LimitState:RING Case Study: Three Span Bridge
A preliminary assessment was carried out on this UK highway bridge using LimitState:RING.
In advance of performing an intrusive investigation, a variety of scenarios were explored, including a case where masonry backing material was present above the piers (commonly encountered in multi-span bridges).
In this case the critical failure mechanism involved two spans. This clearly demonstrates that it is potentially unsafe to analyse the bridges as a series of single spans simply because the piers are deemed to be 'stocky' (as advocated in some assessment codes).