JP4616837B2 - Steel beam reinforcement bracket - Google Patents

Steel beam reinforcement bracket Download PDF

Info

Publication number
JP4616837B2
JP4616837B2 JP2006531103A JP2006531103A JP4616837B2 JP 4616837 B2 JP4616837 B2 JP 4616837B2 JP 2006531103 A JP2006531103 A JP 2006531103A JP 2006531103 A JP2006531103 A JP 2006531103A JP 4616837 B2 JP4616837 B2 JP 4616837B2
Authority
JP
Japan
Prior art keywords
steel beam
web
length
beam web
metal fitting
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 - Lifetime
Application number
JP2006531103A
Other languages
Japanese (ja)
Other versions
JPWO2006018865A1 (en
Inventor
英成 松尾
隆司 北野
建蔵 中野
秀治 大庭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Senqcia Corp
Original Assignee
Hitachi Metals Techno Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Metals Techno Ltd filed Critical Hitachi Metals Techno Ltd
Publication of JPWO2006018865A1 publication Critical patent/JPWO2006018865A1/en
Application granted granted Critical
Publication of JP4616837B2 publication Critical patent/JP4616837B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/065Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web with special adaptations for the passage of cables or conduits through the web
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452H- or I-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Description

本発明は、S構造(鉄骨構造)やSRC構造(鉄骨鉄筋コンクリート構造)における鉄骨梁の鉄骨梁ウエブに設けられた貫通孔に略嵌合されることによって、S構造およびSRC構造における鉄骨梁を補強する鉄骨梁補強金具に関する。   The present invention reinforces the steel beam in the S structure and the SRC structure by being substantially fitted into a through hole provided in the steel beam web of the steel beam in the S structure (steel structure) or SRC structure (steel reinforced concrete structure). The present invention relates to a steel beam reinforcing metal fitting.

建築物においては、その内部に配管や配線などを通すために、S構造やSRC構造における鉄骨梁の鉄骨梁ウエブに貫通孔を設けることがあるが、従来、貫通孔が設けられたS構造用の鉄骨梁を補強する次のようなS構造用鉄骨梁補強金具が提供された。すなわち、S構造の鉄骨梁に形成された貫通孔の周縁部に外周部が溶接固定されるリング状の補強金具であって、その軸方向の長さを半径方向の肉厚の0.5倍〜10.0倍とするS構造用鉄骨梁補強金具である。この補強金具によれば、S構造における鉄骨梁に設けられた貫通孔に対する配管の取り付けの自由度を高めることができ、S構造において、柱梁接合部に近い鉄骨梁の塑性化領域における貫通孔設置が可能となる(特許文献1参照)。
特開2003−232105号公報
In buildings, there are cases where through holes are provided in the steel beam web of the steel beam in the S structure or SRC structure in order to pass piping, wiring, etc. in the interior, but for the S structure conventionally provided with a through hole. The following steel structural steel beam reinforcing brackets for reinforcing steel beams were provided. That is, a ring-shaped reinforcing metal fitting whose outer peripheral portion is welded and fixed to the peripheral portion of a through-hole formed in an S-structure steel beam, the axial length of which is 0.5 times the radial thickness It is a steel beam reinforcing bracket for S structure that is ˜10.0 times. According to this reinforcing metal fitting, it is possible to increase the degree of freedom of pipe attachment to the through hole provided in the steel beam in the S structure. In the S structure, the through hole in the plasticized region of the steel beam close to the column beam joint Installation is possible (see Patent Document 1).
JP 2003-232105 A

しかしながら、この従来のS構造用鉄骨梁補強金具における溶接固定は、すみ肉溶接または突合せ溶接によって行われるところ、前者にあっては、単に、S構造用鉄骨梁補強金具の外周部の軸方向の両端部が貫通孔の周縁部に表側および裏側からそれぞれ全周にわたって溶接固定されるに過ぎず(特許文献1の段落[0028]、[0029]、図1など)、後者にあっては、単に、突合せ溶接を行うS構造用鉄骨梁補強金具のフランジ部の軸方向の長さが、当該S構造用鉄骨梁補強金具の軸方向の長さの半分以下にされるに過ぎなかった(特許文献1の段落[0033]、[0038]、[0050]、図5、図6など)。したがって、従来のS構造用鉄骨梁補強金具においては、S構造における鉄骨梁の全強を回復させることについて、更なる改善の余地があった。   However, the welding and fixing in the conventional S structure steel beam reinforcing metal fitting is performed by fillet welding or butt welding. In the former case, the welding is simply performed in the axial direction of the outer peripheral portion of the S structural steel beam reinforcing metal fitting. Both ends are merely welded and fixed to the peripheral edge of the through hole from the front side and the back side, respectively (paragraphs [0028], [0029], FIG. 1 etc. of Patent Document 1). In addition, the axial length of the flange portion of the S structural steel beam reinforcing metal fitting to be butt welded is only half or less of the axial length of the S structural steel beam reinforcing metal fitting (Patent Literature). 1 paragraphs [0033], [0038], [0050], FIG. 5, FIG. Therefore, the conventional S structure steel beam reinforcing bracket has room for further improvement in recovering the full strength of the steel beam in the S structure.

また、全強の回復の改善は、S構造の鉄骨梁のみならず、SRC構造の鉄骨梁についても図る必要があった。   Further, it was necessary to improve the recovery of all strengths not only for S-structured steel beams but also for SRC-structured steel beams.

そこで、本発明は、S構造またはSRC構造において、従来のS構造用鉄骨梁補強金具よりも鉄骨梁の全強を回復させることができる鉄骨梁補強金具を提供することを目的とする。   Therefore, an object of the present invention is to provide a steel beam reinforcing bracket capable of recovering the full strength of the steel beam in the S structure or the SRC structure as compared with the conventional steel beam reinforcing bracket for the S structure.

本発明によれば、上記課題は、次の手段によって解決することができる。   According to the present invention, the above problem can be solved by the following means.

第1の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、外周部が、前記鉄骨梁ウエブにすみ肉溶接され、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、前記鉄骨梁ウエブの一端側から前記外周部の一端までの長さと前記鉄骨梁ウエブの他端側から前記外周部の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、ことを特徴とする鉄骨梁補強金具である。   1st invention is a steel beam reinforcement metal fitting substantially fitted in the through-hole of a steel beam, and an outer peripheral part is fillet welded to the said steel beam web, and the length of an axial direction is thickness of radial direction 0.5 times to 200.0 times, and the length from one end side of the steel beam web to one end of the outer peripheral portion and the length from the other end side of the steel beam web to the other end of the outer peripheral portion, The steel beam reinforcing metal fitting is characterized by being 0.7 times or more the thickness of the steel beam web.

第2の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、外周部が、前記鉄骨梁ウエブに突合せ溶接され、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、前記鉄骨梁ウエブの一端側から前記外周部の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記外周部における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、ことを特徴とする鉄骨梁補強金具である。   According to a second aspect of the present invention, in the steel beam reinforcing metal fitting that is substantially fitted in the through hole of the steel beam, the outer peripheral portion is butt welded to the steel beam web, and the axial length is 0 of the radial thickness. 5 to 200.0 times, and the length from one end side of the steel beam web to the other end of the outer peripheral portion is larger than the thickness of the steel beam web, and the steel beam web in the outer peripheral portion is The steel beam reinforcing metal fitting is characterized in that the joint surface includes a curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web).

第3の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、外周部が、前記鉄骨梁ウエブに突合せ溶接され、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、前記鉄骨梁ウエブの一端側から前記外周部の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記外周部における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ<前記鉄骨梁ウエブの厚み)と、前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面と、が含まれている、ことを特徴とする鉄骨梁補強金具である。   According to a third aspect of the present invention, there is provided a steel beam reinforcing metal fitting substantially fitted in the through hole of the steel beam, the outer peripheral portion is butt welded to the steel beam web, and the axial length is 0 of the radial thickness. 5 to 200.0 times, and the length from one end side of the steel beam web to the other end of the outer peripheral portion is larger than the thickness of the steel beam web, and the steel beam web in the outer peripheral portion is A first joint surface substantially parallel to the radial direction (0 ≦ length <thickness of the steel beam web) and a second joint inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction. And a steel beam reinforcing metal fitting characterized by comprising a surface.

第4の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、外周部に、前記鉄骨梁ウエブにすみ肉溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の一端までの長さと前記鉄骨梁ウエブの他端側から前記間接部材の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、ことを特徴とする鉄骨梁補強金具である。   4th invention is a steel beam reinforcement metal fitting substantially fitted by the through-hole of a steel beam, The length of an axial direction is 0.5 times-200.0 times of the thickness of radial direction, An outer peripheral part The indirect member that is fillet welded to the steel beam web is fillet welded, and the length from one end of the steel beam web to one end of the indirect member and the other end of the steel beam web are The steel beam reinforcing metal fitting is characterized in that the length to the other end is 0.7 times or more the thickness of the steel beam web.

第5の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、外周部に、前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記間接部材における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、ことを特徴とする鉄骨梁補強金具である。   5th invention is a steel beam reinforcement metal fitting substantially fitted in the through-hole of a steel beam, The length of an axial direction is 0.5 to 200.0 times of the thickness of radial direction, An outer peripheral part The indirect member butt welded to the steel beam web is fillet welded, and the length from one end of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web, The steel beam reinforcing metal fitting is characterized in that the joint surface of the indirect member with the steel beam web includes a curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web).

第6の発明は、鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、外周部に、前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記間接部材における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ<前記鉄骨梁ウエブの厚み)と、前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面と、が含まれている、ことを特徴とする鉄骨梁補強金具である。   A sixth aspect of the present invention is the steel beam reinforcing bracket that is substantially fitted in the through hole of the steel beam, wherein the axial length is 0.5 to 200.0 times the radial thickness, The indirect member butt welded to the steel beam web is fillet welded, and the length from one end of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web, A first joint surface (0 ≦ length <thickness of the steel beam web) substantially parallel to the radial direction is formed on the joint surface of the indirect member with the steel beam web, and an angle θ (15 ≦ θ ≦) from the axial direction. And a second joint surface tilted at 80).

第7の発明は、鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、前記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブにすみ肉溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の一端までの長さと前記鉄骨梁ウエブの他端側から前記間接部材の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、ことを特徴とする鉄骨梁補強金具である。   According to a seventh aspect of the present invention, there is provided a pair of steel beam reinforcing brackets including a first steel beam reinforcing bracket and a second steel beam reinforcing bracket which are substantially fitted in a through hole of the steel beam. The reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the radial thickness, and one end of the first steel beam reinforcing metal fitting, An indirect member fillet welded to the steel beam web is fillet welded to the other end of the second steel beam reinforcement metal fitting, and the length from one end of the steel beam web to one end of the indirect member and the steel frame The steel beam reinforcing metal fitting is characterized in that a length from the other end side of the beam web to the other end of the indirect member is 0.7 times or more the thickness of the steel beam web.

第8の発明は、鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、第1の鉄骨梁補強金具の一端と第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記間接部材における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、ことを特徴とする鉄骨梁補強金具である。   According to an eighth aspect of the present invention, there is provided a pair of steel beam reinforcing brackets each including a first steel beam reinforcing bracket and a second steel beam reinforcing bracket that are substantially fitted in a through hole of the steel beam. The reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the thickness in the radial direction, and one end of the first steel beam reinforcing metal fitting and the second steel beam reinforcing metal fitting. An indirect member butt welded to the steel beam web is fillet welded to the other end of the steel beam reinforcing metal fitting 2 and the length from one end of the steel beam web to the other end of the indirect member is the steel frame. A steel frame characterized by being larger than the thickness of the beam web and having a curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web) at the joint surface of the indirect member with the steel beam web It is a beam reinforcement bracket.

第9の発明は、鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、前記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、前記間接部材における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ<前記鉄骨梁ウエブの厚み)と、前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面と、が含まれている、ことを特徴とする鉄骨梁補強金具である。   According to a ninth aspect of the present invention, there is provided a pair of steel beam reinforcing brackets including a first steel beam reinforcing bracket and a second steel beam reinforcing bracket that are substantially fitted in a through hole of the steel beam. The reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the radial thickness, and one end of the first steel beam reinforcing metal fitting, An indirect member butt welded to the steel beam web is fillet welded to the other end of the second steel beam reinforcing metal fitting, and the length from one end side of the steel beam web to the other end of the indirect member is: A first joint surface (0 ≦ length <thickness of the steel beam web) that is larger than the thickness of the steel beam web and is substantially parallel to the radial direction on the joint surface of the indirect member with the steel beam web; A second joining surface inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction. It is a steel beam reinforcing metal fitting characterized by this.

本発明によれば、鉄骨梁補強金具と鉄骨梁ウエブとを溶接することによって形成される溶接部の許容力を、鉄骨梁の許容力以上とすることができる。したがって、本発明によれば、鉄骨梁の全強を回復させることができる。また、本発明によれば、S構造における鉄骨梁のみならず、SRC構造における鉄骨梁の全強も図ることができる。   ADVANTAGE OF THE INVENTION According to this invention, the allowable force of the welding part formed by welding a steel beam reinforcement metal fitting and a steel beam web can be made more than the allowable force of a steel beam. Therefore, according to the present invention, the full strength of the steel beam can be recovered. Moreover, according to this invention, not only the steel beam in S structure but the full strength of the steel beam in SRC structure can also be aimed at.

図13中の破線で示した部分の第1の例を示す図である。It is a figure which shows the 1st example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第2の例を示す図である。It is a figure which shows the 2nd example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第3の例を示す図である。It is a figure which shows the 3rd example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第4の例を示す図である。It is a figure which shows the 4th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第5の例を示す図である。It is a figure which shows the 5th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第6の例を示す図である。It is a figure which shows the 6th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第7の例を示す図である。It is a figure which shows the 7th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第8の例を示す図である。It is a figure which shows the 8th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第9の例を示す図である。It is a figure which shows the 9th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第10の例を示す図である。It is a figure which shows the 10th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第11の例を示す図である。It is a figure which shows the 11th example of the part shown with the broken line in FIG. 図13中の破線で示した部分の第12の例を示す図である。It is a figure which shows the 12th example of the part shown with the broken line in FIG. 本発明の実施の形態に係る鉄骨梁補強金具により補強されたSRC梁を示す図である。It is a figure which shows the SRC beam reinforced by the steel beam reinforcement metal fitting which concerns on embodiment of this invention.

符号の説明Explanation of symbols

1 SRC梁
2 主筋
3 フープ筋
4 コンクリート
5 鉄骨梁
5−1 鉄骨梁ウエブ
5−2 鉄骨梁フランジ
6 貫通孔
7−1 鉄骨梁補強金具
7−2 鉄骨梁補強金具
7−3 鉄骨梁補強金具
7−4 鉄骨梁補強金具
7−5 鉄骨梁補強金具
7−6 鉄骨梁補強金具
7−7 鉄骨梁補強金具
7−8 鉄骨梁補強金具
7−9−1 第1の鉄骨梁補強金具
7−9−2 第2の鉄骨梁補強金具
7−10−1 第1の鉄骨梁補強金具
7−10−2 第2の鉄骨梁補強金具
7−11−1 第1の鉄骨梁補強金具
7−11−2 第2の鉄骨梁補強金具
7−12−1 第1の鉄骨梁補強金具
7−12−2 第2の鉄骨梁補強金具
8 図13中の破線で示した部分
9 すみ肉溶接
10 突合せ溶接
12 開先底部
11−1 間接部材
11−2 間接部材
11−3 間接部材
11−4 間接部材
ta 鉄骨梁補強金具の軸方向の長さ
tb 鉄骨梁補強金具の半径方向の肉厚
tw 鉄骨梁ウエブの厚み
t1 鉄骨梁ウエブの一端側から外周部の一端までの長さ、鉄骨梁ウエブの他端側から外周部の他端までの長さ、鉄骨梁ウエブの一端側から間接部材の一端までの長さ、鉄骨梁ウエブの他端側から間接部材の他端までの長さ
t2 鉄骨梁ウエブの一端側から外周部の他端までの長さ、鉄骨梁ウエブの一端側から間接部材の他端までの長さ
R 鉄骨梁補強金具における第1接合面の曲率半径、間接部材における第1接合面の曲率半径
θ 鉄骨梁補強金具における第2接合面の軸方向からの傾き、間接部材における第2接合面の軸方向からの傾き
L 外周部における第1接合面の長さ、間接部材における第1接合面の長さ
DESCRIPTION OF SYMBOLS 1 SRC beam 2 Main reinforcement 3 Hoop reinforcement 4 Concrete 5 Steel beam 5-1 Steel beam web 5-2 Steel beam flange 6 Through-hole 7-1 Steel beam reinforcement metal fitting 7-2 Steel beam reinforcement metal fitting 7-3 Steel beam reinforcement metal fitting 7 -4 Steel beam reinforcement bracket 7-5 Steel beam reinforcement bracket 7-6 Steel beam reinforcement bracket 7-7 Steel beam reinforcement bracket 7-8 Steel beam reinforcement bracket 7-9-1 First steel beam reinforcement bracket 7-9- 2 Second steel beam reinforcement bracket 7-10-1 First steel beam reinforcement bracket 7-10-2 Second steel beam reinforcement bracket 7-11-1 First steel beam reinforcement bracket 7-11-2 Steel beam reinforcing bracket 7-12-1 First steel beam reinforcing bracket 7-12-2 Second steel beam reinforcing bracket 8 Portion 9 indicated by a broken line in FIG. 13 Fillet weld 10 Butt weld 12 Groove Bottom 11-1 Indirect member 11-2 Indirect member 11-3 Indirect member 11-4 Indirect member ta Steel frame Axial length tb of reinforcing bracket Radial thickness tw of steel beam reinforcing bracket Thickness of steel beam web t1 Length from one end of steel beam web to one end of outer periphery, from other end of steel beam web Length to the other end of the outer periphery, length from one end of the steel beam web to one end of the indirect member, length t2 from the other end of the steel beam web to the other end of the indirect member One end side of the steel beam web From the one end of the steel beam web to the other end of the indirect member R, the radius of curvature of the first joint surface of the steel beam reinforcing bracket, the curvature of the first joint surface of the indirect member Radius θ Inclination from the axial direction of the second joint surface in the steel beam reinforcing bracket, Inclination from the axial direction of the second joint surface in the indirect member L Length of the first joint surface in the outer peripheral portion, First joint surface in the indirect member Length of

以下に、添付した図面を参照しつつ、本発明を実施するための最良の形態を詳細に説明する。   The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

図13は、本発明の実施の形態に係る鉄骨梁補強金具により補強されたSRC梁1を示す図である。
図13に示すように、このSRC梁1は、主筋2とフープ筋3とコンクリート4と、鋼からなる鉄骨梁5と、を備えている。また、鉄骨梁5は、鉄骨梁ウエブ5−1と鉄骨梁フランジ5−2とを具備している。また、このSRC梁1には、貫通孔6が設けられており、この貫通孔6には、本発明の実施の形態に係る鉄骨梁補強金具7−1が略嵌合されている。そして、この鉄骨梁補強金具7−1は、鉄骨梁ウエブ5−1に溶接されている。なお、鉄骨梁補強金具7−1は、その材質強度が、鉄骨梁ウエブ5−1の材質強度と同等もしくはそれよりも大きい部材(たとえば、鋳鋼や鍛鋼など)によって作成することができる。
FIG. 13 is a view showing the SRC beam 1 reinforced by the steel beam reinforcing metal fitting according to the embodiment of the present invention.
As shown in FIG. 13, the SRC beam 1 includes a main bar 2, a hoop bar 3, concrete 4, and a steel beam 5 made of steel. The steel beam 5 includes a steel beam web 5-1 and a steel beam flange 5-2. Further, the SRC beam 1 is provided with a through hole 6, and the steel beam reinforcing metal fitting 7-1 according to the embodiment of the present invention is substantially fitted into the through hole 6. And this steel beam reinforcement metal fitting 7-1 is welded to the steel beam web 5-1. The steel beam reinforcing metal fitting 7-1 can be made of a member (for example, cast steel or forged steel) whose material strength is equal to or greater than that of the steel beam web 5-1.

図1は、図13中の破線で示した部分8を拡大した図であり、図13中の破線で示した部分8の第1の例を示す図である。
図1に示すように、第1の例においては、鉄骨梁補強金具7−1の外周部が、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
なお、本明細書においては、鉄骨梁補強金具7−1の軸方向を単に「軸方向」といい、鉄骨梁補強金具7−1の半径方向を単に「半径方向」という。また、鉄骨梁ウエブ5−1の軸方向の厚みtwとは、鉄骨梁補強金具7−1の軸方向における、鉄骨梁ウエブ5−1の長さをいう。
ここで、この鉄骨梁補強金具7−1においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−1においては、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図1に示した第1の例においては、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さと鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さと鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さとが同一である形態に限定されるものではない。
FIG. 1 is an enlarged view of a portion 8 indicated by a broken line in FIG. 13, and is a view showing a first example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 1, in the first example, the outer peripheral portion of the steel beam reinforcing bracket 7-1 is fillet welded 9 to the steel beam web 5-1.
In the present specification, the axial direction of the steel beam reinforcing bracket 7-1 is simply referred to as “axial direction”, and the radial direction of the steel beam reinforcing bracket 7-1 is simply referred to as “radial direction”. The axial thickness tw of the steel beam web 5-1 refers to the length of the steel beam web 5-1 in the axial direction of the steel beam reinforcing bracket 7-1.
Here, in the steel beam reinforcing metal fitting 7-1, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. Further, in this steel beam reinforcing metal fitting 7-1, the length t1 from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion. The length t1 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the first example shown in FIG. 1, the length from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the length from the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion. The length is the same (both are t1), but this is for convenience of explanation. Therefore, in the present invention, the length from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the length from the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion are the same. It is not limited.

この鉄骨梁補強金具7−1によれば、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。以下、このことを数式を用いて示す。   According to the steel beam reinforcing bracket 7-1, the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1, so that the full strength of the steel beam can be recovered. This will be shown below using mathematical formulas.

鉄骨梁ウエブの許容力は、次式で示される。

Figure 0004616837
The allowable force of the steel beam web is expressed by the following equation.
Figure 0004616837

また、溶接部9の許容力は、次式で示される。

Figure 0004616837
Moreover, the allowable force of the welding part 9 is shown by following Formula.
Figure 0004616837

ここで、第1の例に係る鉄骨梁補強金具7−1においては、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上であるため、次式を導くことができる。

Figure 0004616837
Here, in the steel beam reinforcing metal fitting 7-1 according to the first example, the length t1 from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the other end side of the steel beam web 5-1. Since the length t1 to the other end of the outer peripheral portion is 0.7 times or more the thickness tw of the steel beam web 5-1, the following equation can be derived.
Figure 0004616837

なお、図1に示した構成は、図13中の破線で示した部分8の一例であって、本発明においては、図13中の破線で示した部分8を、たとえば、次の図2〜図12に示す構成で実現することもできる。以下、図2〜図12に示す構成を順に説明する。   The configuration shown in FIG. 1 is an example of the portion 8 indicated by the broken line in FIG. 13. In the present invention, the portion 8 indicated by the broken line in FIG. It can also be realized with the configuration shown in FIG. Hereinafter, the configuration illustrated in FIGS. 2 to 12 will be described in order.

図2は、図13中の破線で示した部分8の第2の例を示す図である。
図2に示すように、この第2の例に係る鉄骨梁補強金具7−2は、一端側に凸部を具備する外周部を備えており、この外周部における一端側の凸部と他端側の平面とが、それぞれ、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
ここで、この鉄骨梁補強金具においては、その軸方向の長さtaが、他端側における半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−2においては、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図2に示した第2の例においては、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さと鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から外周部の一端までの長さと鉄骨梁ウエブ5−1の他端側から外周部の他端までの長さとが同一である形態に限定されるものではない。
FIG. 2 is a diagram illustrating a second example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 2, the steel beam reinforcing bracket 7-2 according to the second example includes an outer peripheral portion having a convex portion on one end side, and the convex portion and the other end on one end side in the outer peripheral portion. The side planes are fillet welded 9 to the steel beam web 5-1.
Here, in this steel beam reinforcing metal fitting, the length ta in the axial direction is 0.5 to 200.0 times the thickness tb in the radial direction on the other end side. Further, in this steel beam reinforcing metal fitting 7-2, the length t1 from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion. The length t1 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the second example shown in FIG. 2, the length from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the length from the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion. The length is the same (both are t1), but this is for convenience of explanation. Therefore, in the present invention, the length from one end side of the steel beam web 5-1 to one end of the outer peripheral portion and the length from the other end side of the steel beam web 5-1 to the other end of the outer peripheral portion are the same. It is not limited.

この第2の例においても、第1の例と同様に、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。   Also in the second example, since the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1 as in the first example, the full strength of the steel beam can be recovered. .

図3は、図13中の破線で示した部分8の第3の例を示す図である。
図3に示すように、この第3の例に係る鉄骨梁補強金具7−3は、一端側に凸部を具備する外周部を備えている。この外周部の他端側には、曲率半径R(0≦R≦鉄骨梁ウエブ5−1の厚みtwの5倍)を有する第1接合面(曲面)と、その曲面に連なり、軸方向から角度θ(15≦θ≦80)で傾斜した第2接合面(傾斜平面)と、が形成されており、この第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10される。
ここで、この鉄骨梁補強金具7−3においては、その軸方向の長さtaが、他端側における半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−3においては、鉄骨梁ウエブの一端側から外周部の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。
この第3の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、鉄骨梁補強金具7−3の外周部に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
また、この第3の例によれば、鉄骨梁補強金具7−3の開先底部12に曲面を設けているため、溶接金属10を開先底部12に容易に溶着することができる。したがって、この第3の例によれば、開先底部12において品質的に良好な溶接を容易に行うことができる。
また、この第3の例によれば、第1接合面に連なった、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)が設けられているため、溶接中に発生するスラグ等が開先外部に排出され、品質的に良好な溶接を容易に行うことができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第3の例においては、鉄骨梁補強金具7−3における第1接合面(曲面)の曲率半径Rが、0≦R≦(鉄骨梁ウエブ5−1の厚みtwの5倍)とされ、この第1接合面(曲面)に連なる第2接合面(傾斜平面)の傾斜角度が、軸方向から角度θ(15≦θ≦80)とされるため、溶接金属10の体積が不要に大きくなることがない。したがって、この第3の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。なお、第3の例においては、第2接合面(傾斜平面)を軸方向から角度θ(15≦θ≦80)で傾斜させたが、角度θが30度〜70度の範囲においては、溶接金属10における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
なお、第3の例においては、鉄骨梁補強金具7−3の外周部における第1接合面を曲面とし、鉄骨梁ウエブ5−1における接合面を平面としたが、本発明においては、鉄骨梁補強金具7−3の外周部における第1接合面および第2接合面を一体の同平面とし、鉄骨梁ウエブ5−1における接合面を曲面とすることもできる。この場合、鉄骨梁ウエブ5−1には、接合面に設けられた曲面に連なり、軸方向から角度θ(15≦θ≦80度)で傾斜する傾斜平面を設けることができる。
また、第3の例においては、鉄骨梁補強金具7−3の外周部の他端側に、曲率半径Rを有する第1接合面(曲面)と、その曲面に連なり、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)と、を形成したが、本発明においては、鉄骨梁補強金具7−3の外周部の他端側に、第2接合面のような傾斜平面を設けることなく、曲率半径Rを有する接合面(曲面)のみを設けることもできる。
FIG. 3 is a diagram showing a third example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 3, the steel beam reinforcing metal fitting 7-3 according to the third example includes an outer peripheral portion having a convex portion on one end side. On the other end side of the outer peripheral portion, a first joint surface (curved surface) having a radius of curvature R (0 ≦ R ≦ 5 times the thickness tw of the steel beam web 5-1) and the curved surface are connected from the axial direction. A second joint surface (slope plane) inclined at an angle θ (15 ≦ θ ≦ 80) is formed, and the first joint surface and the second joint surface are butt welded to the steel beam web 5-1. 10.
Here, in the steel beam reinforcing metal fitting 7-3, the length ta in the axial direction is 0.5 to 200.0 times the thickness tb in the radial direction on the other end side. Moreover, in this steel beam reinforcement metal fitting 7-3, the length t2 from one end side of the steel beam web to the other end of the outer peripheral portion is larger than the thickness tw of the steel beam web 5-1.
According to the third example, since all of the joint surfaces of the steel beam web 5-1 are welded to the outer peripheral portion of the steel beam reinforcing bracket 7-3, the full strength of the steel beam is restored. Can do.
Moreover, according to this 3rd example, since the curved surface is provided in the groove bottom part 12 of the steel beam reinforcement metal fitting 7-3, the weld metal 10 can be easily welded to the groove bottom part 12. FIG. Therefore, according to the third example, it is possible to easily perform welding with good quality at the groove bottom portion 12.
In addition, according to the third example, the second joint surface (inclined plane) that is connected to the first joint surface and is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction is provided. The slag generated inside is discharged to the outside of the groove, and welding with good quality can be easily performed.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in this third example, the radius of curvature R of the first joint surface (curved surface) in the steel beam reinforcing bracket 7-3 is 0 ≦ R ≦ (5 times the thickness tw of the steel beam web 5-1). Since the inclination angle of the second joint surface (inclined plane) connected to the first joint surface (curved surface) is the angle θ (15 ≦ θ ≦ 80) from the axial direction, the volume of the weld metal 10 is not required. It will not grow. Therefore, according to the third example, the probability of occurrence of defects in the weld metal 10 can be reduced. In the third example, the second joint surface (inclined plane) is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction. However, in the range of the angle θ of 30 degrees to 70 degrees, welding is performed. The probability of occurrence of defects in the metal 10 can be further reduced, and the amount of the weld metal 10 to be used can be reduced, so that the cost can be reduced.
In the third example, the first joint surface in the outer peripheral portion of the steel beam reinforcing metal fitting 7-3 is a curved surface, and the joint surface in the steel beam web 5-1 is a flat surface. However, in the present invention, a steel beam is used. The 1st joint surface and the 2nd joint surface in the outer peripheral part of the reinforcement metal fitting 7-3 can also be made into the same same plane, and the joint surface in the steel beam web 5-1 can also be made into a curved surface. In this case, the steel beam web 5-1 can be provided with an inclined plane that is continuous with the curved surface provided on the joint surface and is inclined at an angle θ (15 ≦ θ ≦ 80 degrees) from the axial direction.
In the third example, the first joint surface (curved surface) having a radius of curvature R is connected to the other end side of the outer peripheral portion of the steel beam reinforcing metal fitting 7-3 and the curved surface, and the angle θ ( 15 ≦ θ ≦ 80), the second joint surface (slope plane) is formed. In the present invention, the second joint surface is formed on the other end side of the outer peripheral portion of the steel beam reinforcing bracket 7-3. It is also possible to provide only a joint surface (curved surface) having a radius of curvature R without providing such an inclined plane.

図4は、図13中の破線で示した部分8の第4の例を示す図である。
図4に示すように、この第4の例に係る鉄骨梁補強金具7−4は、一端側に凸部を具備する外周部を備えている。この外周部の他端側には、鉄骨梁補強金具7−4の半径方向に略平行な第1接合面と鉄骨梁補強金具7−4の軸方向から角度θ(15≦θ≦80)で傾いた第2接合面とが形成されており、この第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10されている。
ここで、この鉄骨梁補強金具7−4においては、その軸方向の長さtaが、他端側における半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−4においては、鉄骨梁ウエブ5−1の一端側から外周部の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。また、この鉄骨梁補強金具7−4においては、外周部における第1接合面の長さLが、0≦L≦(鉄骨梁ウエブ5−1の厚みtw)の条件を満たす。
この第4の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、鉄骨梁補強金具7−4の外周部に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
この第4の例によれば、鉄骨梁補強金具7−4における第2接合面が軸方向から角度θ(15≦θ≦80)で傾いているため、溶接中に発生するスラグ等が開先外部に排出され、品質的に良好な溶接を容易に行うことができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第4の例においては、鉄骨梁補強金具7−4における第2接合面の傾斜角度が、軸方向から角度θ(15≦θ≦80)とされるため、溶接金属10の体積が不要に大きくなることがない。したがって、この第4の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。なお、第4の例においては、鉄骨梁補強金具7−4における第2接合面を軸方向から角度θ(15≦θ≦80)で傾かせたが、角度θが30度〜70度の範囲においては、溶接金属10における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
なお、第4の例においては、鉄骨梁補強金具7−4の外周部における第2接合面を軸方向から傾け、鉄骨梁ウエブ5−1における接合面を軸方向に略平行としたが、本発明においては、鉄骨梁補強金具7−4の外周部における第2接合面を軸方向に略平行とし、鉄骨梁ウエブ5−1における接合面を軸方向から角度θ(15≦θ≦80)で傾けることもできる。
FIG. 4 is a diagram showing a fourth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 4, the steel beam reinforcement metal fitting 7-4 which concerns on this 4th example is provided with the outer peripheral part which comprises a convex part in the one end side. On the other end side of the outer peripheral portion, an angle θ (15 ≦ θ ≦ 80) is formed from the first joint surface substantially parallel to the radial direction of the steel beam reinforcing bracket 7-4 and the axial direction of the steel beam reinforcing bracket 7-4. An inclined second joint surface is formed, and the first joint surface and the second joint surface are butt welded 10 to the steel beam web 5-1.
Here, in this steel beam reinforcing metal fitting 7-4, the length ta in the axial direction is 0.5 to 200.0 times the thickness tb in the radial direction on the other end side. Further, in this steel beam reinforcing metal fitting 7-4, the length t2 from one end side of the steel beam web 5-1 to the other end of the outer peripheral portion is larger than the thickness tw of the steel beam web 5-1. Moreover, in this steel beam reinforcement metal fitting 7-4, the length L of the 1st joint surface in an outer peripheral part satisfy | fills the conditions of 0 <= L <= (thickness tw of the steel beam web 5-1).
According to the fourth example, since all of the joint surfaces of the steel beam web 5-1 are welded to the outer peripheral portion of the steel beam reinforcing bracket 7-4, the full strength of the steel beam is restored. Can do.
According to the fourth example, since the second joint surface of the steel beam reinforcing bracket 7-4 is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction, slag or the like generated during welding is grooved. It is discharged to the outside and can be easily welded with good quality.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in the fourth example, since the inclination angle of the second joint surface in the steel beam reinforcing metal fitting 7-4 is set to the angle θ (15 ≦ θ ≦ 80) from the axial direction, the volume of the weld metal 10 is reduced. It does not grow unnecessarily. Therefore, according to the fourth example, the probability of occurrence of defects in the weld metal 10 can be reduced. In the fourth example, the second joint surface of the steel beam reinforcing bracket 7-4 is tilted from the axial direction at an angle θ (15 ≦ θ ≦ 80), but the angle θ is in the range of 30 to 70 degrees. In, the probability of occurrence of defects in the weld metal 10 can be further reduced, and the amount of the weld metal 10 to be used can be reduced, so that the cost can be reduced.
In the fourth example, the second joint surface in the outer peripheral portion of the steel beam reinforcing bracket 7-4 is inclined from the axial direction, and the joint surface in the steel beam web 5-1 is substantially parallel to the axial direction. In the invention, the second joint surface in the outer peripheral portion of the steel beam reinforcing metal fitting 7-4 is made substantially parallel to the axial direction, and the joint surface in the steel beam web 5-1 is at an angle θ (15 ≦ θ ≦ 80) from the axial direction. You can also tilt.

図5は、図13中の破線で示した部分の第5の例を示す図である。
図5に示すように、この第5の例に係る鉄骨梁補強金具7−5は、その外周部に間接部材11−1がすみ肉溶接9されている。そして、この間接部材11−1は、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
ここで、この鉄骨梁補強金具7−5においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−5においては、鉄骨梁ウエブ5−1の一端側から間接部材11−1の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から間接部材11−1の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図5に示した第5の例においては、鉄骨梁ウエブ5−1の一端側から間接部材の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から間接部材の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材の他端までの長さとが同一である形態に限定されるものではない。
FIG. 5 is a diagram illustrating a fifth example of a portion indicated by a broken line in FIG.
As shown in FIG. 5, in the steel beam reinforcing metal fitting 7-5 according to the fifth example, an indirect member 11-1 is fillet welded 9 on the outer peripheral portion thereof. The indirect member 11-1 is fillet welded 9 to the steel beam web 5-1.
Here, in this steel beam reinforcing metal fitting 7-5, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. Further, in this steel beam reinforcing metal fitting 7-5, the length t1 from one end side of the steel beam web 5-1 to one end of the indirect member 11-1 and the indirect member 11 from the other end side of the steel beam web 5-1. The length t1 to the other end of -1 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the fifth example shown in FIG. 5, the length from one end side of the steel beam web 5-1 to one end of the indirect member and the other end side of the steel beam web 5-1 to the other end of the indirect member. The length is the same (both are t1), but this is for convenience of explanation. Therefore, in the present invention, the length from one end side of the steel beam web 5-1 to one end of the indirect member is the same as the length from the other end side of the steel beam web 5-1 to the other end of the indirect member. It is not limited.

この第5の例においても、第1の例と同様に、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。   Also in the fifth example, since the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1 as in the first example, the full strength of the steel beam can be recovered. .

図6は、図13中の破線で示した部分8の第6の例を示す図である。
図6に示すように、この第6の例に係る鉄骨梁補強金具7−6は、その外周部に、一端側に凸部を具備する間接部材11−2がすみ肉溶接9されている。そして、この間接部材11−2における一端側の凸部と他端側の平面とが、それぞれ、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
ここで、この鉄骨梁補強金具7−6においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−6においては、鉄骨梁ウエブ5−1の一端側から間接部材11−2の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から間接部材11−2の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図6に示した第6の例においては、鉄骨梁ウエブ5−1の一端側から間接部材の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から間接部材の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材の他端までの長さとが同一である形態に限定されるものではない。
FIG. 6 is a diagram illustrating a sixth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 6, in the steel beam reinforcing metal fitting 7-6 according to the sixth example, an indirect member 11-2 having a convex portion on one end side is fillet welded 9 on the outer peripheral portion thereof. And the convex part of the one end side in this indirect member 11-2 and the plane of the other end side are each fillet welded 9 to the steel beam web 5-1.
Here, in this steel beam reinforcing metal fitting 7-6, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. Further, in this steel beam reinforcing metal fitting 7-6, the length t1 from one end side of the steel beam web 5-1 to one end of the indirect member 11-2 and the indirect member 11 from the other end side of the steel beam web 5-1. The length t1 to the other end of -2 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the sixth example shown in FIG. 6, the length from one end of the steel beam web 5-1 to one end of the indirect member and the other end of the steel beam web 5-1 to the other end of the indirect member. The length is the same (both are t1), but this is for convenience of explanation. Therefore, in the present invention, the length from one end side of the steel beam web 5-1 to one end of the indirect member is the same as the length from the other end side of the steel beam web 5-1 to the other end of the indirect member. It is not limited.

この第6の例においても、第1の例と同様に、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。   Also in the sixth example, since the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1 as in the first example, the full strength of the steel beam can be recovered. .

図7は、図13中の破線で示した部分8の第7の例を示す図である。
図7に示すように、この第7の例に係る鉄骨梁補強金具7−7は、一端側に凸部を具備し、かつ、他端側に、曲率半径R(0≦R≦鉄骨梁ウエブ5−1の厚みtwの5倍)を有する第1接合面(曲面)と、その曲面に連なり、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)と、が形成された間接部材11−3が、外周部にすみ肉溶接9されている。そして、間接部材11−3における他端側の第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10されている。
ここで、この鉄骨梁補強金具7−7においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。この鉄骨梁補強金具7−7においては、鉄骨梁ウエブ5−1の一端側から間接部材11−3の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。
この第7の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、間接部材11−3に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
また、この第7の例によれば、間接部材11−3の開先底部12に曲面を設けているため、溶接金属10を開先底部12に容易に溶着することができる。したがって、この第7の例によれば、開先底部12において品質的に良好な溶接を容易に行うことができる。
また、この第7の例によれば、鉄骨梁補強金具7−7の軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面が設けられるため、溶接中に発生するスラグ等が開先外部に排出され、品質的に良好な溶接を容易に行うことができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第7の例においては、間接部材11−3における第1接合面(曲面)の曲率半径が、0≦曲率半径R≦(鉄骨梁ウエブ5−1の厚みtwの5倍)とされ、また、第2接合面(傾斜平面)における傾斜角度が鉄骨梁補強金具7−7の軸方向から角度θ(15≦θ≦80)とされているため、溶接金属10の体積が不要に大きくなることがない。
したがって、この第7の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。なお、第7の例においては、鉄骨梁補強金具7−7の軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)を設けたが、この角度θが30度〜70度の範囲においては、溶接金属10における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
また、第7の例においては、間接部材11−3における第1接合面を曲面とし、鉄骨梁ウエブ5−1における接合面を平面としたが、本発明においては、間接部材11−3における第1接合面および第2接合面を一体の同平面とし、鉄骨梁ウエブ5−1における接合面を曲面とすることもできる。この場合は、鉄骨梁ウエブ5−1には、曲面に連なり、鉄骨梁補強金具7−7の軸方向から角度θ(15≦θ≦80)で傾斜する傾斜平面を設けることができる。
また、第7の例においては、間接部材11−3の他端側に、曲率半径Rを有する第1接合面(曲面)と、その曲面に連なり、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)と、を形成したが、本発明においては、間接部材11−3の他端側に、傾斜平面を設けることなく、曲率半径Rを有する曲面のみを設けることもできる。
FIG. 7 is a diagram showing a seventh example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 7, the steel beam reinforcing bracket 7-7 according to the seventh example has a convex portion on one end side, and a curvature radius R (0 ≦ R ≦ steel beam web) on the other end side. A first joint surface (curved surface) having a thickness tw of 5-1), and a second joint surface (slope plane) connected to the curved surface and inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction. The indirect member 11-3 in which is formed is fillet welded 9 to the outer peripheral portion. The first joint surface and the second joint surface on the other end side of the indirect member 11-3 are butt welded 10 to the steel beam web 5-1.
Here, in this steel beam reinforcing metal fitting 7-7, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. In this steel beam reinforcing metal fitting 7-7, the length t2 from one end of the steel beam web 5-1 to the other end of the indirect member 11-3 is larger than the thickness tw of the steel beam web 5-1.
According to the seventh example, since all the joint surfaces of the steel beam web 5-1 are welded to the indirect member 11-3, the full strength of the steel beam can be recovered.
Further, according to the seventh example, since the curved surface is provided in the groove bottom portion 12 of the indirect member 11-3, the weld metal 10 can be easily welded to the groove bottom portion 12. Therefore, according to the seventh example, it is possible to easily perform welding with good quality at the groove bottom portion 12.
Further, according to the seventh example, since the second joint surface inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing bracket 7-7 is provided, slag generated during welding, etc. Is discharged to the outside of the groove, and welding with good quality can be easily performed.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in the seventh example, the radius of curvature of the first joint surface (curved surface) of the indirect member 11-3 is 0 ≦ curvature radius R ≦ (5 times the thickness tw of the steel beam web 5-1). Moreover, since the inclination angle at the second joint surface (inclined plane) is set to the angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing bracket 7-7, the volume of the weld metal 10 is unnecessarily large. Never become.
Therefore, according to the seventh example, the probability of occurrence of defects in the weld metal 10 can be reduced. In the seventh example, the second joint surface (inclined plane) that is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing metal fitting 7-7 is provided. In the range of degrees to 70 degrees, the occurrence probability of defects in the weld metal 10 can be further reduced, and the amount of the weld metal 10 to be used can be reduced, so that the cost can be reduced.
In the seventh example, the first joint surface of the indirect member 11-3 is a curved surface, and the joint surface of the steel beam web 5-1 is a flat surface. The 1 joining surface and the 2nd joining surface can also be made into the same same plane, and the joining surface in the steel beam web 5-1 can also be made into a curved surface. In this case, the steel beam web 5-1 can be provided with an inclined plane that is continuous with the curved surface and is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing bracket 7-7.
In the seventh example, on the other end side of the indirect member 11-3, a first joint surface (curved surface) having a curvature radius R and the curved surface are connected, and an angle θ (15 ≦ θ ≦ 80) from the axial direction. In the present invention, only the curved surface having the curvature radius R is provided on the other end side of the indirect member 11-3 without providing the inclined plane. It can also be provided.

図8は、図13中の破線で示した部分8の第8の例を示す図である。
図8に示すように、この第8の例に係る鉄骨梁補強金具7−8は、一端側に凸部を具備し、かつ、鉄骨梁補強金具7−8の半径方向に略平行な第1接合面と、鉄骨梁補強金具7−8の軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面と、が形成された間接部材11−4が、外周部にすみ肉溶接9されている。そして、この間接部材11−4における第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10されている。
ここで、この鉄骨梁補強金具7−8においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−8においては、鉄骨梁ウエブ5−1の一端側から間接部材11−4の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。また、この鉄骨梁補強金具7−8においては、間接部材11−4における第1接合面の長さLが、0≦L≦(鉄骨梁ウエブ5−1の厚みtw)という条件を満たしている。
この第8の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、間接部材11−4に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第8の例においては、間接部材11−4における第2接合面の傾斜角度が軸方向から角度θ(15≦θ≦80)とされるため、溶接金属10の体積が不要に大きくなることがない。したがって、この第8の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。
なお、第8の例においては、鉄骨梁補強金具7−8における第2接合面を軸方向から角度θ(15≦θ≦80)で傾かせたが、この角度θが30度〜70度の範囲においては、溶接金属10における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
なお、第8の例においては、間接部材11−4における接合面を軸方向から傾斜させ、鉄骨梁ウエブ5−1における接合面を軸方向に略平行としたが、本発明においては、間接部材11−4における接合面を軸方向に略平行とし、鉄骨梁ウエブ5−1における接合面を軸方向から角度θ(15≦θ≦80)で傾斜させることもできる。
FIG. 8 is a diagram illustrating an eighth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 8, the steel beam reinforcing bracket 7-8 according to the eighth example is provided with a convex portion on one end side and is substantially parallel to the radial direction of the steel beam reinforcing bracket 7-8. An indirect member 11-4 formed with a joint surface and a second joint surface inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing bracket 7-8 is welded to the outer peripheral portion. Nine. And the 1st joint surface and the 2nd joint surface in this indirect member 11-4 are butt-welded 10 to the steel beam web 5-1.
Here, in the steel beam reinforcing bracket 7-8, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. In this steel beam reinforcing metal fitting 7-8, the length t2 from one end side of the steel beam web 5-1 to the other end of the indirect member 11-4 is larger than the thickness tw of the steel beam web 5-1. . Further, in this steel beam reinforcing metal fitting 7-8, the length L of the first joint surface of the indirect member 11-4 satisfies the condition of 0 ≦ L ≦ (the thickness tw of the steel beam web 5-1). .
According to the eighth example, since all the joint surfaces of the steel beam web 5-1 are welded to the indirect member 11-4, the full strength of the steel beam can be recovered.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in the eighth example, since the inclination angle of the second joint surface of the indirect member 11-4 is set to the angle θ (15 ≦ θ ≦ 80) from the axial direction, the volume of the weld metal 10 is unnecessarily large. Never become. Therefore, according to the eighth example, the probability of occurrence of defects in the weld metal 10 can be reduced.
In the eighth example, the second joint surface of the steel beam reinforcing bracket 7-8 is tilted from the axial direction by an angle θ (15 ≦ θ ≦ 80). The angle θ is 30 degrees to 70 degrees. In the range, the occurrence probability of defects in the weld metal 10 can be further reduced, and the amount of the weld metal 10 to be used can be reduced, so that the cost can be reduced.
In the eighth example, the joint surface of the indirect member 11-4 is inclined from the axial direction, and the joint surface of the steel beam web 5-1 is substantially parallel to the axial direction. The joint surface in 11-4 can be made substantially parallel to the axial direction, and the joint surface in the steel beam web 5-1 can be inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction.

図9は、図13中の破線で示した部分8の第9の例を示す図である。
図9に示すように、この第9の例においては、第1の鉄骨梁補強金具7−9−1と第2の鉄骨梁補強金具7−9−2とがSRC梁1の貫通孔6に略嵌合されている。
第1の鉄骨梁補強金具7−9−1の一端と第2の鉄骨梁補強金具7−9−2の他端とには、間接部材11−1がすみ肉溶接9されており、この間接部材11−1は、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
ここで、この鉄骨梁補強金具7−9−1、7−9−2においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−9−1、7−9−2においては、鉄骨梁ウエブ5−1の一端側から間接部材11−1の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から間接部材11−1の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図9に示した第9の例においては、鉄骨梁ウエブ5−1の一端側から間接部材11−1の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材11−1の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から間接部材11−1の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材11−1の他端までの長さとが同一である形態に限定されるものではない。
FIG. 9 is a diagram illustrating a ninth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 9, in the ninth example, the first steel beam reinforcing bracket 7-9-1 and the second steel beam reinforcing bracket 7-9-2 are formed in the through-hole 6 of the SRC beam 1. It is almost fitted.
An indirect member 11-1 is fillet welded 9 to one end of the first steel beam reinforcing bracket 7-9-1 and the other end of the second steel beam reinforcing bracket 7-9-2. The member 11-1 is fillet welded 9 to the steel beam web 5-1.
Here, in the steel beam reinforcing brackets 7-9-1 and 7-9-2, the length ta in the axial direction is 0.5 to 200.0 times the thickness tb in the radial direction. Further, in the steel beam reinforcing metal fittings 7-9-1 and 7-9-2, the length t1 from one end side of the steel beam web 5-1 to one end of the indirect member 11-1 and the steel beam web 5-1. The length t1 from the other end side to the other end of the indirect member 11-1 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the ninth example shown in FIG. 9, the length from one end of the steel beam web 5-1 to one end of the indirect member 11-1 and the indirect member 11- from the other end of the steel beam web 5-1. The length to the other end of 1 is the same (both are t1), but this is for convenience of explanation. Therefore, the present invention provides the length from one end of the steel beam web 5-1 to one end of the indirect member 11-1, and the length from the other end of the steel beam web 5-1 to the other end of the indirect member 11-1. Are not limited to the same form.

この第9の例においても、第1の例と同様に、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。   Also in the ninth example, since the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1 as in the first example, the full strength of the steel beam can be recovered. .

図10は、図13中の破線で示した部分8の第10の例を示す図である。
図10に示すように、この第10の例においては、第1の鉄骨梁補強金具7−10−1と第2の鉄骨梁補強金具7−10−2とがSRC梁1の貫通孔6に略嵌合されている。
第1の鉄骨梁補強金具7−10−1の一端と第2の鉄骨梁補強金具7−10−2の他端とには、一端側に凸部を具備する間接部材11−2がすみ肉溶接9されており、この間接部材11−2における一端側の凸部と他端側の平面とが、それぞれ、鉄骨梁ウエブ5−1にすみ肉溶接9されている。
ここで、この鉄骨梁補強金具7−10−1、7−10−2においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−10−1、7−10−2においては、鉄骨梁ウエブ5−1の一端側から間接部材11−2の一端までの長さt1と鉄骨梁ウエブ5−1の他端側から間接部材11−2の他端までの長さt1とが、鉄骨梁ウエブ5−1の厚みtwの0.7倍以上である。なお、図10に示した第10の例においては、鉄骨梁ウエブ5−1の一端側から間接部材11−2の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材11−2の他端までの長さとを同一(ともにt1)にしたが、これは説明の便宜のためである。したがって、本発明は、鉄骨梁ウエブ5−1の一端側から間接部材11−2の一端までの長さと鉄骨梁ウエブ5−1の他端側から間接部材11−2の他端までの長さとが同一である形態に限定されるものではない。
FIG. 10 is a diagram showing a tenth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 10, in the tenth example, the first steel beam reinforcing bracket 7-10-1 and the second steel beam reinforcing bracket 7-10-2 are formed in the through-hole 6 of the SRC beam 1. It is almost fitted.
An indirect member 11-2 having a convex portion on one end side is filleted at one end of the first steel beam reinforcing bracket 7-10-1 and the other end of the second steel beam reinforcing bracket 7-10-2. Welding 9 is performed, and the convex portion on one end side and the flat surface on the other end side of this indirect member 11-2 are fillet welded 9 to the steel beam web 5-1.
Here, in the steel beam reinforcing metal fittings 7-10-1 and 7-10-2, the length ta in the axial direction is 0.5 to 200.0 times the thickness tb in the radial direction. Further, in the steel beam reinforcing metal fittings 7-10-1 and 7-10-2, the length t1 from one end side of the steel beam web 5-1 to one end of the indirect member 11-2 and the steel beam web 5-1. The length t1 from the other end side to the other end of the indirect member 11-2 is 0.7 times or more the thickness tw of the steel beam web 5-1. In the tenth example shown in FIG. 10, the length from one end of the steel beam web 5-1 to one end of the indirect member 11-2 and the indirect member 11- from the other end of the steel beam web 5-1. The length to the other end of 2 is the same (both are t1), but this is for convenience of explanation. Therefore, the present invention provides a length from one end of the steel beam web 5-1 to one end of the indirect member 11-2 and a length from the other end of the steel beam web 5-1 to the other end of the indirect member 11-2. Are not limited to the same form.

この第10の例においても、第1の例と同様に、溶接部9の許容力が、鉄骨梁ウエブ5−1の許容力よりも大きくなるため、鉄骨梁の全強を回復させることができる。   Also in the tenth example, since the allowable force of the welded portion 9 is larger than the allowable force of the steel beam web 5-1 as in the first example, the full strength of the steel beam can be recovered. .

図11は、図13中の破線で示した部分8の第11の例を示す図である。
図11に示すように、この第11の例においては、第1の鉄骨梁補強金具7−11−1と第2の鉄骨梁補強金具7−11−2とがSRC梁1の貫通孔6に略嵌合されている。
第1の鉄骨梁補強金具7−11−1の一端と第2の鉄骨梁補強金具7−11−2の他端とには、一端側に凸部を具備し、かつ、他端側に、曲率半径R(0≦R≦鉄骨梁ウエブ5−1の厚みtwの5倍)を有する第1接合面(曲面)と、その曲面に連なる、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)と、が形成された間接部材11−3がすみ肉溶接9されている。そして、間接部材11−3における他端側の第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10されている。
ここで、この鉄骨梁補強金具7−11−1、7−11−2においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−11−1、7−11−2においては、鉄骨梁ウエブ5−1の一端側から間接部材11−3の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。
この第11の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、間接部材11−3に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
また、この第11の例によれば、間接部材11−3における接合面に曲面が含まれているため、溶接金属10を開先底部12に容易に溶着することができる。したがって、この第11の例によれば、開先底部12において、品質的に良好な溶接を容易に行うことができる。
また、この第11の例によれば、鉄骨梁補強金具7−11−1、7−11−2の軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面が設けられているため、溶接中に発生するスラグ等が開先外部に排出され、品質的に良好な溶接を容易に行うことができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第11の例においては、間接部材11−3における第1接合面(曲面)の曲率半径が、0≦曲率半径≦(鉄骨梁ウエブ5−1の厚みtwの5倍)とされ、また、第2接合面(傾斜平面)の傾斜角度が、鉄骨梁補強金具7−11−1、7−11−2の軸方向から角度θ(15≦θ≦80)とされているため、溶接金属10の体積が不要に大きくなることがない。したがって、この第11の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。なお、第11の例においては、鉄骨梁補強金具7−11−1、7−11−2の軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面を設けたが、この角度θが30度〜70度の範囲においては、溶接金属10における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
また、第11の例においては、間接部材11−3における第1接合面を曲面とし、鉄骨梁ウエブ5−1における接合面を平面としたが、本発明においては、間接部材11−3における第1接合面および第2接合面を一体の同平面とし、鉄骨梁ウエブ5−1における接合面を曲面とすることもできる。この場合は、鉄骨梁ウエブ5−1には、鉄骨梁補強金具7−11−1、7−11−2の軸方向から角度θ(15度≦θ≦80)で傾斜する傾斜平面を設けることができる。
また、第11の例においては、間接部材11−3の他端側に、曲率半径Rを有する第1接合面(曲面)と、その曲面に連なる、軸方向から角度θ(15≦θ≦80)で傾斜する第2接合面(傾斜平面)と、を形成したが、本発明においては、間接部材11−3の他端側に、傾斜平面を設けることなく、曲率半径Rを有する曲面のみを設けることもできる。
FIG. 11 is a diagram showing an eleventh example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 11, in the eleventh example, the first steel beam reinforcing bracket 7-11-1 and the second steel beam reinforcing bracket 7-11-2 are formed in the through hole 6 of the SRC beam 1. It is almost fitted.
The one end of the first steel beam reinforcing bracket 7-11-1 and the other end of the second steel beam reinforcing bracket 7-11-2 have a convex portion on one end side, and on the other end side, A first joining surface (curved surface) having a radius of curvature R (0 ≦ R ≦ 5 times the thickness tw of the steel beam web 5-1) and an angle θ (15 ≦ θ ≦ 80) from the axial direction connected to the curved surface. The indirect member 11-3 formed with the inclined second joining surface (inclined plane) is fillet welded 9. The first joint surface and the second joint surface on the other end side of the indirect member 11-3 are butt welded 10 to the steel beam web 5-1.
Here, in the steel beam reinforcing metal fittings 7-11-1, 7-11-2, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. Moreover, in this steel beam reinforcement metal fittings 7-11-1, 7-11-2, the length t2 from one end side of the steel beam web 5-1 to the other end of the indirect member 11-3 is the steel beam web 5. It is larger than the thickness tw of -1.
According to the eleventh example, since all the joint surfaces of the steel beam web 5-1 are welded to the indirect member 11-3, the full strength of the steel beam can be recovered.
Further, according to the eleventh example, since the joint surface of the indirect member 11-3 includes a curved surface, the weld metal 10 can be easily welded to the groove bottom portion 12. Therefore, according to the eleventh example, it is possible to easily perform welding with good quality at the groove bottom portion 12.
In addition, according to the eleventh example, the second joint surface is provided that is inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing brackets 7-11-1 and 7-11-2. Therefore, slag generated during welding is discharged to the outside of the groove and welding with good quality can be easily performed.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in this eleventh example, the curvature radius of the first joint surface (curved surface) in the indirect member 11-3 is 0 ≦ curvature radius ≦ (5 times the thickness tw of the steel beam web 5-1). Further, since the inclination angle of the second joint surface (inclined plane) is set to an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing brackets 7-11-1 and 7-11-2, welding is performed. The volume of the metal 10 does not increase unnecessarily. Therefore, according to the eleventh example, the probability of occurrence of defects in the weld metal 10 can be reduced. In the eleventh example, the second joint surface inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing brackets 7-11-1, 7-11-2 is provided. When the angle θ is in the range of 30 degrees to 70 degrees, the probability of occurrence of defects in the weld metal 10 can be further reduced, and the amount of the weld metal 10 to be used can be reduced, thereby reducing the cost. You can also.
In the eleventh example, the first joint surface of the indirect member 11-3 is a curved surface, and the joint surface of the steel beam web 5-1 is a flat surface. The 1 joining surface and the 2nd joining surface can also be made into the same same plane, and the joining surface in the steel beam web 5-1 can also be made into a curved surface. In this case, the steel beam web 5-1 is provided with an inclined plane that is inclined at an angle θ (15 ° ≦ θ ≦ 80) from the axial direction of the steel beam reinforcing brackets 7-11-1, 7-11-2. Can do.
In the eleventh example, on the other end side of the indirect member 11-3, a first joint surface (curved surface) having a radius of curvature R and an angle θ (15 ≦ θ ≦ 80) from the axial direction connected to the curved surface. In the present invention, only the curved surface having the curvature radius R is provided on the other end side of the indirect member 11-3 without providing the inclined plane. It can also be provided.

図12は、図13中の破線で示した部分8の第12の例を示す図である。
図12に示すように、この第12の例においては、第1の鉄骨梁補強金具7−12−1と第2の鉄骨梁補強金具7−12−2とがSRC梁1の貫通孔6に略嵌合されている。
第1の鉄骨梁補強金具7−12−1の一端と第2の鉄骨梁補強金具7−12−2の他端とには、一端側に凸部を具備し、かつ、鉄骨梁補強金具7−12−1、7−12−2の半径方向に略平行な第1接合面と鉄骨梁補強金具7−12−1、7−12−2の軸方向から角度θ(15≦θ≦80)で傾いた第2接合面とが形成された間接部材11−4がすみ肉溶接9されており、この間接部材11−4における第1接合面と第2接合面とが、鉄骨梁ウエブ5−1に突合せ溶接10されている。
ここで、この鉄骨梁補強金具7−12−1、7−12−2においては、その軸方向の長さtaが、半径方向の肉厚tbの0.5倍〜200.0倍である。また、この鉄骨梁補強金具7−12−1、7−12−2においては、鉄骨梁ウエブの一端側から間接部材11−4の他端までの長さt2が、鉄骨梁ウエブ5−1の厚みtwよりも大きい。また、この鉄骨梁補強金具7−12−1、7−12−2においては、間接部材11−4における第1接合面の長さLが、0≦L<(鉄骨梁ウエブ5−1の厚みtw)という条件を満たしている。
この第12の例によれば、鉄骨梁ウエブ5−1の接合面のすべてが、間接部材11−4に溶接されることとなるため、鉄骨梁の全強を回復させることができる。
また、一般に、溶接金属10の体積が大きくなると、多層肉盛り溶接を行わなければならなくなり、スラグが溶接金属中に残存したり、溶着不良が発生したりなどして、溶接金属10における欠陥の発生確率が高くなる。しかしながら、この第12の例においては、間接部材11−4における第2接合面の傾斜角度が軸方向から角度θ(15≦θ≦80)とされているため、溶接金属10の体積が不要に大きくなることがない。したがって、この第12の例によれば、溶接金属10における欠陥の発生確率を小さくすることができる。
なお、第12の例においては、鉄骨梁補強金具7−12−1、7−12−2における第2接合面を軸方向から角度θ(15≦θ≦80)で傾かせたが、この角度θが30度〜70度の範囲においては、溶接部における欠陥の発生確率をより小さくすることができるとともに、使用する溶接金属10の量を少なくすることができるため、コストダウンを図ることもできる。
なお、第12の例においては、間接部材11−4における接合面を軸方向から傾け、鉄骨梁ウエブ5−1における接合面を軸方向に略平行としたが、本発明においては、間接部材11−4における接合面を軸方向に略平行とし、鉄骨梁ウエブ5−1における接合面を軸方向から角度θ(15≦θ≦80)で傾けることもできる。
FIG. 12 is a diagram showing a twelfth example of the portion 8 indicated by a broken line in FIG.
As shown in FIG. 12, in the twelfth example, the first steel beam reinforcing bracket 7-12-1 and the second steel beam reinforcing bracket 7-12-2 are formed in the through hole 6 of the SRC beam 1. It is almost fitted.
The one end of the first steel beam reinforcing bracket 7-12-1 and the other end of the second steel beam reinforcing bracket 7-12-2 have a convex portion on one end side, and the steel beam reinforcing bracket 7 The angle θ (15 ≦ θ ≦ 80) from the first joint surface substantially parallel to the radial direction of -12-1 and 7-12-2 and the axial direction of the steel beam reinforcing brackets 7-12-1 and 7-12-2 The indirect member 11-4 formed with the inclined second joint surface is fillet welded 9, and the first joint surface and the second joint surface of the indirect member 11-4 are connected to the steel beam web 5- 1 is butt welded 10.
Here, in the steel beam reinforcing metal fittings 7-12-1 and 7-12-2, the length ta in the axial direction is 0.5 to 200.0 times the wall thickness tb in the radial direction. Further, in the steel beam reinforcing metal fittings 7-12-1 and 7-12-2, the length t2 from one end side of the steel beam web to the other end of the indirect member 11-4 is equal to that of the steel beam web 5-1. It is larger than the thickness tw. Moreover, in this steel beam reinforcement metal fittings 7-12-1 and 7-12-2, the length L of the first joint surface of the indirect member 11-4 is 0 ≦ L <(the thickness of the steel beam web 5-1. tw) is satisfied.
According to the twelfth example, since all the joining surfaces of the steel beam web 5-1 are welded to the indirect member 11-4, the full strength of the steel beam can be recovered.
In general, when the volume of the weld metal 10 is increased, multilayer build-up welding must be performed, and slag remains in the weld metal or defective welding occurs. The probability of occurrence increases. However, in the twelfth example, since the inclination angle of the second joint surface in the indirect member 11-4 is set to the angle θ (15 ≦ θ ≦ 80) from the axial direction, the volume of the weld metal 10 is unnecessary. It will not grow. Therefore, according to the twelfth example, the probability of occurrence of defects in the weld metal 10 can be reduced.
In the twelfth example, the second joint surfaces of the steel beam reinforcing brackets 7-12-1 and 7-12-2 are inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction. When θ is in the range of 30 ° to 70 °, the probability of occurrence of defects in the welded portion can be further reduced, and the amount of weld metal 10 to be used can be reduced, so that the cost can be reduced. .
In the twelfth example, the joint surface of the indirect member 11-4 is inclined from the axial direction, and the joint surface of the steel beam web 5-1 is substantially parallel to the axial direction. However, in the present invention, the indirect member 11 is used. -4 can be made substantially parallel to the axial direction, and the joint surface of the steel beam web 5-1 can be inclined at an angle θ (15 ≦ θ ≦ 80) from the axial direction.

なお、以上説明した本発明の実施の形態においては、鉄骨梁補強金具をSRC構造における鉄骨梁の鉄骨梁ウエブに設けられた貫通孔に略嵌合させ、この嵌合させた鉄骨梁補強金具を鉄骨梁ウエブに溶接することにより、SRCにおける鉄骨梁を補強することとしたが、本発明に係る鉄骨梁補強金具により補強される鉄骨梁がSRC構造における鉄骨梁に限定されるものでないことはいうまでもない。したがって、本発明においては、たとえば、S構造における鉄骨梁の鉄骨梁ウエブにおける貫通孔に鉄骨梁補強金具を略嵌合させ、この嵌合させた鉄骨梁補強金具を、鉄骨梁ウエブに設けられた貫通孔における周縁部に溶接することにより、S構造における鉄骨梁を補強することもできる。   In the embodiment of the present invention described above, the steel beam reinforcing metal fitting is substantially fitted in a through hole provided in the steel beam web of the steel beam in the SRC structure, and the fitted steel beam reinforcing metal fitting is used. Although the steel beam in the SRC is reinforced by welding to the steel beam web, it is said that the steel beam reinforced by the steel beam reinforcing bracket according to the present invention is not limited to the steel beam in the SRC structure. Not too long. Therefore, in the present invention, for example, a steel beam reinforcing bracket is substantially fitted into a through hole in a steel beam web of a steel beam in an S structure, and the fitted steel beam reinforcing bracket is provided on the steel beam web. The steel beam in S structure can also be reinforced by welding to the peripheral part in a through-hole.

(付記) 本発明は、次の付記を有する。 (Additional remark) This invention has the following additional remarks.

(付記1)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
外周部が、前記鉄骨梁ウエブにすみ肉溶接され、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
前記鉄骨梁ウエブの一端側から前記外周部の一端までの長さと前記鉄骨梁ウエブの他端側から前記外周部の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、
ことを特徴とする鉄骨梁補強金具。
(付記2)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
外周部が、前記鉄骨梁ウエブに突合せ溶接され、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
前記鉄骨梁ウエブの一端側から前記外周部の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記外周部における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記3)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
外周部が、前記鉄骨梁ウエブに突合せ溶接され、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
前記鉄骨梁ウエブの一端側から前記外周部の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記外周部における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ≦前記鉄骨梁ウエブの厚み)と、前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面と、が含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記4)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
外周部に、前記鉄骨梁ウエブにすみ肉溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の一端までの長さと前記鉄骨梁ウエブの他端側から前記間接部材の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、
ことを特徴とする鉄骨梁補強金具。
(付記5)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
外周部に、前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記6)
鉄骨梁の貫通孔に略嵌合される鉄骨梁補強金具において、
軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
外周部に、前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ≦前記鉄骨梁ウエブの厚み)と、前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面と、が含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記7)
鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
前記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブにすみ肉溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の一端までの長さと前記鉄骨梁ウエブの他端側から前記間接部材の他端までの長さとが、前記鉄骨梁ウエブの厚みの0.7倍以上である、
ことを特徴とする鉄骨梁補強金具。
(付記8)
鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
第1の鉄骨梁補強金具の一端と第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に曲面(0≦曲率半径≦前記鉄骨梁ウエブの厚みの5倍)が含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記9)
鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
前記第1の鉄骨梁補強金具と前記第2の鉄骨梁補強金具とは、軸方向の長さが、半径方向の肉厚の0.5倍〜200.0倍であり、
前記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面(0≦長さ≦前記鉄骨梁ウエブの厚み)と前記軸方向から角度θ(15≦θ≦80)で傾いた第2接合面とが含まれている、
ことを特徴とする鉄骨梁補強金具。
(付記10)
付記1〜付記9のいずれか1項に記載の鉄骨梁補強金具において、さらに、その体積が、前記貫通孔の内部に形成された空間部の体積の1.0倍〜3.0倍であることを特徴とする鉄骨梁補強金具。
(付記11)
前記貫通孔より外径が大きいフランジ部を前記外周部の軸方向の片面側に形成したことを特徴とする付記1、4、または7に記載の鉄骨梁補強金具。
(付記12)
前記貫通孔より外径が大きいフランジ部を前記外周部の軸方向の片面側に形成し、
前記外周部を軸方向の他端側に向かって徐々に縮径させたことを特徴とする付記1、4、または7に記載の鉄骨梁補強金具。
(付記13)
前記貫通孔より外径が大きいフランジ部を前記外周部の軸方向の片面側に形成し、
前記外周部の最小外径部から前記フランジ部外周までの長さを前記外周部の最小外径の半分以下とし、前記フランジ部の軸方向の長さを当該鉄骨梁補強金具の軸方向の長さの半分以下としたことを特徴とする付記1、4、または7に記載の鉄骨梁補強金具。
(付記14)
前記貫通孔より外径が大きいフランジ部を前記外周部の軸方向の片面側に形成し、
前記外周部を軸方向の他端側に向かって徐々に縮径させ、
前記外周部の最小外径部から前記フランジ部外周までの長さを前記外周部の最小外径の半分以下とし、前記フランジ部の軸方向の長さを当該鉄骨梁補強金具の軸方向の長さの半分以下としたことを特徴とする付記1、4、または7に記載の鉄骨梁補強金具。
(付記15)
付記1〜9のいずれか1項に記載の鉄骨梁補強金具において、さらに、その内径を前記鉄骨梁の高さ方向の長さの0.8倍以下としたことを特徴とする鉄骨梁補強金具。
(付記16)
前記貫通孔の内縁部に直接当接する3以上の位置決め突起部を前記外周部に形成したことを特徴とする付記1、4、または7に記載の鉄骨梁補強金具。
(付記17)
前記貫通孔の内縁部に直接当接する3以上の位置決め突起部を前記間接部材に形成したことを特徴とする付記2、3、5、6、8、または9に記載の鉄骨梁補強金具。
(付記18)
柱鉄骨梁接合構造を構成する鉄骨梁に形成された貫通孔の周縁部に付記1、4、または7に記載の鉄骨梁補強金具の外周部を溶接固定して形成した鉄骨梁貫通孔補強構造であって、前記柱と前記鉄骨梁との接合位置から前記鉄骨梁補強構造の軸心までの距離を前記鉄骨梁の高さ方向における長さの2倍以下としたことを特徴とする鉄骨梁貫通孔補強構造。
(付記19)
柱鉄骨梁接合構造を構成する鉄骨梁に形成された貫通孔の周縁部に付記2、3、5、6、8、または9に記載の鉄骨梁補強金具の外周部に溶接された間接部材を溶接固定して形成した鉄骨梁貫通孔補強構造であって、前記柱と前記鉄骨梁との接合位置から前記鉄骨梁補強構造の軸心までの距離を前記鉄骨梁の高さ方向における長さの2倍以下としたことを特徴とする鉄骨梁貫通孔補強構造。
(Appendix 1)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The outer periphery is fillet welded to the steel beam web,
The axial length is 0.5 to 200.0 times the radial thickness,
The length from one end of the steel beam web to one end of the outer periphery and the length from the other end of the steel beam web to the other end of the outer periphery are 0.7 times or more the thickness of the steel beam web Is,
Steel beam reinforcing metal fittings characterized by that.
(Appendix 2)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The outer periphery is butt welded to the steel beam web,
The axial length is 0.5 to 200.0 times the radial thickness,
The length from one end side of the steel beam web to the other end of the outer periphery is greater than the thickness of the steel beam web,
A curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web) is included in the joint surface with the steel beam web in the outer peripheral portion.
Steel beam reinforcing metal fittings characterized by that.
(Appendix 3)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The outer periphery is butt welded to the steel beam web,
The axial length is 0.5 to 200.0 times the radial thickness,
The length from one end side of the steel beam web to the other end of the outer periphery is greater than the thickness of the steel beam web,
A first joint surface (0 ≦ length ≦ thickness of the steel beam web) substantially parallel to the radial direction is formed on a joint surface of the outer peripheral portion with the steel beam web, and an angle θ (15 ≦ θ) from the axial direction. ≦ 80) and the second joint surface inclined.
Steel beam reinforcing metal fittings characterized by that.
(Appendix 4)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The axial length is 0.5 to 200.0 times the radial thickness,
An indirect member fillet welded to the steel beam web is fillet welded to the outer periphery,
The length from one end side of the steel beam web to one end of the indirect member and the length from the other end side of the steel beam web to the other end of the indirect member are 0.7 times or more the thickness of the steel beam web Is,
Steel beam reinforcing metal fittings characterized by that.
(Appendix 5)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The axial length is 0.5 to 200.0 times the radial thickness,
An indirect member butt welded to the steel beam web is fillet welded to the outer periphery,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
The joint surface of the indirect member with the steel beam web includes a curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web).
Steel beam reinforcing metal fittings characterized by that.
(Appendix 6)
In the steel beam reinforcement bracket that is approximately fitted into the through hole of the steel beam,
The axial length is 0.5 to 200.0 times the radial thickness,
An indirect member butt welded to the steel beam web is fillet welded to the outer periphery,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
A first joint surface (0 ≦ length ≦ thickness of the steel beam web) substantially parallel to the radial direction is formed on a joint surface of the indirect member with the steel beam web, and an angle θ (15 ≦ θ) from the axial direction. ≦ 80) and the second joint surface inclined.
Steel beam reinforcing metal fittings characterized by that.
(Appendix 7)
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
The first steel beam reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the radial thickness,
An indirect member fillet welded to the steel beam web is fillet welded to one end of the first steel beam reinforcement metal fitting and the other end of the second steel beam reinforcement metal fitting,
The length from one end side of the steel beam web to one end of the indirect member and the length from the other end side of the steel beam web to the other end of the indirect member are 0.7 times or more the thickness of the steel beam web Is,
Steel beam reinforcing metal fittings characterized by that.
(Appendix 8)
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
The first steel beam reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the radial thickness,
An indirect member butt welded to the steel beam web is fillet welded to one end of the first steel beam reinforcing bracket and the other end of the second steel beam reinforcing bracket,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
The joint surface of the indirect member with the steel beam web includes a curved surface (0 ≦ curvature radius ≦ 5 times the thickness of the steel beam web).
Steel beam reinforcing metal fittings characterized by that.
(Appendix 9)
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
The first steel beam reinforcing metal fitting and the second steel beam reinforcing metal fitting have an axial length of 0.5 to 200.0 times the radial thickness,
An indirect member butt welded to the steel beam web is fillet welded to one end of the first steel beam reinforcing metal fitting and the other end of the second steel beam reinforcing metal fitting,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
An angle θ (15 ≦ θ ≦) from the first joint surface (0 ≦ length ≦ thickness of the steel beam web) substantially parallel to the radial direction and the axial direction of the joint surface of the indirect member with the steel beam web. 80) and the second joint surface inclined.
Steel beam reinforcing metal fittings characterized by that.
(Appendix 10)
In the steel beam reinforcing bracket according to any one of supplementary notes 1 to 9, the volume is 1.0 to 3.0 times the volume of the space portion formed inside the through hole. Steel beam reinforcing metal fittings characterized by that.
(Appendix 11)
The steel beam reinforcing bracket according to appendix 1, 4, or 7, wherein a flange portion having an outer diameter larger than that of the through hole is formed on one side of the outer peripheral portion in the axial direction.
(Appendix 12)
A flange portion having a larger outer diameter than the through hole is formed on one side in the axial direction of the outer peripheral portion,
The steel beam reinforcing bracket according to appendix 1, 4, or 7, wherein the outer peripheral portion is gradually reduced in diameter toward the other end side in the axial direction.
(Appendix 13)
A flange portion having a larger outer diameter than the through hole is formed on one side in the axial direction of the outer peripheral portion,
The length from the minimum outer diameter portion of the outer peripheral portion to the outer periphery of the flange portion is less than or equal to half of the minimum outer diameter of the outer peripheral portion, and the axial length of the flange portion is the axial length of the steel beam reinforcing bracket. The steel beam reinforcing metal fitting according to appendix 1, 4 or 7, wherein the steel beam reinforcing metal fitting is not more than half of the thickness.
(Appendix 14)
A flange portion having a larger outer diameter than the through hole is formed on one side in the axial direction of the outer peripheral portion,
The outer peripheral portion is gradually reduced in diameter toward the other end side in the axial direction,
The length from the minimum outer diameter portion of the outer peripheral portion to the outer periphery of the flange portion is less than or equal to half of the minimum outer diameter of the outer peripheral portion, and the axial length of the flange portion is the axial length of the steel beam reinforcing bracket. The steel beam reinforcing metal fitting according to appendix 1, 4 or 7, wherein the steel beam reinforcing metal fitting is not more than half of the thickness.
(Appendix 15)
The steel beam reinforcing bracket according to any one of appendices 1 to 9, further comprising an inner diameter of 0.8 times or less of a length in the height direction of the steel beam. .
(Appendix 16)
The steel beam reinforcing bracket according to appendix 1, 4, or 7, wherein three or more positioning protrusions that directly contact the inner edge of the through hole are formed on the outer peripheral portion.
(Appendix 17)
The steel beam reinforcing bracket according to appendix 2, 3, 5, 6, 8, or 9, wherein three or more positioning projections that directly contact the inner edge of the through hole are formed on the indirect member.
(Appendix 18)
A steel beam through-hole reinforcing structure formed by welding and fixing the outer periphery of the steel beam reinforcing metal fitting according to appendix 1, 4 or 7 to the peripheral portion of the through-hole formed in the steel beam constituting the column steel beam joint structure The distance between the joining position of the column and the steel beam to the axis of the steel beam reinforcing structure is not more than twice the length in the height direction of the steel beam. Through hole reinforcement structure.
(Appendix 19)
The indirect member welded to the outer peripheral portion of the steel beam reinforcing metal fitting according to appendix 2, 3, 5, 6, 8, or 9 is attached to the peripheral portion of the through hole formed in the steel beam constituting the column steel beam joint structure. A steel beam through-hole reinforcing structure formed by welding and fixing, wherein the distance from the joint position between the column and the steel beam to the axis of the steel beam reinforcing structure is the length in the height direction of the steel beam. A steel beam through-hole reinforcement structure characterized by being made twice or less.

本発明に係る鉄骨梁補強金具は、S構造における鉄骨梁やSRC構造における鉄骨梁に利用することができる。   The steel beam reinforcing metal fitting according to the present invention can be used for a steel beam in an S structure or a steel beam in an SRC structure.

Claims (3)

鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブにすみ肉溶接される間接部材がすみ肉溶接され
とを特徴とする鉄骨梁補強金具。
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
Ru is pre SL end and the second fixing member to the be fillet welded to the steel beam web to the other end of the steel beams reinforcing brackets fillet welding of the first steel beam reinforcing bracket,
Steel beam reinforcement bracket, wherein a call.
鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
前記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に曲面が含まれている、
ことを特徴とする鉄骨梁補強金具。
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
Wherein the first fixing member to the being butt welded to steel beam web to the other end of the one end and the second steel beams reinforce bracket steel beams reinforcing brackets are fillet welded,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
It includes songs surface on the bonding surface between the steel beam web in the fixing member,
Steel beam reinforcing metal fittings characterized by that.
鉄骨梁の貫通孔に略嵌合される、第1の鉄骨梁補強金具と第2の鉄骨梁補強金具とからなる一対の鉄骨梁補強金具において、
記第1の鉄骨梁補強金具の一端と前記第2の鉄骨梁補強金具の他端とに前記鉄骨梁ウエブに突合せ溶接される間接部材がすみ肉溶接され、
前記鉄骨梁ウエブの一端側から前記間接部材の他端までの長さが、前記鉄骨梁ウエブの厚みよりも大きく、
前記間接部材における前記鉄骨梁ウエブとの接合面に、前記半径方向に略平行な第1接合面と、前記軸方向から傾いた第2接合面と、が含まれている、
ことを特徴とする鉄骨梁補強金具。
In a pair of steel beam reinforcing metal fittings that are substantially fitted in the through-holes of the steel beam and are composed of a first steel beam reinforcing metal fitting and a second steel beam reinforcing metal fitting,
Before SL is one and the second fixing member to said being butt welded to steel beam web to the other end of the steel beams reinforcing brackets fillet welding of the first steel beam reinforcing bracket,
The length from one end side of the steel beam web to the other end of the indirect member is larger than the thickness of the steel beam web,
Wherein the junction surface between the steel beam web in the fixing member, and the first joint surface substantially parallel to the radial direction, and a second joint surface had the axial direction or al tilting, it is included,
Steel beam reinforcing metal fittings characterized by that.
JP2006531103A 2004-08-17 2004-08-17 Steel beam reinforcement bracket Expired - Lifetime JP4616837B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/011776 WO2006018865A1 (en) 2004-08-17 2004-08-17 Steel-framed beam reinforcing metal fixture

Publications (2)

Publication Number Publication Date
JPWO2006018865A1 JPWO2006018865A1 (en) 2008-05-01
JP4616837B2 true JP4616837B2 (en) 2011-01-19

Family

ID=35907262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006531103A Expired - Lifetime JP4616837B2 (en) 2004-08-17 2004-08-17 Steel beam reinforcement bracket

Country Status (3)

Country Link
US (1) US20080047221A1 (en)
JP (1) JP4616837B2 (en)
WO (1) WO2006018865A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008248617A (en) * 2007-03-30 2008-10-16 Hitachi Metals Techno Ltd Steel frame beam reinforcing metal fitting
JP2014020162A (en) * 2012-07-20 2014-02-03 Hitachi Metals Techno Ltd Beam reinforcing metallic material and beam reinforcing structure
JP6479352B2 (en) * 2014-06-23 2019-03-06 株式会社フジタ Hybrid beam
JP6479351B2 (en) * 2014-06-23 2019-03-06 株式会社フジタ Hybrid beam
JP6523729B2 (en) * 2015-03-24 2019-06-05 センクシア株式会社 Ring beam reinforcement bracket, beam reinforcement structure
JP7246214B2 (en) * 2019-03-15 2023-03-27 センクシア株式会社 Beam reinforcement brackets and beam reinforcement structures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63219745A (en) * 1987-03-10 1988-09-13 清水建設株式会社 Reinforcement beam piercing hole structure
JPH04103917U (en) * 1991-02-15 1992-09-08 大和ハウス工業株式会社 Steel hole reinforcement material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU84772A1 (en) * 1983-04-25 1984-11-28 Arbed ASSOCIATES
LU84966A1 (en) * 1983-08-12 1985-04-24 Arbed COMPOSITE PROFILES
JPS6192252A (en) * 1984-10-08 1986-05-10 清水建設株式会社 Beam piercing sleeve
JP2645365B2 (en) * 1990-02-22 1997-08-25 清水建設株式会社 Beam-column joint
WO2002046548A1 (en) * 2000-12-08 2002-06-13 Diversakore Llc Composite structural framing system
JP4065180B2 (en) * 2002-11-08 2008-03-19 Towa株式会社 Resin sealing mold

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63219745A (en) * 1987-03-10 1988-09-13 清水建設株式会社 Reinforcement beam piercing hole structure
JPH04103917U (en) * 1991-02-15 1992-09-08 大和ハウス工業株式会社 Steel hole reinforcement material

Also Published As

Publication number Publication date
US20080047221A1 (en) 2008-02-28
WO2006018865A1 (en) 2006-02-23
JPWO2006018865A1 (en) 2008-05-01

Similar Documents

Publication Publication Date Title
JP5212498B2 (en) Car body rear structure
US6092840A (en) Structure of steering support beam for vehicle
JP4902035B2 (en) Structure
JP4119919B2 (en) Steering column bracket
US20040161326A1 (en) Boom structure of construction machine and manufacturing method thereof
JP4616837B2 (en) Steel beam reinforcement bracket
JP2008114728A (en) Front pillar structure of convertible
JP2008230453A (en) Center pillar structure
JP2003314766A (en) Butt joint between two pipe material made of sheet metal, and method for forming joint flange of butt joint
JP2007131264A (en) Rear vehicle-body structure for vehicle
JP2010076473A (en) I-shaped suspension arm for vehicle
JP2007118929A (en) Rear roof rail part structure in back-door vehicle
JP5262979B2 (en) Vehicle door structure
JP5856902B2 (en) Joint structure and truss structure
JP3945852B2 (en) Joint structure for automotive structural members
JP2018188872A (en) Joint structure for brace and column-beam
JP6133256B2 (en) Reinforcement structure of reinforcing member and steel perforated beam
JP2010155569A (en) Striker fixing structure
JP2007062453A (en) Pillar structure for automobile
JPH08225084A (en) Junction structure for pillar section
JP2005271833A (en) Revolving frame structure of upper part revolving body
JPH1122000A (en) Joining structure of column and beam and building unit
JP5244536B2 (en) Accessory mounting bracket and mounting method thereof
JP2012051496A (en) Front structure of vehicle
JP5954980B2 (en) Tunnel segment

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100603

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100728

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101019

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101022

R150 Certificate of patent or registration of utility model

Ref document number: 4616837

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131029

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250