JP2024012003A - Earthquake-proof m-shaped frame for first floor of steel structure - Google Patents

Earthquake-proof m-shaped frame for first floor of steel structure Download PDF

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JP2024012003A
JP2024012003A JP2022122980A JP2022122980A JP2024012003A JP 2024012003 A JP2024012003 A JP 2024012003A JP 2022122980 A JP2022122980 A JP 2022122980A JP 2022122980 A JP2022122980 A JP 2022122980A JP 2024012003 A JP2024012003 A JP 2024012003A
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fixing
brace
steel
plate
welded
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龍夫 高橋
Tatsuo Takahashi
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Takahashi Kanri KK
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Takahashi Kanri KK
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Abstract

PROBLEM TO BE SOLVED: To provide an earthquake-proof frame formed in a compact size.
SOLUTION: An earthquake-proof frame is formed by welding and connecting a first steel column 9 and a second steel column 10, which are formed of square steel tubes having the same shape and disposed in parallel, to both ends of four braces 24, 25, 26, 27 formed of square steel tubes into an M shape to a top end plate for fixing brace 19, a vertical center plate for fixing brace 20, and a bottom end plate for fixing brace 21, which are welded and connected to the first steel column 9, and to the upper plate for fixing brace 22 and the lower plate for fixing brace 23, which are welded and connected to the second steel column 10 located to face the first steel column.
SELECTED DRAWING: Figure 4
COPYRIGHT: (C)2024,JPO&INPIT

Description

この発明は、鉄骨構造において1階部分に設置するための耐震フレームに関するものである。 The present invention relates to an earthquake-resistant frame for installation on the first floor of a steel structure.

鉄骨造に用いられる骨組は鋼製の柱と梁を主体とし、耐震強度を強化するため必要に応じてブレースやトラスを追設して構成されている。 The framework used in steel construction consists mainly of steel columns and beams, with additional braces and trusses added as necessary to strengthen earthquake resistance.

ブレースやトラスは鉄骨構造を補強するものであり、高い耐震性の要求される建築物についてはブレースやトラスのような補強材が多用されている。 Braces and trusses are used to reinforce steel structures, and reinforcement materials such as braces and trusses are often used in buildings that require high earthquake resistance.

従来から、鉄骨構造の上下の梁と2本の鋼製の柱に囲まれた領域に設置するブレースについては、2本の柱の対向した柱側面(一方の柱上部と他方の柱下部)に溶接接合して取り付けたガセットプレートにブレースの両端を高力ボルトで連結してX形に固定したX形耐震フレームや、フレームの中の2本のブレースをK字形に配置したK形耐震フレーム等が採用されてきた。 Conventionally, for braces installed in an area surrounded by upper and lower beams of a steel structure and two steel columns, braces are installed on the opposite column sides of the two columns (the top of one column and the bottom of the other column). An X-shaped earthquake-resistant frame, in which both ends of the braces are connected with high-strength bolts to a gusset plate attached by welding and fixed in an X-shape, and a K-shaped earthquake-resistant frame, in which two braces in the frame are arranged in a K-shape, etc. has been adopted.

前記X形耐震フレームの場合には2本の柱の間にブレース(一般的にブレースは丸棒又は平板鋼板を用いて製作する)をX形に配置するため、前記2本の柱の間に窓や出入口等の開口部を設けたい場合、窓や出入口を設置する位置や大きさに制約が生じた。 In the case of the above-mentioned X-shaped seismic frame, braces (generally braces are made using round bars or flat steel plates) are placed between the two columns in an X-shape. When it is desired to provide an opening such as a window or doorway, there are restrictions on the location and size of the window or doorway.

さらに、ガセットプレートとブレースに成形する高力ボルト用の下穴の直径は、従来からブレースとガセットプレートとのガタツキを最小限に抑えるためボルト直径プラス1mm程度の高い精度が要求されてきた。そのためガセットプレートを柱側面に正確に溶接接合する作業は熟練した技術と時間が必要であり、時間と費用が嵩むといった問題が発生していた。 Furthermore, the diameter of the prepared hole for the high-strength bolt formed in the gusset plate and brace has conventionally been required to be highly accurate by about 1 mm plus the bolt diameter in order to minimize looseness between the brace and the gusset plate. Therefore, the work of accurately welding the gusset plate to the column side requires skilled technique and time, resulting in problems such as increased time and cost.

また、前記K形耐震フレームの場合には、2本のブレースの固定部を、一方の柱上下端部と他方の柱中央部に限定しているため、耐震力を高めるためには左右のフレーム間隔を幅広く構成するか、又は頑丈なブレース部材を使用しなければならない、といった問題が発生していた。 In addition, in the case of the above-mentioned K-type seismic frame, the fixed parts of the two braces are limited to the upper and lower ends of one column and the center of the other column, so in order to increase earthquake resistance, it is necessary to Problems have arisen in that the spacing must be widened or a sturdy brace member must be used.

この発明は、上記の問題点に鑑みてなされたもので、耐震フレームを工場で治具を用いて生産することにより高精度な耐震フレームを製造すると共に、鉄骨造における窓、出入口等の開口部を幅広で大きく形成するため、横幅が狭くコンパクトに形成した耐震フレームを提供することを課題とする。 This invention was made in view of the above-mentioned problems, and it is possible to manufacture a high-precision earthquake-resistant frame by producing the earthquake-resistant frame in a factory using a jig. An object of the present invention is to provide an earthquake-resistant frame that is narrow in width and compact in order to form a wide and large frame.

さらに左右2本の柱の相対する柱側面に溶接接合した2枚のプレートの間に、角形鋼管で成形したブレースをサンドイッチ状に溶接接合することにより、コンパクトで、且つ強固な耐震フレームを提供することを課題とする。 Furthermore, by welding braces made of square steel pipes in a sandwich-like manner between two plates welded to the opposing sides of the left and right columns, a compact and strong earthquake-resistant frame is provided. That is the issue.

さらに左右2本の柱の下端部にH型鋼で成形した下部梁フレームのフランジ面を溶接接合することにより、強固で変形することが極めて少ない耐震フレームを提供することを課題とする。 Furthermore, it is an object of the present invention to provide an earthquake-resistant frame that is strong and hardly deformed by welding the flange surfaces of a lower beam frame formed of H-shaped steel to the lower ends of the two left and right columns.

かかる課題を解決するため、請求項1に記載の発明は、鉄骨構造の建物の耐震補強をするための耐震フレームにおいて、同一形状の正方形の角形鋼管で成形した、平行する第1の鉄骨柱と第2の鉄骨柱と、第1の鉄骨柱と第2の鉄骨柱の下端部に溶接接合したH型鋼で成形した下部梁フレームと、第1の鉄骨柱の上端部に溶接接合した前記第1の鉄骨柱の断面と概ね同一寸法の平板鋼板で成形した上端部エンドプレートと、第2の鉄骨柱の上端部に溶接接合した長方形の平板鋼板で成形した梁固定用プレートと、第1の鉄骨柱のプレート取付面の上端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上端部プレートと、第1の鉄骨柱のプレート取付面の上下中央部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上下中央部プレートと、第1の鉄骨柱のプレート取付面の下端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下端部プレートと、第2の鉄骨柱のプレート取付面の上端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上側プレートと、第2の鉄骨柱のプレート取付面の下端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下側プレートと、第1の鉄骨柱に溶接接合した前記ブレース固定用上端部プレートと前記ブレース固定用上下中央部プレートと前記ブレース固定用下端部プレートと、向い合せに位置する第2の鉄骨柱に溶接接合した前記ブレース固定用上側プレートと前記ブレース固定用下側プレートに正方形の角形鋼管で成形した4本のブレースの両端部をM字形に溶接接合したことを特徴する。 In order to solve this problem, the invention according to claim 1 provides an earthquake-resistant frame for earthquake-resistant reinforcement of a steel-framed building. a second steel column, a lower beam frame made of H-shaped steel welded to the lower ends of the first and second steel columns, and the first steel column welded to the upper end of the first steel column. an upper end end plate formed from a flat steel plate having approximately the same dimensions as the cross section of the second steel column; a beam fixing plate formed from a rectangular flat steel plate welded to the upper end of the second steel column; Two upper end plates for fixing braces made of flat steel plates of the same shape are welded to the upper end of the plate mounting surface of the column, and welded to the upper and lower center of the plate mounting surface of the first steel column. Two brace fixing upper and lower center plates made of flat steel plates of the same shape, and two brace fixing plates made of flat steel plates of the same shape welded to the lower end of the plate mounting surface of the first steel column. The lower end plate for brace fixing, two upper plates for fixing braces made of flat steel plates of the same shape, which are welded and joined at a position one-quarter from the upper end of the plate mounting surface of the second steel column, and the second upper plate for fixing the brace. Two lower plates for fixing braces made of flat steel plates of the same shape, which are welded to a position one-fourth from the lower end of the plate mounting surface of the steel column, and the brace which is welded to the first steel column. the upper end plate for fixing the brace, the upper and lower center plates for fixing the brace, the lower end plate for fixing the brace, the upper plate for fixing the brace and the lower plate for fixing the brace welded to a second steel column located opposite to each other; It is characterized by the fact that both ends of four braces formed from square steel tubes are welded to the side plate in an M-shape.

請求項2に記載の発明は、請求項1に記載の構造に加え、前記下部梁フレームの下側フランジに成形した複数個の穴に、基礎コンクリートに設置した複数のアンカーボルトをナットで固定したことを特徴とする。 In addition to the structure described in claim 1, the invention according to claim 2 further comprises fixing a plurality of anchor bolts installed in the foundation concrete to a plurality of holes formed in the lower flange of the lower beam frame with nuts. It is characterized by

請求項3に記載の発明は、請求項1又は2に記載の構造に加え、前記上端部エンドプレートに4個のボルト穴を正方形状に成形し、前記4個のボルト穴の鉄骨柱取付面に4個の梁固定用ナットを溶接接合したことを特徴とする。 In addition to the structure according to claim 1 or 2, the invention according to claim 3 is characterized in that four bolt holes are formed into a square shape in the upper end end plate, and the steel column mounting surface of the four bolt holes is formed in a square shape. It is characterized by four beam fixing nuts welded together.

請求項4に記載の発明は、請求項1乃至3のいずれか1項に記載の構造に加え、前記梁固定用プレートに大梁をボルト、ナットで取り付けるため、前記梁固定用プレートの概ね四隅に成形した4個のボルト穴と相対する前記大梁の大梁下側フランジに4個のボルト穴を成形したことを特徴とする。 In addition to the structure described in any one of claims 1 to 3, the invention according to claim 4 provides a structure in which, in addition to the structure according to any one of claims 1 to 3, in order to attach a large beam to the beam fixing plate with bolts and nuts, approximately four corners of the beam fixing plate are provided. It is characterized in that four bolt holes are formed in the lower flange of the girder, which faces the four formed bolt holes.

請求項1に記載の発明によれば、鉄骨構造の建物の耐震補強をするための耐震フレームにおいて、同一形状の正方形の角形鋼管で成形した、平行する第1の鉄骨柱と第2の鉄骨柱と、第1の鉄骨柱と第2の鉄骨柱の下端部に溶接接合したH型鋼で成形した下部梁フレームと、第1の鉄骨柱の上端部に溶接接合した前記第1の鉄骨柱の断面と概ね同一寸法の平板鋼板で成形した上端部エンドプレートと、第2の鉄骨柱の上端部に溶接接合した長方形の平板鋼板で成形した梁固定用プレートと、第1の鉄骨柱のプレート取付面の上端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上端部プレートと、第1の鉄骨柱のプレート取付面の上下中央部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上下中央部プレートと、第1の鉄骨柱のプレート取付面の下端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下端部プレートと、第2の鉄骨柱のプレート取付面の上端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上側プレートと、第2の鉄骨柱のプレート取付面の下端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下側プレートと、第1の鉄骨柱に溶接接合した前記ブレース固定用上端部プレートと前記ブレース固定用上下中央部プレートと前記ブレース固定用下端部プレートと、向い合せに位置する第2の鉄骨柱に溶接接合した前記ブレース固定用上側プレートと前記ブレース固定用下側プレートに正方形の角形鋼管で成形した4本のブレースの両端部をM字形に溶接接合したことにより、従来、一般的に用いられてきたX形耐震フレーム、K形耐震フレームに比べ、耐震フレームの横巾を狭く形成することが出来るようになり、そのため建物の窓、出入口等の開口部分の横巾を大きくすることが可能になった。 According to the invention set forth in claim 1, in an earthquake-resistant frame for seismically reinforcing a steel structure building, a first steel column and a second steel column that are parallel to each other are made of square steel pipes having the same shape. a lower beam frame formed of H-shaped steel welded to the lower ends of the first steel column and the second steel column; and a cross section of the first steel column welded to the upper end of the first steel column. an upper end end plate formed from a flat steel plate with approximately the same dimensions as the beam fixing plate formed from a rectangular flat steel plate welded to the upper end of the second steel column, and a plate mounting surface of the first steel column. Two upper end plates for fixing braces made of flat steel plates of the same shape, welded to the upper ends, and flat steel plates of the same shape welded to the upper and lower center of the plate mounting surface of the first steel column. two upper and lower center plates for fixing braces formed from the same shape, and two lower end plates for fixing braces formed from flat steel plates of the same shape, welded to the lower end of the plate mounting surface of the first steel column. , two upper brace fixing plates formed from flat steel plates of the same shape, welded together at a position one-fourth from the top of the plate mounting surface of the second steel column, and plate installation of the second steel column. Two lower plates for fixing braces made of flat steel plates of the same shape are welded together at a position one-quarter from the lower end of the surface, and an upper end plate for fixing braces is welded to the first steel column. and the upper and lower middle plates for fixing the brace, the lower end plate for fixing the brace, the upper plate for fixing the brace and the lower plate for fixing the brace which are welded and joined to the second steel column located facing each other. By welding the ends of four braces formed from square steel pipes into an M-shape, the width of the earthquake-resistant frame is narrower than the commonly used X-shaped and K-shaped earthquake-resistant frames. As a result, it became possible to increase the width of openings such as windows and entrances in buildings.

請求項2に記載の発明によれば、前記下部梁フレームの下側フランジに成形した複数個の穴に、基礎コンクリートに設置した複数本のアンカーボルトをナットで固定したことにより、1階床スラブに鉄骨構造1階用耐震M形フレームを安定した状態で固定することが可能となった。 According to the invention set forth in claim 2, a plurality of anchor bolts installed in the foundation concrete are fixed with nuts to a plurality of holes formed in the lower flange of the lower beam frame, so that the first floor floor slab It has now become possible to stably fix the earthquake-resistant M-shaped frame for the first floor steel structure.

請求項3に記載の発明によれば、上端部エンドプレートに4個のボルト穴を正方形状に成形し、前記4個のボルト穴の鉄骨柱取付面に4個の梁固定用ナットを溶接接合したことにより、鉄骨柱にダイヤフラムを取り付けることなく鉄骨柱と大梁を頑強に固定することが可能になった。 According to the third aspect of the invention, four bolt holes are formed in the upper end plate in a square shape, and four beam fixing nuts are welded to the steel column mounting surface of the four bolt holes. This made it possible to firmly fix the steel column and girder without attaching a diaphragm to the steel column.

請求項4に記載の発明によれば、梁固定用プレートに大梁をボルト、ナットで取り付けるため、梁固定用プレートの概ね四隅に成形した4個のボルト穴と相対する前記大梁の大梁下側フランジに4個のボルト穴を成形したことにより、鉄骨構造1階用耐震M形フレームを簡単に大梁に固定することが可能になった。 According to the invention set forth in claim 4, in order to attach the girder to the beam fixing plate with bolts and nuts, the girder lower flange of the girder faces the four bolt holes formed at approximately four corners of the beam fixing plate. By forming four bolt holes in the structure, the earthquake-resistant M-shaped frame for the first floor of a steel structure can be easily fixed to the girder.

以下、この発明の実施の形態について説明する。 Embodiments of this invention will be described below.

図1乃至図8には、この発明の実施の形態を示す。 Embodiments of the present invention are shown in FIGS. 1 to 8.

図1は、鉄骨造の建物を建築するための鉄骨構造1を示す。基礎コンクリート12の所定の位置に埋め込み施工した複数本のアンカーボルト11と、前記アンカーボルト11に固定した1階用の鉄骨構造1階用耐震M形フレーム5と、2階用の鉄骨構造2階用耐震M形フレーム4と、3階用の鉄骨構造3階用耐震M形フレーム3と、4階用の鉄骨構造4階用耐震M形フレーム2と、外壁を構成するALC壁パネル8と、切妻屋根を構成するALC板14と屋根を防水するためのFRP防水15を平面図で示す。 FIG. 1 shows a steel structure 1 for constructing a steel frame building. A plurality of anchor bolts 11 embedded in predetermined positions of the foundation concrete 12, an earthquake-resistant M-shaped frame 5 for the first floor steel structure fixed to the anchor bolts 11, and a steel structure second floor for the second floor. an earthquake-resistant M-shaped frame 4 for the third floor, a steel-frame structure for the third floor, an earthquake-resistant M-shaped frame 3 for the fourth floor, a steel-frame structure for the fourth floor, an earthquake-resistant M-shaped frame 2 for the fourth floor, and an ALC wall panel 8 that constitutes the outer wall. A plan view shows an ALC board 14 forming a gable roof and an FRP waterproofing member 15 for waterproofing the roof.

さらに、図1で示す1階用の鉄骨構造1階用耐震M形フレーム13は、鉄骨構造1階用耐震M形フレーム5を左右反転させて同一形状で構成したもので、耐震性能を高めるため同一階の相対する反対側に設置した状態を示す。 Furthermore, the earthquake-resistant M-shaped frame 13 for the first floor steel structure shown in FIG. This shows the installation on opposite sides of the same floor.

図2は、図1で説明した鉄骨構造1階用耐震M形フレーム5と基礎コンクリート12、アンカーボルト11と大梁(A)6、大梁(B)7を斜視図で示す。鉄骨構造1階用耐震M形フレーム5は一辺が100mm、肉厚4.5mm、長さ約1926mmの同一形状で成形した正方形の2本の角形鋼管を、700mm間隔で平行に配置した第1の鉄骨柱9、第2の鉄骨柱10と、前記2本の第1の鉄骨柱9、第2の鉄骨柱10の下端を高さ寸法200mm、辺寸法100mm、フランジ厚さ8mm、ウェブ厚さ5.5mm、長さ約900mmのH型鋼で成形した下部梁フレーム28のフランジ上面の両端部に溶接接合し、さらに第1の鉄骨柱9のプレート取付面(A)33の中心線上の上端部に第1のブレース24の端部をサンドイッチ状に挟み込むように溶接接合した同一形状の2枚のブレース固定用上端部プレート19と、さらに前記プレート取付面(A)33の中心線上の上下中央部に第2のブレース25と第3のブレース26の端部をサンドイッチ状に挟み込むように溶接接合した同一形状の2枚のブレース固定用上下中央部プレート20と、さらに前記プレート取付面(A)33の中心線上の下端部に第4のブレース27の端部をサンドイッチ状に挟み込むように溶接接合した同一形状の2枚のブレース固定用下端部プレート21と、さらに第2の鉄骨柱10のプレート取付面(B)32の中心線上の上端から4分の1の位置に第1のブレース24と第2のブレース25の端部をサンドイッチ状に挟み込むように溶接接合した2枚のブレース固定用上側プレート22と、さらに前記プレート取付面(B)32の中心線上の下端から4分の1の位置に第3のブレース26と第4のブレース27の端部をサンドイッチ状に挟み込むように溶接接合した2枚のブレース固定用下側プレート23で構成され、このように第1の鉄骨柱9のプレート取付面(A)33に溶接接合したブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース固定用下端部プレート21と、向い合せに位置する第2の鉄骨柱10のプレート取付面(B)32に溶接接合したブレース固定用上側プレート22、ブレース固定用下側プレート23に対して、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した4本の第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27の端部をM字形に溶接接合し、さらに第1の鉄骨柱9の上端部に縦約100mm、横約100mm、厚さ9mmの正方形の平板鋼板で成形した上端部エンドプレート36を溶接接合すると共に、さらに第2の鉄骨柱10の上端部に縦約100mm、横約270mm、厚さ9mmの長方形の平板鋼板で成形した梁固定用プレート31を溶接接合し、このように構成した上端部エンドプレート36と梁固定用プレート31の上面に、高さ寸法200mm、辺寸法100mm、フランジ厚さ8mm、ウェブ厚さ5.5mmの同一形状の2本のH型鋼をガセットプレート16とボルト17とナット(図示せず)でL字形に直角に固定した大梁(A)6の大梁下側フランジ(A)55と大梁(B)7の大梁下側フランジ(B)64を載置し、L字形に構成した大梁(A)6と大梁(B)7をボルト18、ボルト30で第1の鉄骨柱9と第2の鉄骨柱10に固定した状態を示す。 FIG. 2 is a perspective view showing the earthquake-resistant M-shaped frame 5 for the first floor of a steel structure, the foundation concrete 12, the anchor bolts 11, the girders (A) 6, and the girders (B) 7 explained in FIG. The earthquake-resistant M-shaped frame 5 for the first floor of a steel structure consists of two rectangular steel pipes formed in the same shape with a side of 100 mm, a wall thickness of 4.5 mm, and a length of about 1926 mm, arranged in parallel at an interval of 700 mm. The lower ends of the steel column 9, the second steel column 10, and the two first and second steel columns 10 have a height of 200 mm, a side dimension of 100 mm, a flange thickness of 8 mm, and a web thickness of 5. It is welded to both ends of the upper surface of the flange of the lower beam frame 28 formed of H-shaped steel with a diameter of . Two brace-fixing upper end plates 19 of the same shape are welded together so as to sandwich the ends of the first brace 24 in a sandwich-like manner, and the upper and lower central portions of the plate mounting surface (A) 33 on the center line. Two brace fixing upper and lower center plates 20 of the same shape are welded together so as to sandwich the ends of the second brace 25 and the third brace 26, and the plate mounting surface (A) 33. Two lower end plates 21 for fixing braces of the same shape are welded together so that the end of the fourth brace 27 is sandwiched between the lower ends on the center line, and the plate mounting surface of the second steel column 10. (B) Two upper plates 22 for fixing braces welded together so as to sandwich the ends of the first brace 24 and the second brace 25 at a position one-fourth from the upper end on the center line of 32. And further, two pieces welded together so that the end portions of the third brace 26 and the fourth brace 27 are sandwiched in a sandwich shape at a position one-fourth from the lower end on the center line of the plate mounting surface (B) 32. The lower plate 23 for fixing the brace is welded to the plate mounting surface (A) 33 of the first steel column 9 in this way, the upper end plate 19 for fixing the brace, the upper and lower center plates 20 for fixing the brace, With respect to the lower end plate 21 for brace fixation, the upper plate 22 for brace fixation, and the lower plate 23 for brace fixation, which are welded to the plate attachment surface (B) 32 of the second steel column 10 located opposite to each other, The ends of the four first braces 24, second braces 25, third braces 26, and fourth braces 27 formed from square steel tubes with a side of 80 mm and a wall thickness of 2.3 mm are M-shaped. The upper end plate 36 formed from a square flat steel plate with a length of about 100 mm, a width of about 100 mm, and a thickness of 9 mm is further welded to the upper end of the first steel frame column 9. A beam fixing plate 31 made of a rectangular flat steel plate with a length of about 100 mm, a width of about 270 mm, and a thickness of 9 mm is welded to the upper end of the column 10, and the upper end end plate 36 and the beam fixing plate configured in this way are connected. 31, two H-beams of the same shape with a height dimension of 200 mm, a side dimension of 100 mm, a flange thickness of 8 mm, and a web thickness of 5.5 mm are attached to the L with a gusset plate 16, a bolt 17, and a nut (not shown). The girder (A) 6 is configured into an L-shape by placing the girder lower flange (A) 55 of the girder (A) 6 fixed at right angles to the girder shape and the girder lower flange (B) 64 of the girder (B) 7. This shows a state in which the girder (B) 7 is fixed to the first steel column 9 and the second steel column 10 with bolts 18 and 30.

図3は、図2で説明した斜視図を、概ね反対方向から見た状態を斜視図で示す。図3では第1の鉄骨柱9のブレース取付面(A)33の中心線上の上端部に溶接接合したブレース固定用上端部プレート19と、上下中央部に溶接接合したブレース固定用上下中央部プレート20と、下端部に溶接接合したブレース固定用下端部プレート21の位置を明確に斜視図で示す。 FIG. 3 shows a perspective view of the perspective view explained in FIG. 2, viewed from an approximately opposite direction. In FIG. 3, the upper end plate 19 for fixing the brace is welded to the upper end on the center line of the brace mounting surface (A) 33 of the first steel column 9, and the upper and lower center plates for fixing the brace are welded to the center of the upper and lower parts. 20 and the position of the lower end plate 21 for fixing the brace, which is welded to the lower end, is clearly shown in a perspective view.

図4は、図2で説明した鉄骨構造1階用耐震M形フレーム5の上部に取り付けた大梁(A)6、大梁(B)7と、さらに下部のアンカーボルト11と基礎コンクリート12を除外した状態を斜視図で示す。このように構成した鉄骨構造1階用耐震M形フレーム5を工場で組立治具を用いて組み立てることにより、組立精度を高めた鉄骨構造1階用耐震M形フレーム5を安価に製造することが可能になった。 Figure 4 excludes the girders (A) 6 and girders (B) 7 attached to the top of the earthquake-resistant M-shaped frame 5 for the first floor of the steel structure described in Fig. 2, as well as the anchor bolts 11 and foundation concrete 12 at the bottom. The state is shown in a perspective view. By assembling the earthquake-resistant M-shaped frame 5 for the first floor of a steel-frame structure constructed in this way using an assembly jig in a factory, it is possible to manufacture the earthquake-resistant M-shape frame 5 for the first floor of a steel-frame structure at a low cost with improved assembly accuracy. It's now possible.

図5は、図2で説明した鉄骨構造1階用耐震M形フレーム5を分解図で示す。一辺が100mm、肉厚4.5mm、長さ約1926mmの正方形の角形鋼管で成形した第1の鉄骨柱9の上端の鉄骨柱上端部(A)68に溶接接合するため、一辺が100mm、厚さ9mmの正方形の平板鋼板に4個のボルト穴37を概ね正方形状に成形した上端部エンドプレート36と、さらに前記上端部エンドプレート36に成形した4個のボルト穴37の下面の鉄骨柱取付面(A)67に溶接接合するための4個の梁固定用ナット70と、さらに前記第1の鉄骨柱9のプレート取付面(A)33の上端部に溶接接合する同一形状で成形した2枚のブレース固定用上端部プレート19と、さらに第1の鉄骨柱9のプレート取付面(A)33の上下中央部に溶接接合する同一形状で成形した2枚のブレース固定用上下中央部プレート20と、さらに第1の鉄骨柱9の下端部に溶接接合する同一形状で成形した2枚のブレース固定用下端部プレート21と、さらに第2の鉄骨柱10の上端の鉄骨柱上端部(B)75に溶接接合するため、縦寸法約100mm、横寸法約270mm、厚さ9mmの長方形で成形した平板鋼板の概ね四隅に4個のボルト穴38を成形した梁固定用プレート31と、さらに前記第2の鉄骨柱10のプレート取付面(B)32の中心線上の上端から4分の1の位置に溶接接合するため同一形状で成形した2枚のブレース固定用上側プレート22と、さらに前記第2の鉄骨柱10のプレート取付面(B)32の中心線上の下端から4分の1の位置に溶接するため同一形状で成形した2枚のブレース固定用下側プレート23と、さらに第1の鉄骨柱9の鉄骨柱下端部(A)76と第2の鉄骨柱10の鉄骨柱下端部(B)82をH型鋼で成形した下部梁フレーム28のフランジ面の両端部に溶接接合して固定するため、高さ寸法200mm、辺寸法100mm、フランジ厚さ8mm、ウェブ厚さ5.5mm、長さ約900mmのH型鋼で成形した下部梁フレーム28を分解図で示す。 FIG. 5 shows an exploded view of the earthquake-resistant M-shaped frame 5 for the first floor of a steel structure explained in FIG. Since it is welded to the upper end of the steel column (A) 68 at the upper end of the first steel column 9, which is made of a square steel tube with a side of 100 mm, a wall thickness of 4.5 mm, and a length of approximately 1926 mm, the side of the first steel column 9 is 100 mm thick, and the thickness is 4.5 mm. The upper end end plate 36 is formed by forming four bolt holes 37 into a roughly square shape on a square flat steel plate with a diameter of 9 mm, and the lower surface of the four bolt holes 37 is attached to the steel column. Four beam fixing nuts 70 to be welded to the surface (A) 67, and two molded in the same shape to be welded to the upper end of the plate mounting surface (A) 33 of the first steel column 9. Two upper end plates 19 for fixing braces, and two upper and lower center plates 20 for fixing braces molded in the same shape to be welded to the upper and lower center portions of the plate mounting surface (A) 33 of the first steel column 9. Furthermore, two brace fixing lower end plates 21 molded in the same shape are welded to the lower end of the first steel column 9, and the upper end (B) of the steel column at the upper end of the second steel column 10. 75, a beam fixing plate 31 is formed by forming four bolt holes 38 in approximately the four corners of a flat steel plate formed into a rectangle with a vertical dimension of about 100 mm, a horizontal dimension of about 270 mm, and a thickness of 9 mm; Two upper brace fixing plates 22 formed in the same shape for welding and joining at a position one quarter from the upper end on the center line of the plate mounting surface (B) 32 of the second steel column 10; Two lower brace fixing plates 23 formed in the same shape to be welded to a quarter position from the lower end on the center line of the plate mounting surface (B) 32 of the steel frame column 10, and the first steel frame The lower end (A) 76 of the steel column of the column 9 and the lower end (B) 82 of the second steel column 10 are welded and fixed to both ends of the flange surface of the lower beam frame 28 formed from H-shaped steel. Therefore, an exploded view shows a lower beam frame 28 formed from H-shaped steel having a height of 200 mm, a side dimension of 100 mm, a flange thickness of 8 mm, a web thickness of 5.5 mm, and a length of approximately 900 mm.

さらに図5では、第1の鉄骨柱9と第2の鉄骨柱10の上部に溶接接合した上端部エンドプレート36と梁固定プレート31をL字形に直角に固定した大梁(A)6の大梁下側フランジ(A)55と大梁7の大梁下側フランジ(B)64に取り付けるため、第1の鉄骨柱9の上端部エンドプレート36に成形した4個のボルト穴37と相対する大梁下側フランジ(A)55の位置に4個のボルト穴57を成形すると共に、上端部エンドプレート36の下面に溶接接合した4個の梁固定用ナット70に差し込み大梁(A)6の大梁下側フランジ(A)55と上端部エンドプレート36を固定するための4本のボルト18を示す。同様に、第2の鉄骨柱10の梁固定用プレート31に成形した4個のボルト穴38と相対する大梁下側フランジ(B)64の位置に4個のボルト穴65を成形すると共に、梁固定用プレート31に大梁(A)7の大梁下側フランジ(B)64を固定するための4本のボルト30と4個のナット73を分解図で示す。 Furthermore, in FIG. 5, the upper end plate 36 welded to the upper part of the first steel column 9 and the second steel column 10 and the beam fixing plate 31 are fixed at right angles in an L shape under the girder (A) 6. In order to attach the side flange (A) 55 to the girder lower flange (B) 64 of the girder 7, the girder lower flange faces the four bolt holes 37 formed in the upper end plate 36 of the first steel column 9. (A) Four bolt holes 57 are formed at positions 55, and the bolts are inserted into the four beam fixing nuts 70 welded to the lower surface of the upper end plate 36 to the lower girder flange of girder (A) 6 ( A) Four bolts 18 are shown for fixing 55 and upper end plate 36. Similarly, four bolt holes 65 are formed in the girder lower flange (B) 64 opposite to the four bolt holes formed in the beam fixing plate 31 of the second steel column 10, and the beam An exploded view shows four bolts 30 and four nuts 73 for fixing the girder lower flange (B) 64 of the girder (A) 7 to the fixing plate 31.

図6は、図2で説明した鉄骨構造1階用耐震M形フレーム5を正面図で示すと共に、図6a~図6eの拡大図で、第1の鉄骨柱9のプレート取付面(A)33に溶接接合したブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース固定用下端部プレート21と、第2の鉄骨柱10のプレート取付面(B)32に溶接接合したブレース固定用上側プレート22、ブレース固定用下側プレート23を拡大図で示す。 FIG. 6 shows a front view of the earthquake-resistant M-shaped frame 5 for the first floor of a steel frame structure described in FIG. 2, and is an enlarged view of FIGS. The upper end plate 19 for fixing the brace welded to, the upper and lower center plate 20 for fixing the brace, the lower end plate 21 for fixing the brace welded to the plate mounting surface (B) 32 of the second steel column 10, and the brace fixing plate welded to the plate mounting surface (B) 32 of the second steel column 10. The upper plate 22 for fixing the brace and the lower plate 23 for fixing the brace are shown in an enlarged view.

図6aは、第1の鉄骨柱9を点線で示すと共に、第1の鉄骨柱9の上端部のプレート取付面(A)33に溶接接合したブレース固定用上端部プレート19を実線で示す。ブレース固定用上端部プレート19は、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した第1のブレース24の端部をサンドイッチ状に固定して第1の鉄骨柱9のプレート取付面(A)33に固定するため同一形状で成形した2枚の厚さ6mmの四角形状のプレートで、辺(A)95の寸法は約81mm、辺(B)96の寸法は約99mm、辺(C)97の寸法は約70mm、鉄骨柱取付部98の寸法は約140mm、さらに辺(A)95と辺(B)96の交わる角度Aは約240度、辺(B)96と辺(C)97の交わる角度は90度、辺(C)97と鉄骨柱取付部98の交わる角度は90度、鉄骨柱取付部98と辺(A)95の交わる角度Bは約300度で成形され、辺(A)95と鉄骨柱取付部98の交わる先端をプレート取付面(A)33の上端に位置するように配置し鉄骨柱取付部98をプレート取付面(A)33に溶接接合した状態を示す。 In FIG. 6a, the first steel column 9 is shown in dotted lines, and the upper end plate 19 for fixing the brace, which is welded to the plate attachment surface (A) 33 at the upper end of the first steel column 9, is shown in solid lines. The upper end plate 19 for fixing the brace secures the end of the first brace 24 made of a square steel tube with a side of 80 mm and a wall thickness of 2.3 mm in a sandwich shape, and attaches the plate to the first steel column 9. Two square plates with a thickness of 6 mm molded in the same shape to be fixed to the surface (A) 33, the dimension of the side (A) 95 is about 81 mm, the dimension of the side (B) 96 is about 99 mm, The dimensions of (C) 97 are approximately 70 mm, the dimensions of the steel column mounting portion 98 are approximately 140 mm, and the angle A at which side (A) 95 and side (B) 96 intersect is approximately 240 degrees, and the angle A between side (B) 96 and side ( The angle at which C) 97 intersects is 90 degrees, the angle at which side (C) 97 and steel column attachment part 98 intersect is 90 degrees, and the angle B at which steel column attachment part 98 and side (A) 95 intersect is approximately 300 degrees. , the tip of the intersection of the side (A) 95 and the steel column attachment part 98 is arranged so as to be located at the upper end of the plate attachment surface (A) 33, and the steel column attachment part 98 is welded to the plate attachment surface (A) 33. shows.

図6bは、第1の鉄骨柱9を点線で示すと共に、第1の鉄骨柱9のプレート取付面(A)33の上下中央に溶接接合したブレース固定用上下中央部プレート20を実線で示す。ブレース固定用上下中央部プレート20は、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した第2のブレース25と第3のブレース26の端部をサンドイッチ状に固定して第1の鉄骨柱9のプレート取付面(A)33に固定するため同一形状で成形した2枚の厚さ6mmの長方形のプレートで、辺(E)99の寸法は約70mm、辺(F)100の寸法は約230mm、辺(G)101の寸法は約70mm、鉄骨柱取付部102の寸法は約230mmで成形され、プレート取付面(A)33の上下中央に鉄骨柱取付部102の上下中央部を当接させ溶接接合した状態を示す。 FIG. 6b shows the first steel column 9 in dotted lines, and also shows in solid lines the upper and lower center plate 20 for fixing the brace, which is welded to the upper and lower center of the plate attachment surface (A) 33 of the first steel column 9. The upper and lower center plates 20 for fixing braces are made by fixing the ends of a second brace 25 and a third brace 26, which are made of a square steel tube with a side of 80 mm and a wall thickness of 2.3 mm, in a sandwich shape. Two rectangular plates with a thickness of 6 mm formed in the same shape to be fixed to the plate mounting surface (A) 33 of the steel column 9 of The dimension is approximately 230 mm, the dimension of the side (G) 101 is approximately 70 mm, and the dimension of the steel column attachment part 102 is approximately 230 mm. This shows the state where they are brought into contact and welded together.

図6cは、第1の鉄骨柱9を点線で示すと共に、第1の鉄骨柱9の下端部のプレート取付面(A)33に溶接接合したブレース固定用下端部プレート21を実線で示す。ブレース固定用下端部プレート21は、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した第4のブレース27の端部をサンドイッチ状に固定して第1の鉄骨柱9のプレート取付面(A)33に固定するため同一形状で成形した2枚の厚さ6mmの長方形のプレートで、辺(I)103の寸法は約70mm、辺(J)104の寸法は約110mm、辺(K)105の寸法は約70mm、鉄骨柱取付部106の寸法は約110mmで、プレート取付面(A)33の下端に辺(K)105と鉄骨柱取付部106の交わる先端を当接するように配置し、鉄骨柱取付部106をプレート取付面(A)33に溶接接合した状態を示す。 In FIG. 6c, the first steel column 9 is shown in dotted lines, and the lower end plate 21 for fixing the brace, which is welded to the plate attachment surface (A) 33 at the lower end of the first steel column 9, is shown in solid lines. The lower end plate 21 for fixing the brace secures the end of the fourth brace 27 made of a square steel tube with a side of 80 mm and a wall thickness of 2.3 mm in a sandwich shape, and attaches the plate to the first steel column 9. Two rectangular plates with a thickness of 6 mm molded in the same shape to be fixed to the surface (A) 33, the dimension of the side (I) 103 is about 70 mm, the dimension of the side (J) 104 is about 110 mm, and the side ( The dimension of K) 105 is approximately 70 mm, and the dimension of the steel column attachment part 106 is approximately 110 mm, so that the end of the intersection of the side (K) 105 and the steel column attachment part 106 is in contact with the lower end of the plate attachment surface (A) 33. A state in which the steel column mounting portion 106 is welded to the plate mounting surface (A) 33 is shown.

図6dは、第2の鉄骨柱10を点線で示すと共に、第2の鉄骨柱10の上端から4分の1の位置のプレート取付面(B)32に溶接接合したブレース固定用上側プレート22を実線で示す。ブレース固定用上側プレート22は、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した第1のブレース24と第2のブレース25の端部をサンドイッチ状に固定して第2の鉄骨柱10のプレート取付面32に固定するため同一形状で成形した2枚の厚さ6mmの長方形のプレートで、辺(M)107の寸法は約70mm、辺(P)110の寸法は約230mm、辺(O)109の寸法は約70mm、鉄骨柱取付部108の寸法は約230mmで、プレート取付面(B)32の上端から4分の1の位置に鉄骨柱取付部108の上下中央部を当接させ溶接接合させた状態を示す。 FIG. 6d shows the second steel column 10 with dotted lines, and also shows the upper brace fixing plate 22 welded to the plate attachment surface (B) 32 at a position one-fourth from the top of the second steel column 10. Indicated by solid line. The upper plate 22 for fixing the braces is constructed by fixing the ends of a first brace 24 and a second brace 25, which are made of a square steel tube with a side of 80 mm and a wall thickness of 2.3 mm, in a sandwich-like manner. Two rectangular plates with a thickness of 6 mm molded in the same shape to be fixed to the plate mounting surface 32 of the pillar 10, the dimension of the side (M) 107 is about 70 mm, the dimension of the side (P) 110 is about 230 mm, The dimension of the side (O) 109 is approximately 70 mm, and the dimension of the steel column mounting portion 108 is approximately 230 mm. This shows the state where they are brought into contact and welded together.

図6eは、第2の鉄骨柱10を点線で示すと共に、第2の鉄骨柱10の下端から4分の1の位置のプレート取付面(B)32に溶接接合したブレース固定用下側プレート23を実線で示す。ブレース固定用下側プレート23は、一辺が80mm、肉厚2.3mmの正方形の角形鋼管で成形した第3のブレース26と第4のブレース27の端部をサンドイッチ状に固定して第2の鉄骨柱10に固定するため同一形状で成形した2枚の厚さ6mmの長方形のプレートで、辺(Q)111の寸法は約70mm、辺(T)114の寸法は約230mm、辺(S)113の寸法は約70mm、鉄骨柱取付部112の寸法は約230mmで、プレート取付面(B)32の下端から4分の1の位置に鉄骨柱取付部112の上下中央部を当接させ溶接接合した状態を示す。 FIG. 6e shows the second steel column 10 with dotted lines, and the lower plate 23 for fixing the brace welded to the plate attachment surface (B) 32 at a position one-fourth from the lower end of the second steel column 10. is shown by a solid line. The lower plate 23 for fixing braces is made by fixing the ends of a third brace 26 and a fourth brace 27, which are made of a square steel tube with a side of 80 mm and a wall thickness of 2.3 mm, in a sandwich shape. Two rectangular plates with a thickness of 6 mm formed in the same shape to be fixed to the steel column 10, the dimension of the side (Q) 111 is approximately 70 mm, the dimension of the side (T) 114 is approximately 230 mm, and the dimension of the side (S) 113 is about 70 mm, and the steel column attachment part 112 is about 230 mm, and the upper and lower center parts of the steel column attachment part 112 are brought into contact with a quarter position from the lower end of the plate attachment surface (B) 32 and welded. Shows the joined state.

図7は、図4で説明した鉄骨構造1階用耐震M形フレーム5のブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース取付用下端部プレート21、ブレース固定用上側プレート22、ブレース固定用下側プレート23に、4本の第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27を溶接接合した状態を正面図で示すと共に、図7a~図7eの拡大図で、第1の鉄骨柱9のプレート取付面(A)33に取り付けたブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース固定用下端部プレート21に溶接接合した第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27と、さらに第2の鉄骨柱10のプレート取付面(B)32に取り付けたブレース固定用上側プレート22、ブレース固定用下側プレート23に溶接接合した第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27を拡大図で示す。 FIG. 7 shows the upper end plate 19 for fixing braces, the upper and lower center plates 20 for fixing braces, the lower end plate 21 for attaching braces, and the upper plate for fixing braces of the earthquake-resistant M-shaped frame 5 for the first floor of a steel structure explained in FIG. 22. A front view shows a state in which four first braces 24, a second brace 25, a third brace 26, and a fourth brace 27 are welded and joined to the lower plate 23 for fixing braces, and FIG. 7a to 7e, the upper end plate 19 for fixing the brace attached to the plate attachment surface (A) 33 of the first steel column 9, the upper and lower center plates 20 for fixing the brace, and the lower end plate 21 for fixing the brace are shown in the enlarged views of FIGS. 7a to 7e. The first brace 24, second brace 25, third brace 26, fourth brace 27 welded to The first brace 24, second brace 25, third brace 26, and fourth brace 27 welded to the upper plate 22 and the lower brace fixing plate 23 are shown in an enlarged view.

図7aは、同一形状で成形した2枚のブレース固定用上端部プレート19の間に第1のブレース24の端部をサンドイッチ状に挟み込み固定した状態を点線で示す。重ね幅(A)130は第1のブレース24の辺(BB)181(図8で示す)をブレース固定用上端部プレート19の辺(A)95(図6aで示す)に当接させて溶接接合するため重ねた部分で、重ね幅(A)130は約12mmである。同様に、重ね幅(B)131は第1のブレース24を2枚のブレース固定用上端部プレート19でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(B)131の寸法は約58mmである。 FIG. 7a shows a state in which the end of the first brace 24 is sandwiched and fixed between two upper end plates 19 for fixing the brace, which are molded in the same shape, with dotted lines. The overlap width (A) 130 is determined by welding the side (BB) 181 (shown in FIG. 8) of the first brace 24 against the side (A) 95 (shown in FIG. 6a) of the upper end plate 19 for fixing the brace. The overlap width (A) 130 at the overlapped portion for joining is approximately 12 mm. Similarly, the overlap width (B) 131 is the portion where the first brace 24 is sandwiched between the two upper end plates 19 for fixing the brace and overlapped for welding. The dimensions are approximately 58 mm.

図7bは、同一形状で成形した2枚のブレース固定用上下中央部プレート20の間に第2のブレース25と第3のブレース26の端部をサンドイッチ状に挟み込み固定した状態を点線で示す。重ね幅(C)132は第2のブレース25の辺(FF)185(図8で示す)を図6bで説明した辺(E)99と辺(F)100が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用上下中央部プレート20でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(C)132の寸法は約61mmである。同様に、重ね幅(D)133は第2のブレース25の辺(GG)186(図8で示す)を2枚のブレース固定用上下中央部プレート20でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(D)133の寸法は約12mmである。さらに重ね幅(E)134は第3のブレース26の辺(JJ)189(図8で示す)を2枚のブレース固定用上下中央部プレート20でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(E)134の寸法は約12mmである。同様に、重ね幅(F)135は第3のブレース26の辺(KK)190(図8で示す)を図6bで説明した辺(F)100と辺(G)101が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用上下中央部プレート20でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(F)135の寸法は約61mmである。 FIG. 7b shows a state in which the ends of the second brace 25 and the third brace 26 are sandwiched and fixed between two upper and lower middle plates 20 for fixing braces molded in the same shape, with dotted lines. The overlap width (C) 132 is arranged so that the side (FF) 185 (shown in FIG. 8) of the second brace 25 touches the tip where the side (E) 99 and the side (F) 100 intersect as described in FIG. 6b. However, the overlapping width (C) 132 shown by the dotted line is approximately 61 mm at the overlapped portion for sandwiching and welding two brace fixing upper and lower center plates 20 molded in the same shape. Similarly, the overlap width (D) 133 is determined by sandwiching the side (GG) 186 (shown in FIG. 8) of the second brace 25 between the two upper and lower center plates 20 for fixing the brace and overlapping them to weld and join them. The overlapping width (D) 133 shown by the dotted line in the portion is approximately 12 mm. Furthermore, the overlap width (E) 134 is the overlapped portion where the side (JJ) 189 (shown in FIG. 8) of the third brace 26 is sandwiched between the two upper and lower center plates 20 for fixing the brace and welded and joined. , the overlap width (E) 134 indicated by the dotted line is approximately 12 mm. Similarly, the overlap width (F) 135 is such that the side (KK) 190 (shown in Figure 8) of the third brace 26 touches the tip where side (F) 100 and side (G) 101 intersect as described in Figure 6b. The overlapping width (F) 135 shown by the dotted line is about 61 mm, which is the overlapped part for sandwiching and welding the two brace fixing upper and lower center plates 20 molded in the same shape. be.

図7cは、同一形状で成形した2枚のブレース固定用下端部プレート21の間に第4のプレース27の端部をサンドイッチ状に挟み込み固定した状態を点線で示す。第4のブレース27の端部を2枚のブレース固定用下端部プレート21でサンドイッチ状に挟み込み溶接接合するため、第4のブレース27の辺(NN)193(図8で示す)を図6cで説明した辺(I)103と辺(J)104が交わる先端部と接するように配置した状態を示す。ブレース固定用下端部プレート21と第4のブレース27の点線で示す重ね幅(G)136の寸法は約62mmである。同様に、重ね幅(H)137は第4のブレース27を2枚のブレース固定用下端部プレート21でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(H)137の寸法は約12mmである。 FIG. 7c shows a state in which the end of the fourth place 27 is sandwiched and fixed between two brace fixing lower end plates 21 molded in the same shape, with dotted lines. In order to sandwich and weld the ends of the fourth brace 27 between the two lower end plates 21 for fixing the braces, the sides (NN) 193 (shown in FIG. 8) of the fourth brace 27 are shown in FIG. 6c. A state in which the described side (I) 103 and side (J) 104 are arranged so as to be in contact with the intersecting tip portion is shown. The overlap width (G) 136 shown by the dotted line between the lower end plate 21 for fixing the brace and the fourth brace 27 is about 62 mm. Similarly, the overlap width (H) 137 is the portion where the fourth brace 27 is sandwiched between the two lower end plates 21 for fixing the brace and overlapped for welding. The dimensions are approximately 12 mm.

図7dは、同一形状で成形した2枚のブレース固定用上側プレート22の間に第1のブレース24と第2のブレース25の端部をサンドイッチ状に挟み込み固定した状態を点線で示す。重ね幅(I)138は第1のブレース24の辺(BB)181(図8で示す)を図6dで説明した辺(M)107と辺(P)110が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用上側プレート22でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(I)138の寸法は約58mmである。同様に、重ね幅(J)139は第1のブレース24の辺(CC)182(図8で示す)を2枚のブレース固定用上側プレート22でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(J)139の寸法は約12mmである。さらに重ね幅(K)140は第2のブレース25の辺(FF)185(図8で示す)を2枚のブレース固定用上側プレート22でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(K)140の寸法は約12mmである。同様に、重ね幅(L)141は第2のブレース25の辺(GG)186(図8で示す)を図6dで説明した辺(P)110と辺(O)109が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用上側プレート22でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、重ね幅(L)141の寸法は約61mmである。 FIG. 7d shows a state in which the ends of the first brace 24 and the second brace 25 are sandwiched and fixed between two upper plates 22 for fixing braces molded in the same shape, in a dotted line. The overlap width (I) 138 is arranged so that the side (BB) 181 (shown in FIG. 8) of the first brace 24 is in contact with the tip where the side (M) 107 and the side (P) 110 intersect as described in FIG. 6d. However, the overlapping width (I) 138 shown by the dotted line is approximately 58 mm at the portion where two upper brace fixing plates 22 molded in the same shape are sandwiched and overlapped for welding and joining. Similarly, the overlap width (J) 139 is the overlapped portion where the side (CC) 182 (shown in FIG. 8) of the first brace 24 is sandwiched between two upper brace fixing plates 22 and welded together. , the overlap width (J) 139 indicated by the dotted line is about 12 mm. Furthermore, the overlap width (K) 140 is the portion where the side (FF) 185 (shown in FIG. 8) of the second brace 25 is sandwiched between the two upper plates 22 for fixing the brace and overlapped for welding and joining. The overlap width (K) 140 indicated by is approximately 12 mm. Similarly, the overlap width (L) 141 is such that the side (GG) 186 (shown in FIG. 8) of the second brace 25 touches the tip of the intersection of the side (P) 110 and the side (O) 109 described in FIG. 6d. The overlapping width (L) 141 is about 61 mm in the overlapped portion for sandwiching and welding the two upper brace fixing plates 22 formed in the same shape.

図7eは、同一形状で成形した2枚のブレース固定用下側プレート23の間に第3のブレース26と第4のブレース27の端部をサンドイッチ状に挟み込み固定した状態を点線で示す。重ね幅(M)142は第3のブレース26の辺(JJ)189(図8で示す)を図6eで説明した辺(Q)111と辺(T)114が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用下側プレート23でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(M)142の寸法は約61mmである。同様に、重ね幅(N)143は第3のブレース26の辺(KK)190(図8で示す)を2枚のブレース固定用下側プレート23でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(N)143の寸法は約12mmである。さらに重ね幅(O)144は第4のブレース27の辺(NN)193(図8で示す)を2枚のブレース固定用下側プレート23でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(O)144の寸法は約12mmである。同様に、重ね幅(P)145は第4のブレース27の辺(OO)194(図8で示す)を図6eで説明した辺(T)114と辺(S)113が交わる先端部と接するように配置し、同一形状で成形した2枚のブレース固定用下側プレート23でサンドイッチ状に挟み込み溶接接合するため重ねた部分で、点線で示す重ね幅(P)145の寸法は約62mmである。 FIG. 7e shows a state in which the ends of the third brace 26 and the fourth brace 27 are sandwiched and fixed between two lower brace fixing plates 23 molded in the same shape, with dotted lines. The overlap width (M) 142 is arranged so that the side (JJ) 189 (shown in FIG. 8) of the third brace 26 is in contact with the tip where the side (Q) 111 and the side (T) 114 intersect as described in FIG. 6e. However, the overlapping width (M) 142 shown by the dotted line is approximately 61 mm at the overlapped portion for sandwiching and welding the two lower brace fixing plates 23 molded in the same shape. Similarly, the overlap width (N) 143 is the portion where the side (KK) 190 (shown in FIG. 8) of the third brace 26 is sandwiched between two lower plates 23 for fixing the brace and overlapped for welding. The overlap width (N) 143 indicated by the dotted line is about 12 mm. Furthermore, the overlap width (O) 144 is the overlapped portion where the side (NN) 193 (shown in FIG. 8) of the fourth brace 27 is sandwiched between two lower plates 23 for fixing the brace and welded together. The dimension of the overlap width (O) 144 shown by the dotted line is about 12 mm. Similarly, the overlap width (P) 145 is such that the edge (OO) 194 (shown in FIG. 8) of the fourth brace 27 touches the tip where the edge (T) 114 and the edge (S) 113 intersect as illustrated in FIG. 6e. The overlapping width (P) 145 shown by the dotted line is approximately 62 mm at the overlapped portion for sandwiching and welding the two lower brace fixing plates 23 molded in the same shape. .

さらに図7の溶接部(A)146、溶接部(B)148、溶接部(C)156、溶接部(D)150、溶接部(E)152、溶接部(F)158、溶接部(G)160、溶接部(H)155は、第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27を各々2枚のブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース固定用下端部プレート21、ブレース固定用上側プレート22、ブレース固定用下側プレート23に溶接接合して固定する位置を示す。 Furthermore, welding area (A) 146, welding area (B) 148, welding area (C) 156, welding area (D) 150, welding area (E) 152, welding area (F) 158, welding area (G) in FIG. ) 160, welding part (H) 155 connects the first brace 24, second brace 25, third brace 26, and fourth brace 27 to two upper end plates 19 for fixing braces, and two upper end plates 19 for fixing braces, respectively. The positions where the parts are welded and fixed to the upper and lower center plates 20, the lower end plate 21 for fixing the brace, the upper plate 22 for fixing the brace, and the lower plate 23 for fixing the brace are shown.

図8は、図7で説明した鉄骨構造1階用耐震M形フレーム5の第1の鉄骨柱9、第2の鉄骨柱10、ブレース固定用上端部プレート19、ブレース固定用上下中央部プレート20、ブレース固定用下端部プレート21、ブレース固定用上側プレート22、ブレース固定用下側プレート23と、第1のブレース24、第2のブレース25、第3のブレース26、第4のブレース27と、下端部フレーム28を分解した状態を正面図で示す。第1のブレース24は、一辺が約80mm、肉厚2.3mm、長さ約718mmの正方形の角形鋼管で成形し、両端部をブレース固定用上端部プレート19とブレース固定用上側プレート22に対して角度Cで示すように水平方向に対して約30.2度の角度で溶接接合される。同様に、第2のブレース25は、一辺が約80mm、肉厚2.3mm、長さ約731mmの正方形の角形鋼管で成形し、両端部をブレース固定用上側プレート22とブレース固定用上下中央部プレート20に対して角度Dで示すように水平方向に対して約31.7度の角度で溶接接合される。同様に、第3のブレース26は、一辺が約80mm、肉厚2.3mm、長さ約731mmの正方形の角形鋼管で成形し、両端部をブレース固定用上下中央部プレート20とブレース固定用下側プレート23に対して角度Eで示すように水平方向に対して約31.7度の角度で溶接接合される。同様に、第4のブレース27は、一辺が約80mm、肉厚2.3mm、長さ約735mmの角形鋼管で成形し、両端部をブレース固定用下側プレート23と、ブレース固定用下端部プレート21に対して角度Fで示すように水平方向に対して約32.1度の角度で溶接接合される。 FIG. 8 shows the first steel column 9, the second steel column 10, the upper end plate 19 for fixing the brace, and the upper and lower center plates 20 for fixing the brace of the earthquake-resistant M-shaped frame 5 for the first floor of the steel structure explained in FIG. , a lower end plate 21 for fixing a brace, an upper plate 22 for fixing a brace, a lower plate 23 for fixing a brace, a first brace 24, a second brace 25, a third brace 26, a fourth brace 27, The lower end frame 28 is shown in an exploded front view. The first brace 24 is formed from a square steel tube with a side of about 80 mm, a wall thickness of 2.3 mm, and a length of about 718 mm, and both ends are attached to the upper end plate 19 for fixing the brace and the upper plate 22 for fixing the brace. They are welded together at an angle of about 30.2 degrees with respect to the horizontal direction, as shown by angle C. Similarly, the second brace 25 is formed from a square steel tube with a side of about 80 mm, a wall thickness of 2.3 mm, and a length of about 731 mm, and both ends are connected to the upper plate 22 for fixing the brace and the upper and lower center parts for fixing the brace. The plate 20 is welded to the plate 20 at an angle of about 31.7 degrees with respect to the horizontal direction, as shown by angle D. Similarly, the third brace 26 is formed from a square steel tube with a side of about 80 mm, a wall thickness of 2.3 mm, and a length of about 731 mm, and both ends are connected to the upper and lower center plates 20 for fixing the brace and the lower part for fixing the brace. It is welded to the side plate 23 at an angle of about 31.7 degrees with respect to the horizontal direction, as shown by angle E. Similarly, the fourth brace 27 is formed from a square steel tube with a side of about 80 mm, a wall thickness of 2.3 mm, and a length of about 735 mm, and both ends are connected to the lower plate 23 for fixing the brace and the lower end plate for fixing the brace. 21 is welded at an angle of about 32.1 degrees with respect to the horizontal direction, as shown by angle F.

以上、実施の形態に基づいて、本発明に係る鉄骨構造1階用耐震M形フレームについて詳細に説明してきたが、本発明は、以上の実施の形態に限定されるものではなく、発明の趣旨を逸脱しない範囲において各種の改変をなしても、本発明の技術的範囲に属するのはもちろんである。 Although the earthquake-resistant M-shaped frame for the first floor of a steel frame structure according to the present invention has been described above in detail based on the embodiments, the present invention is not limited to the above embodiments, and the gist of the invention It goes without saying that even if various modifications are made without departing from the above, they still fall within the technical scope of the present invention.

本発明の実施の形態に係る、鉄骨造の建物を建築するための鉄骨構造を正面図で示す。1 is a front view showing a steel structure for constructing a steel frame building according to an embodiment of the present invention. 同実施の形態に係る、図1で示した鉄骨構造の1階部分に施工した鉄骨構造1階用耐震M形フレームを斜視図で示す。FIG. 2 shows a perspective view of an earthquake-resistant M-shaped frame for the first floor of the steel structure constructed on the first floor of the steel structure shown in FIG. 1 according to the same embodiment. 同実施の形態に係る、図2で示した鉄骨構造1階用耐震M形フレームを逆方向から見た状態を斜視図で示す。FIG. 3 is a perspective view showing the earthquake-resistant M-shaped frame for the first floor of the steel structure shown in FIG. 2, according to the same embodiment, as viewed from the opposite direction. 同実施の形態に係る、図2で示した鉄骨構造1階用耐震M形フレームから大梁と基礎コンクリートを除いた状態を斜視図で示す。FIG. 3 is a perspective view showing a state in which the girder and foundation concrete are removed from the earthquake-resistant M-shaped frame for the first floor of the steel structure shown in FIG. 2 according to the same embodiment. 同実施の形態に係る、図2で示した鉄骨構造1階用耐震M形フレームを分解図で示す。An exploded view shows the earthquake-resistant M-shaped frame for the first floor of the steel structure shown in FIG. 2 according to the same embodiment. 同実施の形態に係る、図2で示した鉄骨構造1階用耐震M形フレームを正面図で示す。The earthquake-resistant M-shaped frame for the first floor of the steel structure shown in FIG. 2 is shown in a front view according to the same embodiment. 同実施の形態に係る、図6で示した鉄骨構造1階用耐震M形フレームのプレートにブレースを溶接接合した状態を正面図で示す。FIG. 7 is a front view showing a state in which a brace is welded to a plate of the earthquake-resistant M-shaped frame for the first floor of a steel structure shown in FIG. 6 according to the same embodiment. 同実施の形態に係る、図7で示した鉄骨構造1階用耐震M形フレームのプレートとブレースを分解した状態を分解図で示す。An exploded view showing a state in which the plates and braces of the earthquake-resistant M-shaped frame for the first floor of the steel structure shown in FIG. 7 are disassembled according to the same embodiment.

A 角度
B 角度
C 角度
D 角度
E 角度
F 角度
1 鉄骨構造
2 鉄骨構造4階用耐震M形フレーム
3 鉄骨構造3階用耐震M形フレーム
4 鉄骨構造2階用耐震M形フレーム
5 鉄骨構造1階用耐震M形フレーム
6 大梁(A)
7 大梁(B)
8 ALC壁パネル
9 第1の鉄骨柱
10 第2の鉄骨柱
11 アンカーボルト
12 基礎コンクリート
13 鉄骨構造1階用耐震M形フレーム
14 ALC板
15 FRP防水
16 ガセットプレート
17 ボルト
18 ボルト
19 ブレース固定用上端部プレート
20 ブレース固定用上下中央部プレート
21 ブレース固定用下端部プレート
22 ブレース固定用上側プレート
23 ブレース固定用下側プレート
24 第1のブレース
25 第2のブレース
26 第3のブレース
27 第4のブレース
28 下部梁フレーム
29 ナット
30 ボルト
31 梁固定用プレート
32 プレート取付面(B)
33 プレート取付面(A)
36 上端部エンドプレート
37 ボルト穴
38 ボルト穴
40 スチフナー(A)
41 アンカーボルト用穴(A)
42 アンカーボルト用穴(B)
43 スチフナー(B)
55 大梁下側フランジ(A)
56 ウェブ(A)
57 ボルト穴
63 ウェブ(B)
64 大梁下側フランジ(B)
65 ボルト穴
66 大梁取付面(A)
67 鉄骨柱取付面(A)
68 鉄骨柱上端部(A)
70 梁固定用ナット
71 大梁取付面(B)
73 ナット
74 鉄骨柱取付面(B)
75 鉄骨柱上端部(B)
76 鉄骨柱下端部(A)
77 鉄骨柱(A)取付面
80 ウェブ(C)
81 鉄骨柱(B)取付面
82 鉄骨柱下端部(B)
95 辺(A)
96 辺(B)
97 辺(C)
98 鉄骨柱取付部
99 辺(E)
100 辺(F)
101 辺(G)
102 鉄骨柱取付部
103 辺(I)
104 辺(J)
105 辺(K)
106 鉄骨柱取付部
107 辺(M)
108 鉄骨柱取付部
109 辺(O)
110 辺(P)
111 辺(Q)
112 鉄骨柱取付部
113 辺(S)
114 辺(T)
130 重ね幅(A)
131 重ね幅(B)
132 重ね幅(C)
133 重ね幅(D)
134 重ね幅(E)
135 重ね幅(F)
136 重ね幅(G)
137 重ね幅(H)
138 重ね幅(I)
139 重ね幅(J)
140 重ね幅(K)
141 重ね幅(L)
142 重ね幅(M)
143 重ね幅(N)
144 重ね幅(O)
145 重ね幅(P)
146 溶接部(A)
147 交点(A)
148 溶接部(B)
149 交点(B)
150 溶接部(D)
151 交点(D)
152 溶接部(E)
153 交点(E)
154 交点(H)
155 溶接部(H)
156 溶接部(C)
157 交点(C)
158 溶接部(F)
159 交点(F)
160 溶接部(G)
161 交点(G)
180 辺(AA)
181 辺(BB)
182 辺(CC)
183 辺(DD)
184 辺(EE)
185 辺(FF)
186 辺(GG)
187 辺(HH)
188 辺(II)
189 辺(JJ)
190 辺(KK)
191 辺(LL)
192 辺(MM)
193 辺(NN)
194 辺(OO)
195 辺(PP)
A Angle B Angle C Angle D Angle E Angle F Angle 1 Steel structure 2 Earthquake-resistant M-frame for steel structure 4th floor 3 Earthquake-resistant M-frame for steel structure 3rd floor 4 Earthquake-resistant M-frame for steel structure 2nd floor 5 Steel structure 1st floor Earthquake-resistant M-shaped frame 6 Large beam (A)
7 Large beam (B)
8 ALC wall panel 9 First steel column 10 Second steel column 11 Anchor bolt 12 Foundation concrete 13 Earthquake-resistant M-shaped frame for steel structure first floor 14 ALC board 15 FRP waterproofing 16 Gusset plate 17 Bolt 18 Bolt 19 Upper end for fixing braces part plate 20 upper and lower center plates for fixing braces 21 lower end plate for fixing braces 22 upper plate for fixing braces 23 lower plate for fixing braces 24 first brace 25 second brace 26 third brace 27 fourth brace 28 Lower beam frame 29 Nut 30 Bolt 31 Beam fixing plate 32 Plate mounting surface (B)
33 Plate mounting surface (A)
36 Upper end plate 37 Bolt hole 38 Bolt hole 40 Stiffener (A)
41 Anchor bolt hole (A)
42 Anchor bolt hole (B)
43 Stiffener (B)
55 Beam lower flange (A)
56 Web (A)
57 Bolt hole 63 Web (B)
64 Beam lower flange (B)
65 Bolt hole 66 Beam mounting surface (A)
67 Steel column mounting surface (A)
68 Upper end of steel column (A)
70 Beam fixing nut 71 Beam mounting surface (B)
73 Nut 74 Steel column mounting surface (B)
75 Upper end of steel column (B)
76 Lower end of steel column (A)
77 Steel column (A) mounting surface 80 Web (C)
81 Steel column (B) mounting surface 82 Lower end of steel column (B)
95 sides (A)
96 sides (B)
97 Side (C)
98 Steel column mounting part 99 Side (E)
100 sides (F)
101 Side (G)
102 Steel column attachment part 103 Side (I)
104 side (J)
105 sides (K)
106 Steel column attachment part 107 Side (M)
108 Steel column attachment part 109 Side (O)
110 sides (P)
111 Side (Q)
112 Steel column attachment part 113 Side (S)
114 side (T)
130 Overlapping width (A)
131 Overlap width (B)
132 Overlap width (C)
133 Overlap width (D)
134 Overlap width (E)
135 Overlapping width (F)
136 Overlapping width (G)
137 Overlapping width (H)
138 Overlapping width (I)
139 Overlap width (J)
140 Overlapping width (K)
141 Overlapping width (L)
142 Overlap width (M)
143 Overlap width (N)
144 Overlapping width (O)
145 Overlap width (P)
146 Welded part (A)
147 Intersection (A)
148 Welded part (B)
149 Intersection (B)
150 Welded part (D)
151 Intersection (D)
152 Welded part (E)
153 Intersection (E)
154 Intersection (H)
155 Welded part (H)
156 Welded part (C)
157 Intersection (C)
158 Welded part (F)
159 Intersection (F)
160 Welded part (G)
161 Intersection (G)
180 sides (AA)
181 side (BB)
182 sides (CC)
183 sides (DD)
184 sides (EE)
185 sides (FF)
186 sides (GG)
187 sides (HH)
188 side (II)
189 sides (JJ)
190 sides (KK)
191 side (LL)
192 sides (MM)
193 sides (NN)
194 sides (OO)
195 sides (PP)

Claims (4)

鉄骨構造の建物の耐震補強をするための耐震フレームにおいて、
同一形状の正方形の角形鋼管で成形した、平行する第1の鉄骨柱と第2の鉄骨柱と、
第1の鉄骨柱と第2の鉄骨柱の下端部に溶接接合したH型鋼で成形した下部梁フレームと、
第1の鉄骨柱の上端部に溶接接合した前記第1の鉄骨柱の断面と概ね同一寸法の平板鋼板で成形した上端部エンドプレートと、
第2の鉄骨柱の上端部に溶接接合した長方形の平板鋼板で成形した梁固定用プレートと、
第1の鉄骨柱のプレート取付面の上端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上端部プレートと、
第1の鉄骨柱のプレート取付面の上下中央部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上下中央部プレートと、
第1の鉄骨柱のプレート取付面の下端部に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下端部プレートと、
第2の鉄骨柱のプレート取付面の上端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用上側プレートと、
第2の鉄骨柱のプレート取付面の下端から4分の1の位置に溶接接合した、同一形状の平板鋼板で成形した2枚のブレース固定用下側プレートと、
第1の鉄骨柱に溶接接合した前記ブレース固定用上端部プレートと前記ブレース固定用上下中央部プレートと前記ブレース固定用下端部プレートと、向い合せに位置する第2の鉄骨柱に溶接接合した前記ブレース固定用上側プレートと前記ブレース固定用下側プレートに正方形の角形鋼管で成形した4本のブレースの両端部をM字形に溶接接合したことを特徴する鉄骨構造1階用耐震M形フレーム。
In earthquake-resistant frames for earthquake-proofing steel structure buildings,
A first steel column and a second parallel steel column made of square steel pipes having the same shape;
A lower beam frame formed of H-shaped steel welded to the lower ends of the first steel column and the second steel column;
an upper end end plate formed from a flat steel plate having approximately the same dimensions as the cross section of the first steel column, welded to the upper end of the first steel column;
A beam fixing plate formed from a rectangular flat steel plate welded to the upper end of the second steel column;
two upper end plates for fixing braces formed from flat steel plates of the same shape and welded to the upper end of the plate mounting surface of the first steel column;
two upper and lower center plates for fixing braces formed from flat steel plates of the same shape and welded to the upper and lower center portions of the plate mounting surface of the first steel column;
two lower end plates for fixing braces formed from flat steel plates of the same shape and welded to the lower end of the plate mounting surface of the first steel column;
two upper brace fixing plates formed from flat steel plates of the same shape, welded and joined at a position one-fourth from the upper end of the plate mounting surface of the second steel column;
two lower brace fixing plates formed from flat steel plates of the same shape, welded and joined at a position one-quarter from the lower end of the plate mounting surface of the second steel column;
The upper end plate for fixing the brace, the upper and lower center plates for fixing the brace, and the lower end plate for fixing the brace are welded to the first steel column, and the upper end plate for fixing the brace is welded to the second steel column located opposite to each other. An earthquake-resistant M-shaped frame for a first floor steel structure, characterized in that both ends of four braces formed from square steel pipes are welded to an upper plate for fixing braces and a lower plate for fixing braces in an M-shape.
前記下部梁フレームの下側フランジに成形した複数個の穴に、基礎コンクリートに設置した複数本のアンカーボルトをナットで固定したことを特徴とする請求項1に記載の鉄骨構造1階用耐震M形フレーム。 Earthquake-resistant M for a first floor steel structure according to claim 1, characterized in that a plurality of anchor bolts installed in the foundation concrete are fixed to a plurality of holes formed in the lower flange of the lower beam frame with nuts. shaped frame. 前記上端部エンドプレートに4個のボルト穴を正方形状に成形し、前記4個のボルト穴の鉄骨柱取付面に4個の梁固定用ナットを溶接接合したことを特徴とする請求項1又は2に記載の鉄骨構造1階用耐震M形フレーム。 2. The upper end plate has four bolt holes formed in a square shape, and four beam fixing nuts are welded to the steel column mounting surface of the four bolt holes. The earthquake-resistant M-shaped frame for the first floor of the steel structure described in 2. 前記梁固定用プレートに大梁をボルト、ナットで取り付けるため、前記梁固定用プレートの概ね四隅に成形した4個のボルト穴と相対する前記大梁の大梁下側フランジに4個のボルト穴を成形したことを特徴とする請求項1乃至3のいずれか1項に記載の鉄骨構造1階用耐震M形フレーム。 In order to attach the girder to the beam fixing plate with bolts and nuts, four bolt holes were formed in the lower flange of the girder opposite to the four bolt holes formed in approximately the four corners of the beam fixing plate. The earthquake-resistant M-shaped frame for a first floor steel structure according to any one of claims 1 to 3.
JP2022122980A 2022-07-13 2022-07-13 Earthquake-proof m-shaped frame for first floor of steel structure Pending JP2024012003A (en)

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