振動台実験から得られた繰り返し加振による木造軸組工法住宅の構造特性の変化

概要

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This paper presents the results of shaking table tests performed on a full-scale conventional timber frame construction house. The aim of this research is to clarify the change of structural characteristics of a timber house subjected to multiple shaking table tests. The specimen is a two storied timber house of a conventional post and beam construction with wooden brace for horizontal load resisting element. The roof is of plywood sheathing. The excitations were operated 21 times on the specimen. The maximum horizontal displacement was 1/15rad., measured at the second floor, by the 2004 K-net Ojiya EW full scale input motion. The natural frequency of vibration in the first mode of the structure was observed to reduce as the specimen experience multiple shaking table tests. The relation of seismic diagnosis and damages of specimen are discussed by the result of shaking table tests.
一般社団法人日本建築学会の論文
2008-03-25