Modified Layered-Sectional Analysis for Forensic Investigation

This paper describes a modification to the layered-sectional analysis approach which provides the engineer with a tool to assess structural behavior of concrete beams with localized damage, a problem not well suited to classical, closed form solutions. The modified layered-sectional analysis (MLSA) framework is applied to a forensic investigation case study in which two prestressed double-tee beams were exposed to a short duration, intense fire in a parking structure. The results of the MLSA are within 1% of the case study load test indicating that the MLSA could be a useful, computationally efficient tool for the investigating engineer to predict the post-fire serviceability and strength of damaged beams, and potentially eliminate the need for expensive load testing. A short parametric study is included for the research engineer interested in the MLSA applicability to predicting the post-damage behavior of non-standard materials such as Enhanced Sustainability Concrete (ESC).

• Record URL:
  • https://doi.org/10.1061/(ASCE)CF.1943-5509.0000583
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08873828
• Supplemental Notes:
  • © 2014 American Society of Civil Engineers.
• Authors:
  • McCoy, Brad C.
  • Seracino, Rudolf
  • Leming, Michael L.
• Publication Date: 2015-8

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: n.p.
• Serial:
  • Journal of Performance of Constructed Facilities
  • Volume: 29
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0887-3828
  • Serial URL: http://ascelibrary.org/toc/jpcfev/27/1

Subject/Index Terms

• TRT Terms: Beams; Case studies; Design engineering; Fire resistant materials; Forensic science; Laboratory tests; Load tests; Parking garages; Prestressed concrete; Structural health monitoring; T beams
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I30: Materials; I32: Concrete;

Filing Info

• Accession Number: 01523235
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Apr 24 2014 11:58AM