EXPERIMENTAL STUDY ON BEHAVIOR OF FLOAT PLATE GLASSES IN EARLY OF FIRE

The tests of the glass exposed to radiant heat and the localized fires were conducted to clarify the behavior of the float plate glass in the early of fire phase. The main results are as follows. 1. The mean temperature difference between the part exposed to fires and the part shaded by window frame is affected by the size of the glass and the speed of heating. 2. The float plate glass put the safety film has the performance holding the broken piece during the phase when the early cracks occur. The pieces of glass fall out when the temperature of the glass surface on the film side reaches the critical value.By using these results, the case study for the float plate glass with the safety film faced the atrium was carried out.