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Structural Integrity Assessment of Reinforced Concrete (RC) Building Due to Fire Hazard
In view of urbanization and smart city initiatives of the government, multistoried RC buildings have become a favorite habitat. However, occurrence of fire hazard at any location/ building is totally unpredictable, can be resulted either as a primary event (short circuits, explosions etc.) or as a consequence to many major events, and become a source for causalities. Moreover, the effect of fire on structural components become detrimental for the survival of the structure, when subjected to a certain duration of time. Therefore, effect of fire on structural components can be estimated in terms of their duration of their resistance without loss of functionality to fire load. The lessons learnt from past-earthquake fire hazards resulted during Latur (1993), Kobe (1995) etc., clearly envisage the damages caused to RC buildings due to prolonged fire hazard on infrastructure. However, IS codes for design of RC buildings in particular, do not consider the fire resistance of building materials & structural components during analysis and design phase. Hence, it’s imminent to provide guidelines for fire-resistant design of structural components of any building to resist collapse capacity. Therefore, an RC building frame, designed as per IS 456:2000 has been analyzed for various fire scenarios to arrive at global collapse capacity. The modeling, design and analysis of existing hypothetical (G+3) reinforced concrete (RC) building frames has been carried out using the structural software SAP2000 program in accordance with IS 456: 2000.The modeling for fire load and the thermo-mechanical analysis of the entire building is performed using the SAFIR package along with inhouse spread sheet codes. Further, the behavioral patterns of structural components analyzed for different fire durations (i.e., 0, 30, and 60 min) specified by EN 1991-1-2 2002 and 1992-1-2 2004, clearly portray the fire resistance capability of Indian code designed building. The results obtained for the RC building model considered in this study, clearly envisage its structural integrity to withstand peak fire load of around 800–900 °C for 30 min duration without collapse.
Structural Integrity Assessment of Reinforced Concrete (RC) Building Due to Fire Hazard
In view of urbanization and smart city initiatives of the government, multistoried RC buildings have become a favorite habitat. However, occurrence of fire hazard at any location/ building is totally unpredictable, can be resulted either as a primary event (short circuits, explosions etc.) or as a consequence to many major events, and become a source for causalities. Moreover, the effect of fire on structural components become detrimental for the survival of the structure, when subjected to a certain duration of time. Therefore, effect of fire on structural components can be estimated in terms of their duration of their resistance without loss of functionality to fire load. The lessons learnt from past-earthquake fire hazards resulted during Latur (1993), Kobe (1995) etc., clearly envisage the damages caused to RC buildings due to prolonged fire hazard on infrastructure. However, IS codes for design of RC buildings in particular, do not consider the fire resistance of building materials & structural components during analysis and design phase. Hence, it’s imminent to provide guidelines for fire-resistant design of structural components of any building to resist collapse capacity. Therefore, an RC building frame, designed as per IS 456:2000 has been analyzed for various fire scenarios to arrive at global collapse capacity. The modeling, design and analysis of existing hypothetical (G+3) reinforced concrete (RC) building frames has been carried out using the structural software SAP2000 program in accordance with IS 456: 2000.The modeling for fire load and the thermo-mechanical analysis of the entire building is performed using the SAFIR package along with inhouse spread sheet codes. Further, the behavioral patterns of structural components analyzed for different fire durations (i.e., 0, 30, and 60 min) specified by EN 1991-1-2 2002 and 1992-1-2 2004, clearly portray the fire resistance capability of Indian code designed building. The results obtained for the RC building model considered in this study, clearly envisage its structural integrity to withstand peak fire load of around 800–900 °C for 30 min duration without collapse.
Structural Integrity Assessment of Reinforced Concrete (RC) Building Due to Fire Hazard
Lecture Notes in Civil Engineering
Goel, Manmohan Dass (editor) / Vyavahare, Arvind Y. (editor) / Khatri, Ashish P. (editor) / Sarmili, S. (author) / Srinath, G. (author) / Gopi Krishna, K. (author) / Akkaladevi, Rohith (author)
Structural Engineering Convention ; 2023 ; Nagpur, India
2024-10-26
10 pages
Article/Chapter (Book)
Electronic Resource
English
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