構造種別容積率増減制度の延焼危険度改善効果

概要

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The aim of this study is to propose floor area ratio system by structures and to show how it works on future fire-spreading risk. To this end, a behavior model of building-clients was constructed. In this model, a utility of each building was represented by two indexes, namely benefit index and cost index. The former was represented by the total amount of floor area. The latter was represented by the annual cost of building and its lot. The parameters of the model were coordinated by building database at two different observation times. Based on the simulation by the above model, changes of an index of fire-spreading risk were estimated. As a result, when the ratio of fireproof building was enlarged 3 times as much as wooden buildings, future index of fire-spreading risk was reduce more than 4 times of the case without the system. These results show the good effectiveness of this system.
2007-07-30