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Extreme Load Combinations: A Survey of State Bridge Engineers

G.C. Lee, Z. Liang, J.J. Shen and J.S. O'Connor

MCEER-11-0007 | 10/14/2011 | 152 pages

About the Report:

TOC: The table of contents is provided.

Notes: To learn more about MCEER's research on multiple hazard design for highway bridges, click here.

Keywords: Multi-hazard load and resistance factor design (MH-LRFD) framework. Bridges. Surveys. Highway infrastructure. Cascading events. Design limit state equations. Scour. Seismic loads. Vessel collision. Wind loads. Vehicular collision. Fire.

Abstract: A survey on multi-hazard bridge design was sent to state bridge engineers to obtain their opinions on the importance of potential extreme hazard loads and their combinations, including cascading events. A Multi-Hazard Design Workshop was organized to review, interpret and disseminate the survey results to the participants, and to further discuss the potential issues in the development of a multi-hazard load and resistance factor design (MH-LRFD) framework. In accordance with the results from both the survey and the workshop, the goal of the MCEER project is to establish a MH-LRFD framework, together with the development of several selected design limit state equations to illustrate the principles and methodologies of the framework.