施設群を対象とした建物外装の生涯修繕・更新費の推定と単年度投資額平準化手法に関する研究

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  • 大西 康伸
    熊本大学大学院自然科学研究科環境共生工学専攻　助教・博士（学術）
  • 位寄 和久
    熊本大学大学院自然科学研究科環境共生工学専攻　教授・工博
  • 柴田 洋希
    式会社)NTTファシリティーズ研究開発本部

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  • METHODS OF ESTIMATING EXTERIOR LIFE CYCLE REPAIR COST AND OPTIMIZING THE ANNUAL RENEWAL INVESTMENT FOR A GROUP OF FACILITIES

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In order to maintain the functions of buildings, it is necessary for the owner such as an enterprise to estimate all repair timings and repair costs in the life cycle of each building, and to keep the balance between the appropriation and the investment sum for repair of a group of buildings for each year by investment leveling. In this paper, we suggest the following. 1. Calculation methods for estimating the investment sum for repair for each year in the life cycle of a building. It is possible to calculate the life cycle repair cost of a group of buildings easily and accurately by applying these methods. 2. Some methods for leveling the repair cost of a group of buildings for each year in its life cycle, in view of avoiding various risks caused by delay of repair. As a result of evaluation of the investment leveling method, the leveling ratio, the reduction of repair cost, and certain other features of each method were clarified. We also suggested how an optimal method for investment leveling should be selected.

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