JP2020059968A - Brace joint structure - Google Patents
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- JP2020059968A JP2020059968A JP2018189455A JP2018189455A JP2020059968A JP 2020059968 A JP2020059968 A JP 2020059968A JP 2018189455 A JP2018189455 A JP 2018189455A JP 2018189455 A JP2018189455 A JP 2018189455A JP 2020059968 A JP2020059968 A JP 2020059968A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 239000011440 grout Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
Description
本発明は、ブレースの接合構造に関する。 The present invention relates to a brace joint structure.
下記特許文献１には、既存建物の柱に対してグラウトを用いて半割鋼管を接合した構造が記載されている。そして、この半割鋼管にブレースを接合している。 Patent Document 1 below describes a structure in which a half steel pipe is joined to a pillar of an existing building by using a grout. And a brace is joined to this half steel pipe.
上記特許文献１に記載されているように既存建物にブレースを接合する際、グラウト等の湿式工法を用いると、グラウトが硬化するまで時間がかかる。また、一旦グラウトが硬化すると、接着された部材同士の位置を調整することが難しい。 When a brace is joined to an existing building as described in Patent Document 1 described above, if a wet method such as grout is used, it takes time for the grout to cure. Also, once the grout hardens, it is difficult to adjust the position of the bonded members.
本発明は上記事実を考慮して、湿式工法を用いないブレースの接合構造を提供することを目的とする。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a joint structure for braces that does not use a wet method.
請求項１のブレースの接合構造は、長尺部材と、中央部が前記長尺部材を挟み込み、両端部が互いに接合された一対の接合部材と、前記端部にボルト接合されたブレースと、前記長尺部材と前記中央部とを貫通する棒材と、を備えている。 The brace joining structure according to claim 1, wherein a long member, a pair of joining members having a central portion sandwiching the long member, and both ends joined to each other, a brace joined to the ends by bolts, A long member and a bar member penetrating the central portion are provided.
請求項１のブレースの接合構造によると、長尺部材に、接合部材を介してブレースが接合されている。接合部材とブレースとはボルト接合され、また、長尺部材と接合部材には棒材が貫通している。このため、湿式工法を用いずに長尺部材とブレースとを接合できる。 According to the brace joint structure of the first aspect, the brace is joined to the long member via the joint member. The joining member and the brace are bolted to each other, and the rod member penetrates the long member and the joining member. Therefore, the long member and the brace can be joined without using the wet method.
また、長尺部材に作用した引張力及び圧縮力は、棒材を介して接合部材及びブレースへ伝達される。これによりブレースは長尺部材を補強することができる。 Further, the tensile force and the compressive force acting on the long member are transmitted to the joining member and the brace via the rod member. Thereby, the brace can reinforce the long member.
請求項２のブレースの接合構造は、請求項１に記載のブレースの接合構造において、前記長尺部材は円形鋼管とされている。 A brace joint structure according to a second aspect is the brace joint structure according to the first aspect, wherein the elongated member is a circular steel pipe.
請求項２のブレースの接合構造によると、円形鋼管と接合部材とに棒材が通されている。これにより、鋼管が円形であっても、接合部材が鋼管の周囲で回転することを抑制できる。 According to the brace joint structure of the second aspect, the rod member is passed through the circular steel pipe and the joint member. Thereby, even if the steel pipe is circular, the joining member can be prevented from rotating around the steel pipe.
これに対して、例えば円形鋼管と接合部材とを接着材又はグラウト剤で固定する場合、接着材又はグラウト剤が硬化するまでの間、接合部材が回転しないように、治具などを用いて円形鋼管と接合部材とを固定する必要がある。 On the other hand, for example, when fixing a circular steel pipe and a joining member with an adhesive or a grouting agent, a circular jig is used to prevent the joining member from rotating until the adhesive or the grouting agent is cured. It is necessary to fix the steel pipe and the joining member.
請求項３のブレースの接合構造は、請求項１又は２に記載のブレースの接合構造において、前記接合部材には、前記中央部から前記両端部に亘ってリブプレートが取付けられている。 A brace joint structure according to a third aspect is the brace joint structure according to the first or second aspect, wherein a rib plate is attached to the joint member from the central portion to the both end portions.
請求項３のブレースの接合構造によると、接合部材にリブプレートが取付けられているため、接合部材の変形を抑制できる。 According to the brace joint structure of the third aspect, since the rib plate is attached to the joint member, deformation of the joint member can be suppressed.
本発明に係るブレースの接合構造によると、湿式工法を用いずにブレースを接合することができる。 According to the brace joint structure of the present invention, the brace can be joined without using the wet method.
（ブレースの接合構造）
本発明の実施形態に係るブレースの接合構造は、図１（Ａ）、（Ｂ）に示す構造物１０とブレース２０との接合部の構造である。構造物１０は、図１（Ｂ）に示すように、鋼製の柱１２にトラス梁１４が架け渡された架構によって形成されている。この架構は、図１（Ａ）に示すようにＸ方向及びＸ方向と略直交する方向にそれぞれ間隔を空けて複数配置されている。なお、図１（Ａ）においては、破断線Ｖより下方にブレース２０の設置前の状態が示されており、上方にブレース２０の設置後の状態が示されている。
(Brace joint structure)
The brace joint structure according to the embodiment of the present invention is the structure of the joint portion between the structure 10 and the brace 20 shown in FIGS. 1 (A) and 1 (B). As shown in FIG. 1B, the structure 10 is formed by a frame structure in which a truss beam 14 is bridged over a steel column 12. As shown in FIG. 1A, a plurality of the frames are arranged at intervals in the X direction and the direction substantially orthogonal to the X direction. Note that, in FIG. 1A, the state before the brace 20 is installed is shown below the breaking line V, and the state after the brace 20 is installed is shown above the break line V.
ブレース２０は、図１（Ｂ）に示すトラス梁１４の上弦材である鋼管１４Ａが配置された水平構面に構築される補強構造である。鋼管１４Ａは、円筒状に形成されている。なお、鋼管１４Ａは本発明における長尺部材の一例である。 The brace 20 is a reinforcing structure constructed on a horizontal construction surface on which the steel pipe 14A, which is the upper chord member of the truss beam 14 shown in FIG. 1 (B), is arranged. The steel pipe 14A is formed in a cylindrical shape. The steel pipe 14A is an example of the long member in the present invention.
図２、図３には、鋼管１４Ａにブレース２０を接合した状態が示されている。なお、図２は図１（Ａ）において破線で囲んで示した接合部Ｐ１の拡大図であり、図３は図２におけるＡ−Ａ線断面図である。これらの図に示すように、鋼管１４Ａとブレース２０とは、接合部材３０を介して接合されている。ブレース２０はＰＣ鋼棒によって形成され、ＰＣ鋼棒の端部に溶接された羽子板２２が接合部材３０におけるフランジ３４にボルト４０Ａで固定されている。 2 and 3 show a state in which the brace 20 is joined to the steel pipe 14A. 2 is an enlarged view of the joint P1 surrounded by a broken line in FIG. 1A, and FIG. 3 is a sectional view taken along the line AA in FIG. As shown in these figures, the steel pipe 14 </ b> A and the brace 20 are joined via a joining member 30. The brace 20 is formed of a PC steel rod, and the battledore plate 22 welded to the end of the PC steel rod is fixed to the flange 34 of the joining member 30 with a bolt 40A.
図４（Ａ）には、図３における接合部材３０の拡大図が示されている。また、図４（Ｂ）には、接合部材３０の断面図（図２にＢ−Ｂ線で示す断面）が示されている。さらに図５には、図４（Ｂ）と直交する方向の断面図（図２にＣ−Ｃ線で示す断面）が示されている。 FIG. 4 (A) shows an enlarged view of the joining member 30 in FIG. Further, FIG. 4B shows a cross-sectional view of the joining member 30 (a cross section taken along the line BB in FIG. 2). Further, FIG. 5 shows a cross-sectional view (a cross section taken along line CC in FIG. 2) in a direction orthogonal to FIG.
図５に示すように、接合部材３０は、鋼管１４Ａを上下から挟み込む一対の接合部材３０Ａ、３０Ｂを備えている。接合部材３０Ａ、３０Ｂはそれぞれ、中央部に形成された半割円形の挟持部３２と、挟持部３２の両端から鋼管１４Ａの径方向外側へ向かって突出したフランジ３４と、を備えている。 As shown in FIG. 5, the joining member 30 includes a pair of joining members 30A and 30B that sandwich the steel pipe 14A from above and below. Each of the joining members 30A and 30B includes a half-circular sandwiching portion 32 formed in the central portion, and a flange 34 protruding from both ends of the sandwiching portion 32 toward the radially outer side of the steel pipe 14A.
挟持部３２は鋼管１４Ａの外形に沿う形状とされ、上下に配置された接合部材３０Ａ、３０Ｂにおけるそれぞれの挟持部３２の両端は互いに接触している。 The sandwiching portion 32 has a shape that follows the outer shape of the steel pipe 14A, and both ends of each sandwiching portion 32 of the joining members 30A and 30B arranged above and below are in contact with each other.
フランジ３４は、挟持部３２の両端から鋼管１４Ａの径方向外側、かつ、ブレース２０及び羽子板２２の延設方向に沿う方向へ突出し、接合部材３０Ａ、３０Ｂにおけるそれぞれのフランジ３４は、互いにボルト４０Ａ、４０Ｂで接合されている。 The flanges 34 project from both ends of the holding portion 32 in the radial direction outside of the steel pipe 14A and in the direction along the extending direction of the braces 20 and the battledore plates 22, and the respective flanges 34 of the joining members 30A and 30B are bolts 40A, mutually. It is joined at 40B.
なお、ボルト４０Ａは、接合部材３０Ａ、３０Ｂ及び羽子板２２を貫通して接合するボルトであり、ボルト４０Ｂは、接合部材３０Ａ及び３０Ｂを貫通して接合するボルトである。 The bolt 40A is a bolt that penetrates and joins the joining members 30A and 30B and the battledore 22, and the bolt 40B is a bolt that penetrates and joins the joining members 30A and 30B.
なお、図４（Ａ）、（Ｂ）、図５において鋼管１４Ａと挟持部３２とは隙間無く配置されているが、製造誤差等を考慮して適宜隙間を設けることができる。また、この隙間には、スペーサ等を配置することができる。 Although the steel pipe 14A and the sandwiching portion 32 are arranged without a gap in FIGS. 4A, 4B, and 5, a gap may be provided as appropriate in consideration of manufacturing error and the like. Further, a spacer or the like can be arranged in this gap.
また、図４（Ａ）、（Ｂ）、図５において上下の接合部材３０Ａ、３０Ｂにおけるそれぞれのフランジ３４は隙間無く配置されているが、これらのフランジ３４間にはスペーサを配置することができる。但しフランジ３４同士を高力ボルトを用いて接合する場合、摩擦力を得るためにスペーサは鋼材を用いる事が好ましい。 Further, in FIGS. 4A, 4B, and 5, the respective flanges 34 of the upper and lower joining members 30A and 30B are arranged without a gap, but a spacer can be arranged between these flanges 34. . However, when the flanges 34 are joined together by using high-strength bolts, it is preferable to use a steel material for the spacer in order to obtain a frictional force.
鋼管１４Ａと接合部材３０とは、本発明における棒材の一例である通しボルト４２を用いて接合されている。通しボルト４２は、鋼管１４Ａにおける上下端部にそれぞれ形成された貫通孔１４ＡＨと、上下の接合部材３０Ａ、３０Ｂにおいて貫通孔１４ＡＨと対応する位置へそれぞれ設けられた貫通孔３０Ｈと、を貫通している。また、通しボルト４２は、鋼管１４Ａの延設方向に沿って２箇所設けられている。 The steel pipe 14A and the joining member 30 are joined together by using a through bolt 42 which is an example of a bar material in the present invention. The through bolt 42 penetrates through holes 14AH formed at the upper and lower ends of the steel pipe 14A and through holes 30H provided at positions corresponding to the through holes 14AH in the upper and lower joining members 30A and 30B, respectively. There is. The through bolts 42 are provided at two locations along the extending direction of the steel pipe 14A.
接合部材３０には、挟持部３２からフランジ３４に亘ってリブプレート３６が接合されている。リブプレート３６は、鋼管１４Ａの延設方向と略直交し、かつ、鋼管１４Ａの径方向外側へ突出し、挟持部３２の外周面及びフランジ３４の外周面に溶接されている。 A rib plate 36 is joined to the joining member 30 from the holding portion 32 to the flange 34. The rib plate 36 is substantially orthogonal to the extending direction of the steel pipe 14A, protrudes outward in the radial direction of the steel pipe 14A, and is welded to the outer peripheral surface of the sandwiching portion 32 and the outer peripheral surface of the flange 34.
（作用・効果）
図２に示すように、本発明の実施形態に係るブレースの接合構造によると、鋼管１４Ａに、接合部材３０を介してブレース２０が接合される。接合部材３０とブレース２０における羽子板２２とは、ボルト４０Ａによって接合されている。また、鋼管１４Ａと接合部材３０とは通しボルト４２によって接合されている。このため、湿式工法を用いずに鋼管１４Ａとブレース２０とを接合できる。
(Action / effect)
As shown in FIG. 2, according to the brace joining structure according to the embodiment of the present invention, the brace 20 is joined to the steel pipe 14A via the joining member 30. The joining member 30 and the battledore 22 of the brace 20 are joined by a bolt 40A. Further, the steel pipe 14A and the joining member 30 are joined by a through bolt 42. Therefore, the steel pipe 14A and the brace 20 can be joined without using the wet method.
また、鋼管１４Ａに作用した引張力及び圧縮力は、通しボルト４２を介して接合部材３０及びブレース２０へ伝達される。これによりブレース２０は鋼管１４Ａを補強することができる。なお、通しボルト４２は、鋼管１４Ａと接合部材３０との間で、せん断耐力を発揮して力を伝達する。 Further, the tensile force and the compressive force acting on the steel pipe 14A are transmitted to the joining member 30 and the brace 20 via the through bolt 42. Thereby, the brace 20 can reinforce the steel pipe 14A. The through bolt 42 exerts shear resistance between the steel pipe 14A and the joining member 30 and transmits the force.
また、本発明の実施形態に係るブレースの接合構造によると、鋼管１４Ａは円形鋼管とされているが、通しボルト４２によって接合部材３０の回転を抑制できる。 Further, according to the brace joint structure according to the embodiment of the present invention, the steel pipe 14A is a circular steel pipe, but the rotation of the joint member 30 can be suppressed by the through bolt 42.
すなわち、鋼管１４Ａに対してブレース２０を接合する際、まず、図４（Ａ）、（Ｂ）、図５に示す接合部材３０Ａ、３０Ｂで鋼管１４Ａを挟み込む。この際、ボルト４０Ｂで接合部材３０Ａ、３０Ｂを接合する。さらに通しボルト４２で各接合部材３０Ａ、３０Ｂと鋼管１４Ａとを接合及び固定する。この際、接合部材３０が鋼管１４Ａの周囲で回転しない。 That is, when joining the brace 20 to the steel pipe 14A, first, the steel pipe 14A is sandwiched by the joining members 30A and 30B shown in FIGS. 4A, 4B, and 5. At this time, the joining members 30A and 30B are joined with the bolt 40B. Further, the joining members 30A and 30B and the steel pipe 14A are joined and fixed with the through bolts 42. At this time, the joining member 30 does not rotate around the steel pipe 14A.
このため、接合部材３０におけるフランジ３４にボルト４０Ａを用いてブレース２０の羽子板２２を接合する際の作業性がよい。また、通しボルト４２は仮締めとし、ブレース２０の設置後本締めすることで、鋼管１４Ａとブレース２０との建て方精度を向上できる。 Therefore, workability when joining the battledore 22 of the brace 20 to the flange 34 of the joining member 30 using the bolt 40A is good. Further, the through bolts 42 are temporarily tightened, and after the brace 20 is installed, the bolts are fully tightened, so that the accuracy of erection of the steel pipe 14A and the brace 20 can be improved.
これに対して、例えば鋼管と接合部材とを接着材又はグラウト剤などの湿式工法で固定する場合、接着材又はグラウト剤が硬化するまでの間、接合部材が回転しないように、治具などを用いて鋼管と接合部材とを固定する必要がある。また、接着材又はグラウト剤が硬化後、鋼管とブレース２０との建て方を調整することは難しい。 On the other hand, for example, when fixing the steel pipe and the joining member by a wet method such as an adhesive or a grout agent, a jig or the like is used so that the joining member does not rotate until the adhesive or the grout agent cures. It is necessary to fix the steel pipe and the joining member by using. Further, it is difficult to adjust the way of building the steel pipe and the brace 20 after the adhesive material or the grout agent is hardened.
また、本発明の実施形態に係るブレースの接合構造によると、接合部材３０にリブプレート３６が取付けられている。リブプレート３６は、挟持部３２からフランジ３４に亘って接合されている。このため、リブプレート３６の面内方向に沿う接合部材３０の変形が抑制される。これにより、ブレース２０の面外方向に対する外力に対して接合部材３０が変形し難い。これにより、例えば図１（Ａ）、（Ｂ）に示す構造物１０に屋根を葺く場合等において、風の吹き上げに対する耐力を得ることができる。なお、このリブプレート３６は、適宜省略してもよい。 Further, according to the brace joint structure according to the embodiment of the present invention, the rib plate 36 is attached to the joint member 30. The rib plate 36 is joined from the holding portion 32 to the flange 34. Therefore, the deformation of the joining member 30 along the in-plane direction of the rib plate 36 is suppressed. This makes it difficult for the joining member 30 to be deformed by the external force of the brace 20 in the out-of-plane direction. Thus, for example, when the roof is roofed on the structure 10 shown in FIGS. 1A and 1B, it is possible to obtain a proof stress against blowing up of wind. The rib plate 36 may be omitted as appropriate.
なお、上記の説明においては、挟持部３２の両側のフランジ３４において、片方のフランジ３４のみにブレース２０が接合されているが、本発明の実施形態はこれに限らない。例えば図１（Ａ）において破線で囲んで示した接合部Ｐ２のように、鋼管１４Ａの両側にブレース２０を接合する際は、両側のフランジ３４のそれぞれにブレース２０を接合することができる。 In the above description, the braces 20 are joined to only one of the flanges 34 on both sides of the holding portion 32, but the embodiment of the present invention is not limited to this. For example, when the brace 20 is joined to both sides of the steel pipe 14A as in the joint P2 surrounded by a broken line in FIG. 1A, the brace 20 can be joined to each of the flanges 34 on both sides.
また、本実施形態において鋼管１４Ａは円形鋼管とされているが、本発明の実施形態はこれに限らない。例えば角型鋼管で形成してもよい。この場合、接合部材３０における挟持部３２の形状を、適宜変更すればよい。角型鋼管に対しても、接合部材３０を介してブレース２０を接合することができる。 Further, although the steel pipe 14A is a circular steel pipe in the present embodiment, the embodiment of the present invention is not limited to this. For example, a square steel pipe may be used. In this case, the shape of the holding portion 32 of the joining member 30 may be changed as appropriate. The brace 20 can be joined to the rectangular steel pipe through the joining member 30.
また、本発明における長尺部材は、鋼管の他、木製梁、鉄筋コンクリート製の梁とすることができる。このような梁部材とこれらを挟み込む接合部材とを通しボルトで接合すれば、ブレース２０を設置することができる。 Further, the long member in the present invention can be a wooden beam or a reinforced concrete beam in addition to the steel pipe. The braces 20 can be installed by joining such beam members and joining members sandwiching these beam members with through bolts.
さらに長尺部材としては、横方向に延設されるトラス梁１４の上弦材（鋼管１４Ａ）や梁部材だけではなく、上下方向に延設される柱部材とすることができる。柱部材としては、鋼管柱、木製柱、鉄筋コンクリート製の柱等、各種の構造種別を適用可能である。このように、本発明は様々な態様で実施できる。 Further, as the long member, not only the upper chord member (steel pipe 14A) of the truss beam 14 extending in the lateral direction or the beam member but also the column member extending in the vertical direction can be used. Various structural types such as steel pipe columns, wooden columns, and columns made of reinforced concrete can be applied as the column members. Thus, the present invention can be implemented in various ways.
１４Ａ 鋼管（長尺部材）
２０ ブレース
３０ 接合部材
３０Ａ 接合部材
３０Ｂ 接合部材
３２ 挟持部（中央部）
３４ フランジ（端部）
３６ リブプレート
４０Ａ ボルト
４２ 通しボルト（棒材）
14A steel pipe (long member)
20 brace 30 joining member 30A joining member 30B joining member 32 sandwiching portion (central portion)
34 Flange (end)
36 Rib plate 40A Bolt 42 Through bolt (bar material)
Claims (3)
中央部が前記長尺部材を挟み込み、両端部が互いに接合された一対の接合部材と、
前記端部にボルト接合されたブレースと、
前記長尺部材と前記中央部とを貫通する棒材と、
を備えたブレースの接合構造。 Long member,
A pair of joining members in which the central portion sandwiches the long member, and both end portions are joined to each other,
A brace bolted to the end,
A bar member penetrating the elongated member and the central portion,
Brace joint structure with.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018189455A JP7163560B2 (en) | 2018-10-04 | 2018-10-04 | Brace joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018189455A JP7163560B2 (en) | 2018-10-04 | 2018-10-04 | Brace joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2020059968A true JP2020059968A (en) | 2020-04-16 |
| JP7163560B2 JP7163560B2 (en) | 2022-11-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7434067B2 (en) | 2020-06-05 | 2024-02-20 | 株式会社竹中工務店 | steel building |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548915U (en) * | 1978-09-28 | 1980-03-31 | ||
| JPH0484677U (en) * | 1990-11-30 | 1992-07-23 | ||
| JPH09291592A (en) * | 1996-02-26 | 1997-11-11 | Nkk Corp | Column beam brace connection metallic material |
| JPH11343668A (en) * | 1998-05-29 | 1999-12-14 | Toda Constr Co Ltd | Support structure of wooden column |
| JP2007303066A (en) * | 2006-05-08 | 2007-11-22 | Takenaka Komuten Co Ltd | Existing trussed frame reinforcing structure |
-
2018
- 2018-10-04 JP JP2018189455A patent/JP7163560B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5548915U (en) * | 1978-09-28 | 1980-03-31 | ||
| JPH0484677U (en) * | 1990-11-30 | 1992-07-23 | ||
| JPH09291592A (en) * | 1996-02-26 | 1997-11-11 | Nkk Corp | Column beam brace connection metallic material |
| JPH11343668A (en) * | 1998-05-29 | 1999-12-14 | Toda Constr Co Ltd | Support structure of wooden column |
| JP2007303066A (en) * | 2006-05-08 | 2007-11-22 | Takenaka Komuten Co Ltd | Existing trussed frame reinforcing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7434067B2 (en) | 2020-06-05 | 2024-02-20 | 株式会社竹中工務店 | steel building |
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| JP7163560B2 (en) | 2022-11-01 |
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