耐震診断による上部構造評点を用いた木造在来軸組構法住宅の地震特性能評価 [in Japanese]
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This research aims to investigate the relationship between the amount of bearing-wall in an earthquake diagnosis evaluation, the fundamental natural frequency based on the micro-tremor measurement and the actual earthquake damage to conventional wooden-framed houses in Japan. The micro-tremor measurements are widely taken to survey the earthquake damage to wooden houses and the site ground condition. However, a close relationship between the earthquake damage, the amount of bearing-wall of wooden house, and the micro-tremor property is not established. The wall-fulfillment ratio shows an amount of existing bearing-wall with an effective length against the wall required by the Building Code. The diagnosis grade-point for superstructure of wooden house corresponds to the wall-fulfillment ratio, that is, the safety factor of the load-carrying capacity against the external force such as an earthquake or a wind. It is said that, when the grade-point in the evaluation falls to 1.0-0.7, earthquake damage may occur and, when the grade-point is less than 0.7, the collapsing possibility is very high under a severe earthquake.
- 広島工業大学紀要. 研究編
広島工業大学紀要. 研究編 42, 191-197, 39479-00-00