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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 biaxial symmetric cross section has an upper flange 12, a lower flange 14 and a web 16. The rolled H-shaped steel satisfies a cross-sectional shape dimension and a strength shown in following 1) to 3), where an outer height is H; a width of the upper flange 12 and the lower flange 14 is B; a thickness of the web 16 is t1; a thickness of the upper flange 12 and the lower flange 14 is t2; an inner height is d (=H-2×t2); a design strength of a steel material is F; and Young's modulus of a steel material is E, and tensile strength is 400-670 N/mm2. 1) 1.35×1100/F1/2
【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】上フランジ12、下フランジ14、及び、ウェブ16を有する二軸対称断面の圧延H形鋼10であって、外法高さをH、上フランジ12及び下フランジ14の幅をB、ウェブ16の厚さをt1、上フランジ12及び下フランジ14の厚さをt2、内法高さをd(=H-2×t2)、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)〜3)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)1.35×1100/F1/2<d/t1≦4.1×(E/F)1/2、2)6.0≦B/(2×t2)≦11.1、3)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 biaxial symmetric cross section has an upper flange 12, a lower flange 14 and a web 16. The rolled H-shaped steel satisfies a cross-sectional shape dimension and a strength shown in following 1) to 3), where an outer height is H; a width of the upper flange 12 and the lower flange 14 is B; a thickness of the web 16 is t1; a thickness of the upper flange 12 and the lower flange 14 is t2; an inner height is d (=H-2×t2); a design strength of a steel material is F; and Young's modulus of a steel material is E, and tensile strength is 400-670 N/mm2. 1) 1.35×1100/F1/2
【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】上フランジ12、下フランジ14、及び、ウェブ16を有する二軸対称断面の圧延H形鋼10であって、外法高さをH、上フランジ12及び下フランジ14の幅をB、ウェブ16の厚さをt1、上フランジ12及び下フランジ14の厚さをt2、内法高さをd(=H-2×t2)、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)〜3)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)1.35×1100/F1/2<d/t1≦4.1×(E/F)1/2、2)6.0≦B/(2×t2)≦11.1、3)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 (author) / KITAOKA SATOSHI (author) / KIMURA KEI (author) / ICHINOHE YASUO (author) / TERASAWA HIROOKI (author)
2020-09-24
Patent
Electronic Resource
Japanese
European Patent Office | 2019
|European Patent Office | 2018
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