Welcome to the web site for Dimitrios Lignos’ research group. Our work focuses on the development of performance-based assessment techniques and use of integrated experimental and analytical methods for seismic design and evaluation of structural systems. We currently investigate the collapse margins of conventional and high performance structural systems subjected to extreme earthquake loading. Recent work focuses on the development of rapid earthquake damage assessment techniques of infrastructure facilities, and the effect of welding procedures on heavy build-up members and high strength steel for the seismic and blast design of tall buildings. Of particular interest is the seismic design and evaluation of steel beam-columns, the evaluation of cumulative damage effects on steel beam-to-column connections and the development of simulation models for performance-based evaluation of conventional and high performance steel frame structures.

Recent News

03/01/2013: Dimitrios Lignos gave a presentation related to “predictive equations for cyclic inelastic buckling and fracture of steel braces” during the 10th International Conference on Urban Earthquake Engineering (10th CUEE) in Tokyo, Japan.
02/28/2013: Dimitrios Lignos gave an invited lecture for collapse quantification of steel structures at the Futtsu Research Laboratory of Nippon Steel and Sumitomo Metal Corporation in Japan.
02/18/2013: Congratulations to Emre Karamanci for completing his M.Eng Thesis with title, “Collapse Assessment and Performance-Based Evaluation Techniques for Concentrically Braced Frames Designed in Seismic Regions”. Emre will next join DPHV Structural Consultants to work as a Junior Structural Engineer.
12/20/2012: Dimitrios Lignos received the ASCE Outstanding Reviewer Award 2012 in recognition of outstanding service as a reviewer for the American Society of Civil Engineers (ASCE), Journal of Structural Engineering.