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This chapter includes an analytical study of Marcy pedestrian bridge to highlight the
importance of lateral torsional stability during construction. The Marcy pedestrian
bridge failure scenario was an unusual case of a fatal bridge collapse that provided
changes in the governing codes (Corr 2009). This failure illustrates the importance of
consider...
Citations
... The Marcy Bridge collapsed in October 2002 during casting of the deck, shortly after placement of the wet concrete had passed mid-span. The failure was attributed to the lateral-torsional buckling of the steel tub girder [9]. Several bridge failures that occurred in the last half-century were due to underestimated design forces, as noted in the collapse of the Florida International University pedestrian bridge. ...
Building Information Modelling is receiving increasing attention as an emerging technology for enhancing the life‐cycle performance of facilities. The cooperation between all professionals involved in the construction chain allows to reproduce digital twins of the structures including information related to different disciplines, such as structural and architectural aspects. In this context, the use of Building Information Modelling, combined with an automatic tool to predict risk indices, could be particularly useful when dealing with existing bridges due to the significant structural deficiencies recently demonstrated by numerous bridge collapses worldwide. This paper explores the development of a BIM‐based procedure to bring greater value in the design, construction, maintenance, and inspection stages. The procedure is applied to existing bridges and it allows to estimate a structural risk prioritization class of bridges according to maintained activities, periodical inspections, structural detailing and modelling uncertainties. The automatic BIM‐based tool uses a workflow developed in Dynamo, and is able to automatically update the structural risk class and to provide warning if the structural safety index exceed defined thresholds.
