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The Anatomy of Iron: Lessons from the Edge of Structural Failure

Key Insights
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  • Structural failures often result from the intersection of technical design flaws and human/managerial oversights during construction and maintenance
  • Temporary support systems during construction are as critical as the final structure, yet often receive inadequate attention
  • Steel’s apparent strength can mask brittleness under extreme conditions like earthquakes, requiring rigorous testing beyond theoretical calculations
  • Institutional memory loss and deferred maintenance create silent vulnerabilities that accumulate over decades
  • Redundancy in structural systems provides essential safety margins against both design errors and unexpected impacts

References
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  1. Nastar, N., & Liu, R. (Eds.). (2019). Failure Case Studies: Steel Structures. American Society of Civil Engineers.
  2. West Gate Bridge Royal Commission. (1971). Report of royal commission into the failure of West Gate Bridge. C. H. Rixon.
  3. Federal Emergency Management Agency. (2000). Recommended seismic design criteria for new steel moment-frame buildings (FEMA 350). FEMA.
  4. National Transportation Safety Board. (2006). Passenger vehicle collision with a fallen overhead bridge girder, Golden, Colorado, May 15, 2004 (NTSB/HAB-06-01). NTSB.
  5. National Transportation Safety Board. (2008). Collapse of I-35W highway bridge, Minneapolis, MN, August 1, 2007 (NTSB/HAR-08/03). NTSB.
  6. Wiss, Janney, Elstner Associates. (2008). David L. Lawrence Convention Center: Investigation of the 5 February 2007 collapse. WJE.
  7. Elliot Lake Inquiry. (2014). Report of the Elliot Lake commission of inquiry. Queen’s Printer for Ontario.
  8. National Transportation Safety Board. (2014). Collapse of the Interstate 5 Skagit River Bridge following a strike by an oversize combination vehicle, Mount Vernon, Washington, May 23, 2013 (NTSB/HAR-14/01). NTSB.
  9. Stark, T. D., et al. (2016). I-5 Skagit River Bridge collapse review. Journal of Performance of Constructed Facilities, 30(6).
  10. Delatte, N. J. (2009). Beyond failure: Forensic case studies for engineers. ASCE.