The current approach for evaluating fire resistance of prestressed concrete (PC) members is through prescriptive-based methods and this approach has several drawbacks. To overcome these drawbacks, a performance-based methodology is applied to evaluate the fire resistance of PC beams under realistic fire, loading, and restraint scenarios. A numerical analysis is carried out to study the effect of various factors governing the fire resistance of PC double T-beams. In the analysis, high-temperature material properties, various load and restraint levels, and material and geometric nonlinearities are accounted for, as well as realistic criteria applied to determine failure. Results from the analysis indicate that fire scenario, load level, and failure criterion have a significant influence on the fire resistance of PC double T-beams. The steps involved in undertaking a performance-based fire design are outlined.
ACI Committee 216 (ACI 216) . Standard method for determining fire resistance of concrete masonry construction assemblies . Farmington Hills, MI: American Concrete Institute, 2007.
2.
ASTM E119-08.Standard methods of fire test of building construction and material. Conshohoken, PA : American Society for Testing and Materials International , 2008.
3.
Woods H.Research on fire resistance of prestressed concrete. Journal of Structural Engineering1960; Vol. 86: 53-56, No. 11.
4.
Gustaferro AH and Carlson CCAn interpretation of results of fire tests of prestressed concrete building components. PCI Journal1962; Vol. 7: 14-43.
5.
Selvaggio SL and Carlson CCEffect of restraint on fire resistance of prestressed concrete, ASTM Special Technical Publication 1164. Conshohoken, PA: American Society for Testing and Materials International, 1963.
6.
Selvaggio SL and Carlson CCFire resistance of prestressed concrete beams study: influence of aggregate and load intensity. PCI Journal1964; Vol. 6: 10-25, No. 4.
7.
Abrams MS, Gustaferro AH and Salse EAB.Fire tests of concrete joist floors and roofs, Research and Development Bulletin 006B. Skokie, IL: Portland Concrete Association, 1971.
8.
Abrams MS and Gustaferro AHFire endurance of prestressed concrete unit coated with spray-applied insulation . PCI Journal1972; Vol. 17: 82-103, No. 1.
9.
Lin TD, Gustagerro AH and Abrams MSFire endurance of continuous reinforced concrete beams, Research and Development Bulletin 072.01B. Skokie, IL: Portland Concrete Association, 1981.
10.
Franssen JM and Bruls A.Design and tests of prestressed concrete beams. In: Proceedings of 5th International Symposium on Fire Safety Science. London: International Association for Fire Safety Science , 1997 , pp.1081-1092.
11.
ISO 834.Fire resistance tests - elements of building construction. Geneva, Switzerland: International Organization for Standardization, 1975.
12.
Anderson NE and Laurisden DHTT-roof slabs, Technical Report X52650 Part 1. Danish Institute of Fire Technology: Copenhagen, 1999.
13.
Boon J. and Monnier T.Calculation of the fire resistance of prestressed concrete beams. HERON1976; Vol. 21: 37-44, No. 1.
14.
Franssen JM, Kodur VR and Mason J.User manual for SAFIR: a computer program for analysis of structures subjected to fire. Liege, Belgium: University of Liege, 2004.
15.
Eurocode 2 (EC2): Design of concrete structures. ENV 1992-1-2: General Rules - Structural Fire Design. Brussels, Belgium: European Committee for Standardization , 2004.
16.
Fellinger JHH, Stark JWB and Walraven JCBond model for prestressed strands in fire exposed concrete. In: Proceedings of International Conference on High Performance Materials in Bridges. Hawaii: Kona , 2001, pp.21-33.
17.
DIANA v8 User’s Manual.Delft. The Netherlands: TNO, 2000.
18.
PCI Industry Handbook Committee.PCI design handbook: precast and prestressed concrete. Chicago, IL : Precast/Prestressed Concrete Institute, 2004.
19.
ASCE/SEI/SFPE 29-05Standard calculation methods for structural fire protection. Reston, VA: American Society of Civil Engineers, 2007.
20.
ICC.International building code. Falls Church, VA: International Code Council, 2004.
21.
CAN3-D-2.10.Code for the design of concrete structures for buildings. Rexdale : Canadian Standards Association, 2005.
22.
Cpci.Design manual: precast and prestressed concrete. Ottawa, Canada: Canadian Precast and Prestressed Concrete Institute, 2007 .
23.
Franssen JMSAFIR applied to prestressed beams at ambient temperature. External prestressing in structures. Non-linear calculation tests of prestressed beams. Paris, France: Association Francaise pour la Construction , 1993, pp.67-73.
24.
UL Fire Resistance Directory, Online Certification Directory BXUV.J945-J947. Camas, WA : Underwriter’s Labortories Inc, 1996.
25.
Asce 7-05.Minimum design loads for buildings and other structures. Reston, VA: American Society of Civil Engineers, 2005.
26.
ASTM E1529-93.Standard test methods for determining effects of large hydrocarbon pool fires on structural members and assemblies. West Conshohocken, PA: American Society for Testing and Materials International, 1993.
27.
Eurocode 1 (EC1): Action on structures. ENV 1991-1-2: General actions - actions on structures exposed to fire. Brussels, Belgium: European Committee for Standardization, 2002.
28.
Feasey R. and Buchanan AHPost flash-over fires for structural design. Fire Safety Journal2002; Vol. 37: 83-105, No. 1.
29.
SFPE engineering standard on calculating fire exposures to structures . Bethesda, MD: Society of Fire Protection Engineers, 2011.
30.
Malhotra HLSpalling of concrete in fires, Technical Note No. 118. London: Construction Industry Research and Information Association, 1984.
31.
Phan LTFire performance of high-strength concrete: a report of the state-of-the-art , NIST Internal Report5934. Gaithersburg, MD: National Insitute of Standards and Technologoy, 1996.
32.
Magnusson SE and Thelandersson S.Temperature-time curves of complete process of fire development: theoretical study of wood fuel fires in enclosed spaces. Espoo, Finland: Civil Engineering and Building Construction Series65, Acta Polytechnica Scandanavca, 1970 , pp.1-181.
33.
Parkinson DL and Kodur VKR.Performance-based design of structural steel for fire conditions - a calculation methodology. International Journal of Steel Structures2007; Vol. 7: 219-226, No. 3.
