JP2015140616A - Brace and brace attachment method - Google Patents
Brace and brace attachment method Download PDFInfo
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- JP2015140616A JP2015140616A JP2014015425A JP2014015425A JP2015140616A JP 2015140616 A JP2015140616 A JP 2015140616A JP 2014015425 A JP2014015425 A JP 2014015425A JP 2014015425 A JP2014015425 A JP 2014015425A JP 2015140616 A JP2015140616 A JP 2015140616A
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- 238000000034 method Methods 0.000 title claims description 11
- 238000003825 pressing Methods 0.000 claims description 46
- 230000006835 compression Effects 0.000 claims description 41
- 238000007906 compression Methods 0.000 claims description 41
- 238000010276 construction Methods 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000011150 reinforced concrete Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 241000771208 Buchanania arborescens Species 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
Description
本発明は、木質のブレースに関する。 The present invention relates to a wooden brace.
建物の耐震性を高める耐震要素として、鉄骨製のブレースが挙げられる。例えば、特許文献１には、繊維補強モルタルによって形成された固定部を介して架構に端部が接合された鉄骨製のブレースが開示されている。しかし、鉄骨製のブレースは部材重量が重いために運搬や設置が煩雑になるので、施工に多くの手間や時間が掛かってしまう。 As a seismic element that enhances the seismic resistance of buildings, steel frame braces can be mentioned. For example, Patent Document 1 discloses a steel brace whose end is joined to a frame via a fixing portion formed of fiber reinforced mortar. However, since the steel brace has a heavy member weight, it is complicated to carry and install, so that it takes a lot of work and time for construction.
本発明は係る事実を考慮し、ブレースの施工手間を低減することを課題とする。 This invention considers the fact which concerns, and makes it a subject to reduce the construction effort of a brace.
第１態様の発明は、架構の接合部間に設けられる木質のブレース本体と、一方の前記接合部に前記ブレース本体の一端部を連結する第１連結部と、他方の前記接合部に固定され、前記ブレース本体の他端部が連結されるとともに前記ブレース本体へ軸圧縮力を付与する第２連結部と、を有するブレースである。 The invention of the first aspect is fixed to the wood brace body provided between the joint portions of the frame, the first connection portion connecting one end portion of the brace body to one of the joint portions, and the other joint portion. The brace body has a second connecting part to which the other end part of the brace body is connected and to apply an axial compression force to the brace body.
第１態様の発明では、ブレース本体を圧縮ブレースとして機能させ、このブレース本体により地震力を負担して架構の耐震性を向上させることができる。また、ブレース本体は木質で軽量なので、ブレース本体の持ち運び作業や取り付け作業を容易に行うことができる。すなわち、ブレースの施工手間を低減することができる。さらに、ブレース本体を木質にすることによって、仕上げ材を用いなくても美観に優れたブレースを構成することができ、自然材料の使用による環境負荷低減に貢献することができる。 In the first aspect of the invention, the brace body can function as a compression brace, and the seismic force can be borne by the brace body to improve the earthquake resistance of the frame. In addition, since the brace body is woody and lightweight, it is easy to carry and attach the brace body. That is, it is possible to reduce the time and labor for bracing. Furthermore, by making the brace body woody, it is possible to construct a brace that is excellent in aesthetics without using a finishing material, and can contribute to reducing the environmental load due to the use of natural materials.
第２態様の発明は、第１態様のブレースにおいて、前記第２連結部は、弾性部材と、前記ブレース本体の他端部に設けられたベース部材との間に前記弾性部材を挟み込み、他方の前記接合部に固定される押付部材と、前記ベース部材及び前記押付部材に取り付けて前記ベース部材と前記押付部材を繋ぎ、締め付けによって前記押付部材により前記弾性部材を前記ベース部材に押し付け、他方の前記接合部に前記押付部材を固定した後に取り外して他方の前記接合部に前記ブレース本体の他端部を連結するボルト部材と、を有する。 The second aspect of the invention is the brace of the first aspect, wherein the second connecting portion sandwiches the elastic member between an elastic member and a base member provided at the other end of the brace body, A pressing member fixed to the joint, and the base member and the pressing member are attached to the base member and the pressing member, the elastic member is pressed against the base member by the pressing member by tightening, and the other And a bolt member that is removed after the pressing member is fixed to the joint, and is connected to the other joint of the brace body.
第２態様の発明では、ボルト部材を締め付けて押付部材によりベース部材に弾性部材を押し付けた状態にすることにより、弾性部材から発生する反発力を、ボルト部材によりベース部材（ブレース本体の他端部）に繋げられている押付部材が受ける。これにより、弾性部材から発生する反発力が押付部材からブレース本体の軸方向外側へ作用しないようになるので、他方の接合部に押付部材を固定し易くすることができ、ブレース本体の他端部を他方の接合部に着脱し易くすることができる。よって、ブレースの取り付け作業及び取り外し作業の手間を軽減することができるので、ブレース取り付け位置の変更やブレースのメンテナンスを容易に行うことができる。 In the second aspect of the invention, the bolt member is tightened and the elastic member is pressed against the base member by the pressing member, so that the repulsive force generated from the elastic member is applied to the base member (the other end of the brace body) by the bolt member. ) Is received by the pressing member. As a result, the repulsive force generated from the elastic member does not act on the outer side in the axial direction of the brace body from the pressing member, so that the pressing member can be easily fixed to the other joint, and the other end of the brace body Can be easily attached to and detached from the other joint. Therefore, the labor for attaching and removing the brace can be reduced, so that the change of the brace attachment position and the maintenance of the brace can be easily performed.
第３態様の発明は、第１態様のブレースの取り付け方法において、前記ブレース本体の一端部を一方の前記接合部に連結する工程と、前記第２連結部に前記ブレース本体の他端部を連結し前記第２連結部により前記ブレース本体へ軸圧縮力を付与した状態で、他方の前記接合部に前記第２連結部を固定する工程と、を有する。 The invention of the third aspect is the method of attaching the brace of the first aspect, wherein the step of connecting one end portion of the brace body to one of the joint portions and the other end portion of the brace body are connected to the second connecting portion. And fixing the second connecting part to the other joining part in a state where an axial compression force is applied to the brace body by the second connecting part.
第３態様の発明では、第１態様のブレースと同様の効果を得ることができる。 In the invention of the third aspect, the same effect as the brace of the first aspect can be obtained.
本発明は上記構成としたので、ブレースの施工手間を低減することができる。 Since this invention set it as the said structure, the construction effort of a brace can be reduced.
図を参照しながら、本発明の実施形態を説明する。まず、本発明の実施形態に係るブレースについて説明する。 Embodiments of the present invention will be described with reference to the drawings. First, a brace according to an embodiment of the present invention will be described.
図１の斜視図には、鉄筋コンクリート造の建物１０の耐震改修工事において、本実施形態のブレース１２を建物１０の有する柱梁架構１４に設置して耐震補強を施した例が示されている。図２の分解図、及び図４（ｃ）の立面図に示すように、ブレース１２は、ブレース本体１６、第１連結部１８、及び第２連結部２０を有して構成されている。 The perspective view of FIG. 1 shows an example in which the brace 12 of the present embodiment is installed on the column beam frame 14 of the building 10 and subjected to seismic reinforcement in the seismic repair work of the reinforced concrete building 10. As shown in the exploded view of FIG. 2 and the elevation view of FIG. 4C, the brace 12 includes a brace body 16, a first connecting part 18, and a second connecting part 20.
ブレース本体１６は、木材によって形成された角柱状の木質部材であり、鉄筋コンクリート製の柱２２Ａ、２２Ｂと梁２４Ａ、２４Ｂによって構成された柱梁架構１４の接合部としての柱梁接合部２６、２８間に斜めに設けられている。 The brace body 16 is a prismatic wooden member formed of wood, and column beam joints 26 and 28 as joints of the column beam frame 14 composed of reinforced concrete columns 22A and 22B and beams 24A and 24B. It is provided diagonally between them.
第１連結部１８は、ブレース本体１６の一端部３０に設けられる木製の接合部材３２と、この接合部材３２を柱梁接合部２６に接着固定する接着剤によって形成された接着層３４とを有して構成され、一方の接合部としての柱梁接合部２６にブレース本体１６の一端部３０を連結している。接合部材３２は、接着層３４を介して柱梁接合部２６に一体に接着固定できるように、先端部が略直角に形成されている。 The first connecting portion 18 has a wooden joining member 32 provided at one end 30 of the brace body 16 and an adhesive layer 34 formed by an adhesive that adheres and fixes the joining member 32 to the beam-column joining portion 26. The one end part 30 of the brace main body 16 is connected to the column beam joint part 26 as one joint part. The joining member 32 has a distal end portion formed at a substantially right angle so that the joining member 32 can be integrally bonded and fixed to the column beam joining portion 26 via the adhesive layer 34.
図３（ｂ）の側断面図に示すように、第２連結部２０は、弾性部材としての圧縮コイルばね３６、押付部材３８、及びボルト部材４０を有して構成されている。また、押付部材３８は、鋼製の固定プレート４２と、固定プレート４２の中心部に開口しこの中心部にブレース本体１６と逆側に突出して設けられた鋼製の筒状有底部材４４とを有して構成されており、図４（ｃ）に示すように、モルタルにより連結ブロック４６を形成することによって柱梁接合部２８に固定されている。なお、第２連結部２０は、後に説明する図５の側面図に示すように、ベース部材５０と押付部材３８からボルト部材４０が取り外された状態においては、このボルト部材４０を除いた、圧縮コイルばね３６及び押付部材３８を有して構成される。 As shown in the side sectional view of FIG. 3B, the second connecting portion 20 includes a compression coil spring 36, a pressing member 38, and a bolt member 40 as elastic members. The pressing member 38 includes a steel fixed plate 42, and a steel cylindrical bottomed member 44 that is open at the center of the fixed plate 42 and protrudes on the opposite side of the brace body 16 at the center. As shown in FIG. 4C, the connecting block 46 is formed by mortar and is fixed to the beam-column joint portion 28. As shown in a side view of FIG. 5, which will be described later, the second connecting portion 20 is a compression that excludes the bolt member 40 when the bolt member 40 is removed from the base member 50 and the pressing member 38. A coil spring 36 and a pressing member 38 are included.
図３（ｂ）に示すように、圧縮コイルばね３６は、先端部が固定プレート４２のブレース本体１６側の面４８から突出するようにして筒状有底部材４４内に収容される。また、固定プレート４２のブレース本体１６側の面４８には、後に説明するベース部材５０が面４８の面方向へずれるのを防ぐ枠部材５２が設けられている。 As shown in FIG. 3 (b), the compression coil spring 36 is accommodated in the cylindrical bottomed member 44 such that the tip portion protrudes from the surface 48 of the fixing plate 42 on the brace body 16 side. A frame member 52 is provided on the surface 48 of the fixing plate 42 on the brace body 16 side to prevent a base member 50 described later from shifting in the surface direction of the surface 48.
図３（ｂ）に示すように、押付部材３８は、ブレース本体１６の他端部５４に設けられた鋼板からなるベース部材５０との間に圧縮コイルばね３６を挟み込んだ状態で、ベース部材５０に形成された貫通孔５６にボルト部材４０を貫通させ、このボルト部材４０の端部を固定プレート４２に設けられた袋ナット５８の雌ねじ部に捩じ込む。すなわち、ベース部材５０及び押付部材３８にボルト部材４０を取り付けてベース部材５０と押付部材３８を繋ぐ。さらに、図３（ｃ）の側断面図に示すように、ボルト部材４０を袋ナット５８の雌ねじ部に締め付けることによって、押付部材３８により圧縮コイルばね３６をベース部材５０に押し付ける。 As shown in FIG. 3B, the pressing member 38 is in a state where the compression coil spring 36 is sandwiched between the pressing member 38 and the base member 50 made of a steel plate provided at the other end 54 of the brace body 16. The bolt member 40 is passed through the through-hole 56 formed in the above-described structure, and the end of the bolt member 40 is screwed into the female screw portion of the cap nut 58 provided on the fixing plate 42. That is, the bolt member 40 is attached to the base member 50 and the pressing member 38 to connect the base member 50 and the pressing member 38. Further, as shown in the side sectional view of FIG. 3C, the compression coil spring 36 is pressed against the base member 50 by the pressing member 38 by tightening the bolt member 40 to the female screw portion of the cap nut 58.
そして、図５の側断面図に示すように、柱梁接合部２８に連結ブロック４６を形成して柱梁接合部２８に押付部材３８を固定した後に、袋ナット５８の雌ねじ部に締め付けたボルト部材４０を緩めてベース部材５０と押付部材３８から取り外す。これによって、圧縮コイルばね３６の反発力で第２連結部２０からブレース本体１６へ軸圧縮力が付与されて、ボルト部材４０が取り外された第２連結部２０（押付部材３８）にブレース本体１６の他端部５４が圧着により連結され、他方の接合部としての柱梁接合部２８にブレース本体１６の他端部５４が連結される。 Then, as shown in the side cross-sectional view of FIG. 5, after the connecting block 46 is formed in the beam-column joint portion 28 and the pressing member 38 is fixed to the beam-column joint portion 28, the bolt tightened to the female screw portion of the cap nut 58. The member 40 is loosened and removed from the base member 50 and the pressing member 38. As a result, an axial compression force is applied from the second connecting portion 20 to the brace body 16 by the repulsive force of the compression coil spring 36, and the brace body 16 is applied to the second connecting portion 20 (the pressing member 38) from which the bolt member 40 is removed. The other end portion 54 of the brace body 16 is connected to the column beam joint portion 28 as the other joint portion.
次に、本発明の実施形態に係るブレースの取り付け方法について説明する。 Next, a method for attaching a brace according to an embodiment of the present invention will be described.
本実施形態のブレース１２を柱梁架構１４に取り付けるブレースの取り付け方法は、まず、図３（ａ）の側断面図に示すように、ラグスクリュー６０によってブレース本体１６の他端部５４にベース部材５０を固定する。 The method of attaching the brace for attaching the brace 12 of this embodiment to the column beam frame 14 is as follows. First, as shown in the side sectional view of FIG. 50 is fixed.
次に、図３（ｂ）の側断面図に示すように、圧縮コイルばね３６の先端部が固定プレート４２のブレース本体１６側の面４８から突出するようにして、筒状有底部材４４内に圧縮コイルばね３６を収容する。すなわち、押付部材３８に圧縮コイルばね３６を取り付ける。 Next, as shown in the side sectional view of FIG. 3B, the tip of the compression coil spring 36 protrudes from the brace body 16 side surface 48 of the fixed plate 42 so that the inside of the cylindrical bottomed member 44 The compression coil spring 36 is accommodated in the container. That is, the compression coil spring 36 is attached to the pressing member 38.
次に、図３（ｂ）の側断面図に示すように、ベース部材５０と押付部材３８の間に圧縮コイルばね３６を挟み込むようにして、ベース部材５０に対向させて押付部材３８を配置し、この状態で、ベース部材５０に形成された貫通孔５６にボルト部材４０を貫通させ、このボルト部材４０の端部を固定プレート４２に設けられた袋ナット５８の雌ねじ部に捩じ込む。すなわち、ベース部材５０及び押付部材３８にボルト部材４０を取り付けてベース部材５０と押付部材３８を繋ぐ。 Next, as shown in the side sectional view of FIG. 3B, the pressing member 38 is disposed so as to face the base member 50 so as to sandwich the compression coil spring 36 between the base member 50 and the pressing member 38. In this state, the bolt member 40 is passed through the through hole 56 formed in the base member 50, and the end portion of the bolt member 40 is screwed into the female screw portion of the cap nut 58 provided on the fixing plate 42. That is, the bolt member 40 is attached to the base member 50 and the pressing member 38 to connect the base member 50 and the pressing member 38.
次に、図３（ｃ）の側断面図に示すように、ボルト部材４０を袋ナット５８の雌ねじ部に締め付けることによって、押付部材３８により圧縮コイルばね３６をベース部材５０に押し付けて圧縮コイルばね３６を圧縮し、ベース部材５０に押付部材３８の固定プレート４２を密着させる。これによって、圧縮コイルばね３６に圧縮力が付与される。また、この状態で、ベース部材５０は、枠部材５２内に収容される。 Next, as shown in a side sectional view of FIG. 3C, the compression coil spring 36 is pressed against the base member 50 by the pressing member 38 by tightening the bolt member 40 to the female thread portion of the cap nut 58. 36 is compressed, and the fixing plate 42 of the pressing member 38 is brought into close contact with the base member 50. As a result, a compression force is applied to the compression coil spring 36. In this state, the base member 50 is accommodated in the frame member 52.
次に、図３（ｄ）の側面図に示すように、ブレース本体１６の一端部３０端面に形成された挿入孔６２と、接合部材３２の端面に形成された挿入孔６４とに、鋼製の連結ピン６６を挿入して、図３（ｅ）の側面図に示すように、ブレース本体１６の一端部３０に接合部材３２を接合する。 Next, as shown in the side view of FIG. 3D, the insertion hole 62 formed in the end surface of the one end 30 of the brace body 16 and the insertion hole 64 formed in the end surface of the joining member 32 are made of steel. The connecting pin 66 is inserted, and the joining member 32 is joined to the one end 30 of the brace body 16 as shown in the side view of FIG.
次に、図４（ａ）の立面図に示すように、エポキシ樹脂接着剤等の接着剤を接合部材３２の先端面に塗布し、この接着剤により形成された接着層３４によって接合部材３２を柱梁接合部２６に接着固定する。これにより、柱梁接合部２６にブレース本体１６の一端部３０が連結される。 Next, as shown in the elevation view of FIG. 4A, an adhesive such as an epoxy resin adhesive is applied to the front end surface of the joining member 32, and the joining member 32 is formed by the adhesive layer 34 formed by this adhesive. Is bonded and fixed to the beam-column joint 26. As a result, the one end 30 of the brace body 16 is coupled to the column beam joint 26.
次に、図４（ｂ）の立面図に示すように、柱梁接合部２８に型枠（不図示）を組み立ててこの型枠内に配筋し、この型枠内にモルタルを注入して柱梁接合部２８と押付部材３８の間に充填し、このモルタルを硬化させて連結ブロック４６を形成することにより柱梁接合部２８に押付部材３８を固定する。 Next, as shown in the elevation view of FIG. 4 (b), a formwork (not shown) is assembled to the beam-column joint portion 28 and the reinforcement is placed in this formwork, and mortar is injected into this formwork. Then, the space between the beam-to-column joint portion 28 and the pressing member 38 is filled, and the mortar is cured to form the connecting block 46, thereby fixing the pressing member 38 to the beam-to-column connection portion 28.
次に、図４（ｃ）の立面図、及び図５に示すように、柱梁接合部２８に押付部材３８を固定した後に、袋ナット５８の雌ねじ部に締め付けたボルト部材４０を緩めてベース部材５０と押付部材３８から取り外す。これによって、圧縮コイルばね３６の反発力により第２連結部２０からブレース本体１６へ軸圧縮力が付与されて、第２連結部２０にブレース本体１６の他端部５４が圧着により連結され、柱梁接合部２８にブレース本体１６の他端部５４が連結される。すなわち、図４（ｂ）及び図４（ｃ）では、第２連結部２０にブレース本体１６の他端部５４を連結し、第２連結部２０によりブレース本体１６へ軸圧縮力を付与した状態で、柱梁接合部２８に第２連結部２０を固定している。また、この状態で、ベース部材５０は、枠部材５２内に収容されている。枠部材５２は、ブレース１２に引張力が作用し圧縮コイルばね３６が伸びて、ベース部材５０と押付部材３８が設計により想定された最大距離だけ離れた場合において、ベース部材５０が枠部材５２内に収容されている高さになっている。 Next, as shown in the elevation view of FIG. 4C and FIG. 5, after fixing the pressing member 38 to the column beam joint portion 28, the bolt member 40 tightened to the female screw portion of the cap nut 58 is loosened. The base member 50 and the pressing member 38 are removed. As a result, an axial compression force is applied from the second connecting portion 20 to the brace body 16 by the repulsive force of the compression coil spring 36, and the other end portion 54 of the brace body 16 is connected to the second connecting portion 20 by pressure bonding. The other end portion 54 of the brace body 16 is connected to the beam joint portion 28. That is, in FIG. 4B and FIG. 4C, the other end portion 54 of the brace body 16 is connected to the second connection portion 20, and the axial compression force is applied to the brace body 16 by the second connection portion 20. Thus, the second connecting portion 20 is fixed to the column beam joint portion 28. In this state, the base member 50 is accommodated in the frame member 52. In the frame member 52, when the tensile force acts on the brace 12 and the compression coil spring 36 extends and the base member 50 and the pressing member 38 are separated from each other by the maximum distance assumed by the design, the base member 50 is in the frame member 52. It is the height that is housed in.
次に、本発明の実施形態に係るブレース、及びブレースの取り付け方法の作用と効果について説明する。 Next, operations and effects of the brace and the brace attaching method according to the embodiment of the present invention will be described.
本実施形態では、図４（ｃ）に示すように、地震時に柱梁架構１４がせん断変形して（梁２４Ｂに対して梁２４Ａが右方向６８へ相対移動して）ブレース１２に圧縮力が作用し、第２連結部２０の圧縮コイルばね３６が縮んだ状態になったときに、ブレース本体１６に圧縮力が作用しこの圧縮力にブレース本体１６が抵抗する。これによって、ブレース本体１６が圧縮ブレースとして機能し、ブレース１２が地震力を負担して柱梁架構１４の耐震性を向上させることができる。 In the present embodiment, as shown in FIG. 4C, the column beam frame 14 is shear-deformed during the earthquake (the beam 24A is moved relative to the beam 24B in the right direction 68), and the brace 12 is compressed. When the compression coil spring 36 of the second connecting portion 20 is in a contracted state, a compression force acts on the brace body 16 and the brace body 16 resists this compression force. Thereby, the brace body 16 functions as a compression brace, and the brace 12 can bear the seismic force and improve the earthquake resistance of the column beam frame 14.
また、図４（ｃ）に示すように、地震時に柱梁架構１４がせん断変形して（梁２４Ｂに対して梁２４Ｂが左方向７０へ相対移動して）ブレース１２に引張力が作用し、第２連結部２０の圧縮コイルばね３６が伸びた状態になったときにおいても、圧縮コイルばね３６の反発力で第２連結部２０からブレース本体１６へ軸圧縮力を付与して、第２連結部２０にブレース本体１６の他端部５４を圧着により連結し続け、柱梁接合部２８にブレース本体１６の他端部５４が連結されている状態を維持する。 Further, as shown in FIG. 4C, the column beam frame 14 is shear-deformed during the earthquake (the beam 24B moves relative to the beam 24B in the left direction 70), and a tensile force acts on the brace 12. Even when the compression coil spring 36 of the second connecting portion 20 is in the extended state, the repulsive force of the compression coil spring 36 applies an axial compressive force from the second connecting portion 20 to the brace body 16 so that the second connection The other end portion 54 of the brace body 16 is continuously connected to the portion 20 by pressure bonding, and the state where the other end portion 54 of the brace body 16 is connected to the column beam joint portion 28 is maintained.
さらに、本実施形態では、図３（ａ）〜（ｅ）、及び図４（ａ）〜（ｃ）に示すように、ブレース本体１６が木質で軽量なので、ブレース本体１６の持ち運び作業や取り付け作業を容易に行うことができる。すなわち、ブレース１２の施工手間を低減して柱梁架構１４を効果的に耐震補強することができる。さらに、ブレース本体１６を木質にすることによって有機的な意匠上の魅力を発揮し、仕上げ材を用いなくても無機的な鉄骨製のブレース等に比べて美観に優れたブレースを構成することができる。また、自然材料の使用による環境負荷低減に貢献することができる。 Further, in this embodiment, as shown in FIGS. 3A to 3E and FIGS. 4A to 4C, the brace body 16 is woody and lightweight, so that the brace body 16 is carried and attached. Can be easily performed. That is, it is possible to effectively seismically reinforce the column beam frame 14 by reducing the labor for installing the brace 12. Furthermore, by making the brace body 16 woody, it is possible to achieve an attractive organic design, and to form a brace that is more aesthetic than an inorganic steel brace without using a finishing material. it can. Moreover, it can contribute to the reduction of the environmental load due to the use of natural materials.
また、本実施形態では、図３（ｃ）に示すように、ボルト部材４０を袋ナット５８の雌ねじ部に締め付けて、押付部材３８によりベース部材５０に圧縮コイルばね３６を押し付けた状態にすることにより、圧縮コイルばね３６から発生する反発力を、ボルト部材４０によりベース部材５０（ブレース本体１６の他端部５４）に繋げられている押付部材３８が受ける。これにより、圧縮コイルばね３６から発生する反発力が押付部材３８からブレース本体１６の軸方向外側へ作用しないようになるので、柱梁接合部２８に押付部材３８を固定し易くすることができ、ブレース本体１６の他端部５４を柱梁接合部２８に着脱し易くすることができる。 Further, in this embodiment, as shown in FIG. 3C, the bolt member 40 is fastened to the female thread portion of the cap nut 58, and the compression coil spring 36 is pressed against the base member 50 by the pressing member 38. Thus, the repulsive force generated from the compression coil spring 36 is received by the pressing member 38 connected to the base member 50 (the other end portion 54 of the brace body 16) by the bolt member 40. Thereby, since the repulsive force generated from the compression coil spring 36 does not act on the outer side in the axial direction of the brace body 16 from the pressing member 38, the pressing member 38 can be easily fixed to the column beam joint portion 28. The other end portion 54 of the brace body 16 can be easily attached to and detached from the column beam joint portion 28.
このように本実施形態のブレース１２は、ブレース本体１６を軽量の木質とし、第２連結部２０によりブレース本体１６の他端部５４を柱梁接合部２８に着脱し易くしたものなので、ブレース１２の施工性を向上させ工期短縮を図ることができる。また、熟練した職能技術を有さない作業員でもブレース１２の取り付け作用や取り外し作業を行うことができる。さらに、ブレース１２の取り付け作業及び取り外し作業の手間を軽減することができるので、ブレース１２の取り付け位置の変更やブレース１２のメンテナンスを容易に行うことができる。また、後施工アンカー工事等の作業を必要としないので、ブレース１２の施工を低騒音や短工期で行うことができる。 As described above, the brace 12 of the present embodiment has the brace body 16 made of light wood and the second connecting portion 20 makes it easy to attach and detach the other end 54 of the brace body 16 to the column beam joint 28. The workability can be improved and the construction period can be shortened. In addition, even an operator who does not have skilled work skills can perform the operation of attaching and removing the brace 12. Furthermore, since the labor of attaching and removing the brace 12 can be reduced, the change of the attachment position of the brace 12 and the maintenance of the brace 12 can be easily performed. Further, since work such as post-installation anchor work is not required, the brace 12 can be constructed with low noise and a short construction period.
以上、本発明の実施形態について説明した。 The embodiment of the present invention has been described above.
なお、本実施形態では、図４（ａ）〜（ｃ）に示すように、鉄筋コンクリート造の建物１０の耐震改修工事において、ブレース１２を柱梁架構１４に設置して耐震補強を施した例を示したが、ブレース１２は、新築建物の耐震要素として用いてもよい。 In this embodiment, as shown in FIGS. 4A to 4C, in the earthquake-proof repair work of the reinforced concrete building 10, the brace 12 is installed on the column beam frame 14 and the earthquake-proof reinforcement is applied. Although shown, the braces 12 may be used as seismic elements in new buildings.
また、本実施形態では、図４（ｃ）に示すように、鉄筋コンクリート製の柱梁架構１４にブレース本体１６を設けた例を示したが、ブレース本体１６は、鉄筋コンクリート製、鉄骨製、鉄骨鉄筋コンクリート製等のさまざまな構造の架構に設けることができる。 Moreover, in this embodiment, as shown in FIG.4 (c), although the brace body 16 was provided in the column beam frame 14 made from reinforced concrete, the brace body 16 is made of reinforced concrete, steel, steel reinforced concrete. It can be provided on frames of various structures such as manufactured.
さらに、本実施形態では、１つのブレース１２を、柱梁架構１４の柱梁接合部２６、２８間に斜めに設けた例を示したが、図６の立面図に示すように、２つのブレース１２を交差するようにして柱梁架構１４の柱梁接合部２６、２８間に斜めに設けてもよい。図６では、柱梁架構１４の手前側と奥側にブレース１２がそれぞれ設けられている。このようにすれば、地震時に柱梁架構１４がせん断変形して、梁２４Ｂに対して梁２４Ａが右方向６８及び左方向７０の何れへ相対移動した場合においても、どちらかのブレース１２を圧縮ブレースとして機能させることができる。また、図７及び図８の立面図に示すように、柱梁架構１４に、２つのブレース１２をＶ字状や逆Ｖ字状に配置して設置しても、図６の場合と同様の効果を得ることができる。この場合、柱梁架構１４の接合部の一方は、梁２４Ａ、２４Ｂの中間部に設けられる。 Furthermore, in the present embodiment, an example in which one brace 12 is provided obliquely between the column beam joints 26 and 28 of the column beam frame 14 is shown. However, as shown in the elevation view of FIG. The brace 12 may be provided obliquely between the column beam joint portions 26 and 28 of the column beam frame 14 so as to intersect with each other. In FIG. 6, braces 12 are respectively provided on the near side and the far side of the column beam frame 14. In this way, even when the column beam frame 14 is sheared and deformed during an earthquake and the beam 24A moves relative to the beam 24B in either the right direction 68 or the left direction 70, either brace 12 is compressed. It can function as a brace. Further, as shown in the elevation views of FIGS. 7 and 8, even if two braces 12 are arranged in a V-shape or an inverted V-shape on the column beam frame 14, the same as in the case of FIG. The effect of can be obtained. In this case, one of the joint portions of the column beam frame 14 is provided at an intermediate portion between the beams 24A and 24B.
また、本実施形態では、ブレース本体１６を木材によって形成した例を示したが、ブレース本体１６は、木質部材であればよい。例えば、木材を長尺状に切削加工したひき板や小角材を、接着剤を用いて複数貼り合わせて形成した集成材によってブレース本体を構成してもよい。 Moreover, although the example which formed the brace main body 16 with the timber was shown in this embodiment, the brace main body 16 should just be a wooden member. For example, the brace body may be constituted by a laminated material formed by laminating a plurality of strips or small square materials obtained by cutting wood into a long shape using an adhesive.
さらに、本実施形態では、接合部材３２を木製とした例を示したが、モルタルや鋼材等の他の材料によって接合部材３２を形成してもよい。接合部材３２を木製にすれば、ブレース１２全体としての美観が高まるので好ましい。また、図９の側面図に示すように、接合部材３２を設けずに、ブレース本体１６の一端部３０を接着層３４を介して柱梁接合部２６に接着固定してもよい。この場合、第１連結部１８は、接着層３４によって構成される。 Furthermore, although the example which used the joining member 32 as the wooden was shown in this embodiment, you may form the joining member 32 with other materials, such as mortar and steel materials. If the joining member 32 is made of wood, the beauty of the brace 12 as a whole is enhanced, which is preferable. Further, as shown in the side view of FIG. 9, the one end 30 of the brace body 16 may be bonded and fixed to the column beam joint 26 via the adhesive layer 34 without providing the joining member 32. In this case, the first connecting portion 18 is configured by the adhesive layer 34.
また、本実施形態では、型枠内にモルタルを注入して連結ブロック４６を形成した例を示したが、連結ブロック４６は既製ブロックであってもよいし、木材等の他の材料によって形成してもよい。 In the present embodiment, an example in which mortar is injected into the mold to form the connection block 46 is shown. However, the connection block 46 may be a ready-made block or may be formed of other materials such as wood. May be.
さらに、本実施形態では、弾性部材を圧縮コイルばね３６とした例を示したが、反発力によって第２連結部２０からブレース本体１６へ軸圧縮力を付与できるものであればよく、例えば、弾性部材を弾性ゴム部材としてもよい。 Furthermore, in this embodiment, although the example which used the elastic member as the compression coil spring 36 was shown, what is necessary is just to be able to provide axial compression force from the 2nd connection part 20 to the brace main body 16 by repulsive force, for example, elastic The member may be an elastic rubber member.
また、第２連結部２０からブレース本体１６へ付与する軸圧縮力の大きさは、第２連結部２０のボルト部材４０をベース部材５０及び押付部材３８から取り外した状態で、地震時に引張力が作用しているブレース本体１６が柱梁架構１４から脱落しない大きさ（例えば、ブレース本体１６の重量の０．３倍程度）であればよい。よって、ブレース本体１６は、木質で軽量なので、ブレース本体１６へ付与する軸圧縮力を小さくできる。例えば、第２連結部２０のような、ボルト部材４０により軸圧縮力をブレース本体１６へ付与する簡易な方法を用いることができる。 Further, the magnitude of the axial compression force applied from the second connecting portion 20 to the brace body 16 is such that the tensile force is applied during an earthquake in a state where the bolt member 40 of the second connecting portion 20 is removed from the base member 50 and the pressing member 38. The size of the brace body 16 that is acting may be a size that does not fall off the column beam frame 14 (for example, about 0.3 times the weight of the brace body 16). Therefore, since the brace body 16 is woody and lightweight, the axial compression force applied to the brace body 16 can be reduced. For example, a simple method of applying an axial compression force to the brace body 16 by the bolt member 40 such as the second connecting portion 20 can be used.
さらに、第２連結部２０は、圧縮コイルばね３６から発生する反発力が押付部材３８からブレース本体１６の軸方向外側へ作用しない状態と作用する状態に切り換えることができ、圧縮コイルばね３６から発生する反発力が押付部材３８からブレース本体１６の軸方向外側へ作用する状態で圧縮コイルばね３６の反発力で第２連結部２０からブレース本体１６へ軸圧縮力を付与できる機構のものであればよい。 Furthermore, the second connecting portion 20 can be switched between a state where the repulsive force generated from the compression coil spring 36 does not act on the outer side in the axial direction of the brace body 16 from the pressing member 38 and a state where it acts. Any mechanism that can apply an axial compression force from the second connecting portion 20 to the brace body 16 by a repulsive force of the compression coil spring 36 in a state where the repulsive force acting on the pressing member 38 acts on the outer side in the axial direction of the brace body 16. Good.
また、本実施形態では、ブレース本体１６の上端部（一端部３０）に第１連結部１８を設け、ブレース本体１６の下端部（他端部５４）に第２連結部２０を設けた例を示したが、ブレース本体１６の上端部（一端部３０）に第２連結部２０を設け、ブレース本体１６の下端部（他端部５４）に第１連結部１８を設けてもよい。 Moreover, in this embodiment, the example which provided the 1st connection part 18 in the upper end part (one end part 30) of the brace main body 16, and provided the 2nd connection part 20 in the lower end part (other end part 54) of the brace main body 16 is provided. Although shown, the 2nd connection part 20 may be provided in the upper end part (one end part 30) of the brace body 16, and the 1st connection part 18 may be provided in the lower end part (other end part 54) of the brace body 16.
さらに、本実施形態では、鉄筋コンクリート造の建物１０にブレース１２を適用した例を示したが、本実施形態のブレース１２は、鉄筋コンクリート造、鉄骨造、鉄骨鉄筋コンクリート造、ＣＦＴ造（Concrete-Filled Steel Tube：充填形鋼管コンクリート構造）、それらの混合構造など、さまざまな構造や規模の建物に対して適用することができる。 Further, in the present embodiment, an example in which the brace 12 is applied to the reinforced concrete building 10 is shown. However, the brace 12 of the present embodiment may be a reinforced concrete structure, a steel structure, a steel reinforced concrete structure, a CFT structure (Concrete-Filled Steel Tube). : Filled steel pipe concrete structure), and their mixed structure, and can be applied to buildings of various structures and scales.
以上、本発明の実施形態について説明したが、本発明はこうした実施形態に何等限定されるものでなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment at all, Of course, in the range which does not deviate from the summary of this invention, it can implement in a various aspect.
１２ ブレース
１４ 柱梁架構（架構）
１６ ブレース本体
１８ 第１連結部
２０ 第２連結部
２６、２８ 柱梁接合部（接合部）
３０ 一端部
３６ 圧縮コイルばね（弾性部材）
３８ 押付部材
４０ ボルト部材
５０ ベース部材
５４ 他端部
12 Braces 14 Pillar beam frame (frame)
16 Brace body 18 First connecting portion 20 Second connecting portion 26, 28 Column beam joint (joint)
30 End portion 36 Compression coil spring (elastic member)
38 Pressing member 40 Bolt member 50 Base member 54 Other end
Claims (3)
一方の前記接合部に前記ブレース本体の一端部を連結する第１連結部と、
他方の前記接合部に固定され、前記ブレース本体の他端部が連結されるとともに前記ブレース本体へ軸圧縮力を付与する第２連結部と、
を有するブレース。 A wooden brace body provided between the joints of the frame;
A first connecting portion for connecting one end of the brace body to one of the joint portions;
A second connecting portion fixed to the other joining portion, the other end portion of the brace body being connected, and applying an axial compression force to the brace body;
With braces.
弾性部材と、
前記ブレース本体の他端部に設けられたベース部材との間に前記弾性部材を挟み込み、他方の前記接合部に固定される押付部材と、
前記ベース部材及び前記押付部材に取り付けて前記ベース部材と前記押付部材を繋ぎ、締め付けによって前記押付部材により前記弾性部材を前記ベース部材に押し付け、他方の前記接合部に前記押付部材を固定した後に取り外して他方の前記接合部に前記ブレース本体の他端部を連結するボルト部材と、
を有する請求項１に記載のブレース。 The second connecting part is
An elastic member;
A pressing member sandwiched between the elastic member and a base member provided at the other end of the brace body, and fixed to the other joint;
The base member and the pressing member are attached to the base member and the pressing member, the elastic member is pressed against the base member by the pressing member by tightening, and the pressing member is fixed to the other joint portion and then removed. A bolt member connecting the other end portion of the brace body to the other joint portion;
The brace of claim 1 having
前記ブレース本体の一端部を一方の前記接合部に連結する工程と、
前記第２連結部に前記ブレース本体の他端部を連結し前記第２連結部により前記ブレース本体へ軸圧縮力を付与した状態で、他方の前記接合部に前記第２連結部を固定する工程と、
を有するブレースの取り付け方法。 The method of attaching a brace according to claim 1,
Connecting one end of the brace body to one of the joints;
A step of connecting the other end portion of the brace body to the second connection portion and fixing the second connection portion to the other joint portion in a state where an axial compression force is applied to the brace body by the second connection portion. When,
A method of attaching a brace comprising:
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| JP2014015425A JP6322429B2 (en) | 2014-01-30 | 2014-01-30 | Braces and methods of attaching braces |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605052A (en) * | 2017-11-16 | 2018-01-19 | 华北理工大学 | Prefabricated assembled concrete-filled steel square tubular column member connecting structure and its construction method |
| CN107700706A (en) * | 2017-11-10 | 2018-02-16 | 东北林业大学 | A kind of novel compression bar drag-line steel bamboo compound shear wall |
| CN108867857A (en) * | 2018-09-07 | 2018-11-23 | 沈阳建筑大学 | A kind of assembly Braced Frames structure with function of seismic resistance |
| JP7448742B2 (en) | 2020-04-15 | 2024-03-13 | センクシア株式会社 | Column base structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09256466A (en) * | 1996-01-17 | 1997-09-30 | Sakaki Kogyo:Kk | Expandable/shrinkable brace |
| JP2010156125A (en) * | 2008-12-26 | 2010-07-15 | Takenaka Komuten Co Ltd | Brace |
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2014
- 2014-01-30 JP JP2014015425A patent/JP6322429B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09256466A (en) * | 1996-01-17 | 1997-09-30 | Sakaki Kogyo:Kk | Expandable/shrinkable brace |
| JP2010156125A (en) * | 2008-12-26 | 2010-07-15 | Takenaka Komuten Co Ltd | Brace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700706A (en) * | 2017-11-10 | 2018-02-16 | 东北林业大学 | A kind of novel compression bar drag-line steel bamboo compound shear wall |
| CN107605052A (en) * | 2017-11-16 | 2018-01-19 | 华北理工大学 | Prefabricated assembled concrete-filled steel square tubular column member connecting structure and its construction method |
| CN107605052B (en) * | 2017-11-16 | 2023-05-26 | 华北理工大学 | Prefabricated assembled square steel pipe concrete column component connecting structure and construction method thereof |
| CN108867857A (en) * | 2018-09-07 | 2018-11-23 | 沈阳建筑大学 | A kind of assembly Braced Frames structure with function of seismic resistance |
| JP7448742B2 (en) | 2020-04-15 | 2024-03-13 | センクシア株式会社 | Column base structure |
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|---|---|
| JP6322429B2 (en) | 2018-05-09 |
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