Application of rational methodology for evaluating fire resistance of concrete structures

• Autorzy: Kodur V. K. R. , Shakya A. M.
• Języki publikacji: EN

Abstrakty

EN

Current methods of evaluating fire resistance of concrete structures are mainly prescriptive in nature and developed utilizing data from standard fire tests. These methods may not yield realistic fire resistance, especially for new types of concrete, and geometric configurations subjected to realistic fire loading and restraint scenarios. Many of the drawbacks in current prescriptive approaches can be overcome through rational approaches for evaluating fire resistance. For undertaking such rational approaches, a nonlinear finite element based numerical model and input parameters namely, high temperature material constitutive models, realistic fire, load and support conditions data are required. In this paper, the applicability of rational approach for evaluating fire resistance is illustrated through a case study on typical prestressed concrete hollowcore slabs. Results from the study clearly show that rational approaches for fire resistance evaluation yields higher fire resistance than that obtained through prescriptive based approaches.

Słowa kluczowe

EN

concrete structure; fire resistance; evaluation; methodology; rational approach

PL

konstrukcja betonowa; odporność ogniowa; ocena; metodologia; podejście racjonalne

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Materiały Budowlane
• Rocznik: 2014
• Tom: nr 10
• Strony: 82--87
• Opis fizyczny: Bibliogr. 31 poz., il.

Twórcy

autor

Kodur V. K. R.

• Department of Civil and Environmental Engineering, Michigan State University, USA

autor

Shakya A. M.

• Department of Civil and Environmental Engineering, Michigan State University, USA

Bibliografia

• [1] ACI 216.1-07. Code requirements for determining fire resistance of concrete and masonry construction assemblies. Farmington, MI: American Concrete Institute; 2007.
• [2] PCI. PCI Design Handbook. 7th ed. Chicago, IL: Precast Prestressed Concrete Institute; 2010.
• [3] PCI. Design for Fire Resistance of Precast/Prestressed Concrete. vol. MNL-124-11. 3rd ed. 2011.
• [4] Eurocode 2. Design of concrete structures, Part 1-2: General rules-structural fire design. ENV 1992-1-2. UK: CEN: European Committee for Standardization; 2004.
• [5] AS 3600. Concrete Structures. Sydney,Australia: Australian Standard AS3600-2001; 2001.
• [6] AS/NZS. AS/NZS 1170: 2002. Structural design actions. Wellington, New Zealand: Standards New Zealand; 2002.
• [7] NRC/CNRC. National Building Code of Canada. vol. 1. Vancouver, Canada: National Research Council Canada; 2010.
• [8] Kodur VKR, Phan L. Critical factors governing the fire performance of high strength concrete systems. Fire Safety Journal 2007; 42: 482–8. doi: 10.1016/j. firesaf. 2006.10.006.
• [9] Kodur VKR, Hatinger N. A performance-based approach for evaluating fire resistance of prestressed concrete double T beams. Journal of Fire Protection Engineering 2011; 21: 185 – 222.
• [10] Kodur VKR, Harmathy TZ. Properties of building materials. Section 1, Chapter 10. SFPE handbook of fire protection engineering. 4th ed., Bethesda, MD: Society of Fire Protection Engineers; 2012.
• [11] Ali F, Nadjai A, Silcock G, Abu-Tair A. Outcomes of a major research on fire resistance of concrete columns. Fire Safety Journal 2004; 39: 433–45. doi: 10.1016/j. firesaf.2004.02.004.
• [12] Bailey C. Holistic behaviour of concrete buildings in fire. Proceedings of the ICE – Structures and Buildings 2002; 152: 199–212. doi: 10.1680/stbu. 2002.152.3.199.
• [13] Kodur VKR, McGrath R. Effect of silica fume and lateral confinement on fire endurance of high strength concrete columns. Can J Civ Eng 2006; 33: 93–102. doi: 10.1139/l05-089.
• [14] Kodur VKR. Spalling in High Strength Concrete Exposed to Fire: Concerns, Causes, Critical Parameters and Cures. Advanced Technology in Structural Engineering 2000: 1–9. doi: 10.1061/40492 (2000) 180.
• [15] Kodur VKR, McGrath R. Performance of High Strength Concrete Columns Under Severe Fire Conditions. Proceedings Third International Conference on Concrete Under Severe Conditions, Vancouver, BC, Canada,: 2001, p. pp. 254 – 68.
• [16] Kodur VKR, Khaliq W. Effect of temperature on thermal properties of different types of high-strength concrete. Journal of Materials in Civil Engineering 2011; 23: 793–801.
• [17] Kodur VKR, McGrath R. Fire Endurance of High Strength Concrete Columns. Fire Technology 2003; 39: 73–87. doi: 10.1023/A:1021731327822.
• [18] Kodur V, Cheng F, Wang T, Sultan M. Effect of Strength and Fiber Reinforcement on Fire Resistance of High-Strength Concrete Columns. Journal of Structural Engineering 2003; 129: 253–9. doi: 10.1061/(ASCE) 0733-9445 (2003) 129: 2 (253).
• [19] Kodur VKR. Fiber-Reinforced Concrete for Enhancing the Structural Fire Resistance of Columns. Fiber-Structural Applications of Fiber-Reinforced Concrete, ACI SP-182; 1999, p. pp. 215 – 34.
• [20] Bilodeau A, Malhotra VM, Hoff GC. Hydrocarbon fire resistance of high strength normal weight and light weight concrete incorporating polypropylene fibres. International symposium on high performance and reactive powder concrete, Sherbrooke, Canada,: 1998.
• [21] Danielsen U. Marine Concrete Structures Exposed to Hydrocarbon Fires. The Norwegian Fire Research Institute; 1997.
• [22] Rahman MK, Baluch MH, Said MK, Shazali MA. Flexural and Shear Strength of Prestressed Precast Hollow-Core Slabs. Arab J Sci Eng 2012; 37: 443–55. doi: 10.1007/s13369-012-0175-8.
• [23] ASTM. Standard test methods for fire tests of building construction and materials. Test Method E119.West Conshohocken, PA: American Society for Testing and Materials; 2011.
• [24] BS 476–20. Fire tests on building materials and structure – part 20: method for determination of the fire resistance of elements of construction. Brussels, Belgium: CEN: European Committee for Standardization; 1987.
• [25] International Standard (E). Fire resistance tests: Elements of building construction. Part 1: General Requirements. ISO834-1-1999. Geneva, Switzerland: International Organization for Standardization; 1999.
• [26] ANSYS. Finite element computer code. ANSYS, Inc.; 2014.
• [27] Kodur VKR, Shakya AM. Modeling the response of precast prestressed concrete hollowcore slabs exposed to fire. PCI Journal 2014; 59.
• [28] Willam K, Warnke E. Constitutive model for the triaxial behavior of concrete. International Association for Bridge and Structural Engineering, Bergamo, Italy: 1975.
• [29] Shakya AM, Kodur VKR. Performance of prestressed concrete hollowcore slabs under standard and design fire exposure. PCI Convention and National Bridge Conference, National Harbor, MD: Prestressed Concrete Institute; 2014.
• [30] Dwaikat MB, Kodur VKR. A numerical approach for modeling the fire induced restraint effects in reinforced concrete beams. Fire Safety Journal n. d.; 43: 291 – 307.
• [31] Kodur VKR, Dwaikat MMS. Effect of high temperature creep on the fire response of restrained steel beams. Mater Struct 2010; 43: 1327 – 41. doi: 10.1617/s11527-010-9583-y.