JP2006051522A - Structure of welded joint of h-section steel - Google Patents

Structure of welded joint of h-section steel Download PDF

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JP2006051522A
JP2006051522A JP2004234876A JP2004234876A JP2006051522A JP 2006051522 A JP2006051522 A JP 2006051522A JP 2004234876 A JP2004234876 A JP 2004234876A JP 2004234876 A JP2004234876 A JP 2004234876A JP 2006051522 A JP2006051522 A JP 2006051522A
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shaped steel
joint structure
welded joint
shaped
reinforcing material
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Toshio Watanuki
敏男 綿貫
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OKUDO KINZOKU KK
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OKUDO KINZOKU KK
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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the strengths of H-section steel joined by a conventional welded joint of the H-section steel are lower than those of the original H-section steel itself. <P>SOLUTION: Reinforcing steel members 2a, 2b, 2c, 2d are stridingly brought into contact with any one or both of the inside and the outside of the butting portions 5 of the flange portion 3 and the web portion 4 of two H-section steel 1a, 1b butted at their end portions, so as to extend into both of the H-section steel. A part or all of the butting portions of the H-section steel are welded, and one or both of the outside peripheral edges of the reinforcing members and the flange portion and the web portion brought into contact with the reinforcing members are welded. The reinforcing members are brought into contact with the full length or a partial length of the butting portions of the H-section steel. The reinforcing members can be brought into contact with both of the flange portion and the web portion of the butting portion of the H-section steel. The reinforcing members to be brought into contact with the H-section steel may be used in common as backing materials for welding the butting portions. The strengths of one line of H-section steel formed by connecting the H-section steel is controlled so as to be equal to or larger than that of the original H-section steel itself. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、構造物等に用いるＨ型鋼を突き合わせて連結するＨ型鋼溶接継手構造に関するものである。   The present invention relates to an H-shaped steel welded joint structure in which H-shaped steels used for structures and the like are butted and connected.

Ｈ型鋼は構造物を作る際に適度な長さに切断して使用され、使用済みのＨ型鋼は使用によって曲がった部分や傷ついて使用できなくなった部分をカットして使用される。カットされたＨ型鋼は再使用の度に次第に短くなっていく。そこで、従来は、図３５（ａ）（ｂ）に示すように、切断されて短くなった２本のＨ型鋼Ａ、Ｂの端部同士を突き合わせてその突合せ部分Ｃを溶接し、補強板Ｄをウェブ部Ｅの両側面の突合せ部分Ｃの外側に宛がい、補強板Ｄの外周縁ｄを溶接して、２本のＨ型鋼Ａ、Ｂを連結して１本のＨ型鋼にして使用している。図３５（ａ）（ｂ）中のｃ、ｅが溶接部分である。   The H-shaped steel is used by cutting to an appropriate length when making a structure, and the used H-shaped steel is used by cutting a bent portion or a portion that cannot be used due to damage. The cut H-shaped steel gradually becomes shorter with each reuse. Therefore, conventionally, as shown in FIGS. 35 (a) and 35 (b), the ends of the two H-shaped steels A and B that have been cut and shortened are butted against each other, and the butted portions C are welded together. Is attached to the outside of the butt portion C on both sides of the web portion E, the outer peripheral edge d of the reinforcing plate D is welded, and the two H-shaped steels A and B are connected to form one H-shaped steel. ing. C and e in FIGS. 35 (a) and 35 (b) are welded portions.

しかし、前記図３５（ａ）（ｂ）に示すＨ型鋼溶接継手構造には次のような課題がある。
（１）図３５（ｂ）に示すように、ウェブ部Ｅとフランジ部ＦとのＲ状連結部Ｇの角が丸く（Ｒ状に）なって肉厚となっているため、その部分の肉厚方向内側まで溶融することが難しく溶接が不足し、２本のＨ型鋼の連結強度が弱くなり、もとのＨ型鋼の強度より劣る。このため連結された１本のＨ型鋼の強度をもとのＨ型鋼と同様に使用した場合、破断する危険がある。ちなみに、前記Ｒ状連結部Ｇは溶接不足部と呼ばれている。
（２）前記の強度不足から、１本に連結されたＨ型鋼は、その用途が制限され、高い強度を求められる箇所への使用には不向きであり、その場合は新品のＨ型鋼を用いることとなり、コスト高となる。 However, the H-shaped steel welded joint structure shown in FIGS. 35 (a) and 35 (b) has the following problems.
(1) As shown in FIG. 35 (b), the corners of the R-shaped connecting portion G between the web portion E and the flange portion F are rounded (in a R shape) and are thick, so that the meat of that portion It is difficult to melt to the inside in the thickness direction, welding is insufficient, the connection strength of the two H-shaped steels is weak, and is inferior to the strength of the original H-shaped steel. For this reason, there is a risk of breakage when the strength of one connected H-shaped steel is used in the same manner as the original H-shaped steel. Incidentally, the R-shaped connecting portion G is called an under-welded portion.
(2) Because of the above-mentioned lack of strength, the H-shaped steel connected to one is limited in its use and unsuitable for use in places where high strength is required. In that case, use a new H-shaped steel. This increases the cost.

本発明は、２本のＨ型鋼を溶接によって連結して１本のＨ型鋼とし、連結されたＨ型鋼の強度が新品のＨ型鋼の強度と同じかそれ以上になるようにしたＨ型鋼溶接継手構造を提供するものである。   The present invention is an H-shaped steel welded joint in which two H-shaped steels are connected by welding to form one H-shaped steel, and the strength of the connected H-shaped steel is equal to or higher than that of a new H-shaped steel. Provide structure.

本件出願のＨ型鋼溶接継手構造は、端部同士を突き合わせた２本のＨ型鋼のフランジ部及びウェブ部の突合せ部分の内側と外側のいずれか一方又は双方に、鋼材による補強材を両Ｈ型鋼に跨がせて宛がい、その突合せ部分同士の一部又は全部を溶接し、補強材の外周縁と補強材を宛がったフランジ部とウェブ部の一方又は双方とを溶接したものである。また、前記補強材は、Ｈ型鋼の突合せ部分の全長又は一部に宛がわれるようにしてある。更に、補強材をＨ型鋼の突合せ部分のフランジ部とウェブ部との双方に宛がうこともできる。また、宛がう補強材を、突合せ部分の溶接用裏当て材と兼用とすることもできる。本件出願のＨ型鋼溶接継手構造は、フランジ部に宛がわれた補強材の曲げ抵抗力ＲＮと、その補強材の外周の溶接部の曲げ抵抗力ＲｗＮとが、夫々Ｈ型鋼材のフランジ部とウェブ部のＲ状連結部（溶接不足部）の曲げ抵抗力Ｎより大きく、且つ、ウェブ部４に宛がわれた補強材自体のせん断抵抗力ＲＳと、その補強材の外周の溶接部のせん断抵抗力ＲｗＳとが、夫々Ｒ状連結部のせん断抵抗力Ｓより大きくなるようにしてある。   The H-shaped steel welded joint structure of the present application has two H-shaped steel reinforcing materials made of steel on either or both of the flange part of the two H-shaped steels whose ends are butted together and the butted part of the web part. , And a part or all of the butted portions are welded, and the outer peripheral edge of the reinforcing material, the flange portion addressed to the reinforcing material, and one or both of the web portions are welded. . Moreover, the said reinforcing material is addressed to the full length or one part of the butt | matching part of H-shaped steel. Further, the reinforcing material can be applied to both the flange portion and the web portion of the butt portion of the H-shaped steel. Further, the addressing reinforcing material can also be used as a welding backing material for the butt portion. In the H-shaped steel welded joint structure of the present application, the bending resistance force RN of the reinforcing material addressed to the flange portion and the bending resistance force RwN of the outer peripheral welding portion of the reinforcing material are the flange portion of the H-shaped steel material, respectively. The shear resistance RS of the reinforcing material itself, which is greater than the bending resistance N of the R-shaped connecting portion (under-welded portion) of the web portion and addressed to the web portion 4, and the shear of the welded portion on the outer periphery of the reinforcing material The resistance force RwS is larger than the shear resistance force S of the R-shaped connecting portion.

本件出願のＨ型鋼溶接継手構造は次のような効果がある。
（１）突き合わせたＨ型鋼のフランジ部とウェブ部の突合せ部分の内側と外側のいずれか一方又は双方に、鋼材による補強材を両Ｈ型鋼に跨がせて宛がって溶接するため、フランジ部に宛がった補強材によって曲げに対しての補強を、ウェブ部に宛がった補強材によってせん断に対しての補強を夫々行うことができ、補強材が所定の溶接長及び溶接面積を確保できれば、連結して形成した１本のＨ型鋼の強度を、新品のＨ型鋼の強度と同じかそれ以上とすることもできる。
（２）補強材を、各フランジ部の内側面と、ウェブ部の一側面の突合せ部分の全長又は一部に宛がった場合は、連結して形成した１本のＨ型鋼の強度を効率良くもとのＨ型鋼の強度以上とすることができ、また、連結後のＨ型鋼の強度のバランスも良くなる。
（３）補強材をＨ型鋼の突合せ部分のフランジ部とウェブ部との双方に宛がうことができるものとした場合、溶接を行う回数を減らすことができ、短時間でＨ型鋼同士の連結を行うことができる。
（４）宛がう補強材を、突合せ部分の溶接用裏当て材と兼用とした場合、そのまま溶接を行っても、別途当て板をする必要がなく、効率よくＨ型鋼同士の連結を行うことができる。
（５）フランジ部に宛がわれた補強材の曲げ抵抗力ＲＮと、その補強材の外周の溶接部の曲げ抵抗力ＲｗＮとを、夫々Ｈ型鋼材のフランジ部とウエブ部のＲ状連結部（溶接不足部）の曲げ抵抗力Ｎより大きく、且つ、ウェブ部４に宛がわれた補強材自体のせん断抵抗力ＲＳと、その補強材の外周の溶接部のせん断抵抗力ＲｗＳとが、夫々Ｒ状連結部のせん断抵抗力Ｓより大きくなるようにすれば、どのようなＨ型鋼、補強材であっても、連結して形成した１本のＨ型鋼の強度を、連結していない新品のＨ型鋼の強度と同じかそれ以上とすることができる。 The H-shaped steel welded joint structure of the present application has the following effects.
(1) The flange portion of the butt H-shaped steel and the butt portion of the web portion are welded to either one or both of the inside and the outside of the butt portion over the H-type steel with a steel reinforcing material straddling the two H-shaped steels. The reinforcement material directed to the part can be reinforced against bending, and the reinforcement material directed to the web part can be reinforced against shearing. The reinforcement material has a predetermined weld length and weld area. Can be ensured, the strength of one H-shaped steel formed by connection can be equal to or higher than the strength of a new H-shaped steel.
(2) When the reinforcing material is applied to the inner surface of each flange portion and the full length or a part of the butt portion of one side surface of the web portion, the strength of one H-shaped steel formed by connection is efficient. The strength can be made higher than the strength of the original H-shaped steel, and the strength balance of the H-shaped steel after connection is improved.
(3) When the reinforcing material can be applied to both the flange portion and the web portion of the butt portion of the H-shaped steel, the number of times of welding can be reduced, and the H-shaped steels can be connected in a short time. It can be performed.
(4) When the reinforcing material to be used is also used as a backing material for welding the butt portion, even if welding is performed as it is, there is no need to separately apply a backing plate, and the H-shaped steels are efficiently connected to each other. Can do.
(5) The bending resistance force RN of the reinforcing material addressed to the flange portion and the bending resistance force RwN of the welded portion on the outer periphery of the reinforcing material are respectively set to the R-shaped connecting portion of the flange portion and the web portion of the H-shaped steel material. The shear resistance RS of the reinforcing material itself and the shear resistance RwS of the welded portion on the outer periphery of the reinforcing material are larger than the bending resistance force N of the (under-welded portion) and addressed to the web portion 4, respectively. As long as it is larger than the shear resistance S of the R-shaped connecting part, the strength of one H-shaped steel formed by connecting any H-shaped steel and reinforcing material can It can be equal to or higher than the strength of the H-shaped steel.

（Ｈ型鋼溶接継手構造の実施形態１）
本発明のＨ型鋼溶接継手構造の実施形態の一例を、図１〜図４に基づいて詳細に説明する。本実施形態のＨ型鋼溶接継手構造は、図１に示すように、２本のＨ型鋼１ａ、１ｂの端部同士を突き合わせて連結させたものである。図に示すように、本実施形態のＨ型鋼１ａ、１ｂは、図に示すように、従来用いられているものと同型のＨ型の鋼材であって、図１、図２（ａ）（ｂ）に示すように、各フランジ部３の内側面の突合せ部分５上には補強材２ａが、ウェブ部４の一側面の突合せ部分５上には補強材２ｂが、夫々両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれている。Ｈ型鋼１ａとＨ型鋼１ｂとは、双方のウェブ部４の高さＨ、フランジ部３の幅Ｂ、ウェブ部４の厚さｔ1、フランジ部３の厚さｔ2が夫々同じ寸法のものを用いている。本実施形態では、Ｈ型鋼１ａ、１ｂは、ウェブ部４の高さＨとフランジ部３の幅Ｂとが、３００×３００（単位：ｍｍ）であって、ウェブ部４の厚さｔ1とフランジ部３の厚さｔ2とが、１０×１５（単位：ｍｍ）であるものを用いているが、Ｈ型鋼１ａ、１ｂは、この寸法のものには限られず、２本のＨ型鋼の寸法を同じとする限り、Ｈ×Ｂ×ｔ1×ｔ2が、２００×２００×８×１２のものや、２５０×２５０×９×１４のものや、３５０×３５０×１２×１９のもの（いずれも単位：ｍｍ）等、任意の寸法のものを用いることができる。本実施形態のＨ型鋼１ａ、１ｂも、図２（ａ）に示すように、フランジ部３とウェブ部４とのＲ状連結部６の角が丸く（Ｒ状に）なって肉厚となっているため、その部分の肉厚方向内側まで溶融することが難しく溶接が不足するようになっている。ちなみに、前記Ｒ状連結部６は溶接不足部と呼ばれている。 (Embodiment 1 of H-shaped steel welded joint structure)
One example of an embodiment of the H-shaped steel welded joint structure of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1, the H-shaped steel welded joint structure of the present embodiment is formed by abutting and connecting the ends of two H-shaped steels 1a and 1b. As shown in the figure, the H-shaped steels 1a and 1b of the present embodiment are H-type steel materials of the same type as those conventionally used, as shown in the figure, and are shown in FIGS. ), The reinforcing material 2a is provided on the abutting portion 5 on the inner side surface of each flange portion 3, and the reinforcing material 2b is provided on the abutting portion 5 on one side surface of the web portion 4, respectively. It is addressed over. The H-shaped steel 1a and H-type steel 1b, the height H of both the web portion 4, the width of the flange portion 3 B, Of a thickness t 1 of the web portion 4, the thickness t 2 of the flange portion 3 of the respective same dimensions Is used. In the present embodiment, the H-shaped steels 1a and 1b have a height H of the web part 4 and a width B of the flange part 3 of 300 × 300 (unit: mm), and the thickness t 1 of the web part 4 The flange portion 3 has a thickness t 2 of 10 × 15 (unit: mm). However, the H-shaped steels 1a and 1b are not limited to those of this size, and are two H-shaped steels. As long as the dimensions are the same, H × B × t 1 × t 2 is 200 × 200 × 8 × 12, 250 × 250 × 9 × 14, 350 × 350 × 12 × 19 ( Any of them can be of any size such as unit: mm). As shown in FIG. 2 (a), the H-shaped steels 1a and 1b of the present embodiment also become thicker because the corners of the R-shaped connecting portion 6 between the flange portion 3 and the web portion 4 are rounded (R-shaped). Therefore, it is difficult to melt to the inside in the thickness direction of the portion, and welding is insufficient. Incidentally, the said R-shaped connection part 6 is called the welding insufficient part.

図２（ａ）（ｂ）に示す補強材２ａ、２ｂは、板状の鋼材であって、各フランジ部３の内側面と、ウェブ部４の一側面の突合せ部分５に、全部で５枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれている。補強材２ａ、２ｂには、前記Ｈ型鋼１ａ、１ｂと同じ素材の鋼材を用いる。各フランジ部３に宛がわれた補強材２ａは、曲げに対しての補強を、ウェブ部４に宛がわれた補強材２ｂは、せん断に対しての補強を、夫々行うことができる。   Reinforcing members 2a and 2b shown in FIGS. 2 (a) and 2 (b) are plate-shaped steel materials, and a total of five are provided on the inner surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. , They are straddled across both H-shaped steels 1a, 1b so as to cover the butt portion 5, respectively. For the reinforcing members 2a and 2b, the same steel material as the H-shaped steels 1a and 1b is used. The reinforcing material 2a addressed to each flange portion 3 can reinforce against bending, and the reinforcing material 2b addressed to the web portion 4 can reinforce against shearing.

本実施形態のＨ型鋼溶接継手構造では、図１、図２（ａ）（ｂ）に示す、Ｈ型鋼１ａ、１ｂ同士の突合せ部分５の全周を突き合わせ溶接し（図３（ｂ）、４（ｂ）中のｗ1が溶接部分である。）、更に、図３、図４に示すように、配置した補強材２ａ、２ｂの外周縁２ｃ、２ｄのうち幅部分（図中Ｐｗ、Ｑｗ側）の二辺を隅肉溶接して、２本のＨ型鋼１ａ、１ｂを連結させている（図３（ｂ）（ｃ）、図４（ｂ）（ｃ）中のｗ2が溶接部分である。）。また、本発明のＨ型鋼溶接継手構造では、突合せ部分５の一部だけを溶接したり、補強材２ａ、２ｂの外周縁２ｃ、２ｄ全周を隅肉溶接することもできる。 In the H-shaped steel welded joint structure of the present embodiment, the entire circumference of the butted portion 5 between the H-shaped steels 1a and 1b shown in FIGS. 1 and 2 (a) and 2 (b) is butt welded (FIG. 3 (b), 4 (b) w 1 in is welded portion.) Furthermore, as shown in FIGS. 3 and 4, the reinforcing member 2a arranged, the outer peripheral edge 2c of 2b, the width portion of 2d (figure Pw, Qw the two sides of the side) by fillet welding, two H-section steel 1a, which is connected to 1b (FIG. 3 (b) (c), w 2 is welded portion in FIG. 4 (b) (c) .) Moreover, in the H-shaped steel welded joint structure of the present invention, only a part of the butt portion 5 can be welded, or the whole outer peripheries 2c and 2d of the reinforcing materials 2a and 2b can be welded.

溶接は、連結して形成した１本のＨ型鋼の強度が、もとのＨ型鋼の強度と同じかそれ以上となるように計算して行う。本実施形態の場合には、具体的に、図１〜図４及び次の数１、数２に示す計算によって、フランジ部３の補強材２ａ自体の曲げ抵抗力ＲＮと、補強材２ａの外周の溶接部の曲げ抵抗力ＲｗＮとが、夫々Ｒ状連結部６の曲げ抵抗力Ｎより大きく、且つウェブ部４の補強材２ｂ自体のせん断抵抗力ＲＳと、補強材２ｂの外周の溶接部のせん断抵抗力ＲｗＳとが、夫々Ｒ状連結部６のせん断抵抗力Ｓより大きくなるように、各補強材２ａ、２ｂの寸法、溶接長、溶接面積を調整する。
（数１）
１．フランジ部３の補強について
（１）Ｒ状連結部６の曲げ抵抗力の計算
（ａ）Ｒ状連結部６の断面係数：Ｚｘ〔ｃｍ3〕
（ｂ）Ｒ状連結部６の曲げモーメント：Ｍ＝Ｌｆ・Ｚｘ〔ｋＮｃｍ〕
（Ｌｆ：Ｈ型鋼自体の曲げの許容応力値〔ｋＮ／ｃｍ2〕）
（ｃ）Ｒ状連結部６の曲げ抵抗力：Ｎ＝Ｍ／ｄ〔ｋＮ〕
（ｄ：上下のフランジ部３間の間隙〔ｃｍ〕）

（２）補強材２ａの曲げ抵抗力の計算
（ａ）補強材２ａ自体の曲げの許容応力値：Ｌｆ〔ｋＮ／ｃｍ2〕
（Ｈ型鋼と同じ鋼材を用いるため）
（ｂ）補強材２ａ（２枚）の断面積：Ａ1＝Ｐｔ×Ｐｗ×２〔ｃｍ2〕
（Ｐｔ：補強材２ａの厚さ〔ｃｍ〕、Ｐｗ：補強材２ａの幅〔ｃｍ〕）
（ｃ）補強材２ａの曲げ抵抗力：ＲＮ＝Ｌｆ・Ａ1〔ｋＮ〕

∴ＲＮ＞Ｎであれば良い。

（３）溶接部の曲げ抵抗力の計算
（ａ）溶接部の許容応力値：Ｌｆｗ〔ｋＮ／ｃｍ2〕
（ｂ）溶接長：Ｌ1＝Ｐｗ×２〔ｃｍ〕
（ｃ）溶接面積：Ａ2＝Ｌ1×０．７×ｂ＝Ｌ1×Ｈ1〔ｃｍ2〕
（ｂ：溶接部の脚長〔ｃｍ〕、Ｈ1：隅肉溶接の一番短い箇所の距離〔ｃｍ〕）
（ｄ）溶接部の曲げ抵抗力：ＲｗＮ＝Ｌｆｗ・Ａ2〔ｋＮ〕

∴ＲｗＮ＞Ｎであれば良い。

（数２）
２．ウェブ部４の補強について
（１）Ｒ状連結部６のせん断抵抗力の計算
（ａ）Ｒ状連結部６の断面積：Ａｗ〔ｃｍ2〕
（ｂ）Ｒ状連結部６のせん断抵抗力：Ｓ＝Ｌｆｓ・Ａｗ〔ｋＮ〕
（Ｌｆｓ：Ｈ型鋼自体のせん断の許容応力値〔ｋＮ／ｃｍ2〕）

（２）補強材２ｂのせん断抵抗力の計算
（ａ）補強材２ｂ自体のせん断の許容応力値：Ｌｆｓ〔ｋＮ／ｃｍ2〕
（Ｈ型鋼と同じ鋼材を用いるため）
（ｂ）補強材２ｂの断面積：Ａ3＝Ｑｔ×Ｑｗ〔ｃｍ2〕
（Ｑｔ：補強材２ｂの厚さ〔ｃｍ〕、Ｑｗ：補強材２ｂの幅〔ｃｍ〕）
（ｃ）補強材２ｂのせん断抵抗力：ＲＳ＝Ｌｆｓ・Ａ3〔ｋＮ〕

∴ＲＳ＞Ｓであれば良い。

（３）溶接部のせん断抵抗力の計算
（ａ）溶接部の許容応力値：Ｌｆｓ〔ｋＮ／ｃｍ2〕
（ｂ）溶接長：Ｌ2＝Ｑｗ〔ｃｍ〕
（ｃ）溶接面積：Ａ4＝Ｌ2×０．７×ａ＝Ｌ1×Ｈ2〔ｃｍ2〕
（ａ：溶接部の脚長〔ｃｍ〕、Ｈ2：隅肉溶接の一番短い箇所の距離〔ｃｍ〕）
（ｄ）溶接部のせん断抵抗力：ＲｗＳ＝Ｌｆｓ・Ａ4〔ｋＮ〕

∴ＲｗＳ＞Ｓであれば良い。
Welding is performed by calculation so that the strength of one H-shaped steel formed by joining is equal to or higher than the strength of the original H-shaped steel. In the case of the present embodiment, specifically, the bending resistance force RN of the reinforcing member 2a itself of the flange portion 3 and the outer periphery of the reinforcing member 2a are calculated by the calculations shown in FIGS. The bending resistance RwN of each welded portion is greater than the bending resistance N of the R-shaped connecting portion 6, and the shear resistance RS of the reinforcing member 2b itself of the web portion 4 and the welded portion on the outer periphery of the reinforcing member 2b. The dimensions, weld lengths, and weld areas of the reinforcing members 2a and 2b are adjusted so that the shear resistance force RwS is greater than the shear resistance force S of the R-shaped connecting portion 6, respectively.
(Equation 1)
1. Reinforcement of flange part 3 (1) Calculation of bending resistance of R-shaped connecting part 6 (a) Section modulus of R-shaped connecting part 6: Zx [cm 3 ]
(B) Bending moment of the R-shaped connecting portion 6: M = Lf · Zx [kNcm]
(Lf: allowable stress value of bending of H-shaped steel itself [kN / cm 2 ])
(C) Bending resistance of the R-shaped connecting portion 6: N = M / d [kN]
(D: gap between the upper and lower flange portions 3 [cm])

(2) Calculation of bending resistance of reinforcing material 2a (a) Allowable stress value of bending of reinforcing material 2a itself: Lf [kN / cm 2 ]
(Because the same steel as H-shaped steel is used)
(B) Cross-sectional area of the reinforcing material 2a (2 sheets): A 1 = Pt × Pw × 2 [cm 2 ]
(Pt: thickness of the reinforcing material 2a [cm], Pw: width of the reinforcing material 2a [cm])
(C) Bending resistance of the reinforcing material 2a: RN = Lf · A 1 [kN]

It is sufficient if ∴RN> N.

(3) Calculation of bending resistance of welded portion (a) Allowable stress value of welded portion: Lfw [kN / cm 2 ]
(B) Weld length: L 1 = Pw × 2 [cm]
(C) Welding area: A 2 = L 1 × 0.7 × b = L 1 × H 1 [cm 2 ]
(B: leg length [cm] of the welded portion, H 1 : distance of the shortest part of fillet welding [cm])
(D) Bending resistance of weld zone: RwN = Lfw · A 2 [kN]

It is sufficient if ｗRwN> N.

(Equation 2)
2. Reinforcement of web part 4 (1) Calculation of shear resistance of R-shaped connecting part 6 (a) Cross-sectional area of R-shaped connecting part 6: Aw [cm 2 ]
(B) Shear resistance of the R-shaped connecting portion 6: S = Lfs · Aw [kN]
(Lfs: allowable stress value of shear of H-shaped steel itself [kN / cm 2 ])

(2) Calculation of shear resistance of reinforcing material 2b (a) Allowable stress value of shearing of reinforcing material 2b itself: Lfs [kN / cm 2 ]
(Because the same steel as H-shaped steel is used)
(B) Cross-sectional area of the reinforcing material 2b: A 3 = Qt × Qw [cm 2 ]
(Qt: thickness of the reinforcing material 2b [cm], Qw: width of the reinforcing material 2b [cm])
(C) Shear resistance of the reinforcing material 2b: RS = Lfs · A 3 [kN]

∴RS> S is sufficient.

(3) Calculation of shear resistance of weld zone (a) Allowable stress value of weld zone: Lfs [kN / cm 2 ]
(B) Weld length: L 2 = Qw [cm]
(C) Welding area: A 4 = L 2 × 0.7 × a = L 1 × H 2 [cm 2 ]
(A: leg length [cm] of the welded portion, H 2 : distance of the shortest part of fillet welding [cm])
(D) Shear resistance of the weld zone: RwS = Lfs · A 4 [kN]

It is sufficient if ｗRwS> S.

図１〜図４に示すＨ型鋼溶接継手構造を用いて、２本のＨ型鋼を連結するためには、次のようにする。
（１）２本のＨ型鋼１ａ、１ｂの端部同士を突き合わせ、一方のＨ型鋼１ｂのフランジ部３及びウェブ部４の端部を、図３（ａ）、図４（ａ）に示すように開先加工する。開先部の角度は、本例では４５°としているが、任意の角度とすることができる。
（２）補強材２ａ、２ｂを、各フランジ部３の内側面（開先加工していない面）と、ウェブ部４の一側面（開先加工していない面）の突合せ部分５上に、全部で５枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がう。
（３）各補強材２ａ、２ｂの外周縁２ｃ、２ｄのうち幅部分（図中Ｐｗ、Ｑｗ側）を隅肉溶接して、各補強材２ａ、２ｂを各フランジ部３の内側面と、ウェブ部４の一側面に固定する。図３（ｂ）（ｃ）、図４（ｂ）（ｃ）中のｗ2が溶接部分である。前記したように、補強材２ａ、２ｂの外周縁２ｃ、２ｄの全周を隅肉溶接することもできる。
（４）図３（ｂ）、図４（ｂ）に示すように、開先加工をした各フランジ部３の外側面と、ウェブ部４の他側面の突合せ部分５を溶接する。図３（ｂ）、図４（ｂ）中のｗ1が溶接部分である。このとき、先に固定した補強材２ａ、２ｂが、溶接用裏当て材として機能し、溶融金属が裏側から漏れ出ることがなくなる。突合せ部分５が全て溶接されて固定されると、２本のＨ型鋼１ａ、１ｂの連結が完了する。
なお、各工程は上記の順には限られず、先に、突き合わせた２本のＨ型鋼１ａ、１ｂの突合せ部分５を溶接し、その後に補強材２ａ、２ｂを配置して溶接することもできる。 In order to connect two H-shaped steels using the H-shaped steel welded joint structure shown in FIGS.
(1) The ends of the two H-shaped steels 1a and 1b are butted together, and the ends of the flange part 3 and the web part 4 of one H-shaped steel 1b are shown in FIGS. 3 (a) and 4 (a). To bevel. The angle of the groove portion is 45 ° in this example, but can be any angle.
(2) The reinforcing members 2a and 2b are placed on the abutting portion 5 on the inner side surface (surface not subjected to groove processing) of each flange portion 3 and one side surface (surface not subjected to groove processing) of the web portion 4. A total of five sheets are placed across both H-shaped steels 1a and 1b so as to cover the butt portion 5 respectively.
(3) Fillet weld the width portions (Pw, Qw side in the figure) of the outer peripheral edges 2c, 2d of the reinforcing members 2a, 2b, and connect the reinforcing members 2a, 2b to the inner surface of each flange portion 3, Fix to one side of the web part 4. The w 2 in FIGS. 3B and 4C and FIGS. 4B and 4C is a welded portion. As described above, fillet welding may be performed on the entire circumference of the outer peripheral edges 2c and 2d of the reinforcing members 2a and 2b.
(4) As shown in FIGS. 3 (b) and 4 (b), the outer surface of each flange portion 3 subjected to the groove processing and the butted portion 5 on the other side surface of the web portion 4 are welded. In FIG. 3B and FIG. 4B, w 1 is a welded portion. At this time, the reinforcing members 2a and 2b fixed earlier function as a backing material for welding, and the molten metal does not leak from the back side. When all the butted portions 5 are welded and fixed, the connection of the two H-shaped steels 1a and 1b is completed.
In addition, each process is not restricted to said order, First, the butt | matching part 5 of the two H-shaped steel 1a, 1b which faced can be welded, and it can also arrange | position and weld the reinforcing materials 2a, 2b after that.

（その他の実施形態）
本発明のＨ型鋼溶接継手構造の補強材の位置、数、形状等は、前記実施形態１に示すものには限られず、少なくとも、各フランジ部の一側面と、ウェブ部の一側面の突合せ部分の一方又は双方に、両Ｈ型鋼に跨がせて宛がわれていれば、任意の位置、数、形状とすることができる。また、各補強材の寸法は、連結して形成した１本のＨ型鋼の強度が、もとのＨ型鋼の強度と同じかそれ以上となるようにすれば、任意の寸法とすることができる。例えば、以下に示す図５（ａ）（ｂ）〜図３４（ａ）（ｂ）に示す各種位置、数、形状とすることができる。 (Other embodiments)
The position, number, shape, and the like of the reinforcing member of the H-shaped steel welded joint structure of the present invention are not limited to those shown in the first embodiment, and at least a butt portion of one side surface of each flange portion and one side surface of the web portion. If it is straddled across one or both of the two H-shaped steels, it can be in any position, number and shape. Further, the size of each reinforcing material can be set to an arbitrary size if the strength of one H-shaped steel formed by joining is equal to or higher than the strength of the original H-shaped steel. . For example, various positions, numbers, and shapes shown in FIGS. 5A and 5B to 34A and 34B shown below can be used.

図５（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の補強材２ａ、２ｂが、各フランジ部３の内側面と、ウェブ部４の両側面の突合せ部分５に、全部で６枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、ウェブ部４の両側面に補強材２ｂを宛がった点で、前記実施形態１記載のＨ型鋼溶接継手構造とは異なるが、補強材２ａ、２ｂの形状は、前記実施形態１記載のものと共通する。   In the H-shaped steel welded joint structure shown in FIGS. 5 (a) and 5 (b), the plate-like reinforcing members 2a and 2b are entirely attached to the inner surface of each flange portion 3 and the butted portions 5 on both side surfaces of the web portion 4. The six pieces are respectively straddled across both H-shaped steels 1a and 1b so as to cover the butted portions 5 respectively. This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure described in the first embodiment in that the reinforcing material 2b is assigned to both side surfaces of the web portion 4, but the shapes of the reinforcing materials 2a and 2b are as follows. , Common to those described in the first embodiment.

図６（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の補強材２ａ、２ｂが、各フランジ部３の両側面と、ウェブ部４の一側面の突合せ部分５に、全部で７枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、フランジ部３の両面に補強材２ａを宛がった点で、前記実施形態１記載のＨ型鋼溶接継手構造とは異なるものである。また、各フランジ部３の外側面の補強材２ａは、フランジ部３の幅とほぼ同じ幅の一枚の幅広の板状部材としてある。   In the H-shaped steel welded joint structure shown in FIGS. 6 (a) and 6 (b), the plate-like reinforcing members 2a and 2b are placed on both side surfaces of the flange portions 3 and the butted portions 5 on one side surface of the web portion 4 in total. The seven pieces are respectively straddled across both H-shaped steels 1a and 1b so as to cover the butted portions 5 respectively. This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure described in the first embodiment in that the reinforcing material 2 a is assigned to both surfaces of the flange portion 3. Further, the reinforcing material 2 a on the outer surface of each flange portion 3 is a single wide plate-like member having a width substantially the same as the width of the flange portion 3.

図７（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の補強材２ａ、２ｂが、各フランジ部３の両側面と、ウェブ部４の両側面の突合せ部分５に、全部で８枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。各フランジ部３の外側面の補強材２ａは、一枚の幅の広い板状部材としてある。このＨ型鋼溶接継手構造は、ウェブ部４の両側面に補強材２ｂを宛がった点で、前記図６（ａ）（ｂ）に示すＨ型鋼溶接継手構造とは異なるが、補強材２ａ、２ｂの形状は、前記図６（ａ）（ｂ）に示すものと共通する。   In the H-shaped steel welded joint structure shown in FIGS. 7 (a) and 7 (b), the plate-like reinforcing members 2a and 2b are entirely attached to both side surfaces of each flange portion 3 and the butted portions 5 on both side surfaces of the web portion 4. Eight pieces are respectively straddled across both H-shaped steels 1a and 1b so as to cover the butted portions 5 respectively. The reinforcing material 2a on the outer surface of each flange portion 3 is a single wide plate-like member. This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure shown in FIGS. 6 (a) and 6 (b) in that the reinforcing material 2b is assigned to both side surfaces of the web portion 4, but the reinforcing material 2a. The shape of 2b is the same as that shown in FIGS. 6 (a) and 6 (b).

図８（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、細長の板状の補強材２ａ、２ｂが、各フランジ部３の内側面と、ウェブ部４の一側面の突合せ部分５に、全部で５本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造では、各補強材２ａ、２ｂはＨ型鋼１ａ、１ｂの突合せ部分５の一部にのみ宛がわれている点が前記実施形態１とは異なる。   In the H-shaped steel welded joint structure shown in FIGS. 8 (a) and 8 (b), the elongated plate-like reinforcing members 2 a and 2 b are provided on the inner surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. A total of five pieces are assigned across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. This H-shaped steel welded joint structure is different from the first embodiment in that each reinforcing member 2a, 2b is addressed only to a part of the butted portion 5 of the H-shaped steel 1a, 1b.

図９（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、細長の板状の補強材２ａ、２ｂが、各フランジ部３の外側面と、ウェブ部４の一側面の突合せ部分５に、全部で５本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、フランジ部３の補強材２ａが、各フランジ部３の外側面に宛がわれている点で図８（ａ）（ｂ）に示すものとは異なる。宛がわれている補強材２ａ、２ｂは図８（ａ）（ｂ）に示すものと共通する。   In the H-shaped steel welded joint structure shown in FIGS. 9 (a) and 9 (b), the elongated plate-like reinforcing members 2 a and 2 b are provided on the outer surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. A total of five pieces are assigned across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. This H-shaped steel welded joint structure is different from that shown in FIGS. 8A and 8B in that the reinforcing material 2a of the flange portion 3 is addressed to the outer surface of each flange portion 3. The assigned reinforcements 2a and 2b are the same as those shown in FIGS. 8 (a) and 8 (b).

図１０（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、細長の板状の補強材２ａ、２ｂが、各フランジ部３の両側面と、ウェブ部４の両側面の突合せ部分５に、全部で１０本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。また、各フランジ部３、ウェブ部４の補強材２ａ、２ｂは、一側面の補強材２ａ（２ｂ）と他側面の補強材２ａ（２ｂ）とが対応した位置に配置されている。このＨ型鋼溶接継手構造は、補強材２ａ、２ｂが、各フランジ部３及びウェブ部４の両側面に宛がわれている点で図８（ａ）（ｂ）に示すものとは異なる。宛がわれている補強材２ａ、２ｂは図８（ａ）（ｂ）に示すものと共通する。   In the H-shaped steel welded joint structure shown in FIGS. 10 (a) and 10 (b), the elongated plate-like reinforcing members 2 a and 2 b are attached to the butt portions 5 on both side surfaces of each flange portion 3 and both side surfaces of the web portion 4. A total of ten pieces are assigned across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. Further, the reinforcing members 2a and 2b of the flange portions 3 and the web portions 4 are disposed at positions where the reinforcing material 2a (2b) on one side and the reinforcing material 2a (2b) on the other side correspond to each other. This H-shaped steel welded joint structure differs from that shown in FIGS. 8A and 8B in that the reinforcing members 2a and 2b are addressed to both side surfaces of each flange portion 3 and web portion 4. The assigned reinforcements 2a and 2b are the same as those shown in FIGS. 8 (a) and 8 (b).

図１１（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、細長の板状の補強材２ａ、２ｂが、各フランジ部３の両側面と、ウェブ部４の両側面の突合せ部分５に、全部で６本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。また、各フランジ部３、ウェブ部４の補強材２ａ、２ｂは、一側面の補強材２ａ（２ｂ）と他側面の補強材２ａ（２ｂ）とが左右対称の位置に宛がわれている。このＨ型鋼溶接継手構造は、補強材２ａ、２ｂの配置が、図８（ａ）（ｂ）に示すものとは異なるが、宛がわれている補強材２ａ、２ｂは図８（ａ）（ｂ）に示すものと共通する。   In the H-shaped steel welded joint structure shown in FIGS. 11 (a) and 11 (b), the elongated plate-like reinforcing members 2 a and 2 b are provided on the butt portions 5 on both side surfaces of each flange portion 3 and both side surfaces of the web portion 4. A total of six pieces are assigned across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. In addition, the reinforcing members 2a and 2b of the flange portions 3 and the web portions 4 are arranged such that the reinforcing material 2a (2b) on one side and the reinforcing material 2a (2b) on the other side are symmetrical. In this H-shaped steel welded joint structure, the arrangement of the reinforcing members 2a and 2b is different from that shown in FIGS. 8A and 8B, but the assigned reinforcing members 2a and 2b are shown in FIG. Common to that shown in b).

図１２（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、細長の板状の補強材２ａ、２ｂが、各フランジ部３の内側面と、ウェブ部４の一側面の突合せ部分５に、全部で５本、夫々突合せ部分５と斜めに交わるように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、補強材２ａ、２ｂの配置が、図８（ａ）（ｂ）に示すものとは異なるが、宛がわれている補強材２ａ、２ｂは図８（ａ）（ｂ）に示すものと共通する。補強材２ａ、２ｂは、幅広のものとすることもできる。   In the H-shaped steel welded joint structure shown in FIGS. 12 (a) and 12 (b), the elongated plate-like reinforcing members 2 a and 2 b are provided on the inner surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. A total of five pieces are assigned across the two H-shaped steels 1a and 1b so as to cross the butt portion 5 at an angle. In this H-shaped steel welded joint structure, the arrangement of the reinforcing members 2a and 2b is different from that shown in FIGS. 8A and 8B, but the assigned reinforcing members 2a and 2b are shown in FIG. Common to that shown in b). The reinforcing members 2a and 2b may be wide.

図１３（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、Ｈ型鋼を被覆可能なカバー状に一体成形された補強材２を、Ｈ型鋼１ａ、１ｂの突合せ部分５を被覆して備えるものである。このＨ型鋼溶接継手構造における補強材２は、Ｈ型鋼１ａ、１ｂと同じ素材の鋼材を、Ｈ型鋼１ａ、１ｂを挿通可能な開口部を開口したＨ型の筒型に成形したものである。   13 (a) and 13 (b), the H-shaped steel welded joint structure is provided with a reinforcing material 2 integrally formed in a cover shape capable of covering H-shaped steel, covering the butted portions 5 of the H-shaped steels 1a and 1b. It is. The reinforcing material 2 in this H-shaped steel welded joint structure is formed by forming a steel material of the same material as the H-shaped steels 1a and 1b into an H-shaped cylindrical shape having an opening through which the H-shaped steels 1a and 1b can be inserted.

図１４（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、三角形の板状の補強材２ａ、２ｂが、各フランジ部３の外側面と、ウェブ部４の両側面の突合せ部分５に、全部で４枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。ウェブ部４の両側面の各補強材２ｂは、底辺の位置が夫々逆になるように配置されている。図に示す補強材２ａ、２ｂは、略正三角形であるが、補強材２の形状は、正三角形には限られず、任意の三角形とすることができる。   In the H-shaped steel welded joint structure shown in FIGS. 14 (a) and 14 (b), triangular plate-shaped reinforcing members 2 a and 2 b are provided on the outer surface of each flange portion 3 and the butted portions 5 on both side surfaces of the web portion 4. A total of four sheets are addressed across both H-shaped steels 1a and 1b so as to cover the butt portion 5, respectively. The reinforcing members 2b on both side surfaces of the web portion 4 are arranged so that the positions of the bottom sides are reversed. The reinforcing members 2a and 2b shown in the figure are substantially equilateral triangles, but the shape of the reinforcing member 2 is not limited to equilateral triangles and can be arbitrary triangles.

図１５（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、円形の板状の補強材２ａ、２ｂが、各フランジ部３の外側面と、ウェブ部４の両側面の突合せ部分５に、全部で４枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。図に示す補強材２ａ、２ｂは、略真円形であるが、補強材２の形状は、真円形には限られず、楕円形等、任意の円形とすることができる。   In the H-shaped steel welded joint structure shown in FIGS. 15 (a) and 15 (b), circular plate-shaped reinforcing members 2 a and 2 b are provided on the outer surface of each flange portion 3 and the butted portions 5 on both side surfaces of the web portion 4. A total of four sheets are addressed across both H-shaped steels 1a and 1b so as to cover the butt portion 5, respectively. The reinforcing members 2a and 2b shown in the figure are substantially true circles, but the shape of the reinforcing member 2 is not limited to a true circle, and may be an arbitrary circle such as an ellipse.

図１６（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、棒状の鉄筋又は丸鋼を補強材２ａ、２ｂとして、各フランジ部３の内側面と、ウェブ部４の両側面の突合せ部分５に、全部で７本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造では、図に示すように、ウェブ部４の一側面には補強材２ｂが２本、他側面には補強材２ｂが１本宛がわれている。補強材２ｂの本数は、ウェブ部４の一側面と他側面とで同じとすることもできる。このＨ型鋼溶接継手構造の補強材２ａ、２ｂには、廃材となった棒状の鉄筋等を利用することも可能である。   16 (a) and 16 (b), the H-shaped steel welded joint structure uses rod-shaped reinforcing bars or round steel as reinforcements 2a and 2b, and the abutting portions 5 on the inner surface of each flange portion 3 and on both side surfaces of the web portion 4. In addition, a total of seven pieces are assigned across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. In this H-shaped steel welded joint structure, as shown in the figure, two reinforcing materials 2b are addressed to one side surface of the web part 4, and one reinforcing material 2b is addressed to the other side surface. The number of reinforcing members 2b can be the same on one side and the other side of the web part 4. For the reinforcing members 2a and 2b of the H-shaped steel welded joint structure, it is also possible to use a rod-shaped reinforcing bar or the like that has become a waste material.

図１７（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、Ｌ字型の鋼材を補強材２として、各フランジ部３の内側面の突合せ部分５に、全部で４本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造においても、前記実施形態１記載のＨ型鋼溶接継手構造のように、ウェブ部４にも補強材２を宛がうことができる。このＨ型鋼溶接継手構造の補強材２ａ、２ｂには、廃材となったＬ字型の鋼材等を利用することも可能である。   17 (a) and 17 (b), the H-shaped steel welded joint structure uses L-shaped steel material as a reinforcing material 2, and there are a total of four butted portions 5 on the butted portions 5 on the inner surface of each flange portion 3 respectively. And straddling both H-shaped steels 1a and 1b so as to be orthogonal to each other. Also in this H-shaped steel welded joint structure, the reinforcing material 2 can be applied to the web portion 4 as in the H-shaped steel welded joint structure described in the first embodiment. For the reinforcing members 2a and 2b of the H-shaped steel welded joint structure, it is possible to use L-shaped steel materials or the like that have become scrap materials.

図１８（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、コ字型の鋼材を補強材２として、各フランジ部３の内側面の突合せ部分５に、全部で４本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造においても、前記実施形態１記載のＨ型鋼溶接継手構造のように、ウェブ部４にも補強材２を宛がうことができる。このＨ型鋼溶接継手構造の補強材２ａ、２ｂには、廃材となったコ字型の鋼材等を利用することも可能である。   18 (a) and 18 (b), the H-shaped steel welded joint structure has a U-shaped steel material as a reinforcing material 2, and a total of four butted portions 5 on the butted portions 5 on the inner surface of each flange portion 3 respectively. And straddling both H-shaped steels 1a and 1b so as to be orthogonal to each other. Also in this H-shaped steel welded joint structure, the reinforcing material 2 can be applied to the web portion 4 as in the H-shaped steel welded joint structure described in the first embodiment. For the reinforcing members 2a and 2b of the H-shaped steel welded joint structure, it is possible to use a U-shaped steel material or the like that has become a waste material.

図１９（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の補強材２ａ、２ｂが、各フランジ部３の外側面と、ウェブ部４の一側面の突合せ部分５に、全部で３枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。図に示すように、フランジ部３の外側面に配置された補強材２ａは、フランジ部３の幅とほぼ同じ幅の一枚の幅広の板状部材としてある。このＨ型鋼溶接継手構造は、フランジ部３の内側面に補強材２ａを備えていない点で、前記図６（ａ）（ｂ）に示すＨ型鋼溶接継手構造とは異なるが、他の部分は共通し、補強材２ａ、２ｂの形状も共通する。   In the H-shaped steel welded joint structure shown in FIGS. 19 (a) and 19 (b), the plate-like reinforcing members 2a and 2b are entirely placed on the outer surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. The three pieces are addressed across the H-shaped steels 1a and 1b so as to cover the butt portion 5, respectively. As shown in the figure, the reinforcing member 2 a disposed on the outer surface of the flange portion 3 is a single wide plate-like member having a width substantially the same as the width of the flange portion 3. This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure shown in FIGS. 6 (a) and 6 (b) in that the reinforcing member 2a is not provided on the inner surface of the flange portion 3, but the other parts are as follows. The shape of the reinforcing members 2a and 2b is also common.

図２０（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、棒状の鉄筋又は丸鋼を補強材２ａ、２ｂとして、各フランジ部３の内側面と、ウェブ部４の両側面の突合せ部分５に、全部で６本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造では、ウェブ部４の補強材２ｂは、一側面の補強材２ｂと他側面の補強材２ｂとが対応した位置に宛がわれている。このＨ型鋼溶接継手構造は、棒状の鉄筋又は丸鋼を補強材２ａ、２ｂとして用いる点では、前記図１６（ａ）（ｂ）に示すＨ型鋼溶接継手構造と共通するが、一側面の補強材２ｂと他側面の補強材２ｂとが対応した位置に宛がわれている点において異なる。   20 (a) and 20 (b), the H-shaped steel welded joint structure uses rod-shaped reinforcing bars or round steel as reinforcements 2a and 2b, and butt portions 5 on the inner surface of each flange portion 3 and both side surfaces of the web portion 4. In addition, a total of six pieces are assigned across the two H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. In this H-shaped steel welded joint structure, the reinforcing material 2b of the web portion 4 is assigned to a position where the reinforcing material 2b on one side corresponds to the reinforcing material 2b on the other side. This H-shaped steel welded joint structure is common to the H-shaped steel welded joint structure shown in FIGS. 16 (a) and 16 (b) in that rod-shaped reinforcing bars or round steel are used as the reinforcing members 2a and 2b. The difference is that the material 2b and the reinforcing material 2b on the other side face the corresponding positions.

図２１（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、パイプ状の補強材２を、各フランジ部３の内側面と、ウェブ部４の双方に接触させて、全部で４本、夫々突合せ部分５と直交するように宛がわれたものである。このＨ型鋼溶接継手構造では、１本の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。   In the H-shaped steel welded joint structure shown in FIGS. 21A and 21B, the pipe-shaped reinforcing material 2 is brought into contact with both the inner surface of each flange portion 3 and the web portion 4, for a total of four. It is addressed so as to be orthogonal to the butted portion 5. In this H-shaped steel welded joint structure, both the flange portion 3 and the web portion 4 can be welded by a single reinforcing material 2.

図２２（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、三角形の板状の補強材２を、ウェブ部４の両側面に二枚ずつ、全部で４枚、夫々突合せ部分５を覆うように宛がったものである。このＨ型鋼溶接継手構造は、２枚の三角形の板状の補強材２を組み合わせて突合せ部分を覆っている点が、図１４（ａ）（ｂ）に示すＨ型鋼溶接継手構造と異なる。   The H-shaped steel welded joint structure shown in FIGS. 22 (a) and 22 (b) has a triangular plate-like reinforcing material 2 on each side surface of the web portion 4, two in total, covering the butt portion 5 in total. Addressed to This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure shown in FIGS. 14A and 14B in that two triangular plate-shaped reinforcing members 2 are combined to cover the butt portion.

図２３（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、棒状の鉄筋又は丸鋼を補強材２として、各フランジ部３の内側面と、ウェブ部４の双方に接触させて４本、更に、ウェブ部４の両側面に２本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、棒状の鉄筋又は丸鋼を補強材２として用いている点は前記図１６、図２０に示すものと共通するが、いずれの補強材２もウェブ部４に宛がわれている点で、図１６、図２０に示すものとは異なる。   The H-shaped steel welded joint structure shown in FIGS. 23 (a) and 23 (b) is a bar-shaped rebar or a round steel as a reinforcing material 2, and is in contact with both the inner surface of each flange portion 3 and the web portion 4, Further, two webs 4 are arranged on both side surfaces of the web part 4 so as to straddle both H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. This H-shaped steel welded joint structure is common to that shown in FIGS. 16 and 20 in that rod-shaped reinforcing bars or round steel are used as the reinforcing material 2, but any reinforcing material 2 is directed to the web portion 4. This is different from those shown in FIGS. 16 and 20.

図２４（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、角鋼を補強材２ａ、２ｂとして、各フランジ部３の内側面と、ウェブ部４の一側面の突合せ部分５に、全部で５本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、補強材２ａ、２ｂに角鋼を用いた点で、前記実施形態１記載のＨ型鋼溶接継手構造とは異なるが、補強材２ａ、２ｂの配置は、前記実施形態１記載のものと共通する。   The H-shaped steel welded joint structure shown in FIGS. 24 (a) and 24 (b) has a square steel as reinforcements 2a and 2b, and has a total of 5 on the inner surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4. It is addressed across the two H-shaped steels 1a and 1b so as to be orthogonal to the book and the butted portion 5, respectively. Although this H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure described in the first embodiment in that square steel is used for the reinforcing materials 2a and 2b, the arrangement of the reinforcing materials 2a and 2b is the same as in the first embodiment. Same as described.

図２５（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、三角形の板状の補強材２を、ウェブ部４の両面に一枚ずつ、全部で２枚、夫々突合せ部分５を覆うように宛がったものである。このＨ型鋼溶接継手構造は、フランジ部３に補強材を備えない点が、図１４（ａ）（ｂ）に示すＨ型鋼溶接継手構造と異なる。   In the H-shaped steel welded joint structure shown in FIGS. 25 (a) and 25 (b), a triangular plate-shaped reinforcing material 2 is provided on each side of the web portion 4 so as to cover the butted portions 5 in total. Addressed. This H-shaped steel welded joint structure differs from the H-shaped steel welded joint structure shown in FIGS. 14A and 14B in that the flange portion 3 is not provided with a reinforcing material.

図２６（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、等辺山形鋼を補強材２として、等辺山形鋼の両端部が各フランジ部３の内側面と、ウェブ部４の両方の突合せ部分５に接触させて、全部で２本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造では、１本の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。   26 (a) and 26 (b), the H-shaped steel welded joint structure uses the equilateral angle steel as the reinforcing material 2, and both ends of the equilateral angle steel are the butt portions of both the inner surface of each flange portion 3 and the web portion 4. 5, and in total, two pieces are arranged across both H-shaped steels 1 a and 1 b so as to be orthogonal to the butted portion 5. In this H-shaped steel welded joint structure, both the flange portion 3 and the web portion 4 can be welded by a single reinforcing material 2.

図２７（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、等辺山形鋼を補強材２として、各フランジ部３の内側面と、ウェブ部４の両方に接触させて、全部で４本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造も、１本の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。このＨ型鋼溶接継手構造では、補強材２は等辺山形鋼には限られず、任意の山形鋼とすることができる。   The H-shaped steel welded joint structure shown in FIGS. 27 (a) and 27 (b) is made of equilateral mountain steel as a reinforcing material 2 and is brought into contact with both the inner surface of each flange portion 3 and the web portion 4, for a total of four, Each of them is straddled across both H-shaped steels 1a and 1b so as to be orthogonal to the butt portion 5, respectively. This H-shaped steel welded joint structure is also configured so that both the flange portion 3 and the web portion 4 can be welded by a single reinforcing material 2. In this H-shaped steel welded joint structure, the reinforcing material 2 is not limited to the equilateral angle steel, and can be any angle steel.

図２８（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、角パイプを補強材２ａ、２ｂとして、各フランジ部３の内側面と、ウェブ部４の一側面の突合せ部分５に、全部で５本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造は、補強材２ａ、２ｂに角パイプを用いた点で、前記実施形態１記載のＨ型鋼溶接継手構造とは異なるが、補強材２ａ、２ｂの配置は、前記実施形態１記載のものと共通する。   28 (a) and 28 (b), the H-shaped steel welded joint structure has square pipes as reinforcing members 2a and 2b, and the inner surface of each flange portion 3 and the butted portion 5 on one side surface of the web portion 4 are all The five pieces are respectively straddled across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portion 5. This H-shaped steel welded joint structure is different from the H-shaped steel welded joint structure described in the first embodiment in that square pipes are used for the reinforcing materials 2a and 2b. However, the arrangement of the reinforcing materials 2a and 2b is different from that of the first embodiment. Common to those described in item 1.

図２９（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の補強材２を斜めにして、各フランジ部３の内側面と、ウェブ部４の両方に接触させて、全部で４枚、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造も、１枚の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。このＨ型鋼溶接継手構造では、補強材２は図に示すような直板には限られず、各フランジ部３の内側面と、ウェブ部４の両方に接触させられれば、曲板であってもよく、任意の形状の板材とすることができる。   The H-shaped steel welded joint structure shown in FIGS. 29 (a) and 29 (b) has a plate-like reinforcing material 2 inclined and is brought into contact with both the inner surface of each flange portion 3 and the web portion 4, so that a total of 4 The sheets are addressed across the two H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. This H-shaped steel welded joint structure is also configured so that both the flange portion 3 and the web portion 4 can be welded by a single reinforcing member 2. In this H-shaped steel welded joint structure, the reinforcing material 2 is not limited to a straight plate as shown in the figure, and may be a curved plate as long as it is brought into contact with both the inner surface of each flange portion 3 and the web portion 4. It can be set as the board | plate material of arbitrary shapes.

図３０（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、上下のフランジ部３の間隙に適合する幅の板状の補強材２を、上下のフランジ部３間に嵌入させて、全部で２枚、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造の補強材２には、上下のフランジ部３間の間隙と同じ幅の幅広の板状部材が用いられている。   The H-shaped steel welded joint structure shown in FIGS. 30 (a) and 30 (b) has a plate-like reinforcing member 2 having a width that fits the gap between the upper and lower flange portions 3 inserted between the upper and lower flange portions 3, The two pieces are respectively straddled across both H-shaped steels 1a and 1b so as to be orthogonal to the butted portion 5. A wide plate-like member having the same width as the gap between the upper and lower flange portions 3 is used for the reinforcing member 2 of the H-shaped steel welded joint structure.

図３１（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、板状の鋼材を曲げて成形した補強材２を、各フランジ部３の内側面と、ウェブ部４の両方に接触させて、全部で４枚、夫々突合せ部分５を覆うように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造も、１枚の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。補強材１は、図２７（ａ）に示すように、角の丸い溶接不足部６を避けて配置できるように板状の鋼材を曲げて角の丸い略Ｌ字型に成形されている。   The H-shaped steel welded joint structure shown in FIGS. 31 (a) and 31 (b) has a reinforcing member 2 formed by bending a plate-shaped steel material in contact with both the inner surface of each flange portion 3 and the web portion 4. A total of four sheets are addressed across both H-shaped steels 1a and 1b so as to cover the butt portion 5, respectively. This H-shaped steel welded joint structure is also configured so that both the flange portion 3 and the web portion 4 can be welded by a single reinforcing member 2. As shown in FIG. 27A, the reinforcing member 1 is formed into a substantially L shape with rounded corners by bending a plate-like steel material so that it can be disposed avoiding the welded portion 6 with rounded corners.

図３２（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、面取り加工を施して成形した補強材２を、各フランジ部３の内側面の突合せ部分５に、全部で４本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造においても、ウェブ部４にも補強材２を備えることができる。   32 (a) and 32 (b), the H-shaped steel welded joint structure has a total of four reinforcing members 2 formed by chamfering at the abutting portions 5 on the inner surface of each flange portion 3, respectively. 5 so as to be straddled across both H-shaped steels 1 a and 1 b so as to be orthogonal to 5. In this H-shaped steel welded joint structure, the web portion 4 can also be provided with the reinforcing material 2.

図３３（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、面取り加工を施して成形した補強材２を、各フランジ部３の内側面と、ウェブ部４の両方に接触させて、全部で４本、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造も、１本の補強材２で、フランジ部３とウェブ部４の双方を溶接できるようにしてある。補強材２は、図２７（ａ）に示すように、角の丸い溶接不足部６を避けて宛がうことができるように、角鋼の角の一つを溶接不足部６に適当する形状に削る面取り加工を施して成形されている。   The H-shaped steel welded joint structure shown in FIGS. 33 (a) and 33 (b) is made by bringing the reinforcing material 2 formed by chamfering into contact with both the inner surface of each flange portion 3 and the web portion 4 in total. The four pieces are assigned across the H-shaped steels 1a and 1b so as to be orthogonal to the butted portions 5, respectively. This H-shaped steel welded joint structure is also configured so that both the flange portion 3 and the web portion 4 can be welded by a single reinforcing material 2. As shown in FIG. 27A, the reinforcing member 2 has one corner of a square steel in a shape suitable for the under welded portion 6 so as to avoid the welded under welded portion 6 with rounded corners. Molded by chamfering.

図３４（ａ）（ｂ）に示すＨ型鋼溶接継手構造は、上下のフランジ部３の間隙に適合する幅のコ字状の補強材２を、上下のフランジ部３間に嵌入させて、全部で２枚、夫々突合せ部分５と直交するように、両Ｈ型鋼１ａ、１ｂに跨がせて宛がわれたものである。このＨ型鋼溶接継手構造の補強材２には、上下のフランジ部３間の間隙と同じ幅の幅広の板状部材が用いられている。   34 (a) and 34 (b), the H-shaped steel welded joint structure is formed by fitting a U-shaped reinforcing member 2 having a width suitable for the gap between the upper and lower flange portions 3 between the upper and lower flange portions 3. The two pieces are addressed across the two H-shaped steels 1a and 1b so as to be orthogonal to the butt portion 5, respectively. A wide plate-like member having the same width as the gap between the upper and lower flange portions 3 is used for the reinforcing member 2 of the H-shaped steel welded joint structure.

本発明のＨ型鋼溶接継手構造は、Ｈ型鋼には限られず、Ｉ型鋼、コ字型鋼等、他の形状の鋼材の連結にも応用することができる。   The H-shaped steel welded joint structure of the present invention is not limited to the H-shaped steel, and can be applied to the connection of steel materials having other shapes such as I-shaped steel and U-shaped steel.

本発明のＨ型鋼溶接継手構造の実施形態の一例を示す斜視図。The perspective view which shows an example of embodiment of the H-shaped steel welded joint structure of this invention. （ａ）は、図１に示すＨ型鋼溶接継手構造を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view which shows the H-shaped steel welded joint structure shown in FIG. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、Ｈ型鋼のフランジ部の溶接前の様子を示す側面説明図。（ｂ）は、（ａ）に示すＨ型鋼のフランジ部の溶接の様子を示す側面説明図。（ｃ）は、Ｈ型鋼と補強材の隅肉溶接の様子を示す側面説明図。(A) is side explanatory drawing which shows the mode before welding of the flange part of H-shaped steel. (B) is side explanatory drawing which shows the mode of welding of the flange part of the H-shaped steel shown to (a). (C) is side explanatory drawing which shows the mode of fillet welding of H-shaped steel and a reinforcing material. （ａ）は、Ｈ型鋼のフランジ部の溶接前の様子を示す側面説明図。（ｂ）は、（ａ）に示すＨ型鋼のフランジ部の溶接の様子を示す側面説明図。（ｃ）は、Ｈ型鋼と補強材の隅肉溶接の様子を示す側面説明図。(A) is side explanatory drawing which shows the mode before welding of the flange part of H-shaped steel. (B) is side explanatory drawing which shows the mode of welding of the flange part of the H-shaped steel shown to (a). (C) is side explanatory drawing which shows the mode of fillet welding of H-shaped steel and a reinforcing material. （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（ウェブ部の両側面に補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (in which the reinforcing material is applied to both side surfaces of the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（フランジ部の両側面に補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (one in which the reinforcing material is applied to both side surfaces of the flange portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（フランジ部及びウェブ部の両側面に補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (in which the reinforcing material is applied to both side surfaces of the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（突合せ部に直交するように補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (those to which a reinforcing material is applied so as to be orthogonal to the butt portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（突合せ部に直交するように補強材を宛がったもの、且つフランジ部の外側面に補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is another example of the embodiment of the H-shaped steel welded joint structure according to the present invention (the reinforcing material is applied so as to be orthogonal to the butt portion, and the reinforcing material is applied to the outer surface of the flange portion. FIG. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（突合せ部に直交するように補強材を宛がったもの、且つフランジ部の両側面に補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is another example of the embodiment of the H-shaped steel welded joint structure according to the present invention (the reinforcing material is assigned so as to be orthogonal to the butt portion, and the reinforcing material is assigned to both side surfaces of the flange portion. FIG. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（一側面の補強材と他側面の補強材とが左右対称の位置に宛がわれたもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (one side reinforcing material and another side reinforcing material are assigned to symmetrical positions). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材を、突合せ部に斜めに宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (reinforcing material obliquely directed to the butt portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（Ｈ型鋼を被覆可能なカバー状に一体成形された補強材で突合せ部分５を被覆したもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (the butt portion 5 is covered with a reinforcing material integrally formed in a cover shape capable of covering H-shaped steel). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（三角形の板状の補強材をフランジ部及びウェブ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure according to the present invention (triangular plate-like reinforcing material directed to the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（円形の板状の補強材をフランジ部及びウェブ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a circular plate-shaped reinforcing material addressed to the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（棒状の鉄筋又は丸鋼を補強材として、各フランジ部の内側面と、ウェブ部の両側面に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is another example of the embodiment of the H-shaped steel welded joint structure of the present invention (bar-shaped reinforcing bars or round steel are used as reinforcing materials and are directed to the inner surface of each flange portion and both side surfaces of the web portion) The front view which shows a thing. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（Ｌ字型の鋼材を補強材として各フランジ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (what is directed to each flange portion using an L-shaped steel material as a reinforcing material). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（コ字型の鋼材を補強材として各フランジ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (what is directed to each flange portion using a U-shaped steel material as a reinforcing material). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（フランジ部の外側面とウェブ部の一側面とに補強材を宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (in which a reinforcing material is applied to the outer side surface of the flange portion and one side surface of the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（棒状の鉄筋又は丸鋼を補強材とし、両側面のウェブ部の補強材を対応する位置に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is another example of the embodiment of the H-shaped steel welded joint structure according to the present invention (a rod-shaped reinforcing bar or round steel is used as a reinforcing material, and the reinforcing material of the web portion on both sides is directed to the corresponding position. FIG. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（パイプ状の補強材を、フランジ部とウェブ部の双方に接触させたもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (in which a pipe-shaped reinforcing material is brought into contact with both the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（三角形の板状の補強材を組み合わせてフランジ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a combination of triangular plate-like reinforcing materials and addressed to the flange portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（棒状の鉄筋又は丸鋼を補強材とし、いずれの補強材もウェブ部に宛がわれているもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of an embodiment of the H-shaped steel welded joint structure of the present invention (a bar-shaped reinforcing bar or round steel is used as a reinforcing material, and each reinforcing material is assigned to the web portion). Figure. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材が角鋼であるもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view which shows another example (what a reinforcing material is a square steel) of embodiment of the H-shaped steel welded joint structure of this invention. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（三角形の板状の補強材をフランジ部にのみ宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a triangular plate-shaped reinforcing material addressed only to the flange portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材が等辺山形鋼であるもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (where the reinforcing material is an equilateral mountain-shaped steel). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材が等辺山形鋼であり、夫々がフランジ部とウェブ部の双方に接触するもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (the reinforcing material is an equilateral mountain-shaped steel, each contacting both the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材が角パイプであるもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view which shows another example (what a reinforcing material is a square pipe) of embodiment of the H-shaped steel welded joint structure of this invention. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（補強材が板状部材であり、夫々がフランジ部とウェブ部の双方に接触するもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (the reinforcing material is a plate-like member, each of which contacts both the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（板状の補強材を上下のフランジ部間に嵌入させたもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (plate-shaped reinforcing material fitted between upper and lower flange portions). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（板状の鋼材を曲げて成形した補強材を、フランジ部とウェブ部の両方に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) shows another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a reinforcing material formed by bending a plate-shaped steel material to both the flange portion and the web portion). Front view. (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（面取り加工を施して成形した補強材を各フランジ部に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure according to the present invention (reinforcing material formed by chamfering and directed to each flange portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（面取り加工を施して成形した補強材をフランジ部とウェブ部の両方に宛がったもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a reinforcing material formed by chamfering and applied to both the flange portion and the web portion). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、本発明のＨ型鋼溶接継手構造の実施形態の他の一例（コ字型の補強材を上下のフランジ部間に嵌入させたもの）を示す正面図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す側面図。(A) is a front view showing another example of the embodiment of the H-shaped steel welded joint structure of the present invention (a U-shaped reinforcing material fitted between upper and lower flange portions). (B) is a side view showing the H-shaped steel welded joint structure shown in (a). （ａ）は、従来のＨ型鋼溶接継手構造を示す斜視図。（ｂ）は、（ａ）に示すＨ型鋼溶接継手構造を示す正面図。(A) is a perspective view which shows the conventional H-shaped steel welded joint structure. (B) is a front view which shows the H-shaped steel welded joint structure shown to (a).

符号の説明Explanation of symbols

１ａ、１ｂ Ｈ型鋼
２ａ、２ｂ 補強材
３ フランジ部
４ ウェブ部
５ 突合せ部分
６ Ｒ状連結部

1a, 1b H-shaped steel 2a, 2b Reinforcement material 3 Flange part 4 Web part 5 Butt part 6 R-shaped connecting part

Claims (5)

端部同士を突き合わせた２本のＨ型鋼のフランジ部及びウェブ部の突合せ部分の内側と外側のいずれか一方又は双方に、鋼材による補強材を両Ｈ型鋼に跨がせて宛がい、その突合せ部分の一部又は全部を溶接し、補強材の外周縁と補強材を宛がったフランジ部とウェブ部の一方又は双方とを溶接したことを特徴とするＨ型鋼溶接継手構造。   The flanges of the two H-shaped steels that are end-to-end and the butt-parts of the web part, either the inside or the outside, or both of them are straddled across both H-shaped steels. An H-shaped steel welded joint structure characterized in that one or both of the outer peripheral edge of the reinforcing material, the flange portion addressed to the reinforcing material, and one or both of the web portions are welded. 請求項１記載のＨ型鋼溶接継手構造において、補強材がＨ型鋼の突合せ部分の全長又は一部に宛がわれたことを特徴とするＨ型鋼溶接継手構造。   The H-shaped steel welded joint structure according to claim 1, wherein the reinforcing material is directed to the entire length or a part of the butt portion of the H-shaped steel. 請求項１又は請求項２記載のＨ型鋼溶接継手構造において、補強材がＨ型鋼の突合せ部分のフランジ部とウェブ部との双方に宛がわれたことを特徴とするＨ型鋼溶接継手構造。   The H-shaped steel welded joint structure according to claim 1 or 2, wherein the reinforcing material is directed to both the flange portion and the web portion of the butt portion of the H-shaped steel. 請求項１乃至請求項３のいずれかに記載のＨ型鋼溶接継手構造において、宛がう補強材が、突合せ部分の溶接用裏当て材と兼用であることを特徴とするＨ型鋼溶接継手構造。   The H-shaped steel welded joint structure according to any one of claims 1 to 3, wherein the addressing reinforcing material is also used as a welding backing material for a butt portion. 請求項１乃至請求項４のいずれかに記載のＨ型鋼溶接継手構造において、フランジ部に宛がわれた補強材の曲げ抵抗力をＲＮ、その補強材の外周の溶接部の曲げ抵抗力をＲｗＮ、Ｈ型鋼材のフランジ部とウェブ部のＲ状連結部（溶接不足部）の曲げ抵抗力をＮ、ウェブ部４に宛がわれた補強材自体のせん断抵抗力をＲＳ、その補強材の外周の溶接部のせん断抵抗力をＲｗＳ、Ｒ状連結部のせん断抵抗力をＳとしたとき、これらが次の１〜４の全ての条件を満たすことを特徴とするＨ型鋼溶接継手構造。
１．ＲＮ＞Ｎ
２．ＲｗＮ＞Ｎ
３．ＲＳ＞Ｓ
４．ＲｗＳ＞Ｓ


5. The H-shaped steel welded joint structure according to claim 1, wherein the bending resistance of the reinforcing material directed to the flange portion is RN, and the bending resistance of the welded portion on the outer periphery of the reinforcing material is RwN. , N is the bending resistance of the flanged part of the H-shaped steel and the R-shaped connecting part (the welded part) of the web part, RS is the shear resistance of the reinforcing material itself addressed to the web part 4, and the outer periphery of the reinforcing material An H-shaped steel welded joint structure, wherein RwS is the shear resistance of the welded portion and S is the shear resistance of the R-shaped connecting portion.
1. RN> N
2. RwN> N
3. RS> S
4). RwS> S


JP2004234876A 2004-08-11 2004-08-11 Structure of welded joint of h-section steel Pending JP2006051522A (en)

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JP2009298443A (en) * 2008-06-12 2009-12-24 Higashida Tekko:Kk Tank truck
JP2013230479A (en) * 2012-04-27 2013-11-14 Nippon Steel & Sumitomo Metal Corp Welded joint structure for steel material
JP2015081431A (en) * 2013-10-22 2015-04-27 株式会社竹中工務店 Reinforcement structure of steel perforated member
JP2015132108A (en) * 2014-01-14 2015-07-23 Ｊｆｅスチール株式会社 Reinforcement structure for h-shaped beam
KR101609269B1 (en) * 2015-08-19 2016-04-05 안승범 H Shaped Steel Reinforcing Structure
CN106670676A (en) * 2016-12-29 2017-05-17 中铁大桥勘测设计院集团有限公司 Steel bridge three-dimensional intersectional welding seam structure and construction method thereof
JPWO2017090400A1 (en) * 2015-11-26 2018-09-06 新日鐵住金株式会社 H-section steel joint structure and H-section steel joining method
WO2019074050A1 (en) * 2017-10-13 2019-04-18 構法開発株式会社 Joint structure for h-beam
JP6583598B1 (en) * 2018-05-10 2019-10-02 日本製鉄株式会社 H-shaped cross-section member joining structure and manufacturing method thereof
WO2019215942A1 (en) * 2018-05-10 2019-11-14 日本製鉄株式会社 Joint structure for h-shaped cross-sectioned member, and method for manufacturing same
CN110900027A (en) * 2019-11-26 2020-03-24 中建钢构有限公司 H-shaped steel production line
CN112091382A (en) * 2020-08-31 2020-12-18 浙江省建工集团有限责任公司 Be used for H shaped steel submerged arc welding frock
JP2021025400A (en) * 2019-08-08 2021-02-22 株式会社高橋監理 Steel assembly structure without high tension bolt
TWI724973B (en) * 2020-07-24 2021-04-11 國立臺灣科技大學 Lateral deformation restraint device of the flanges of an h-shaped steel beam
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JP2009298443A (en) * 2008-06-12 2009-12-24 Higashida Tekko:Kk Tank truck
JP2013230479A (en) * 2012-04-27 2013-11-14 Nippon Steel & Sumitomo Metal Corp Welded joint structure for steel material
JP2015081431A (en) * 2013-10-22 2015-04-27 株式会社竹中工務店 Reinforcement structure of steel perforated member
JP2015132108A (en) * 2014-01-14 2015-07-23 Ｊｆｅスチール株式会社 Reinforcement structure for h-shaped beam
KR101609269B1 (en) * 2015-08-19 2016-04-05 안승범 H Shaped Steel Reinforcing Structure
JPWO2017090400A1 (en) * 2015-11-26 2018-09-06 新日鐵住金株式会社 H-section steel joint structure and H-section steel joining method
CN106670676A (en) * 2016-12-29 2017-05-17 中铁大桥勘测设计院集团有限公司 Steel bridge three-dimensional intersectional welding seam structure and construction method thereof
CN106670676B (en) * 2016-12-29 2019-01-29 中铁大桥勘测设计院集团有限公司 A kind of steel bridge crossings on different level welding line structure and its construction method
JPWO2019074050A1 (en) * 2017-10-13 2020-12-10 構法開発株式会社 H-section steel joint structure
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WO2019215942A1 (en) * 2018-05-10 2019-11-14 日本製鉄株式会社 Joint structure for h-shaped cross-sectioned member, and method for manufacturing same
JP6583598B1 (en) * 2018-05-10 2019-10-02 日本製鉄株式会社 H-shaped cross-section member joining structure and manufacturing method thereof
JP2021025400A (en) * 2019-08-08 2021-02-22 株式会社高橋監理 Steel assembly structure without high tension bolt
JP7164074B2 (en) 2019-08-08 2022-11-01 株式会社高橋監理 Steel frame assembly structure without high-tensile bolts
CN110900027A (en) * 2019-11-26 2020-03-24 中建钢构有限公司 H-shaped steel production line
CN110900027B (en) * 2019-11-26 2023-09-29 中建钢构工程有限公司 H-shaped steel production line and production method
TWI724973B (en) * 2020-07-24 2021-04-11 國立臺灣科技大學 Lateral deformation restraint device of the flanges of an h-shaped steel beam
CN112091382A (en) * 2020-08-31 2020-12-18 浙江省建工集团有限责任公司 Be used for H shaped steel submerged arc welding frock
KR102655503B1 (en) * 2023-11-02 2024-04-22 엘티삼보 주식회사 Messershield sphere, variable end reinforcement device, and tunnel excavation method using the same
CN117961392A (en) * 2024-04-01 2024-05-03 中国水利水电第九工程局有限公司 Steel construction bridge truss welding set
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