Year
2021
Degree Name
Doctor of Philosophy
Department
School of Civil, Mining, and Environmental Engineering
Abstract
This thesis presents design and experimental investigation on strap braced cold-formed steel shear panels and connections. The primary aim is to develop an efficient cold-formed steel shear panel system for mid-rise residential buildings in Australia. A total of seventeen full-scale shear panels were tested under monotonic pull load to iteratively optimize and improve the design. The test results presented in this thesis show that slotted straps made from locally available high strength cold-reduced steel sheets can be used to achieve ductile behaviour from the shear panels.
In addition, this thesis investigates the shear pull-out strength of a pneumatic driven nail connection between steel sheets that can replace the screws in shear panel for faster installation. The tested G300, G450 and G550 specimens had thicknesses ranging from 0.6 to 2.4 mm, connected together with 2.5 mm or 3.6 mm helically knurled nails. Based on the test results of 93 shear nailed connections failing in pull-out, the thesis proposes a design equation that is applicable to connections using helically knurled nails between steel sheets thinner than 2.9 mm. A group effect factor of 0.75 is suggested for serial nail connections based on the test results of 19 multiple nail connections. A resistance factor of 0.55 is recommended for use with the proposed equation for determining the pull-out strength of shear nailed connections in thin steel sheets.
Recommended Citation
Bhuiyan, Md Refat Ahmed, Tension Braces and Shear Connections in Australian Cold-Formed Steel Mid-rise Buildings, Doctor of Philosophy thesis, School of Civil, Mining, and Environmental Engineering, University of Wollongong, 2021. https://ro.uow.edu.au/theses1/1157
FoR codes (2008)
0905 CIVIL ENGINEERING, 1202 BUILDING, 1204 ENGINEERING DESIGN
Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.