都城にある在来木造住宅の耐震性能調査(その1)耐震診断による耐震性能調査

概要

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The 1995 Hyogo-ken Nanbu earthquake struck Kobe and destroyed more than 100,000 wooden houses ; as a result, more than 5,000 people were killed. This was mainly because of defects in structural planning. It is very important for earthquake disaster prevention teams to investigate seismic capacity of buildings against strong earthquake ground motion. This paper addresses problems in seismic capacity of 197 conventional wooden houses built in Miyakonojo since 1987 by using seismic diagnosis. Forty eight percent of one-storied houses and sixty five percent of two-storied houses have some serious problems in structural planning. Some of them have plain concrete continuous footing on soft ground or do not have enough wall quantity against earthquake load under clay tile roofing, Others have more than 0.15 modulus of eccentricity because of unbalanced wall in flloor plannaing. The result of this analysis suggests if an earthquake the size of the Kobe quake hit Myakonojo, there would be loss of life and serious damage.
都城工業高等専門学校の論文