Screen Wall Fire Resistance Investigation

The assessment of fire resistance for building constructions has been carried out by the solution heat engineering problem heating up structures under conditions non-stationary exposure with standard conditions. finite element method is used as method. Numerical simulation considered was using Ansys Mechanical computer complex, which allows a thermal design to be calculated on basis its software model. resulting functional dependence determining actual Pf depending thickness sheets δ outer skin made basalt fire-proof material, well geometric parameters protective screen (δ) required from condition compliance requirements constructive safety (Pf > Preq). Experimental studies determine membrane wall showed that an increase in temperature unheated surface vs. structure prior testing more than 180° С (195°С) occurs not earlier 31 min. Upon reaching critical temperatures independing thickness, limits REI 30-REI 120 are reached.