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Full Session without Abstracts

505302 - Stability Design Issues and Innovations of Steel Structures

Friday, April 26
11:00 AM - 12:30 PM
Location: Celebration 3-4

Sponsoring Committees: Structural Members (TAC Metals) and Cold-Formed Members (TAC Metals)
Format: Innovative Executive Session (IES)

The session covers design issues that have perplexed structural engineers including stiffness demand of braces used to control buckling of multiple parallel members, effect of bracing connection stiffness on the buckling strength, stability design of a column subjected to intermediate loads, recent innovations in stability analysis of cold-formed steel members, direct modelling of inelastic behavior of hot-rolled steel frames, connection stability and performance based design of cold-formed steel frames, among others. The session will provide structural engineers with the opportunities to clarify questions and doubts that they may have regarding the modern methods of structural analysis and design of hot-rolled and cold-formed steel frames, and to learn about recent innovations and their proper applications to the stability design of regular and irregular structures. Attendees of the session will also learn about available and acceptable methods of stability analysis and design, and their respective advantages and disadvantages. Presenters are as follows (alternating between hot-rolled and cold-formed steel structures):

1. “Head-Scratchers in Structural Stability” by Ron Ziemian.
2. “Innovations in Efficient Analysis of Cold-Formed Steel Member Stability - CUFSM 5” by Benjamin Schafer.
3. “Accuracy, Generality and Ease of Use” by Donald White.
4. “Connection Stability – What Are We Accounting for in Cold-Formed Steel Frames” by Perry Green.
5. “Sensitivity and Robustness Modeling the Stiffness Reduction up to the Ultimate Load Condition of Steel Frames” by Barry Rosson.
6. “Available Now for Innovators: Performance-Based Design of Cold-Formed Steel Framing Systems" by Cris Moen.
7. “Stability Design for Members and Bracing” by Todd Helwig.
8. “Clip Angle Design in Cold-Formed Steel Framing” by Cheng Yu.
9. “Stability Design of Steel Columns Subjected to Intermediate Gravity Loads” by Lip Teh.
10. (A cold-formed steel topic.)


 

Ronald D. Ziemian

Associate Dean
Bucknell University

Ron Ziemian is a Professor of Civil and Environmental Engineering and is an Associate Dean in the College of Engineering. Professor Ziemian earned his B.S. and M.Eng degrees in Civil and Environmental Engineering from Cornell University, and gained several years of industrial experience at Stone and Webster Engineering Corporation before returning to Cornell for his Ph.D. degree. He joined the Bucknell faculty in 1991, was awarded tenure in 1997, and achieved the rank of full professor in 2003. Professor Ziemian is a structural engineer who applies advanced methods of computational analysis toward developing a better understanding of the stability behavior of metal structures. His doctoral thesis research is credited as one of the foundational works in the application of modern methods of nonlinear analysis in the design of steel structures, for which he earned the American Society of Civil Engineers’ highest honor awarded for a technical paper; the ASCE Norman Medal (1994). His research has since progressed to include the development of the direct analysis method, and represents a body of work that continues to be of use to practitioners in the field, and has resulted in significant changes to U.S. steel and aluminum structural design specifications. As such, his scholarly work has been supported by the American institute of Steel Construction, the Steel Joist Institute, and the Aluminum Association, and he has been recognized with honors including the ASCE Shortridge Hardesty Award (2013), the AISC Special Achievement Award (2006), and Bucknell University’s Presidential Professorship (2010).

Presentation(s):

Send Email for Ronald Ziemian

Ronald D. Ziemian

Associate Dean
Bucknell University

Ron Ziemian is a Professor of Civil and Environmental Engineering and is an Associate Dean in the College of Engineering. Professor Ziemian earned his B.S. and M.Eng degrees in Civil and Environmental Engineering from Cornell University, and gained several years of industrial experience at Stone and Webster Engineering Corporation before returning to Cornell for his Ph.D. degree. He joined the Bucknell faculty in 1991, was awarded tenure in 1997, and achieved the rank of full professor in 2003. Professor Ziemian is a structural engineer who applies advanced methods of computational analysis toward developing a better understanding of the stability behavior of metal structures. His doctoral thesis research is credited as one of the foundational works in the application of modern methods of nonlinear analysis in the design of steel structures, for which he earned the American Society of Civil Engineers’ highest honor awarded for a technical paper; the ASCE Norman Medal (1994). His research has since progressed to include the development of the direct analysis method, and represents a body of work that continues to be of use to practitioners in the field, and has resulted in significant changes to U.S. steel and aluminum structural design specifications. As such, his scholarly work has been supported by the American institute of Steel Construction, the Steel Joist Institute, and the Aluminum Association, and he has been recognized with honors including the ASCE Shortridge Hardesty Award (2013), the AISC Special Achievement Award (2006), and Bucknell University’s Presidential Professorship (2010).

Presentation(s):

Send Email for Ronald Ziemian


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