• Aejaz Mushtaq Dar
• Dr. Rajesh Goyel
• Dr. Pooja Sharma
• Er. Mudasir Hussain Dar

Fire is a significant threat to the structural integrity of buildings. Depending on the architecture of the structure and the intensity and duration of the fire event, structural members may lose strength and stiffness eventually leading to collapse whether by crushing or flexural buckling. The focus of my project is on the behaviour and fire performance of reinforced-concrete short column under fire conditions. Finite element software ANSYS is used to perform the thermal analysis. The residual strength or axial load carrying capacity of columns under varying time-temperature curve is determined. The study is performed on columns of different cross-sections to investigate the effect of five parameters, namely the grade of concrete, grade of steel, percentage of reinforcement in column, concrete cover (clear) and column size. The residual strength based on various failure criteria is determined, and minimum strength is selected for a given fire rating. Four-sided fire exposure along with the ISO 834-1 standard fire curve is used to carry out the thermal analysis in ANSYS. It has been found that concrete cover is the most important factor effecting residual strength of columns. Increasing grade of concrete, grade of steel, or percentage reinforcement is effective in enhancing fire strength only for low temperatures of about 400OC. Increasing column size increases strength, however more concrete area is exposed to fore, and hence not effective at high temperatures.

"Study into the Behavior of Reinforced-Concrete Short Column under Fire Exposure Using ANSYS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.583-588, June-2019, Available :http://www.jetir.org/papers/JETIR1906523.pdf

"Study into the Behavior of Reinforced-Concrete Short Column under Fire Exposure Using ANSYS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp583-588, June-2019, Available at : http://www.jetir.org/papers/JETIR1906523.pdf