JP2009215824A - Reinforcement construction of steel structure - Google Patents

Reinforcement construction of steel structure Download PDF

Info

Publication number
JP2009215824A
JP2009215824A JP2008062568A JP2008062568A JP2009215824A JP 2009215824 A JP2009215824 A JP 2009215824A JP 2008062568 A JP2008062568 A JP 2008062568A JP 2008062568 A JP2008062568 A JP 2008062568A JP 2009215824 A JP2009215824 A JP 2009215824A
Authority
JP
Japan
Prior art keywords
plate
flanges
steel
angle
reinforcing
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.)
Granted
Application number
JP2008062568A
Other languages
Japanese (ja)
Other versions
JP5283404B2 (en
Inventor
Yasuto Sasaki
康人 佐々木
Takashi Asano
孝 浅野
Shigeo Akiyama
茂雄 秋山
Satoshi Sasaki
聡 佐々木
Daisuke Katsura
大輔 桂
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.)
Fujita Corp
Original Assignee
Fujita Corp
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 Fujita Corp filed Critical Fujita Corp
Priority to JP2008062568A priority Critical patent/JP5283404B2/en
Publication of JP2009215824A publication Critical patent/JP2009215824A/en
Application granted granted Critical
Publication of JP5283404B2 publication Critical patent/JP5283404B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement construction of a steel structure capable of reinforcing a steel member by a simple constitution while suppressing the scatter of a fire in an existing building and reducing work by a qualified person. <P>SOLUTION: Two reinforcing steel plates 22 are individually placed over the whole length in the longitudinal direction of a lower chord member 8 and a diagonal member 10 in contact with flanges 1202, 1204 of angle steel members 12 constituting the lower chord member 8 and the diagonal member 10. The circumference of the two angle steel members 12 are surrounded at a plurality of positions spaced apart in the longitudinal direction by a sandwiched plate 24, a first bracket 30 and a second bracket 32 in the direction vertical to the longitudinal direction of the angle steel member 12, two ends in the width direction of the two reinforcing steel plates 22 are pressed against the corresponding flanges 1202, 1204 of the angle steel member 12, and simultaneously the two angle steel members 12 are pressed in the direction of pressing and fastening the sandwiched plate 24 by the flange 1202 opposite to the two angle steel members 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は鋼構造の補強構造に関し、より詳細には、山形鋼を用いて構成された鋼部材を含む鋼構造の補強構造に関する。   The present invention relates to a steel structure reinforcement structure, and more particularly, to a steel structure reinforcement structure including a steel member made of angle steel.

鋼構造（鉄骨構造）として、トラス構造、ブレース構造、ラーメン構造などが知られており、それらの鋼構造は鋼部材を用いて構成されている。
そして、このような鋼構造を補強する構造として、従来、鋼構造を構成する鋼部材に、補強部材を溶着することが行なわれている。
また、補強部材として山形鋼を用い、山形鋼を金物により鋼部材に締め付ける方法も知られている（特許文献１）。
特開２００７−３１５０５６ As a steel structure (steel structure), a truss structure, a brace structure, a ramen structure, and the like are known, and these steel structures are configured using steel members.
And as a structure which reinforces such a steel structure, welding a reinforcement member is conventionally performed to the steel member which comprises a steel structure.
In addition, a method is also known in which angle steel is used as a reinforcing member, and the angle steel is fastened to a steel member with a hardware (Patent Document 1).
JP2007-315056

しかしながら、鋼部材に、補強部材を溶着する方法では、下記の不具合が生じる。
（Ａ）既存建物内に飛散する火気の量が多くなる不具合がある。
（Ｂ）すべての補強を有資格者により行う必要があり、特に倉庫や展示場などの大規模な構造物である場合には、トラス梁の長さが大きく、また、本数も多くなることから、コストおよび人員配置の手間がかかる不具合がある。
（Ｃ）溶接量が多くなるため、必要以上に既存の部材を傷める恐れがある。
（Ｄ）既存部材と補強部材の溶接に断続溶接が行われるので、溶接欠陥が生じ易い不具合がある。
また、山形鋼を金物により鋼部材に締め付ける方法では、適用できる山形鋼のサイズが限定されてしまい、適用しづらい不具合がある。 However, in the method of welding the reinforcing member to the steel member, the following problems occur.
(A) There is a problem that the amount of fire scattered in the existing building increases.
(B) All reinforcements must be performed by qualified personnel, especially in the case of large-scale structures such as warehouses and exhibition halls, because the length of the truss beams and the number of truss beams increase. There is a problem that costs and labor are required.
(C) Since the amount of welding increases, existing members may be damaged more than necessary.
(D) Since intermittent welding is performed for welding the existing member and the reinforcing member, there is a problem that a welding defect is likely to occur.
Moreover, in the method of tightening the angle steel to the steel member with a hardware, the size of the angle steel that can be applied is limited, and it is difficult to apply.

本発明は前記事情に鑑み案出されたものであって、本発明の目的は、既存建物内への火気の飛散を抑制し、また、有資格者による作業を削減し、既存の部材を傷めることなく、簡単な構成で鋼部材を補強できる鋼構造の補強構造を提供することにある。   The present invention has been devised in view of the above circumstances, and an object of the present invention is to suppress the scattering of fire into an existing building, reduce work by qualified personnel, and damage existing members. It is providing the reinforcement structure of the steel structure which can reinforce a steel member by simple structure without it.

前記目的を達成するため本発明は、２つの山形鋼の一方のフランジを対向させ他方のフランジを互いに反対方向に突出するように配置されて構成された鋼部材を含む鋼構造の補強構造であって、幅方向の両端を各山形鋼のフランジに当接してそれら山形鋼に沿って延在する２つの補強鋼板と、前記各山形鋼の長手方向に間隔をおいた複数箇所においてそれぞれ２つの山形鋼の対向するフランジ間に挿入される複数の被挟持板と、前記被挟持板が配置された各箇所において前記２つの山形鋼の長手方向と直交する方向においてそれら２つの山形鋼の周囲を囲み前記２つの補強鋼板の幅方向の両端を対応する山形鋼の各フランジに押圧すると共に２つの山形鋼の対向するフランジで前記被挟持板を締め付ける方向に２つの山形鋼を押圧する複数の締め付け具とを備えることを特徴とする。   In order to achieve the above-mentioned object, the present invention is a steel structure reinforcing structure including a steel member arranged so that one flange of two angle steels faces each other and the other flange protrudes in opposite directions. In addition, two reinforcing steel plates extending along the angle steel with both ends in the width direction being in contact with the flanges of the angle steel, and two angle shapes at a plurality of positions spaced in the longitudinal direction of each angle steel A plurality of sandwiched plates inserted between opposing flanges of steel, and surrounding each of the two angle steels in a direction orthogonal to the longitudinal direction of the two angle steels at each location where the sandwiched plates are disposed A plurality of two angle steels that press both ends in the width direction of the two reinforcing steel plates to the corresponding flanges of the angle steel and press the two angle steels in the direction in which the sandwiched plate is clamped by the opposing flanges of the two angle steels. Characterized in that it comprises a fit with tool.

本発明によれば、補強鋼板が鋼部材に一体化されることにより、断面増加によりそれらの圧縮、せん断強度を増大させることができる。また、開断面の鋼部材を閉断面にできるので、それらの座屈強度を増大させることができる。
そして、本発明によれば、締め付け具を用いるので、ボルト、ナットなどの締結作業により補強でき、溶接作業を大幅に削減して既存建物内に飛散する火気の量を抑制できる。
また、有資格者による作業を削減できるため、人員配置を迅速に行なえ、工期の短縮化、コストの低減化を図る上で有利となる。
また、溶接作業を削減できるためそれに伴う作業足場、養生等を軽微にすることができ、また、既存の部材を傷めるという恐れも解消でき、溶接欠陥についての問題も解消できる。 According to the present invention, by integrating the reinforcing steel plate into the steel member, the compression and shear strength can be increased by increasing the cross section. Moreover, since the steel member of an open cross section can be made into a closed cross section, those buckling strengths can be increased.
And according to this invention, since a fastening tool is used, it can reinforce by fastening work, such as a bolt and a nut, can greatly reduce welding work and can suppress the quantity of the fire scattered in an existing building.
In addition, since work by qualified personnel can be reduced, personnel can be quickly arranged, which is advantageous for shortening the construction period and reducing costs.
Further, since the welding work can be reduced, the work scaffolding, curing and the like associated therewith can be made light, the fear of damaging existing members can be eliminated, and the problem of welding defects can also be solved.

以下、本発明の実施の形態を図面にしたがって説明する。
なお、以下の実施の形態では、トラス梁に本発明を適用した場合について説明するが、本発明は、トラス構造、ブレース構造、ラーメン構造などの各種の柱や梁、ブレースなどの鋼構造の鋼部材に広く適用可能である。
まず、本発明が適用される鋼構造トラス部材であるトラス梁から説明する。
図１はトラス梁の正面図、図２は鋼部材の断面図を示す。
図１に示すように、鋼構造（鉄骨構造）は、柱２と、柱２から突設されたトラス梁４などを含んで構成されている。
トラス梁４は、上弦材６と、下弦材８と、それらを連結する複数の束材９、斜材１０とを含んで構成されている。
上弦材６と下弦材８の長手方向に等間隔をおいた複数箇所で互いに対向する箇所に、高力ボルトやナットを介して、あるいはリベットを介してガセットプレー１１０２、１１０４が取着され、束材９および斜材１０は上弦材６のガセットプレート１１０２と下弦材８のガセットプレート１１０４を連結するように設けられている。
また、柱２、上弦材６、斜材１０とはガセットプレート１１０６を介して連結され、柱２、下弦材８とはガセットプレート１１０８を介して連結されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following embodiment, a case where the present invention is applied to a truss beam will be described. However, the present invention is a steel of various columns and beams such as a truss structure, a brace structure, and a ramen structure, and a steel structure such as a brace. Widely applicable to members.
First, a truss beam which is a steel structure truss member to which the present invention is applied will be described.
FIG. 1 is a front view of a truss beam, and FIG. 2 is a cross-sectional view of a steel member.
As shown in FIG. 1, the steel structure (steel structure) includes a column 2, a truss beam 4 protruding from the column 2, and the like.
The truss beam 4 includes an upper chord member 6, a lower chord member 8, and a plurality of bundle members 9 and diagonal members 10 that connect them.
Gusset plates 1102 and 1104 are attached to a plurality of locations at equal intervals in the longitudinal direction of the upper chord material 6 and the lower chord material 8 via high-strength bolts and nuts or via rivets. The material 9 and the diagonal material 10 are provided so as to connect the gusset plate 1102 of the upper chord material 6 and the gusset plate 1104 of the lower chord material 8.
The column 2, the upper chord member 6, and the diagonal member 10 are connected via a gusset plate 1106, and the column 2 and the lower chord member 8 are connected via a gusset plate 1108.

鋼部材である上弦材６と下弦材８と束材９と斜材１０は、図２に示すように、２つの山形鋼１２の一方のフランジ１２０２を対向させ、他方のフランジ１２０４を互いに反対方向に突出するように配置されて構成されている。
本実施の形態の補強構造は、このように山形鋼１２を用いて構成された上弦材６や下弦材８、束材９、斜材１０などの鋼部材を補強しており、必要に応じて上弦材６のみが補強され、あるいは、下弦材８のみが補強され、あるいは束材９のみが補強され、あるいは斜材１０のみが補強され、あるいは、適宜それらの組み合わせが補強されるものであり、以下の実施の形態では、下弦材８と斜材１０とを補強する場合を例にとって説明する。 As shown in FIG. 2, the upper chord member 6, the lower chord member 8, the bundle member 9, and the diagonal member 10, which are steel members, face one flange 1202 of the two angle steels 12, and the other flange 1204 in opposite directions. It is arranged so as to protrude.
The reinforcing structure of the present embodiment reinforces steel members such as the upper chord member 6, the lower chord member 8, the bundle member 9, and the diagonal member 10 that are configured using the angle steel 12 as described above. Only the upper chord material 6 is reinforced, or only the lower chord material 8 is reinforced, or only the bundle material 9 is reinforced, or only the diagonal material 10 is reinforced, or a combination thereof is appropriately reinforced, In the following embodiment, a case where the lower chord member 8 and the diagonal member 10 are reinforced will be described as an example.

（第１の実施の形態）
図３は第１の実施の形態の鋼構造の補強構造の断面図、図４は第１の実施の形態の鋼構造の補強構造の平面図、図５は被挟持板および第１金物の説明図、図６は第２金物の説明図を示す。
補強構造２０Ａは、２つの補強鋼板２２と、複数の被挟持板２４と、複数の締め付け具２６などを含んで構成されている。 (First embodiment)
FIG. 3 is a cross-sectional view of the steel structure reinforcement structure of the first embodiment, FIG. 4 is a plan view of the steel structure reinforcement structure of the first embodiment, and FIG. 5 is a diagram of the sandwiched plate and the first hardware. FIG. 6 and FIG. 6 are explanatory views of the second hardware.
The reinforcing structure 20A includes two reinforcing steel plates 22, a plurality of sandwiched plates 24, a plurality of fastening tools 26, and the like.

２つの補強鋼板２２は、厚さよりも大きな寸法の幅を有し、さらに、この幅よりも大きな寸法の長さを有する細長の板形状を呈している。
２つの補強鋼板２２は、断面が三角形枠状を呈するように、それらの幅方向の両端を各山形鋼１２のフランジ１２０２、１２０４の先端寄り部分に当接してそれら山形鋼１２に沿って延在するように配設されている。 The two reinforcing steel plates 22 have a width having a dimension larger than the thickness, and further have an elongated plate shape having a length larger than the width.
The two reinforcing steel plates 22 extend along the angle steels 12 with their widthwise ends abutting against the end portions of the flanges 1202 and 1204 of the angle steels 12 so that the cross section has a triangular frame shape. It is arranged to do.

複数の被挟持板２４は、各山形鋼１２の長手方向に間隔をおいた複数箇所において、それぞれ２つの山形鋼１２の対向するフランジ１２０２間に挿入されて配設されている。   The plurality of sandwiched plates 24 are respectively inserted and disposed between the opposing flanges 1202 of the two angle steels 12 at a plurality of positions spaced in the longitudinal direction of each angle steel 12.

複数の締め付け具２６は、被挟持板２４が配置された各箇所において２つの山形鋼１２の長手方向と直交する方向においてそれら２つの山形鋼１２の周囲を囲み２つの補強鋼板２２の幅方向の両端を対応する山形鋼１２の各フランジ１２０２、１２０４に押圧すると共に２つの山形鋼１２の対向するフランジ１２０２で被挟持板２４を締め付ける方向に２つの山形鋼１２を押圧している。   The plurality of fasteners 26 surround each of the two angle steels 12 in the direction perpendicular to the longitudinal direction of the two angle steels 12 at each position where the sandwiched plates 24 are arranged, and are arranged in the width direction of the two reinforcing steel plates 22. The two angle steels 12 are pressed in the direction in which the clamped plate 24 is tightened by the flanges 1202 opposite to each other while pressing both ends against the corresponding flanges 1202 and 1204 of the angle steel 12.

本実施の形態では、締め付け具２６は、１つの第１金物３０と２つの第２金物３２とを含んで構成されている。
第１金物３０は、図５に示すように、平鋼で形成され、２つの山形鋼１２の互いに反対方向に突出するフランジ１２０４に当接可能で互いに反対方向に突出するフランジ１２０４の各先端間を結ぶ長さよりも大きな寸法の長さを有する当接板部３００２を有している。
当接板３００２に長さ方向の両端に、ボルト挿通孔３０１０が形成されている。
被挟持板２４は、当接板部３００２の長さ方向の中央に該当接板部３００２の長さ方向と直交する方向に突出するように溶着され、被挟持板２４を互いに対向するフランジ１２０２の間に挿入し、当接板部３００２を互いに反対方向に突出するフランジ１２０４に当接した状態で、被挟持板２４の先端は、互いに対向するフランジ１２０２の先端よりも突出する高さで形成されている。 In the present embodiment, the fastening tool 26 includes one first hardware 30 and two second hardware 32.
As shown in FIG. 5, the first hardware 30 is formed of flat steel, can contact the flanges 1204 protruding in opposite directions of the two angle steels 12, and between the tips of the flanges 1204 protruding in opposite directions. The abutting plate portion 3002 has a length that is larger than the length connecting the two.
Bolt insertion holes 3010 are formed at both ends of the contact plate 3002 in the length direction.
The sandwiched plate 24 is welded to the center of the contact plate portion 3002 in the length direction so as to protrude in a direction orthogonal to the length direction of the contact plate portion 3002, and the sandwiched plate 24 is opposed to the flanges 1202 facing each other. With the abutting plate portion 3002 in contact with flanges 1204 protruding in opposite directions, the tip of the sandwiched plate 24 is formed with a height that protrudes higher than the tips of the flanges 1202 facing each other. ing.

第２金物３２は、図６に示すように、平鋼が曲げ加工されることで形成されている。
第２金物３２は、補強鋼板２２に当接可能な対向板部３２０２と、対向板部３２０２の一方の端部に屈曲部を介して連結され被挟持板２４がフランジ１２０２の先端から突出する先端に重ね合わされる第１の合わせ部３２０４と、対向板部３２０２のうちの他方の端部に屈曲部を介して連結され第１金物３０の当接板部３００２の端部に重ね合わされる第２の合わせ部３２０６とを有している。
本実施の形態では、補強鋼板２２に臨む対向板部３２０２の面にスペーサ３２０８が溶接により取着されており、このスペーサ３２０８が補強鋼板２２に当接して配置されることになる。
第１の合わせ部３２０４と第２の合わせ部３２０６には、それぞれボルト挿通孔３２１０が形成されている。 As shown in FIG. 6, the second hardware 32 is formed by bending flat steel.
The second hardware 32 is connected to the opposing plate portion 3202 that can contact the reinforcing steel plate 22 and one end portion of the opposing plate portion 3202 via a bent portion, and the front end from which the sandwiched plate 24 protrudes from the front end of the flange 1202. A first mating portion 3204 that is superimposed on the second plate and a second end portion that is connected to the other end portion of the opposing plate portion 3202 via a bent portion and that is superimposed on the end portion of the contact plate portion 3002 of the first hardware 30. And a mating portion 3206.
In the present embodiment, a spacer 3208 is attached by welding to the surface of the opposing plate portion 3202 facing the reinforcing steel plate 22, and the spacer 3208 is disposed in contact with the reinforcing steel plate 22.
Bolt insertion holes 3210 are formed in the first mating portion 3204 and the second mating portion 3206, respectively.

本実施の形態によれば、下弦材８と斜材１０を構成する各山形鋼１２のフランジ１２０２、１２０４に当接して２つの補強鋼板２２が、下弦材８と斜材１０の長手方向の全長にわたってそれぞれ設けられ、長さ方向に間隔をおいた複数箇所で、被挟持板２４、第１金物３０、第２金物３２により、山形鋼１２の長手方向と直交する方向においてそれら２つの山形鋼１２の周囲を囲み２つの補強鋼板２２の幅方向の両端を対応する山形鋼１２の各フランジ１２０２、１２０４に押圧すると共に２つの山形鋼１２の対向するフランジ１２０２で被挟持板２４を締め付ける方向に２つの山形鋼１２を押圧する。
より詳細には、被挟持板２４が２つの山形鋼１２の対向するフランジ１２０２の間に挿入され、第１金物３０の当接板部３００２が、２つの山形鋼１２の互いに反対方向に突出するフランジ１２０４に当接されると共に、２つの第２金物３２の対向板部３２０２がスペーサ３２０８を介して補強鋼板２２に当接して配置される。
そして、２つの第２金物の第１の合わせ部３２０４と被挟持板２４の先端とがボルトＢ、ナットＮにより締結されると共に、第１金物３０の当接板部３００２の長さ方向の両端と２つの第２金物３２の第２の合わせ部３２０６とがボルト、ナットにより締結され、このようにボルトＢ、ナットＮで締結した状態で、補強鋼板２２の幅方向の両端が対応する山形鋼１２の各フランジ１２０２、１２０４に押圧されると共に、被挟持板２４が２つの山形鋼１２の対向するフランジ１２０２で締め付けられる。 According to the present embodiment, the two reinforcing steel plates 22 are in contact with the flanges 1202 and 1204 of the angle irons 12 constituting the lower chord member 8 and the diagonal member 10, so that the total length of the lower chord member 8 and the diagonal member 10 in the longitudinal direction is The two angle steels 12 are provided in a direction perpendicular to the longitudinal direction of the angle steel 12 by the sandwiched plate 24, the first hardware 30 and the second hardware 32 at a plurality of positions spaced apart in the length direction. 2 in the direction in which the opposite ends of the two reinforcing steel plates 22 in the width direction are pressed against the corresponding flanges 1202 and 1204 of the angle irons 12 and the sandwiched plate 24 is tightened by the opposing flanges 1202 of the two angle steels 12. Two angle steels 12 are pressed.
More specifically, the sandwiched plate 24 is inserted between the opposing flanges 1202 of the two angle steels 12, and the contact plate part 3002 of the first hardware 30 protrudes in the opposite directions of the two angle steels 12. While being in contact with the flange 1204, the opposing plate portions 3202 of the two second hardware 32 are arranged in contact with the reinforcing steel plate 22 via the spacer 3208.
The first fitting portion 3204 of the two second hardware and the tip of the sandwiched plate 24 are fastened by bolts B and nuts N, and both lengthwise ends of the contact plate 3002 of the first hardware 30 And the second mating part 3206 of the two second hardware 32 are fastened by bolts and nuts, and in this state fastened by the bolts B and N, the both ends of the reinforcing steel plate 22 in the width direction correspond to each other. While being pressed by the twelve flanges 1202 and 1204, the sandwiched plate 24 is fastened by the opposing flanges 1202 of the two angle steels 12.

なお、下弦材８や斜材１０のガセットプレート１１０２、１１０４、１１０６、１１０８寄りの箇所では、図７に示すように、補強鋼板２２は溶接により山形鋼１２のフランジ１２０２、１２０４に取着される。すなわち、２つの補強鋼材２２を配設するにあたり、ガセットプレート１１０２、１１０４、１１０６、１１０８寄りの箇所では、被挟持板２４と締め付け具２６とを用いていない。   In addition, in the portion near the gusset plates 1102, 1104, 1106, 1108 of the lower chord member 8 and the diagonal member 10, the reinforcing steel plate 22 is attached to the flanges 1202, 1204 of the angle steel 12 by welding as shown in FIG. . In other words, when the two reinforcing steel materials 22 are disposed, the sandwiched plate 24 and the fastening tool 26 are not used at the locations near the gusset plates 1102, 1104, 1106, 1108.

本実施の形態によれば、補強鋼板２２の幅方向の両端が対応する山形鋼１２の両フランジ１２０２、１２０４に押圧されると共に、被挟持板２４が２つの山形鋼１２の対向するフランジ１２０２、１２０２で締め付けられ、２つの補強鋼板２２が下弦材８や斜材１０に一体化される。
このように２つの補強鋼板２２が下弦材８や斜材１０に一体化されることにより、断面増加により下弦材８や斜材１０の圧縮、せん断強度を増大させることができる。
また、開断面であった下弦材８や斜材１０を、フランジ１２０２、１２０４、補強鋼板２２により断面三角形枠状の閉断面にできるので、下弦材８や斜材１０の座屈強度を増大させることができる。 According to the present embodiment, both ends of the reinforcing steel plate 22 in the width direction are pressed by the corresponding flanges 1202 and 1204 of the angle steel 12, and the sandwiched plate 24 is a flange 1202 facing the two angle steels 12. Tightened at 1202, the two reinforcing steel plates 22 are integrated with the lower chord member 8 and the diagonal member 10.
Thus, by integrating the two reinforcing steel plates 22 into the lower chord member 8 and the diagonal member 10, the compression and shear strength of the lower chord member 8 and the oblique member 10 can be increased by increasing the cross section.
Further, since the lower chord member 8 and the diagonal member 10 having the open cross section can be formed into a closed cross section having a triangular frame shape by the flanges 1202 and 1204 and the reinforcing steel plate 22, the buckling strength of the lower chord member 8 and the oblique member 10 is increased. be able to.

第１の実施の形態の補強構造２０Ａによれば、ボルトＢ、ナットＮの締結作業により２つの補強鋼板２２で下弦材８や斜材１０を補強でき、溶接作業を大幅に削減できるので、既存建物内に飛散する火気の量を抑制できる。
また、有資格者による作業を大幅に削減できるため、特に倉庫や展示場などの大規模な構造物でトラス梁の長さが大きく、また、本数も多い場合であっても、人員配置を迅速に行なえ、工期の短縮化、コストの低減化を図る上で有利となる。
また、溶接作業を大幅に削減できるため、それに伴う作業足場、養生等を軽微にすることができ、また、既存の部材を傷めるという恐れも解消でき、溶接欠陥についての問題も解消できる。
なお、上述の効果は、上弦材６や束材９を補強した場合にも同様に奏される。 According to the reinforcing structure 20A of the first embodiment, the lower chord member 8 and the diagonal member 10 can be reinforced by the two reinforcing steel plates 22 by the fastening operation of the bolt B and the nut N, and the welding operation can be greatly reduced. The amount of fire scattered in the building can be reduced.
In addition, the work by qualified personnel can be greatly reduced, so even if the length of the truss beam is large and the number of truss beams is large, especially in large structures such as warehouses and exhibition halls, staffing is quick. This is advantageous for shortening the construction period and reducing the cost.
In addition, since the welding work can be greatly reduced, the work scaffolding, curing and the like associated therewith can be made light, the fear of damaging existing members can be eliminated, and the problem of welding defects can also be solved.
In addition, the above-mentioned effect is produced similarly when the upper chord material 6 and the bundle material 9 are reinforced.

（第２の実施の形態）
図８は第２の実施の形態の鋼構造の補強構造の断面図を示す。
第２の実施の形態の補強構造２０Ｂは、帯板４０を用いて締め付け具２６が構成されている点において第１の実施の形態と異なっている。
すなわち締め付け具２６は、１枚の帯板４０と、２つのスペーサ４２を含んで構成されている。
各スペーサ４２は、それぞれ補強鋼板２２に当接するように配置されている。
帯板４０（ベルト）は、２つの山形鋼１２の長手方向と直交する方向において２つの山形鋼１２、２つの補強鋼板２２、２つのスペーサ４２、被挟持板２４の周囲を囲みそれらを締め付けた状態で締結されている。 (Second Embodiment)
FIG. 8 shows a cross-sectional view of the steel structure reinforcing structure of the second embodiment.
The reinforcing structure 20B of the second embodiment is different from the first embodiment in that the fastening tool 26 is configured using the band plate 40.
That is, the fastening tool 26 is configured to include one strip plate 40 and two spacers 42.
Each spacer 42 is disposed so as to contact the reinforcing steel plate 22.
The band plate 40 (belt) surrounds the periphery of the two angle steels 12, the two reinforcing steel plates 22, the two spacers 42, and the sandwiched plate 24 in a direction orthogonal to the longitudinal direction of the two angle steels 12 and tightens them. It is concluded in a state.

このような帯板４０として薄肉の鋼板や、強化繊維を用いた合成樹脂製のベルトなど、従来公知の様々な材料が使用可能である。
また、帯板４０の締結は、帯板４０が鋼板の場合には、例えば圧着器が用いられ、帯板４０が合成樹脂製である場合には、溶着や接着などが採用される。
なお、帯板４０が鋼板の場合、鋼製のスペーサ４２を用い、スペーサ４２を帯板４０の内面に予め溶着などにより取り付けておいてもよく、また、帯板４０が合成樹脂製の場合、合成樹脂製のスペーサ４２を用い、スペーサ４２を帯板４０の内面に予め溶着や接着などにより取り付けておいてもよい。
そして、帯板４０が締結された状態で、補強鋼板２２の幅方向の両端が対応する山形鋼１２の両フランジ１２０２、１２０４に押圧されると共に、被挟持板２４が２つの山形鋼１２の対向するフランジ１２０２、１２０２で締め付けられ、２つの補強鋼板２２が下弦材８や斜材１０に一体化され、第１の実施の形態と同様な効果が奏される。 As such a band plate 40, various conventionally known materials such as a thin steel plate and a synthetic resin belt using reinforcing fibers can be used.
In addition, when the band plate 40 is a steel plate, for example, a crimping device is used for fastening the band plate 40, and when the band plate 40 is made of a synthetic resin, welding or adhesion is employed.
When the strip 40 is a steel plate, a steel spacer 42 may be used, and the spacer 42 may be attached to the inner surface of the strip 40 in advance by welding or the like, and when the strip 40 is made of synthetic resin, A spacer 42 made of synthetic resin may be used, and the spacer 42 may be attached to the inner surface of the band plate 40 in advance by welding or adhesion.
In the state where the band plate 40 is fastened, both ends in the width direction of the reinforcing steel plate 22 are pressed against the corresponding flanges 1202 and 1204 of the angle steel 12, and the sandwiched plate 24 is opposed to the two angle steels 12. The two reinforcing steel plates 22 are integrated with the lower chord member 8 and the diagonal member 10 by being tightened by the flanges 1202 and 1202, and the same effects as those of the first embodiment are obtained.

トラス梁の正面図である。It is a front view of a truss beam. 鋼部材の断面図である。It is sectional drawing of a steel member. 第１の実施の形態の鋼構造の補強構造の断面図である。It is sectional drawing of the reinforcement structure of the steel structure of 1st Embodiment. 第１の実施の形態の鋼構造の補強構造の平面図である。It is a top view of the reinforcement structure of the steel structure of 1st Embodiment. 被挟持板および第１金物の説明図である。It is explanatory drawing of a to-be-clamped board and a 1st hardware. 第２金物の説明図である。It is explanatory drawing of a 2nd metal fitting. ガセットプレート寄りの箇所における補強鋼板の配設の説明図である。It is explanatory drawing of arrangement | positioning of the reinforcing steel plate in the location near a gusset plate. 第２の実施の形態の鋼構造の補強構造の断面図である。It is sectional drawing of the reinforcement structure of the steel structure of 2nd Embodiment.

符号の説明Explanation of symbols

４……トラス梁、６……上弦材、８……下弦材、９……束材、１０……斜材、１２……山形鋼、２２……補強鋼材、２４……被挟持板、２６……締め付け具、３０……第１金物、３２……第２金物、４０……帯板、４２……スペーサ。   4 ... truss beam, 6 ... upper chord material, 8 ... lower chord material, 9 ... bundle material, 10 ... diagonal material, 12 ... angle steel, 22 ... reinforcing steel material, 24 ... sandwiched plate, 26 ...... Fastener, 30 ...... 1st hardware, 32 ...... 2nd hardware, 40 ... strip, 42 ... spacer.

Claims (4)

２つの山形鋼の一方のフランジを対向させ他方のフランジを互いに反対方向に突出するように配置されて構成された鋼部材を含む鋼構造の補強構造であって、
幅方向の両端を各山形鋼のフランジに当接してそれら山形鋼に沿って延在する２つの補強鋼板と、
前記各山形鋼の長手方向に間隔をおいた複数箇所においてそれぞれ２つの山形鋼の対向するフランジ間に挿入される複数の被挟持板と、
前記被挟持板が配置された各箇所において前記２つの山形鋼の長手方向と直交する方向においてそれら２つの山形鋼の周囲を囲み前記２つの補強鋼板の幅方向の両端を対応する山形鋼の各フランジに押圧すると共に２つの山形鋼の対向するフランジで前記被挟持板を締め付ける方向に２つの山形鋼を押圧する複数の締め付け具と、
を備えることを特徴とする鋼構造の補強構造。 A steel structure reinforcing structure including a steel member arranged so that one flange of two angle steels faces each other and the other flange protrudes in the opposite direction,
Two reinforcing steel plates extending along the angle irons with both ends in the width direction being in contact with the flanges of the angle irons;
A plurality of sandwiched plates inserted between two opposing angle iron flanges at a plurality of intervals spaced in the longitudinal direction of each angle iron;
Each of the angle steels corresponding to both ends in the width direction of the two reinforcing steel plates surrounding the two angle steels in the direction perpendicular to the longitudinal direction of the two angle steels at each position where the sandwiched plates are arranged. A plurality of fasteners for pressing the two angle steels in a direction to press the flanges and tighten the sandwiched plate with the opposing flanges of the two angle steels;
A steel structure reinforcement structure comprising: 前記締め付け具は、１つの第１金物と、２つの第２金物とを含んで構成され、
前記第１金物は、前記２つの山形鋼の互いに反対方向に突出するフランジに当接可能で互いに反対方向に突出するフランジの各先端間を結ぶ長さよりも大きな寸法の長さを有する当接板部を有し、
前記被挟持板は、前記当接板部の長さ方向の中央に該当接板部の長さ方向と直交する方向に突出するように溶着され、前記被挟持板を互いに対向するフランジの間に挿入し、前記当接板部を互いに反対方向に突出するフランジに当接した状態で、前記被挟持板の先端は、互いに対向するフランジの先端よりも突出する高さで形成され、
前記第２金物は、前記補強鋼板に当接可能な対向板部と、前記対向板部の一方の端部に屈曲部を介して連結され前記被挟持板が前記フランジの先端から突出する先端に重ね合わされる第１の合わせ部と、前記対向板部の他方の端部に屈曲部を介して連結され前記当接板の長手方向の端部に重ね合わされる第２の合わせ部とを有し、
前記被挟持板が前記２つの山形鋼の対向するフランジの間に挿入され、前記第１金物の前記当接板部が、前記２つの山形鋼の互いに反対方向に突出するフランジに当接されると共に、２つの第２金物の前記対向板部が前記補強鋼板に当接して配置され、
前記２つの第２金物の第１の合わせ部と前記被挟持板の先端とがボルト、ナットにより締結されると共に前記第１金物の当接板部の長さ方向の両端と前記２つの第２金物の第２の合わせ部とがボルト、ナットにより締結され、
前記ボルト、ナットで締結した状態で、前記２つの補強鋼板の幅方向の両端が対応する山形鋼の各フランジに押圧されると共に、前記被挟持板が２つの山形鋼の対向するフランジで締め付けられる、
ことを特徴とする請求項１記載の鋼構造の補強構造。 The fastening tool is configured to include one first hardware and two second hardware,
The first metal piece is capable of contacting the flanges of the two angle steels protruding in opposite directions, and has a length larger than the length connecting the tips of the flanges protruding in opposite directions. Part
The sandwiched plate is welded to the center of the contact plate portion in the length direction so as to protrude in a direction perpendicular to the length direction of the contact plate portion, and the sandwiched plate is interposed between the flanges facing each other. Inserted, in a state where the abutting plate portion is in contact with flanges projecting in opposite directions, the tip of the sandwiched plate is formed at a height projecting from the tips of the flanges facing each other,
The second hardware is connected to a counter plate portion that can contact the reinforcing steel plate, and one end of the counter plate portion via a bent portion, and the sandwiched plate protrudes from a tip of the flange. A first mating portion to be superimposed, and a second mating portion to be coupled to the other end portion of the counter plate portion via a bent portion and to be superimposed on an end portion in the longitudinal direction of the contact plate. ,
The sandwiched plate is inserted between the opposing flanges of the two angle steels, and the abutment plate portion of the first hardware is in contact with flanges protruding in opposite directions of the two angle steels. In addition, the opposing plate portions of the two second hardware are arranged in contact with the reinforcing steel plate,
The first mating portion of the two second hardware and the tip of the sandwiched plate are fastened by bolts and nuts, and both the lengthwise ends of the contact plate of the first hardware and the two second The second mating part of the hardware is fastened with bolts and nuts,
While being fastened with the bolts and nuts, both ends in the width direction of the two reinforcing steel plates are pressed by the corresponding flanges of the angle steel, and the sandwiched plate is tightened by the opposing flanges of the two angle steels ,
The steel structure reinforcing structure according to claim 1. 前記締め付け具は、帯板と、２つのスペーサを含んで構成され、
前記２つのスペーサは、１つずつ各補強鋼板に当接するように配置され、
前記帯板は、前記２つの山形鋼の長手方向と直交する方向において前記２つの山形鋼、前記２つの補強鋼板、前記２つのスペーサの周囲を囲みそれらを締め付けた状態で締結され、
前記帯板が締結された状態で、前記２つの補強鋼板の幅方向の両端が対応する山形鋼の両フランジに押圧されると共に前記被挟持板が２つの山形鋼の対向するフランジで締め付けられる、
ことを特徴とする請求項１記載の鋼構造の補強構造。 The fastening tool includes a strip and two spacers,
The two spacers are arranged so as to contact each reinforcing steel plate one by one,
The band plate is fastened in a state of surrounding the two angle steels, the two reinforcing steel plates, and the two spacers in a direction orthogonal to the longitudinal direction of the two angle steels and tightening them.
In the state where the band plate is fastened, both ends in the width direction of the two reinforcing steel plates are pressed by the corresponding flanges of the angle steel and the sandwiched plate is fastened by the opposing flanges of the two angle steels.
The steel structure reinforcing structure according to claim 1. 前記各補強鋼材の長手方向の両端は、対応する各山形鋼の長手方向の両端に取着されていることを特徴とする請求項１記載の鋼構造の補強構造。   2. The reinforcing structure for steel structure according to claim 1, wherein both ends in the longitudinal direction of each reinforcing steel material are attached to both ends in the longitudinal direction of each corresponding angle steel.
JP2008062568A 2008-03-12 2008-03-12 Steel structure reinforcement structure Active JP5283404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008062568A JP5283404B2 (en) 2008-03-12 2008-03-12 Steel structure reinforcement structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008062568A JP5283404B2 (en) 2008-03-12 2008-03-12 Steel structure reinforcement structure

Publications (2)

Publication Number Publication Date
JP2009215824A true JP2009215824A (en) 2009-09-24
JP5283404B2 JP5283404B2 (en) 2013-09-04

Family

ID=41187947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008062568A Active JP5283404B2 (en) 2008-03-12 2008-03-12 Steel structure reinforcement structure

Country Status (1)

Country Link
JP (1) JP5283404B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105041001A (en) * 2015-08-14 2015-11-11 北京清华同衡规划设计研究院有限公司 Steel member reinforcing structure
JP2016020592A (en) * 2014-07-15 2016-02-04 株式会社アイ・ティ・シ・コンサルティング Reinforcement device for existing steel frame structure
KR101611180B1 (en) * 2014-12-29 2016-04-11 두산중공업 주식회사 Reinforced structure of the truss
CN107035160A (en) * 2017-06-16 2017-08-11 湖北武大珞珈工程结构检测咨询有限公司 A kind of assembled reinforcing device and method of flexural deformation steel member
CN107299682A (en) * 2017-07-11 2017-10-27 中国建筑第六工程局有限公司 A kind of clipping aluminium sheet component and its installation method for steel construction surface layer
JP2018071148A (en) * 2016-10-27 2018-05-10 株式会社竹中工務店 Junction structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007262716A (en) * 2006-03-28 2007-10-11 Takenaka Komuten Co Ltd T-shaped sectional member for truss or buckling stiffening structure of cross-shaped sectional member
JP2007315056A (en) * 2006-05-26 2007-12-06 Fujita Corp Reinforcing structure of steel structure
JP2007332549A (en) * 2006-06-12 2007-12-27 Chubu Electric Power Co Inc Reinforcement method for steel structural member
JP2008291620A (en) * 2007-05-24 2008-12-04 Keigo Ishii Reinforcing metallic material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007262716A (en) * 2006-03-28 2007-10-11 Takenaka Komuten Co Ltd T-shaped sectional member for truss or buckling stiffening structure of cross-shaped sectional member
JP2007315056A (en) * 2006-05-26 2007-12-06 Fujita Corp Reinforcing structure of steel structure
JP2007332549A (en) * 2006-06-12 2007-12-27 Chubu Electric Power Co Inc Reinforcement method for steel structural member
JP2008291620A (en) * 2007-05-24 2008-12-04 Keigo Ishii Reinforcing metallic material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016020592A (en) * 2014-07-15 2016-02-04 株式会社アイ・ティ・シ・コンサルティング Reinforcement device for existing steel frame structure
KR101611180B1 (en) * 2014-12-29 2016-04-11 두산중공업 주식회사 Reinforced structure of the truss
CN105041001A (en) * 2015-08-14 2015-11-11 北京清华同衡规划设计研究院有限公司 Steel member reinforcing structure
CN105041001B (en) * 2015-08-14 2017-10-31 北京清华同衡规划设计研究院有限公司 Steel member ruggedized construction
JP2018071148A (en) * 2016-10-27 2018-05-10 株式会社竹中工務店 Junction structure
CN107035160A (en) * 2017-06-16 2017-08-11 湖北武大珞珈工程结构检测咨询有限公司 A kind of assembled reinforcing device and method of flexural deformation steel member
CN107035160B (en) * 2017-06-16 2022-06-14 湖北武大珞珈工程结构检测咨询有限公司 Fabricated reinforcing device and method for bending deformation steel member
CN107299682A (en) * 2017-07-11 2017-10-27 中国建筑第六工程局有限公司 A kind of clipping aluminium sheet component and its installation method for steel construction surface layer
CN107299682B (en) * 2017-07-11 2023-07-28 中国建筑第六工程局有限公司 Clamping type aluminum plate assembly for steel structure surface layer and mounting method of clamping type aluminum plate assembly

Also Published As

Publication number Publication date
JP5283404B2 (en) 2013-09-04

Similar Documents

Publication Publication Date Title
JP5283404B2 (en) Steel structure reinforcement structure
JP5893932B2 (en) Stiffening structure and method for steel member
KR20120104205A (en) Structural reinforcement
JP5530151B2 (en) Seismic walls, buildings, and methods for constructing seismic walls
JP5169995B2 (en) Reinforcement structure and reinforcement method for H-shaped steel bolt joint joint
JP4771861B2 (en) Steel structure reinforcement structure
KR20000058544A (en) A steel beam coupling device which uses the wedge and method thereof
JP4919406B2 (en) Steel structure reinforcement structure
JP4925754B2 (en) Steel structure reinforcement method
JP2006257853A (en) Compound beam made of steel sheet and lumber
JP2008121240A (en) Reinforcing structure for existing steel structural member
JP5241425B2 (en) Wooden frame joint structure and joint hardware
KR20160000817U (en) Spacer combination structure of non-welding deck plate
KR200426053Y1 (en) The connection architecture of supports in sheeting apparatus
JP4584088B2 (en) Reinforcing method and structure of existing steel member of steel structure
JP2980098B2 (en) Shear specimen and method for producing shear specimen
KR20140098527A (en) Connecting structure and method between h-shaped steel column and beam
JP6150361B1 (en) Reinforcing method and reinforcing tool
JP7329110B1 (en) End structure of steel frame brace and its construction method
KR101679327B1 (en) Temporary Fixing Jig Assembly for Reinforcement Angle
JP5140754B2 (en) Steel structure reinforcement method
JP3161023U (en) Steel column and steel beam joint structure
JP7240286B2 (en) FRP structural member with connecting member
JP2018091099A (en) Reinforcing metal fitting for concrete bridge pier, reinforcing tool for concrete bridge pier and construction method for reinforcing concrete bridge pier
JP7162457B2 (en) Joining structure of retrofitted brace

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110207

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120724

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120731

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120927

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: 20130528

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20130528

R150 Certificate of patent or registration of utility model

Ref document number: 5283404

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

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

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250