STEEL SUBSTRATE REINFORCING STRUCTURE, INNER MEMBER FOR USE THEREIN, AND INNER SUPPORT MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a steel substrate of a double structure, which is low in cost, easy to mount, contributes to a shortened construction period, and does not take up much space during transportation thereof.;SOLUTION: The steel substrate 1 is formed of a thin-plate lightweight section steel having a C-shaped cross section, and consists of a front surface portion 1a to which an internal board is stuck, a rear surface portion 1f opposed to the front surface portion 1a, and side surface portions 1b, 1d orthogonal to the front surface portion 1a and the rear surface portion 1f. The side surface portions 1b, 1d have formed thereon folded portions 1c, 1e obtained by folding edges of the side surface portions to the inside of the steel substrate 1. The steel substrate 1 has an inner member 2 arranged inside the front surface portion 1a in a longitudinal direction. The inner member has a band-shaped intermediate area 2a and both side ends 2b, 2b formed like an inverted vee in cross section and extending in the longitudinal direction. Both the side ends 2b, 2b of the inner member 2 have their lower edges supported by the folded portions 1c, 1e of the steel substrate 1, and their upper edges abutting on the front surface portion 1a of the steel substrate 1.;COPYRIGHT: (C)2008,JPO&INPIT