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A platform for research: civil engineering, architecture and urbanism
Cold-formed steel centre-sheathed (mid-ply) shear walls of intermediate resistance
https://orcid.org/0000-0002-0804-0803
Abstract To enter the market for mid-rise buildings, cold-formed steel (CFS) framed steel sheathed shear walls need to resist seismic forces in excess of 60 kN/m. An innovative configuration in which the sheathing is placed at the mid-line of the framing was developed through a laboratory test program. These centre-sheathed shear walls provided a substantial increase in shear resistance, over four times that currently found in the AISI S400 Standard, as well as an increase in ductility. Nine additional shear walls subjected to asymmetric in-plane cyclic loading were investigated in this study. These walls reached intermediate shear resistances between 46.7 kN/m and 91.0 kN/m and could maintain this resistance beyond drift ratios of 4%. In addition, three tests were carried out on the bare frame to identify the shear capacity provided by the specially detailed perimeter frame. An updated equation-based model, including the frame effect, was proposed for predicting the ultimate shear strengths of these shear walls.
Highlights Innovative centre-sheathed (mid-ply) cold-formed steel framed shear wall system. Sheathing confined between framing members provides strength and ductility. Design –testing process followed to develop wall configuration. Shear resistance values far exceeding current limits were attained. Shear resistance was maintained at drift levels exceeding 6%.
Cold-formed steel centre-sheathed (mid-ply) shear walls of intermediate resistance
https://orcid.org/0000-0002-0804-0803
Abstract To enter the market for mid-rise buildings, cold-formed steel (CFS) framed steel sheathed shear walls need to resist seismic forces in excess of 60 kN/m. An innovative configuration in which the sheathing is placed at the mid-line of the framing was developed through a laboratory test program. These centre-sheathed shear walls provided a substantial increase in shear resistance, over four times that currently found in the AISI S400 Standard, as well as an increase in ductility. Nine additional shear walls subjected to asymmetric in-plane cyclic loading were investigated in this study. These walls reached intermediate shear resistances between 46.7 kN/m and 91.0 kN/m and could maintain this resistance beyond drift ratios of 4%. In addition, three tests were carried out on the bare frame to identify the shear capacity provided by the specially detailed perimeter frame. An updated equation-based model, including the frame effect, was proposed for predicting the ultimate shear strengths of these shear walls.
Highlights Innovative centre-sheathed (mid-ply) cold-formed steel framed shear wall system. Sheathing confined between framing members provides strength and ductility. Design –testing process followed to develop wall configuration. Shear resistance values far exceeding current limits were attained. Shear resistance was maintained at drift levels exceeding 6%.
Cold-formed steel centre-sheathed (mid-ply) shear walls of intermediate resistance
https://orcid.org/0000-0002-0804-0803
Abstract To enter the market for mid-rise buildings, cold-formed steel (CFS) framed steel sheathed shear walls need to resist seismic forces in excess of 60 kN/m. An innovative configuration in which the sheathing is placed at the mid-line of the framing was developed through a laboratory test program. These centre-sheathed shear walls provided a substantial increase in shear resistance, over four times that currently found in the AISI S400 Standard, as well as an increase in ductility. Nine additional shear walls subjected to asymmetric in-plane cyclic loading were investigated in this study. These walls reached intermediate shear resistances between 46.7 kN/m and 91.0 kN/m and could maintain this resistance beyond drift ratios of 4%. In addition, three tests were carried out on the bare frame to identify the shear capacity provided by the specially detailed perimeter frame. An updated equation-based model, including the frame effect, was proposed for predicting the ultimate shear strengths of these shear walls.
Highlights Innovative centre-sheathed (mid-ply) cold-formed steel framed shear wall system. Sheathing confined between framing members provides strength and ductility. Design –testing process followed to develop wall configuration. Shear resistance values far exceeding current limits were attained. Shear resistance was maintained at drift levels exceeding 6%.
Cold-formed steel centre-sheathed (mid-ply) shear walls of intermediate resistance
Wu, Jia Cheng (author) / Rogers, Colin A. (author)
Thin-Walled Structures ; 188
2023-05-04
Article (Journal)
Electronic Resource
English
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