STUDY ON FIRE RESISTANCE OF REINFORCED CONCRETE SLAB UNDER THE NEGATIVE BENDING MOMENT

Abstract

This paper describes experimental and analytical studies on the fire resistance of a reinforced concrete slab under the negative bending moment. As the result of fire resistance tests, it became clear that the reinforced concrete slab under the negative bending moment had the outstanding performance for the fire heating. The bar arrangement of main reinforcement and slab thickness influence the fire resistance greatly.The analysis result was well in agreement with the experimental results. Parameter study was performed and the influence of the bar arrangement and slab thickness on the fire resistance became clear.