Dynamic response and critical temperature of a steel beam subjected to fire and subsequent impulsive loading
A method for analysis of steel beams to fire and impulsive loading is proposed. The method is based on the minimum principle of acceleration at finite deformation. A modified rigid-plastic formula of permanent deflection to impulsive loading is presented. The iso-damage curve on temperature-impulsive velocity plane is introduced to distinguish safe and unsafe areas.
steel beam fire impulsive load strain-rate effect temperature effect finite difference method