The current criteria that bridge designers and owners use for determining the fracture critical status of a steel bridge design are fundamentally based on assessing redundancy of the structure and its resistance to failure. However, there are no clear, concise, generally accepted, science-based methods of determining structural redundancy in a bridge structure and no consensus agreement of failure.
Part 1 of this series will look at current policy and future practices regarding fracture critical structures. This session all also feature one owner's perspective on two-girder bridge today and how they view the future.
Source: NASCC Year: 2017 Speaker(s): Rob Connor; Jamie Farris