Physics World Weekly Podcast
Baltimore bridge collapse: engineers explain how failures can be avoided
May 30, 2024
In this engaging conversation, engineers Erin Bell and Martin Wosnik from the University of New Hampshire delve into the tragic collapse of the Francis Scott Key Bridge. Bell, an expert in infrastructure safety, reveals the factors behind the disaster and shares insights on preventing future failures. Wosnik discusses the innovative Living Bridge Project, which transforms infrastructure into a renewable energy source. Together, they explore the vital intersection of engineering, safety, and sustainability in modern bridge design.
45:29
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Quick takeaways
- The collapse of the Francis Scott Key Bridge highlighted the need for updated vessel collision design codes and improved structural redundancy to prevent future disasters.
- The Living Bridge Project exemplifies innovative engineering by transforming bridges into multifunctional assets that generate tidal energy while enhancing structural monitoring capabilities.
Deep dives
Analysis of the Francis Scott Key Bridge Collapse
The Francis Scott Key Bridge collapse was primarily attributed to the collision with a large container ship, which was traveling at 8 knots when it struck. The bridge was designed with interdependent spans and lacked adequate pier protection, leading to a cascading failure upon impact. Historical comparisons were made to the Sunshine Skyway Bridge disaster in 1980, which prompted updates in vessel collision design codes. It became clear that the standards established in 1977, when the Key Bridge was built, were no longer sufficient given the increased size and weight of modern vessels.
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