scholarly journals Simulation and Study of Natural Fire in a Wide-Framed Multipurpose Hall with Steel Roof Trusses

10.14311/1097 ◽  
2009 ◽  
Vol 49 (1) ◽  
Author(s):  
D. Pada
Keyword(s):  
Structural Analysis ◽  
Fire Safety ◽  
Safety Concept ◽  
Natural Fire ◽  
Design Fire ◽  
Temperature Development ◽  
Design Fires ◽  
Structural Fire Safety ◽  
Steel Roof

In this case study, the structural fire safety of unprotected steel roof trusses in a wide-framed multipurpose hall was evaluated according to the natural fire safety concept. The design fires were simulated with FDS in order to determine the temperature development inside the hall. The temperature of the steel was calculated based on the results from the simulation and the structural analysis was carried out in Robot. It was established that the steel roof trusses could be left unprotected under certain conditions, however, a more violent design fire resulted in failure of the truss. 

The Influence of Fire Scenarios on the Structural Behaviour of Composite Steel-Concrete Buildings

2011 ◽  
Vol 82 ◽  
pp. 368-373 ◽  
Author(s):  
Emidio Nigro ◽  
Anna Ferraro ◽  
Giuseppe Cefarelli
Keyword(s):  
Fire Safety ◽  
Risk Mitigation ◽  
Correct Identification ◽  
Structural Behaviour ◽  
Natural Fire ◽  
Structural Fire ◽  
Concrete Buildings ◽  
Design Fire ◽  
Fire Scenarios ◽  
Composite Steel

Fire Safety Engineering can be defined as a multi-discipline based on the application of scientific and engineering principles to the effects of fire in order to reduce the loss of life and damage to property by quantifying the risks and hazards involved and provide an optimal solution to risk mitigation. The correct identification of fire scenarios is the central stage in the process of the structural fire design. A design fire scenario is the description of the spread of a particular fire with respect to time and space. In the process of identification of design fire scenarios for the structural fire safety check, all fires must be assessed realistically, choosing those most severe for the structural response. This paper is devoted to evaluate the influence of fire scenarios on the structural behaviour of composite steel-concrete buildings. In order to that, an office building subjected to different fire scenarios was considered. In particular the fire scenarios were defined by both standard fire (prescriptive approach) and natural fire (performance approach). Finally, a comparison between the prescriptive approach and the FSE approach is presented.

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