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ROLLED H-SHAPED STEEL AND COMPOSITE BEAM
To provide a rolled H-shaped steel capable of reducing its weight while securing properties such as flexural rigidity and flexural strength.SOLUTION: A rolled H-shaped steel 10 with uniaxial symmetric cross section has an upper flange 12 and a lower flange, which have the same width and different thickness, and a web. The rolled H-shaped steel satisfies a cross-sectional shape dimension and a strength shown in following 1) to 5), where an outer height is H; a width of the upper flange and the lower flange is B; a web thickness is t1; an upper flange thickness is t21; a lower flange thickness is t22; an inner height is d (=H-t21-t22); a design strength of a steel material is F; and Young's modulus of a steel material is E, and a tensile strength is 400-670 N/mm2. 1) 2.4×(E/F)1/2<2.2, 4) (0.48B/d)×(E/F)1/2<(2B/d)×(E/F)1/2, 5) 235≤F≤440.SELECTED DRAWING: Figure 3
【課題】曲げ剛性や曲げ耐力といった性能を確保しつつ、重量を低減できる圧延H形鋼を提供する。【解決手段】幅が同じで厚さが異なる上フランジ12及び下フランジと、ウェブとを有する一軸対称断面の圧延H形鋼10であって、外法高さをH、上フランジ及び下フランジの幅をB、ウェブの厚さをt1、上フランジの厚さをt21、下フランジの厚さをt22、内法高さをd(=H-t21-t22)、鋼材の設計基準強度をF、鋼材のヤング係数をEとした場合に、以下の1)〜5)に示す断面形状寸法及び強度を満たし、かつ引張強さが400〜670N/mm2とする。1)2.4×(E/F)1/2<d/t1≦4.1×(E/F)1/2、2)t1≦t21<t22、3)t22/t21<2.2、4)(0.48B/d)×(E/F)1/2<B/(2×t22)<(2B/d)×(E/F)1/2、5)235≦F≦440【選択図】図3
ROLLED H-SHAPED STEEL AND COMPOSITE BEAM
To provide a rolled H-shaped steel capable of reducing its weight while securing properties such as flexural rigidity and flexural strength.SOLUTION: A rolled H-shaped steel 10 with uniaxial symmetric cross section has an upper flange 12 and a lower flange, which have the same width and different thickness, and a web. The rolled H-shaped steel satisfies a cross-sectional shape dimension and a strength shown in following 1) to 5), where an outer height is H; a width of the upper flange and the lower flange is B; a web thickness is t1; an upper flange thickness is t21; a lower flange thickness is t22; an inner height is d (=H-t21-t22); a design strength of a steel material is F; and Young's modulus of a steel material is E, and a tensile strength is 400-670 N/mm2. 1) 2.4×(E/F)1/2<2.2, 4) (0.48B/d)×(E/F)1/2<(2B/d)×(E/F)1/2, 5) 235≤F≤440.SELECTED DRAWING: Figure 3
【課題】曲げ剛性や曲げ耐力といった性能を確保しつつ、重量を低減できる圧延H形鋼を提供する。【解決手段】幅が同じで厚さが異なる上フランジ12及び下フランジと、ウェブとを有する一軸対称断面の圧延H形鋼10であって、外法高さをH、上フランジ及び下フランジの幅をB、ウェブの厚さをt1、上フランジの厚さをt21、下フランジの厚さをt22、内法高さをd(=H-t21-t22)、鋼材の設計基準強度をF、鋼材のヤング係数をEとした場合に、以下の1)〜5)に示す断面形状寸法及び強度を満たし、かつ引張強さが400〜670N/mm2とする。1)2.4×(E/F)1/2<d/t1≦4.1×(E/F)1/2、2)t1≦t21<t22、3)t22/t21<2.2、4)(0.48B/d)×(E/F)1/2<B/(2×t22)<(2B/d)×(E/F)1/2、5)235≦F≦440【選択図】図3
ROLLED H-SHAPED STEEL AND COMPOSITE BEAM
圧延H形鋼及び合成梁
KUWATA RYOHEI (Autor:in) / KITAOKA SATOSHI (Autor:in) / KIMURA KEI (Autor:in) / ICHINOHE YASUO (Autor:in) / TERASAWA HIROOKI (Autor:in)
24.09.2020
Patent
Elektronische Ressource
Japanisch
Europäisches Patentamt | 2019
|Europäisches Patentamt | 2018
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