SIMULATION STUDY ON THE EFFECT OF INSULATION ON INTERIOR STRUCTURAL PARTS OF SUPER HIGH-RISE RESIDENCES

摘要

日本の東京、大阪、福岡などの大都市圏では、超高層住宅の着工 数が急速に増えており、超高層住宅における省エネルギー対策が急 務である。一方、現在、日本の集合住宅では、外断熱が使われる傾 向にあるが、間欠空調が主流の日本では、熱容量の高い躯体が室内 側にあることは、省エネの観点で、問題があると考えられる。特に、 超高層住宅の場合、躯体熱容量の高いコンクリートの躯体量が－般 の集合住宅よりも多く（例えば、中層の集合住宅の柱の太さが0．6m に対して、超高層住宅の柱の太さが1mになる場合もある。）、躯体 が住戸内熱環境に与える影響は、中層の集合住宅よりも大きいと考 えられる。%We examined the impact of air-conditioning loads (hereinafter referred to as AC loads) on the interior structural parts and the AC-usage patterns of super-high-rise residences. We considered different building orientations, structures, and insulation methods. We used the dynamic simulation software THERB (simulation of the thermal environment of residential buildings). It can estimate the temperature, humidity, sensible temperature, and heating/cooling load for multiple buildings. Super-high-rise residences have more structural components such as pillars and beams than do ordinary apartment buildings. The skeleton is generally made of concrete and steel, which have high thermal-storage capacities. The thermal-storage capacity of super-high-rise residences is considered to have a larger impact on the AC load and thermal comfort than that of ordinary residences. We show that the AC load of super-high-rise units would be reduced by installing insulation on the surfaces of interior walls that are not usually insulated in Japan.