抄録
Air infiltration rate characteristics of exterior walls and some kinds of doors like an elevator door, a staircase door and a revolving door are indispensable to estimating the pressure distribution, the in-filtration rate through exterior walls and air flow in a building. 1. Air Tightness of Main Doors From results of pressurizing tests, authors proposed their practical characteristics equations, in consideration of Tamura's tests, as follows; 1. tight staircase door Q=150ΔP^<1/2> 2.elevator door Q=500ΔP^<1/2> 3. revolving door Q=170ΔP^<1/1.5> where, Q : flow rate (m^3/h),ΔP : pressure difference (kg/m^2) 2. Exterior wall Authors have developed the simple test method of evaluating exterior wall air tightness of actual tall office buildings, which utilizes buoyancy caused by stack effect instead of fans for prssurization. This method was applied to three tall buildings, whose walls were cast -in-place concrete, precast concrete panel and metallic curtain wall. Authors have classified exterior wall air tightness as follows; a. tight wall Q=0.72ΔP^<1/1.5>(m^3/h・m^2) b.average wall Q=1.44ΔP^<1/1.5>(m^3/h・m^2) c. loose wall Q=2.88ΔP^<1/1.5>(m^3/h・m^2) And tested exterior walls have been tentatively classified as follows; a.Cast-in-place RC construction…tight to average b.S or SRC construction Metallic curtain wall…average to loose PC panel…loose
