Hussam Mahmoud
Associate Professor and Director
Structural Laboratory, Department of Civil and Environmental Engineering
Colorado State University, USA
Title: Advancements in Steel Buildings – From Accurate Prediction of Performance to Life-Cycle Evaluation and Resilience Assessment
Biography
Biography: Hussam Mahmoud
Abstract
Performance-based engineering has recently evolved from its basic concept of defining performance objectives to prevent structural collapse, with acceptable high level of damage, to minimizing losses without compromising on performance. However, for further refinement of the concept of performance-based design (PBD) and proper extension of PBD to resilience assessment, advanced fracture and collapse simulations as well as novel assessment frameworks are needed. This need is essential to allow for a paradigm shift in performance where minimum life-cycle cost can be realized and reduction in repair and recovery time after major events can be achieved. In this presentation, advancements in failure and collapse analysis and assessment methods for steel connections and buildings under extreme loads will be highlighted. In addition, newly devised probabilistic frameworks will be presented and utilized with the advanced failure and collapse simulation results for minimizing life-cycle cost as well as maximizing resilience through reducing losses and subsequent repair and functionality recovery time after major hazards. The life-cycle framework, accounting for socio-economic losses, will be demonstrated through multi-hazard assessment of steel buildings under uncorrelated seismic and wind hazards. The repair and functionality recovery framework will be demonstrated through resilience evaluation of a steel hospital following a scenario-based earthquake event while accounting for socio-economic losses as well as interdependency between the hospital and other essential community lifelines