Analytical methods for determining fire resistance of concrete members

Abstract

Concrete structures have a reputation for excellent behavior in fires. Many reinforced concrete buildings that have experienced severe fires have been repaired and put back into use. Concrete is by nature noncombustible and has a low thermal conductivity. Concrete tends to remain in place during a fire, protecting the reinforcing steel, with the cool inner core continuing to carry the load. Catastrophic failures of reinforced concrete structures in fires are rare, but some occasionally occur [1].