建設量と現存量の比較に基づく建物の寿命分布の試算

概要

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This paper presents mathematical model to describe building stock formation process using parameters of life distribution, and parameters quoted from statistical data on building construction activities in the past. Two kinds of data are used here. One is stock data based on property tax registration, which suggests the quantity of existing buildings. The other is flow data based on Building Construction Survey. Lack and contradictory factors in those statistical data are examined and modified. Then parameters of life distribution of constructed building are simulated by comparing integration of total floor area of survived buildings constructed in the past with the total area of actual existing building. The result of simulation shows that buildings constructed after 1945 have around 40 years average life. The figures of average life are almost equal observed in former surveys where quantities of existing buildings are measured by number of buildings instead of total floor area.
社団法人日本建築学会の論文
1994-10-30