserted into the shaft receiving hole (55),
Wherein for restricting the displacement of the mooring shaft and the reinforcement (52) (14), is provided with a restraining means engaging Tomejiku (14),
The restraining means includes a receiving plate (23 or 24) disposed on the surface of the material to be reinforced (52), and a pull-off bolt (23) inserted from the receiving plate (23 or 24) and screwed to the mooring shaft (14). 33)
A plurality of shift bolts (33) are used for one mooring shaft (14), and the plurality of shift bolts (33) are arranged in two orthogonal directions. Tension rod mounting structure.