| Summary: | 博士 === 國立臺灣科技大學 === 建築系 === 101 === This study examined the smoke leakage control of firestops using various filling materials with different densities and construction methods. Realistic smoke leakage control was investigated using actual-scale through-penetration firestop models installed in a curtain wall and air leakage measurement units. The smoke leakage control of firestops with various linear openings, temperatures, and firestop filling thicknesses was measured. When layers were filled with mineral wool, the leakage volume flow rate at a density of 80 kg/m3 was reduced by about 8%–13% to that at density of 60 kg/m3. Regardless of the density level, filling mineral wool in horizontal layers resulted in a leakage volume flow rate at a moderate temperature (200±20°C) that was 39%–42% of the leakage volume flow rate at room temperature. However, if vertical layers were used, the leakage volume flow rate of the mineral wool at a moderate temperature was about 45%–55% that at room temperature. The results indicate that filling firestops in horizontal layers is more effective than filling them in vertical layers in terms of smoke leakage control. At both room and moderate temperatures, horizontal firestop fillings were able to prevent the spread of smoke.
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