This paper summarizes a laboratory based research program on blocked and double-sheathed cold-formed steel framed shear walls. The intent was to develop walls whose in-plane shear resistance exceeds that of configurations currently listed in the AISI S400 Standard. The results showed that the frame blocking can be used in the construction of walls whose resistance is at the limit of that found in AISI S400; however, the blocking will not adequately restrain the framing members if thicker sheathing is used. An approach was needed to minimize the effect of the eccentric loading caused by the sheathing and to account for the combination of axial compression and bending on the chord studs. Shear walls with steel sheathing placed on both sides of the framing demonstrated resistances up to twice those listed in AISI S400, without damage to the framing members, and similar ductility characteristics to previously tested CFS shear walls.
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