| 摘要 |
PROBLEM TO BE SOLVED: To provide a grooved lightweight section steel that improves flexural rigidity and buckling yield strength of a structural member formed by making a pair of grooved lightweight section steels into a back-to-back state, and can achieve rational and economical design based on the magnitude of stress generated.SOLUTION: A grooved lightweight section steel 1 applying the present invention extends in a depth direction at a predetermined cross-sectional shape, and includes: a pair of flanges 2 extending to a width direction X; a web 3 extending in a height direction Y at the side of one side edge 2a of the width direction X of the pair of flanges 2; and an erection part 4 erected from the web 3 to the flange 2. In the web 3, any one or both ends of the height direction Y are disposed at intervals S from the flange 2 proximal to the end of the web 3 to the height direction Y. The erection part 4 extends at a slant so as to be separated from one side edge 2a of the width direction X of the flange 2 from the end of the web 3 to the flange 2, and is joined to the flange 2 by welding.SELECTED DRAWING: Figure 3 |
