Volume 14, Number 8 (Transaction A: Civil Engineering 2016) | IJCE 2016, 14(8): 535-545 | Back to browse issues page


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Behnam B. On the Effect of Travelling Fire on the Stability of Seismic-damaged Large Reinforced Concrete Structures. IJCE. 2016; 14 (8) :535-545
URL: http://ijce.iust.ac.ir/article-1-1330-en.html

Abstract:   (1021 Views)

Observations and investigations have proved that using traditional fire curves such as stand-ard fire curves and natural fire curves should be limited to small/medium compartments. In addition, when using the traditional fire curves, a uniform temperature is assumed throughout the compartment. However, for large open compartments, assuming uniform temperature is not compatible with real fires. To overcome this limitation, a non-uniform fire method named as travelling fire is employed as an alternative. A study is performed here on a seismic-damaged large plan 3-story reinforced concrete structure designed to meet the life safety level of performance when exposed to a travelling fire. To draw a comparison, the structural fire analysis is also performed using the traditional methods. The results show a notable difference – while the fire resistance based on the travelling fire is around 91 minutes, it is around 140 minutes when based on a uniform temperature. This shows that the structure studied is more susceptible to failure when subjected to the non-uniform fire than the uniform fire.

     
Type of Study: Research Paper | Subject: Structure-Earthquake

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