Continuing Education Credits Available – 1.5 PDH Credits
This webinar will discuss an alternative design approach, namely the “Direct Stiffness-Strength method” (DSSM) for the incorporation of the bracing effect of sheathing in the design of sheathed cold-formed steel (CFS) structural members. The motivation for this research is compiled from the research gap in appendix 2 of the latest American Iron and Steel Institute standard, which stated “New guidelines and procedures are expected in near future” for the sheathing braced design of CFS structural members.
The new DSSM approach presented is based on full-scale test results and individual sheathing screw connection test results previously published in the research articles of the authors. The test parameters investigated are different sheathing board types (to account for the performance of each sheathing type) and different dimensions of the CFS structural member cross-sections (to account for the member slenderness). A new set of empirical expressions are formulated to predict the stiffness and strength of the individual sheathing screw connections. This webinar will also present a simple two-step DSSM design example.
Presenter
Mahendrakumar Madhavan, Ph.D., P.E.
Indian Institute of Technology
Mahendrakumar Madhavan is a Professor in the Department of Civil Engineering, Indian Institute of Technology (IIT) Hyderabad, India. Prof. Madhavan teaches at both undergraduate and postgraduate levels, provides industry training by conducting short courses and seminars, assists practicing structural engineers by offering consultancy services, and leads the structural steel research group at IITH with the goal of enabling sustainable construction practices at home in India and around the globe. He obtained his Ph.D. from the University of Alabama in Birmingham, and a M.S. degree from The National University of Singapore, Singapore. Prior to joining IIT Hyderabad, Prof. Madhavan worked as a structural engineer at Alabama Power Company in Birmingham and is a registered professional engineer in Alabama.
Prof. Madhavan’s principal research interests lie in the area of physical testing of structural members and systems, numerical modeling through the use of commercially available finite element packages, and the development of new design methods for steel-intensive structures. He has published more than 50 peer-reviewed internationally reputed journals and holds membership in the “American Society of Civil Engineers (ASCE) Structural Engineering Institute (SEI) Technical Administrative Committee on Metals” and in “ASCE SEI Cold-Formed Steel Members Committee”. He is an Editorial board member of the Journal of Structures and is an Associate Editor for ASCE Journal of Structural Engineering. Prof. Madhavan is a Fellow of the American Society of Civil Engineers (ASCE), USA, a Fellow of the Institution of Civil Engineers (ICE), London, and is also the first Indian to be elected as a Fellow of ASCE’s Structural Engineering Institute (SEI).
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically