建築構造物のライフサイクルデザインに関する研究: 不確定性のライフサイクル評価へ及ぼす影響

摘要

近年の地球環境問題の深刻化に伴い，建築分野においても持続 可能な発展を援護する資源の用い方をすべきであるという認識が 高まっている。日本建築学会が提唱する「百年建築」はこの流れに 沿ったものである。このように，従来の建築構造物の設計にお いて用いられてきた，初期投資費用の多寡のみに偏重しない，現在 および将来に亘って経済的かつ環境配慮に優れたものを追求する新 しいパラダイムが求められている。%Recently, the environmental impact has been required to be explicitly taken into account in a life cycle design of building structures besides the initial economical efficiency, which has been ordinarily required up to the present days. Consequently, it is important not only to design the building structures so as to be safe as well as economical at the initial stage of completion of the building but also to pay attention and take into account the total behaviors of the designed and constructed building structures during all stages of their life cycles. The former paper by the authors has proposed the way to deal with the life cycle design of building structures with consideration of a hierarchy according to the ranks of building construction systems by using genetic algorithms as the optimization scheme with respect to both ecology and economy for evaluations. Present paper proposes the way to realize the life cycle evaluation of building structures with consideration of the uncertainties in repair cycles.