Post-Fire Damage Inspection of Concrete Structures Phase III – In-Situ Experimental Phase

Details

• Creators:
  Toscano, Tom ; Gerasimidis, Simos ; Civjan, Scott
• Corporate Creators:
  University of Massachusetts at Amherst. Transportation Center
• Contributors:
  Czach, John
• Corporate Contributors:
  Massachusetts. Department of Transportation. Office of Transportation Planning ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Cement
  • Fire prevention
  • Heat insulating materials
  • Tunnels
  • High temperature
  • Fire resistance
  • Steel structures
  • Heat transfer devices
  • Concrete structures
  • Field tests
  More +
• Publication/ Report Number:
  24-064
• Resource Type:
  Tech Report
• Geographical Coverage:
  Massachusetts ; United States
• Edition:
  Final Report October 2024 (Sept. 2024 - December 2024)
• Corporate Publisher:
  Massachusetts. Dept. of Transportation. Office of Transportation Planning
• Abstract:
  Cementitious fireproofing has become an essential technique for safeguarding tunnel infrastructure against fire-induced damage, principally by providing a thermal barrier between flexural members and a fire event. Although fireproofing is extensively employed across different sectors, its specific utilization and efficacy in tunnel scenarios is inadequately explored. This research examines the thermal performance of cementitious fireproofing applied to steel beams within tunnels under intense fire conditions, as specified by ASTM E119 standards. The study indicates that beams with fireproofing exhibit substantial temperature reductions, achieving up to a 50% decrease compared to unprotected beams, thus delaying thermal degradation effectively. The results highlight the significance of fireproofing in prolonging the time prior to reaching critical temperatures, consequently mitigating structural damage during fire exposure. Furthermore, partial fireproofing demonstrated to offer significant protection, underlining its utility in situations where complete coverage may not be practical. The study underscores the critical role of cementitious fireproofing in enhancing the fire resilience of tunnel structures and its significance in protecting vital infrastructure during fire incidents.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/79352/dot_79352_DS1.pdf
• File Type:
  [PDF - 13.75 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:107a9ca8c2ef52ea5b9196ed2b7f37c4d7fc694c115ae1edb17de62f878f519a6c9a6b0245f4ec07a29cd7d5c2551855abf3545a8963bf845cc3dbf957822610