Method for designing rolled H-section steel and rolled H-section steel

摘要

The design method of this rolled H-section steel is obtained by dividing the value obtained by dividing the peripheral moment Lx around the strong axis by the outer peripheral length Lp in the cross-sectional shape when viewed in a cross section perpendicular to the material axis direction, and the surface treatment economics Ix / Lp When the area of the cross-sectional shape is S, the height dimension H from the upper flange to the lower flange, the width dimension W of each of the upper flange and the lower flange, and the web so as to satisfy a predetermined relational expression The plate thickness tw of each of the upper flange and the lower flange is set.