“Best of IBC” Webinar Series

The Best of IBC Webinar Series is a great way to preview the high quality technical content presented at the International Bridge Conference®.

Attendees can earn 1 pdh credit!

Virtual webinars are FREE to attend, but registration is required for pdh certification.

Inspection & Analysis

IBC 22-83: Evaluating Steel Bridge Details for Susceptibility to Constraint-Induced Fracture
Domenic Coletti, P.E., HDR, Raleigh, NC

CIF generally occurs in details featuring a high degree of constraint (leading to a high level of stress triaxiality) in combination with high levels of tensile stress (including residual stresses) and a notch-like or crack-like planar discontinuity approximately perpendicular to the primary flow of tensile stress. This presentation will provide a review of constraint-induced fracture (CIF) in steel bridges, including a simple procedure for evaluating steel bridge details for susceptibility to CIF.

IBC 22-84: Inspection of the World’s Longest Moveable Span, Ford Island Bridge, Pearl Harbor-Hickam, Hawaii
Amanda Schindhelm, P.E., Marine Solutions, Rosedale, MD

The Ford Island Bridge in Honolulu, Hawaii is the world’s longest moveable span. The floating moveable span retracts beneath the approach spans to open this important navigable waterway for the US Navy. The moveable section consists of a cellular concrete box pontoon and fracture critical steel transition spans. This paper provides a description of the bridge structure and discusses the specialized inspection techniques and maintenance challenges due to its unique design and sensitive location.