JP3000046B2 - Connection of steel structure and its manufacturing method - Google Patents
Connection of steel structure and its manufacturing methodInfo
- Publication number
- JP3000046B2 JP3000046B2 JP20569091A JP20569091A JP3000046B2 JP 3000046 B2 JP3000046 B2 JP 3000046B2 JP 20569091 A JP20569091 A JP 20569091A JP 20569091 A JP20569091 A JP 20569091A JP 3000046 B2 JP3000046 B2 JP 3000046B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- annular body
- column
- steel column
- gusset plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、柱が鋼管コンクリー
ト構造の構造体の仕口およびその製作法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection of a steel pipe-concrete structure and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】従来の閉鎖型断面の鉄骨柱を使った鉄骨
構造体の仕口１には、たとえば、図８から図１４に示す
構造のものがある。図８および図９に示すものは、横断
面が円形の鋼管を切断して、建物の階高に等しい長さの
柱部２ａ1、２ａ2と、仕口の上下方向の長さに略等しい
長さの短い柱体２ｂとを作り、鋼板を加工してダイヤフ
ラム３Ａ、３Ｂを作り、長い柱部２ａ1の上端をダイヤ
フラム３Ｂの下面に突合せ溶接し、短い柱体２ｂの下端
をダイヤフラム３Ｂの上面に突合せ溶接し、短い柱体２
ｂの上端をダイヤフラム３Ａの下面に突合せ溶接し、長
い柱部２ａ2の下端をダイヤフラム３Ａの上面に突合せ
溶接し、各ダイヤフラム３Ａ、３Ｂの所定の辺３ａに鉄
骨梁４のフランジ４ａを突合せ溶接し、梁４のウェブ４
ｂを短い柱体２ｂの周面に溶接して鉄骨構造体の仕口１
を形成するものである。図１０および図１１に示すもの
は、図８および図９に示すものと同様に、横断面が円形
の鋼管を切断して、長い柱部２ａ1、２ａ2および短い柱
体２ｂとし、かつ鋼材を鍛造して環状体５Ａ、５Ｂを形
成し、長い柱部２ａ1の上端を環状体５Ａの下面に突合
せ溶接し、短い柱体２ｂの下端を環状体５Ａの上面に突
合せ溶接し、短い柱体２ｂの上端を環状体５Ｂの下面に
突合せ溶接し、長い柱部２ａ2の下端を環状体５Ｂの上
面に突合せ溶接し、各環状体５Ａ、５Ｂの周囲の所望位
置を切断して辺５ａを形成し、この辺５ａに梁３のフラ
ンジ３ａを突合せ溶接して、梁３のウェブ３ｂを短い柱
体２ｂの周面に溶接して鉄骨構造体の仕口１を形成する
ものである。2. Description of the Related Art Conventionally, a connection 1 of a steel structure using a steel column having a closed cross section has a structure shown in FIGS. 8 to 14, for example. 8 and FIG. 9 are obtained by cutting a steel pipe having a circular cross section to form pillars 2a 1 and 2a 2 having a length equal to the floor height of a building, and a length substantially equal to the vertical length of the connection. making a short columnar body 2b lengths, the diaphragm 3A by processing a steel plate, make 3B, long the upper end of the pillar portion 2a 1 and butt welded to the underside of the diaphragm 3B, a short cylindrical body 2b lower end of diaphragm 3B Butt-welded to the top, short column 2
b is butt-welded to the lower surface of the diaphragm 3A, the lower end of the long column 2a 2 is butt-welded to the upper surface of the diaphragm 3A, and the flange 4a of the steel beam 4 is butt-welded to a predetermined side 3a of each of the diaphragms 3A, 3B. Web 4 of beam 4
b is welded to the peripheral surface of the short column 2b to connect the steel structure 1
Is formed. 10 and 11, similarly to the one shown in FIGS. 8 and 9, a steel pipe having a circular cross section is cut into long pillars 2a 1 and 2a 2 and a short pillar 2b, and a steel material is cut. forging to a formed annular body 5A, a 5B, long the upper end of the pillar portion 2a 1 and butt welded to the lower surface of the annular body 5A, and butt welding a lower end of the short cylindrical body 2b on the upper surface of the annular body 5A, a short column the upper end of the body 2b butt welded to the lower surface of the annular body 5B, long the lower end of the pillar portion 2a 2 and butt welded to the upper surface of the annular body 5B, the sides 5a and cutting a desired position of the periphery of each annular body 5A, 5B The flange 3a of the beam 3 is butt-welded to the side 5a, and the web 3b of the beam 3 is welded to the peripheral surface of the short column 2b to form the connection 1 of the steel structure.
【０００３】図１２および図１３に示すものは、角形鋼
管柱２の外形と略一致する形状の開口を有する鋼製の短
角筒状の補強板６Ａ、６Ｂに水平ガセットプレート７を
水平に突設し、仕口の鉄骨梁３の上下のフランジ３ａに
対応する角形鋼管柱２ａの部分に、それぞれ前記補強板
６を嵌めて溶接等により固定し、上方の補強板６Ｂの水
平ガセットプレート７と下方の補強板６Ａの水平ガセッ
トプレート７との間に垂直ガセットプレート８を垂直に
配し、垂直ガセットプレート８の内側縁８ａを角形鋼管
柱２に溶接し、その上下縁８ｂをそれぞれ上下の水平ガ
セットプレート７に溶接し、水平ガセットプレート７に
鉄骨梁３のフランジ３ａを突合せ溶接し、鉄骨梁３のウ
ェブ３ｂを垂直ガセットプレート８に溶接して鉄骨構造
体の仕口１を形成するものである。図１４に示すもの
は、梁取付位置の上下部の角形鋼管柱２に柱を貫通する
多数のボルト通し孔を穿ち、上下方向の両端に複数のボ
ルト通し孔を穿った取付板９を鉄骨梁３の端部に溶接
し、鉄骨梁３の端部を角形鋼管柱２の梁取付位置に位置
させて、鉄骨梁に溶接した取付板９のボルト通し孔およ
び角形鋼管柱２のボルト通し孔に長いボルトを通し、ナ
ットをねじ込み、これらのボルト・ナットｂｎにて鉄骨
梁３の端部を角形鋼管柱２に締め付けて、鉄骨構造体の
仕口１を形成するものである。FIGS. 12 and 13 show a horizontal gusset plate 7 projecting horizontally from steel short-square tubular reinforcing plates 6A and 6B having openings having a shape substantially corresponding to the outer shape of the square steel tubular column 2. As shown in FIGS. The reinforcing plates 6 are respectively fitted to portions of the square steel pipe columns 2a corresponding to the upper and lower flanges 3a of the steel beam 3 of the connection and fixed by welding or the like, and the horizontal gusset plate 7 of the upper reinforcing plate 6B and A vertical gusset plate 8 is vertically arranged between the lower reinforcing plate 6A and the horizontal gusset plate 7, an inner edge 8a of the vertical gusset plate 8 is welded to the square steel pipe column 2, and upper and lower edges 8b are respectively connected to the upper and lower horizontal gusset plates. It welds to the gusset plate 7, butt-welds the flange 3a of the steel beam 3 to the horizontal gusset plate 7, and welds the web 3b of the steel beam 3 to the vertical gusset plate 8 to form the connection 1 of the steel structure. Is shall. FIG. 14 shows a rectangular steel pipe column 2 at the upper and lower ends of a beam mounting position, in which a large number of bolt through holes penetrating the column are drilled, and a mounting plate 9 having a plurality of bolt through holes at both ends in the vertical direction is attached to a steel beam. 3 and the end of the steel beam 3 is positioned at the beam mounting position of the square steel tubular column 2, and the bolt through hole of the mounting plate 9 and the bolt through hole of the square steel tubular column 2 welded to the steel beam. A long bolt is passed through, a nut is screwed in, and the end of the steel beam 3 is tightened to the square steel pipe column 2 with these bolts / nuts bn to form the connection 1 of the steel structure.
【０００４】[0004]
【発明が解決しようとする課題】図８および図９に示す
ものは、鋼管の切断、鋼管とダイヤフラムとの突合せ溶
接等に多くの工数が必要なため、鋼管柱の仕口部の生産
効率の向上の障害になっており、鋼管柱の価格上昇の要
因になっている。そのうえ、鋼管柱の内部がダイヤフラ
ムにより区切られているため、鋼管柱内にコンクリート
を充填する所謂鋼管コンクリート構造にすることができ
ない欠点がある。図１０および図１１に示すものは、板
状のダイヤフラムの代りに、鋼材を鍛造して造った環状
体５ａ、５ｂを使うから、鋼管柱内にコンクリートを充
填することができ、鋼管コンクリート構造が可能である
が、図８および図９に示すものと同様に、鋼管の切断、
鋼管とダイヤフラムとの溶接等に多く工数が必要であ
り、生産効率の向上を阻害し、鋼管柱の価格上昇の要因
になっている。図１２および図１３に示すものは、鋼管
を切断しない点で生産効率の向上に役立つが、短角筒状
の補強板の製作、補強板への水平ガセットプレートの突
設等に多くの工数が必要であり、また、各水平ガセット
プレートは補強板を介して連結されているだけであり、
各鉄骨梁に作用する力を仕口全体に分散させ難い欠点が
ある。図１４に示すものは、角形鋼管柱２の梁取付位置
の上下部に多数のボルト通し孔を穿ち、鉄骨梁の端部に
複数のボルト通し孔を穿った取付板９を溶接する必要が
あるため、鋼管柱２の耐力が減少し、かつ穿孔、溶接等
の加工に多く工数が必要であり、生産効率の向上を阻害
し、鋼管柱２の価格上昇の要因になっている。この発明
の解決しようとする課題は、前述の従来技術が具有する
欠点をもたない鉄骨構造体の仕口を提供すること、換言
すると、鋼材の切断工数が低減でき、熟練を必要とする
溶接作業が最少になり、鉄骨の生産性の向上に寄与し得
る鉄骨構造体の仕口およびその製作法を提供することに
ある。FIGS. 8 and 9 show a large number of man-hours required for cutting a steel pipe and butt welding a steel pipe to a diaphragm. This is an obstacle to improvement and is a factor in the rise in the price of steel pipe columns. In addition, since the inside of the steel pipe column is partitioned by the diaphragm, there is a disadvantage that a so-called steel pipe concrete structure in which concrete is filled in the steel pipe column cannot be obtained. 10 and 11 use the annular bodies 5a and 5b formed by forging a steel material instead of the plate-shaped diaphragm, so that concrete can be filled in the steel pipe column, and the steel pipe concrete structure can be used. It is possible, but similar to that shown in FIGS.
Many man-hours are required for welding a steel pipe to a diaphragm, etc., which hinders an improvement in production efficiency and causes a rise in the price of a steel pipe column. 12 and 13 are useful for improving the production efficiency in that the steel pipe is not cut, but a lot of man-hours are required for manufacturing a short-square tubular reinforcing plate and projecting a horizontal gusset plate on the reinforcing plate. Required, and each horizontal gusset plate is only connected via a stiffening plate,
There is a disadvantage that it is difficult to disperse the force acting on each steel beam throughout the connection. In the one shown in FIG. 14, it is necessary to drill a large number of bolt through holes in the upper and lower portions of the beam mounting position of the square steel tubular column 2 and weld a mounting plate 9 having a plurality of bolt through holes to the end of the steel beam. For this reason, the yield strength of the steel pipe column 2 is reduced, and many man-hours are required for drilling, welding, and the like, which hinders an improvement in production efficiency and causes an increase in the price of the steel pipe column 2. The problem to be solved by the present invention is to provide a connection of a steel structure which does not have the drawbacks of the above-mentioned prior art, in other words, it is possible to reduce the number of man-hours for cutting steel materials and to obtain welding which requires skill. An object of the present invention is to provide a connection of a steel structure and a method of manufacturing the same, which can minimize the work and contribute to the improvement of the productivity of the steel frame.
【０００５】[0005]
【課題を解決するための手段】この発明は、前記課題を
解決するための手段として、次の構成を採用する。この
発明の構成は、閉鎖型断面の鉄骨柱と鉄骨梁とが結合さ
れている鉄骨構造体の仕口において、環状体の開口が鉄
骨柱の外周の寸法以下の大きさにされ、環状体が鉄骨梁
のフランジの取付位置に対応する鉄骨柱の部分にそれぞ
れ焼き嵌めされて、各環状体が鉄骨柱に対して不動にさ
れ、鉄骨梁のウェブが環状体間の鉄骨柱に直接にまたは
ガセットプレートを介して固定され、環状体に鉄骨梁の
フランジが固定されていることを特徴とする鉄骨構造体
の仕口にある。閉鎖型断面の鉄骨柱としては、たとえ
ば、鋼管または角形鋼管を使う。環状体（すなわち、ス
チフナリング）は、たとえば、鍛造、切削加工、鋳造等
により一体に製造する。環状体の環状の部分の幅および
厚さは、鉄骨梁に作用する力を環状体をとおして仕口全
体に確実に分散させることができる寸法とし、鉄骨梁等
に作用する圧縮力、引張力等に充分耐え得るようにす
る。好ましい実施例にあっては、環状体の環状の部分は
その幅をその厚さよりも大きくする。環状体の開口を鉄
骨柱の外周の寸法以下の大きさにし、環状体を焼き嵌め
温度に加熱すると、環状体の開口が鉄骨柱の外周の寸法
よりも大きくなり、鉄骨柱に焼き嵌めし得るようになる
寸法にする。The present invention employs the following structure as means for solving the above-mentioned problems. According to the configuration of the present invention, in a connection of a steel structure in which a steel column having a closed cross section and a steel beam are joined, an opening of the annular body is set to have a size equal to or less than an outer dimension of the steel column, and the annular body is formed. Each annular body is immobilized with respect to the steel column by shrink-fitting to the portion of the steel column corresponding to the mounting position of the flange of the steel beam, and the web of the steel beam is directly or gusseted to the steel column between the annular bodies. A connection of a steel structure, wherein the connection is fixed via a plate and a flange of a steel beam is fixed to an annular body. As the steel column having the closed section, for example, a steel pipe or a square steel pipe is used. The annular body (that is, the stiffener ring) is integrally manufactured by, for example, forging, cutting, casting, or the like. The width and thickness of the annular portion of the annular body should be such that the force acting on the steel beam can be reliably dispersed throughout the connection through the annular body, and the compressive and tensile forces acting on the steel beam, etc. And so on. In a preferred embodiment, the annular portion of the annulus has a width greater than its thickness. When the opening of the annular body is made smaller than the size of the outer periphery of the steel column and the annular body is heated to the shrink fitting temperature, the opening of the annular body becomes larger than the size of the outer periphery of the steel column and can be shrink fitted to the steel column. Dimensions.
【０００６】ガセットプレートは、鉄骨柱の鉄骨梁の取
付位置に、その内側縁を鉄骨柱の周面に溶接（例えば、
隅肉溶接）し、ガセットプレートの上方および下方に環
状体が位置するようにする。好ましい実施形態において
は、上方の環状体の下面をガセットプレートの上面に当
接させ、下方の環状体の上面をガセットプレートの下面
に当接させると、一対の環状体が所定の焼き嵌め位置に
くるように、ガセットプレートの寸法を定め、その溶接
位置を決める。焼き嵌めによる環状体と鉄骨柱との結合
の程度は、鉄骨梁に圧縮力や引張力が作用した場合に、
圧縮力や引張力を環状体から鉄骨柱に伝達でき、環状体
が鉄骨柱に対して不動になるようにする。この発明の鉄
骨構造体の仕口においては、鉄骨梁のフランジから鋼管
柱への圧縮力Ｐｃは、図５に示すように、環状体の一方
の側の部分をとおして鋼管柱への支圧力Ｐ1として伝播
され、鉄骨梁のフランジから鋼管柱への引張力Ｐｔは、
図６に示すように、環状体の他方の側の部分をとおし
て、鋼管柱への支圧力Ｐ2として伝播される。鉄骨梁に
作用する鉛直方向の力は主にガセットプレートにより支
持される。鉄骨梁は、そのウェブをガセットプレートに
固定してから、そのフランジを環状体のフランジ取付部
に固定する。好ましい実施形態においては、鉄骨柱に溶
接したガセットプレートに鉄骨梁のウェブをボルト・ナ
ットにより固定してから、鉄骨梁のフランジを環状体に
溶接する。また、鉄骨梁のウェブをガセットプレートに
溶接する場合があり、さらに、鉄骨梁のウェブを環状体
間の鉄骨柱に直接溶接する場合もある。鉄骨梁として
は、上下にフランジを備えたもの、たとえば、Ｈ形鋼を
使う。そして、梁は、鉄骨造、鉄骨コンクリート造また
は鉄骨鉄筋コンクリート造にする。[0006] The gusset plate is welded to the steel column of the steel column at the mounting position and the inner edge thereof is welded to the peripheral surface of the steel column (for example,
Fillet welding) so that the annular body is located above and below the gusset plate. In a preferred embodiment, when the lower surface of the upper annular member is brought into contact with the upper surface of the gusset plate and the upper surface of the lower annular member is brought into contact with the lower surface of the gusset plate, the pair of annular members are brought into a predetermined shrink-fit position. The dimensions of the gusset plate and the welding position are determined. The degree of connection between the annular body and the steel column due to shrink fitting is determined by applying a compressive or tensile force to the steel beam.
Compressive and tensile forces can be transmitted from the annulus to the steel column, such that the annulus is immobile relative to the steel column. In the connection of the steel structure of the present invention, the compressive force Pc from the flange of the steel beam to the steel pipe column is, as shown in FIG. 5, the bearing force on the steel pipe column through one side of the annular body. Propagated as P 1 , the tensile force Pt from the flange of the steel beam to the steel pipe column is
As shown in FIG. 6, through the part of the other side of the annular body, it is propagated as Bearing force P 2 of the steel pipe column. The vertical force acting on the steel beam is mainly supported by the gusset plate. The steel beam secures its web to the gusset plate and then secures its flange to the flange attachment portion of the annular body. In a preferred embodiment, the steel beam web is fixed to the gusset plate welded to the steel column with bolts and nuts, and then the flange of the steel beam is welded to the annular body. In some cases, the web of the steel beam is welded to the gusset plate, and in some cases, the web of the steel beam is directly welded to the steel column between the annular bodies. As the steel beam, a beam having upper and lower flanges, for example, an H-beam is used. And the beam is made of steel frame, steel frame concrete structure or steel frame reinforced concrete structure.
【０００７】また、この発明の構成は、閉鎖型断面の鉄
骨柱と鉄骨梁とが結合されている鉄骨構造体の仕口の製
作法において、環状体の開口を鉄骨柱の外周の寸法以下
の大きさにし、鉄骨梁のフランジの取付位置に対応する
鉄骨柱の部分に環状体をそれぞれ焼き嵌めし、環状体間
の鉄骨柱に溶接されたガセットプレートに鉄骨梁のウェ
ブを固定し、環状体に鉄骨梁のフランジを溶接すること
を特徴とする鉄骨構造体の仕口の製作法にある。好まし
い実施形態においては、鉄骨柱の所定位置にガセットプ
レートを溶接し、環状体をガセットプレートを基準にし
て鉄骨柱の所定位置に焼き嵌めする。より具体的な実施
形態を挙げると、環状体の下面をガセットプレートの上
面に当接させて一方の環状体を焼き嵌めし、環状体の上
面をガセットプレートの下面に当接させて他方の環状体
を焼き嵌めすると、一対の環状体が所定位置（鉄骨柱の
鉄骨梁のフランジの取付位置）に焼き嵌められるように
する。鉄骨柱への環状体の焼き嵌め作業は、通常は鉄骨
製造工場で行う。この発明の構造体は、その鉄骨柱を閉
鎖型断面の鋼材で形成されおり、その周囲に環状体が焼
き嵌められ、鉄骨柱に不動にされているので、鉄骨柱内
の空間をさえぎるものはなにもないから、鋼管コンクリ
ート構造にしても、コンクリートの充填の障害になるも
のはなにもない。そして、鋼管コンクリート構造にする
ことにより、鋼管柱の支圧力Ｐ1、Ｐ2が高められる。Further, according to the structure of the present invention, in a method of manufacturing a connection of a steel structure in which a steel column having a closed cross section and a steel beam are joined, the opening of the annular body is made smaller than the outer diameter of the steel column. The annular members are shrink-fitted to the steel columns corresponding to the mounting positions of the flanges of the steel beams, and the webs of the steel beams are fixed to the gusset plates welded to the steel columns between the annular members. And a method of manufacturing a connection of a steel structure, characterized by welding a flange of a steel beam. In a preferred embodiment, the gusset plate is welded to a predetermined position of the steel column, and the annular body is shrink-fitted to the predetermined position of the steel column with reference to the gusset plate. In a more specific embodiment, the lower surface of the annular body is brought into contact with the upper surface of the gusset plate, one of the annular bodies is shrink-fitted, and the upper surface of the annular body is brought into contact with the lower surface of the gusset plate, and the other annular body is brought into contact. When the bodies are shrink-fitted, the pair of annular bodies are shrink-fitted at predetermined positions (the mounting positions of the flanges of the steel beam of the steel column). The work of shrink-fitting an annular body into a steel column is usually performed at a steel frame manufacturing plant. In the structure of the present invention, the steel column is formed of a steel material having a closed cross section, and an annular body is shrink-fitted around the steel column and is immobilized on the steel column. Because there is nothing, even if it is a steel tube concrete structure, there is nothing that hinders the filling of concrete. And, by using the steel pipe concrete structure, the supporting pressures P 1 and P 2 of the steel pipe columns are increased.
【０００８】[0008]
【作 用】この発明の鉄骨構造体の仕口は、閉鎖型断面
の鉄骨柱と鉄骨梁とが結合されている鉄骨構造体の仕口
において、環状体の開口が鉄骨柱の外周の寸法以下の大
きさにされ、環状体が鉄骨梁のフランジの取付位置に対
応する鉄骨柱の部分にそれぞれ焼き嵌めされて、各環状
体が鉄骨柱に対して不動にされ、鉄骨梁のウェブが環状
体の間の鉄骨柱に直接にまたはガセットプレートを介し
て固定され、環状体に鉄骨梁のフランジが固定されてい
るから、環状体を鉄骨柱に焼き嵌めするという比較的簡
単な作業で鉄骨柱に対して不動でき、環状体と鉄骨柱と
の結合に溶接を使わないから、結合の正否の検査も容易
である。そのうえ、鉄骨柱に結合した環状体の周縁部に
梁鉄骨のフランジを直接溶接するから、鉄骨梁に作用す
る力を焼き嵌めした環状体をとおして鉄骨柱に確実に伝
播させることができる。The joint of a steel structure according to the present invention is a joint of a steel structure in which a steel column having a closed cross section and a steel beam are connected to each other. The annular body is shrink-fitted to a portion of the steel column corresponding to the mounting position of the flange of the steel beam, and each annular body is immobilized with respect to the steel column, and the web of the steel beam is Because the flange of the steel beam is fixed to the steel column directly or through a gusset plate, and the annular body is fixed to the steel column by a relatively simple work of shrink fitting the annular body to the steel column. It can be immovable and does not use welding to join the annular body and the steel column, so it is easy to check whether the connection is correct or not. In addition, since the flange of the beam steel is directly welded to the periphery of the annular body connected to the steel column, the force acting on the steel beam can be surely transmitted to the steel column through the shrink-fitted annular body.
【０００９】[0009]
【実施例】実施例１が図１ないし図６に示され、閉鎖型
断面の鉄骨柱として円形の横断面の鋼管を使い、環状体
１２Ａ、１２Ｂを鋼材の鍛造により造る例である。環状
体１２Ａ、１２Ｂは、図１および図２に示すように、そ
の環状の部分の幅ｗを厚さｔよりも大きくし、その開口
１２ａの直径ｄ1を鋼管柱１１の直径ｄ2以下の寸法、す
なわち、環状体１２Ａ、１２Ｂを焼き嵌め温度に加熱す
ると、環状体の開口１２ａが鉄骨柱１１の外周の寸法ｄ
2よりも大きくなり、鉄骨柱１１に嵌めることができ、
環状体１２Ａ、１２Ｂが常温になると、環状体が鉄骨柱
１１に対して不動になる寸法にする。環状体１２Ａ、１
２Ｂには、その周縁部１２ｂの鉄骨梁１３のフランジ１
３ａの取付位置に対応する部分を直線状に切断して、フ
ランジ取付部１２ｃが形成されている。ガセットプレー
ト１４は、その上下方向の寸法を鉄骨柱１１に取り付け
られる梁鉄骨１３の上下のフランジ１３ａの内側面間の
寸法に略一致させて、梁取付位置に対応する鉄骨柱１１
の部分に溶接により固定する。たとえば、ガセットプレ
ート１４の内側縁１４ａを鋼管柱１１に隅肉溶接ｆｗす
る。二つの環状体１２Ａ、１２Ｂを、ガセットプレート
１４を挾んで鋼管柱１１に焼き嵌めする。図３に示すよ
うに、たとうば、（イ）に示す環状体１２Ａを焼き嵌め
温度に加熱すると、膨張して（ロ）に示すように環状体
１２Ａの開口１２ａが鉄骨柱１１の外周の寸法ｄ2より
も大きくなる。開口１２ａが大きくなった環状体１２Ａ
を、（ハ）に示すように、鉄骨柱１１に嵌める（落し込
む）。環状体１２Ａが冷えると、収縮してもとの寸法に
かえろうとする。ところが、常温時の環状体１２Ａの開
口径ｄ1が鉄骨柱１１の外径ｄ2以下であるから、鉄骨柱
１１が環状体１２Ａで締め付けられ、環状体１２Ａが鉄
骨柱１１に対して不動になる。図２に示すように、環状
体１２Ａはその下面をガセットプレート１４の上端面に
当接させて焼き嵌めし、環状体１２Ｂをその上面をガセ
ットプレート１４の下端面に当接させて焼き嵌めする。Embodiment 1 Embodiment 1 is shown in FIGS. 1 to 6 and is an example in which annular steel bodies 12A and 12B are formed by forging a steel material using a steel pipe having a circular cross section as a steel column having a closed cross section. As shown in FIGS. 1 and 2, the annular bodies 12A and 12B have a width w of the annular portion larger than the thickness t, and a diameter d 1 of the opening 12 a is smaller than a diameter d 2 of the steel pipe column 11. When the annular bodies 12A and 12B are heated to the shrink-fitting temperature, the opening 12a of the annular body becomes the dimension d of the outer circumference of the steel column 11
It is larger than 2 and can be fitted to the steel column 11,
When the annular bodies 12A and 12B reach room temperature, the annular bodies are sized to be immovable with respect to the steel column 11. Annular body 12A, 1
2B, the flange 1 of the steel beam 13 at the peripheral edge 12b is provided.
A portion corresponding to the mounting position of 3a is cut linearly to form a flange mounting portion 12c. The gusset plate 14 has a vertical dimension substantially corresponding to the dimension between the inner surfaces of the upper and lower flanges 13a of the beam steel frame 13 attached to the steel column 11, and the steel column 11 corresponding to the beam mounting position.
Secured to the part by welding. For example, the inner edge 14a of the gusset plate 14 is fillet welded fw to the steel pipe column 11. The two annular bodies 12A and 12B are shrink-fitted to the steel pipe column 11 with the gusset plate 14 interposed therebetween. As shown in FIG. 3, when the annular body 12A shown in (a) is heated to the shrink-fitting temperature, it expands as shown in (b) and the opening 12a of the annular body 12A becomes the outer periphery of the steel column 11 as shown in (b). It is larger than the dimension d 2. Annular body 12A with enlarged opening 12a
Is fitted (dropped) into the steel column 11 as shown in (c). When the annular body 12A cools, it tends to shrink and return to its original size. However, since the opening diameter d 1 of the normal temperature of the annular body 12A is less than the outer diameter d 2 of the steel column 11, steel columns 11 is tightened in annular body 12A, immobile annular body 12A is against the steel columns 11 Become. As shown in FIG. 2, the annular body 12A is shrink-fitted with its lower surface in contact with the upper end surface of the gusset plate 14, and the annular body 12B is shrink-fitted with its upper surface in contact with the lower end surface of the gusset plate 14. .
【０００１０】所定位置に環状体１２Ａ、１２Ｂを焼嵌
めした鉄骨柱１１を建築現場に搬入し、鉄骨柱１１を建
て、図１および図２の左側に示すように、ガセットプレ
ート１４端面にＨ形鋼の鉄骨梁１３のウェブ１３ｂの端
面を対向させ、添え板ｓｐを当ててボルト・ナットｂｎ
にて固定し（またはガセットプレートと鉄骨梁のウェブ
とを重ねボルト・ナットｂｎにて固定し）、あるいは、
図１および図２の右側に示すように、ガセットプレート
１４と鉄骨梁のウェブ１３ｂとて溶接する。次に、環状
体１２Ａ、１２Ｂのフランジ取付部１２ｃに鉄骨梁１３
のフランジ１３ａを突合せ溶接ｂｗする。建造の適宜の
段階で、鋼管柱１１内にコンクリートｃを充填して鋼管
コンクリート構造にし、鉄骨構造体の仕口１０を完成す
る。環状体を鉄骨柱の所定位置に焼き嵌めする作業は鉄
骨製造工場で行う。実施例１においては、環状体１２
Ａ、１２Ｂを鉄骨柱１１の所定位置に焼き嵌めして結合
するものであるから、環状体と鋼管柱とを容易に結合で
き、また、ガセットプレート１４の上下端と環状体１２
Ａ、１２Ｂとを溶接により結合する必要もないから、溶
接作業を減少させることができ、仕口の形成のための熟
練を必要とする溶接作業を最少におさえることができ
る。そのため、溶接の正否の検査も最少にでき、鉄骨柱
等の製作工数が低減でき、鉄骨工事費の低減、鉄骨の生
産性の向上を図ることができる。The steel column 11 in which the annular bodies 12A and 12B are shrink-fitted at predetermined positions is carried into the construction site, where the steel column 11 is built, and as shown on the left side of FIGS. The end faces of the web 13b of the steel steel beam 13 are opposed to each other, and the bolt / nut bn
(Or gusset plate and steel beam web are overlapped and fixed with bolts and nuts bn) or
As shown on the right side of FIGS. 1 and 2, the gusset plate 14 is welded to the steel beam web 13b. Next, the steel beams 13 are attached to the flange attachment portions 12c of the annular bodies 12A and 12B.
Butt welding bw. At an appropriate stage of construction, concrete c is filled in the steel pipe column 11 to form a steel pipe concrete structure, and the connection 10 of the steel structure is completed. The work of shrink-fitting the annular body into a predetermined position of the steel column is performed at a steel frame manufacturing plant. In the first embodiment, the ring 12
A and 12B are shrink-fitted to predetermined positions of the steel column 11 and joined together, so that the annular body and the steel tube column can be easily joined together, and the upper and lower ends of the gusset plate 14 and the annular body 12
A and 12B do not need to be joined by welding, so that welding work can be reduced, and welding work requiring skill for forming a connection can be minimized. Therefore, the inspection of whether welding is right or wrong can be minimized, the man-hours for manufacturing a steel column or the like can be reduced, the cost of steel frame construction can be reduced, and the productivity of steel frames can be improved.
【０００１１】実施例２が図７に示され、閉鎖型断面の
鉄骨柱２１として四角形の横断面の角形鋼管を使い、環
状体２２Ａ、２２Ｂを鋼板を切削加工して造る例であ
る。環状体２２Ａ、２２Ｂは、鋼板を切削加工して、そ
の環状の部分の幅ｗを厚さよりも大きく造り、その開口
２２ａの寸法を角形鋼管柱２１の外周の寸法以下にす
る。環状体２２Ａ、２２Ｂの周縁部２２ｂの形状も角形
鋼管柱２１の外周の形状に類似した平面形状にする。環
状体２２Ａ、２２Ｂの周縁の四角形の各辺の中途の部分
をフランジ取付部２２ｃとする。ガセットプレート２４
の取付方は実施例１と同じである。実施例１と異なる点
は、上記の点だけであるから、その詳細な説明は省略す
る。実施例１および２において、環状体１２Ａ、１２
Ｂ、２２Ａ、２２Ｂが鉄骨柱１１、２１に対して移動す
る恐れがある場合は、環状体の一部を鉄骨柱１１、２１
に固定する。たとえば、環状体を鉄骨柱に溶接する。こ
の場合の溶接は、環状体が鉄骨柱に対して移動するのを
防止するためだけのもので、簡単な溶接でよい。環状体
の一部を鉄骨柱に固定する手段は溶接に限定されるもの
ではない、他の適宜の固定手段が採用できる。[Embodiment 2] FIG. 7 shows an embodiment 2 in which rectangular steel pipes having a rectangular cross section are used as steel columns 21 having a closed cross section, and annular bodies 22A and 22B are formed by cutting steel plates. The annular bodies 22A and 22B are formed by cutting a steel plate so that the width w of the annular portion is larger than the thickness, and the size of the opening 22a is set to be equal to or less than the size of the outer periphery of the square steel pipe column 21. The shape of the peripheral portion 22b of the annular bodies 22A and 22B is also made to be a planar shape similar to the shape of the outer periphery of the square steel tubular column 21. The middle part of each side of the square of the periphery of the annular bodies 22A and 22B is referred to as a flange attachment part 22c. Gusset plate 24
Is the same as in the first embodiment. The only difference from the first embodiment is the above-described point, and a detailed description thereof will be omitted. In Examples 1 and 2, the annular bodies 12A, 12A
If there is a possibility that B, 22A, 22B may move with respect to the steel columns 11, 21, a part of the annular body is replaced with the steel columns 11, 21.
Fixed to. For example, an annular body is welded to a steel column. The welding in this case is only for preventing the annular body from moving with respect to the steel column, and may be a simple welding. The means for fixing a part of the annular body to the steel column is not limited to welding, and other appropriate fixing means can be adopted.
【０００１２】[00012]
【発明の効果】この発明の鉄骨構造体の仕口は、閉鎖型
断面の鉄骨柱と鉄骨梁とが結合されている鉄骨構造体の
仕口において、環状体の開口が鉄骨柱の外周の寸法以下
の大きさにされ、環状体が鉄骨梁のフランジの取付位置
に対応する鉄骨柱の部分にそれぞれ焼き嵌めされて、各
環状体が鉄骨柱に対して不動にされ、鉄骨梁のウェブが
環状体の間の鉄骨柱に直接にまたはガセットプレートを
介して固定され、環状体に鉄骨梁のフランジが固定され
ていることからして、 （イ）閉鎖型断面の鋼材を短く切断しないから、切断工
数が低減できる。 （ロ）環状体と鉄骨柱との結合に溶接を使わないから、
仕口の製作における熟練を必要とする溶接作業を激減さ
せることができできる。 （ハ）環状体を焼き嵌めにより鉄骨柱に対して不動にす
るだけであるから、鉄骨柱への環状体の取付作業が非常
に簡単になる。 そのため、鉄骨の生産性の向上が図られ、鉄骨工事費の
低減を達成することができる。なお、鉄骨柱の所定位置
にガセットプレートを溶接しておき、環状体の焼き嵌め
位置をガセットプレートを基準にして決めると、環状体
の位置決め作業が非常に容易になる。According to the present invention, there is provided a steel structure having a closed structure in which a steel column having a closed cross section and a steel beam are connected to each other. The annular body is shrink-fitted to the steel column corresponding to the mounting position of the flange of the steel beam, and each annular body is immobilized with respect to the steel column, and the web of the steel beam is annular. It is fixed directly to the steel column between the bodies or through the gusset plate, and the flange of the steel beam is fixed to the annular body. Man-hours can be reduced. (B) Because welding is not used to join the annular body and the steel column,
It is possible to drastically reduce welding work requiring skill in manufacturing a connection. (C) Since only the ring is immobilized with respect to the steel column by shrink fitting, the work of attaching the ring to the steel column becomes very simple. Therefore, the productivity of the steel frame is improved, and the cost of the steel frame construction can be reduced. If the gusset plate is welded to a predetermined position of the steel column and the shrink-fitting position of the annular body is determined with reference to the gusset plate, the positioning operation of the annular body becomes very easy.
【図１】実施例１の鉄骨構造体の仕口を図２のＡ−Ａ線
で断面した平面図FIG. 1 is a plan view of a connection of a steel structure of Example 1 taken along line AA of FIG. 2;
【図２】図１に示すものをそのＢ−Ｂ線で断面した立面
図FIG. 2 is an elevational view of the one shown in FIG. 1 taken along the line BB;
【図３】実施例１の環状体の焼き嵌め工程を示す図FIG. 3 is a view showing a shrink-fitting step of the annular body according to the first embodiment.
【図４】図２の要部を拡大した立面図FIG. 4 is an enlarged view of an essential part of FIG. 2;
【図５】鉄骨梁に圧縮力が作用した場合の支圧力の伝播
の仕方を示す概略的な平面図FIG. 5 is a schematic plan view showing how a bearing force propagates when a compressive force acts on a steel beam.
【図６】鉄骨梁に引張力が作用した場合の支圧力の伝播
の仕方を示す概略的な平面図FIG. 6 is a schematic plan view showing how a bearing force propagates when a tensile force acts on a steel beam.
【図７】実施例２の鉄骨構造体の仕口を図２のＡ−Ａ線
と同様な線で断面した平面図FIG. 7 is a plan view in which the connection of the steel structure of Example 2 is cut along a line similar to the line AA in FIG. 2;
【図８】従来の鉄骨構造体の仕口を横断した平面図FIG. 8 is a plan view crossing a connection of a conventional steel structure.
【図９】図８に示すものを縦断した立面図FIG. 9 is an elevational view of the one shown in FIG.
【図１０】従来の他の鉄骨構造体の仕口を横断した平面
図FIG. 10 is a plan view traversing the connection of another conventional steel structure.
【図１１】図１０に示すものを縦断した立面図FIG. 11 is an elevational view of a longitudinal section of the one shown in FIG. 10;
【図１２】従来のその他の鉄骨構造体の仕口を図１３の
Ｅ−Ｅ線で断面した平面図FIG. 12 is a plan view of a connection of another conventional steel structure taken along line EE in FIG. 13;
【図１３】図１２に示すものをそのＤ−Ｄ線で断面した
立面図FIG. 13 is an elevation view in which the one shown in FIG. 12 is sectioned along the line DD;
【図１４】従来のその他の鉄骨構造体の仕口の斜視図FIG. 14 is a perspective view of a connection of another conventional steel structure.
１０ 仕口 １１ 鋼管柱 １２Ａ 環状体 １２Ｂ 環状体 １２ａ 開口 １２ｂ 周縁部 １２ｃ フランジ取付部 １３ 梁鉄骨 １３ａ フランジ １３ｂ ウェブ １４ ガセットプレート ２０ 仕口 ２１ 角形鋼管柱 ２２Ａ 環状体 ２２Ｂ 環状体 ２３ 梁鉄骨 ２４ ガセットプレート ｂｎ ボルト・ナット ｓｐ 添え板 DESCRIPTION OF SYMBOLS 10 Connection 11 Steel pipe column 12A Annular body 12B Annular body 12a Opening 12b Peripheral edge 12c Flange attachment part 13 Beam steel frame 13a Flange 13b Web 14 Gusset plate 20 Connection 21 Square steel pipe column 22A Annular body 22B Annular body 23 Beam steel set 24 bn Bolt / nut sp Attached plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 太田 道彦 東京都中央区銀座八丁目21番１号 竹中 工務店 東京本店内 (72)発明者 原 誠 東京都中央区銀座八丁目21番１号 竹中 工務店 東京本店内 (72)発明者 小南 勝義 東京都中央区銀座八丁目21番１号 竹中 工務店 東京本店内 (72)発明者 日坂 次男 東京都中央区銀座八丁目21番１号 竹中 工務店 東京本店内 (58)調査した分野(Int.Cl.7，ＤＢ名) E04B 1/24 E04B 1/30 E04B 1/58 508 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Michihiko Ota 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Inside the Tokyo head office (72) Inventor Makoto Hara 8-2-1-1, Ginza, Chuo-ku, Tokyo Takenaka (72) Inventor, Katsuyoshi Konan, 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation (72) Inventor, Tsuguo Hisaka 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Store Tokyo Main Store (58) Field surveyed (Int.Cl. 7 , DB name) E04B 1/24 E04B 1/30 E04B 1/58 508
Claims (6)
ている鉄骨構造体の仕口において、環状体の開口が鉄骨
柱の外周の寸法以下の大きさにされ、環状体が鉄骨梁の
フランジの取付位置に対応する鉄骨柱の部分にそれぞれ
焼き嵌めされて、各環状体が鉄骨柱に対して不動にさ
れ、鉄骨梁のウェブが環状体の間の鉄骨柱に直接にまた
はガセットプレートを介して固定され、環状体に鉄骨梁
のフランジが固定されていることを特徴とする鉄骨構造
体の仕口。In a joint of a steel structure in which a steel column and a steel beam having a closed cross section are joined, an opening of an annular body is made to have a size equal to or less than an outer dimension of the steel column, and the annular body is made of a steel frame. Each annular body is immobilized relative to the steel column by shrink-fitting to the part of the steel column corresponding to the mounting position of the beam flange, and the steel beam web is directly or gusseted to the steel column between the annular bodies. A connection of a steel structure, wherein the connection is fixed via a plate, and a flange of a steel beam is fixed to the annular body.
れ、鉄骨柱の内部にコンクリートが充填されている鉄骨
構造体の仕口において、鉄骨柱の所定位置にガセットプ
レートが溶接され、環状体の開口が鉄骨柱の外周の寸法
以下の大きさにされ、一つの環状体がその下面をガセッ
トプレートの上面に当接させて焼き嵌めされ、他の環状
体がその上面をガセットプレートの下面に当接させて焼
き嵌めされて、各環状体が鉄骨柱に対して不動にされ、
鉄骨梁のウェブがガセットプレートに固定され、鉄骨梁
のフランジが環状体に溶接されていることをことを特徴
とする鉄骨構造体の仕口。2. A gusset plate is welded to a predetermined position of a steel column at a connection of a steel structure in which a steel column having a closed section and a steel beam are joined and concrete is filled in the steel column, The opening of the annular body is sized to be equal to or smaller than the outer diameter of the steel column, one annular body is shrink-fitted with its lower surface in contact with the upper surface of the gusset plate, and the other annular body has the upper surface of the gusset plate Each ring is immobilized with respect to the steel column by being shrunk in contact with the lower surface,
A connection of a steel structure, wherein a web of a steel beam is fixed to a gusset plate, and a flange of the steel beam is welded to an annular body.
であることを特徴とする請求項１または２記載の鉄骨構
造体の仕口。3. The connection of a steel structure according to claim 1, wherein the steel column having a closed section is a steel pipe or a square steel pipe.
ている鉄骨構造体の仕口の製作法において、環状体の開
口を鉄骨柱の外周の寸法以下の大きさにし、鉄骨梁のフ
ランジの取付位置に対応する鉄骨柱の部分に環状体をそ
れぞれ焼き嵌めし、環状体間の鉄骨柱に溶接されたガセ
ットプレートに鉄骨梁のウェブを固定し、環状体に鉄骨
梁のフランジを溶接することを特徴とする鉄骨構造体の
仕口の製作法。4. A method of manufacturing a connection of a steel structure in which a steel column and a steel beam having a closed cross section are connected to each other, wherein an opening of the annular body is made to have a size equal to or smaller than an outer circumference of the steel column. The annular bodies are shrink-fitted to the portions of the steel column corresponding to the mounting positions of the flanges, and the steel beam webs are fixed to the gusset plates welded to the steel columns between the annular bodies, and the steel beam flanges are attached to the annular body. A method for producing a joint of a steel structure, characterized by welding.
れ、鉄骨柱の内部にコンクリートが充填されている鉄骨
構造体の仕口の製作法において、鉄骨柱の所定位置にガ
セットプレートを溶接し、環状体の開口を鉄骨柱の外周
の寸法以下の大きさにし、フランジ取付部を環状体の周
縁部に形成し、鉄骨柱の鉄骨梁のフランジの取付位置に
対応する環状体の焼き嵌め位置をガセットプレートを基
準にして決めて、二つの焼き嵌め位置に環状体をそれぞ
れ焼き嵌めして、各環状体を鉄骨柱に対して不動にし、
鉄骨梁のウェブを前記ガセットプレートに固定してか
ら、鉄骨梁のフランジを環状体のフランジ取付部に溶接
することを特徴とする鉄骨構造体の仕口の製作法。5. A method of manufacturing a connection of a steel structure in which a steel column having a closed cross section and a steel beam are joined and concrete is filled in the steel column, a gusset plate is provided at a predetermined position of the steel column. Welding, making the opening of the annular body smaller than the outer diameter of the steel column, forming a flange attachment part on the periphery of the annular body, and burning the annular body corresponding to the mounting position of the flange of the steel beam of the steel column Determine the fitting position with reference to the gusset plate, shrink-fit the annular bodies at the two shrink-fitting positions respectively, and immobilize each annular body with respect to the steel column,
A method of manufacturing a connection of a steel structure, comprising fixing a web of a steel beam to the gusset plate, and then welding a flange of the steel beam to a flange attachment portion of an annular body.
れ、鉄骨柱の内部にコンクリートが充填されている鉄骨
構造体の仕口の製作法において、鉄骨柱の所定位置にガ
セットプレートを溶接し、環状体の開口を鉄骨柱の外周
の寸法以下の大きさにし、フランジ取付部を環状体の周
縁部に形成し、一方の環状体をその下面がガセットプレ
ートの上面に当接するように焼き嵌めし、他方の環状体
をその上面がガセットプレートの下面に当接するように
焼き嵌めして、各環状体を鉄骨柱に対して不動にし、鉄
骨梁のウェブを前記ガセットプレートに固定してから、
鉄骨梁のフランジを環状体のフランジ取付部に溶接する
ことを特徴とする鉄骨構造体の仕口の製作法。6. A method of manufacturing a connection of a steel structure in which a steel column having a closed cross section and a steel beam are joined and concrete is filled in the steel column, a gusset plate is provided at a predetermined position of the steel column. Weld, make the opening of the annular body smaller than the outer dimension of the steel column, form a flange attachment part on the peripheral edge of the annular body, and make one annular body so that the lower surface contacts the upper surface of the gusset plate Shrink-fit, shrink-fit the other annular body such that its upper surface abuts the lower surface of the gusset plate, immobilize each annular body with respect to the steel column, and secure the web of steel beams to the gusset plate. From
A method of manufacturing a connection of a steel structure, comprising welding a flange of a steel beam to a flange mounting portion of an annular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20569091A JP3000046B2 (en) | 1991-07-23 | 1991-07-23 | Connection of steel structure and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20569091A JP3000046B2 (en) | 1991-07-23 | 1991-07-23 | Connection of steel structure and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06101269A JPH06101269A (en) | 1994-04-12 |
| JP3000046B2 true JP3000046B2 (en) | 2000-01-17 |
Family
ID=16511096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20569091A Expired - Fee Related JP3000046B2 (en) | 1991-07-23 | 1991-07-23 | Connection of steel structure and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3000046B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100227574B1 (en) * | 1997-01-28 | 1999-11-01 | 정용주 | Steel frame for stone-layered curtain wall and its constructure method |
-
1991
- 1991-07-23 JP JP20569091A patent/JP3000046B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06101269A (en) | 1994-04-12 |
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