23. 各種工法による戸建住宅の基礎的振動性状に関する検討(被害予測と緊急対応その3)

概要

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The wooden houses are the typical Japanese private individually housing and distributed in everywhere in Japan. Recently, the construction method for the individual housing were changing according to the age not only use the wood but also use the steel in the main frames. In 1995 Hyogoken Nanbu Earthquake, so many wooden houses were seriously damaged due to the strong ground motion and after the damage investigations, it was pointed out that the construction ages and construction methods were influenced to the damage grade and ratio of destroyed houses. In this paper, we investigated the basic characteristics in shaking for three types of typical individual housings constructed by different construction methods, the first one is the conventional framework construction method, the second one is prefabricated wall construction method and the third one is the prefabricated steel-frame construction method, using microtremor measurements. Preliminary results for the basic characteristics, natural periods and magnification factors, obtained from this investigations are reported in this paper.
地域安全学会の論文