Cold formed steel framing vs structural steel

Greene engineered a recent renovation to the structure and said that for the most part, the joists are still performing well. According to Chuck Greene, P.E., of Nolen Frisa Associates, the joists were adequate to carry the initial loads and spans, based on current analysis techniques. The walls were load bearing masonry, but the floor system was framed with double back-to-back cold-formed steel lipped channels. One of the first documented uses of cold-formed steel as a building material is the Virginia Baptist Hospital, constructed around 1925 in Lynchburg, Virginia. In the 1920s and 1930s, acceptance of cold-formed steel as a construction material was still limited because there was no adequate design standard and limited information on material use in building codes. The use of cold-formed steel members in building construction began in the 1850s in both the United States and Great Britain.

9 Hot-rolled versus cold-rolled steel and the influence of annealing.8.2 Connectors and fasteners in framing.7.1 Minimum material thickness recommended for welding connections.4 Common section profiles and applications.

Cold formed steel framing vs structural steel