The band-like support component null one for building construction it is superior in bend performance around

摘要

PROBLEM TO BE SOLVED: To remarkably improve flexural rigidity and bending yield strength by bringing webs of a pair of support member units, in which flanges are arranged on both ends of the webs and which have the same cross section, into contact with each other, and joining them by being dislocated in the width direction of the webs. ;SOLUTION: A single belt-like thin steel plate is bent, and first flanges 2 and 2 and second flanges 3 and 3 are continuously arranged in a bending shape at a right angle to webs 1 integrally with these in both end parts of the webs 1 and 1. Lips 6... are continuously arranged in a bending shape at a right angle integrally with these in tip parts of the respective flanges 2 and 3. A pair of support member units 4 and 4 composed of the same cross-sectional member constituted in this way, are brought into contact with each other so that the webs 1 are superposed on each other, and are arranged by being relatively dislocated in the width direction of the webs 1. They are fixed to each other by drilling tapping screws 7... or the like. Therefore, flexural rigidity and bending yield strength can be remarkably improved. A superposing length L of the mutual webs 1 is desirably set to (ϕW/10≤L≤W9/10ϕ) when a width of the webs 1 is denoted by W.;COPYRIGHT: (C)1998,JPO