簡易ピエゾケ－ブル変位センサと有限要素法を用いた伝統木造構造物の振動解析

抄録

The applicability of a new type of piezoelectric sensor to evaluate the dynamic characteristics of traditional wooden structures is investigated based on forced vibration tests and finite element analysis procedure. The new sensor was developed for structural health monitoring purposes and series of forced vibration tests on a one-fifth scale wooden prototype were performed to evaluate the sensor response. The prototype structure corresponds to a framed wooden construction with traditional connections between columns and beams where nails are not used. These joints consist of beam-ends narrowed with respect to the rest of the piece and inserted into a hole cut in the column. New sensors were installed in selected joints of the structure. The results of the forced vibration test obtained from new sensor measurements are discussed in relation to the analytical procedure adopted to estimate the vibration characteristics and dynamic response of the target structure, and good agreement was obtained between both results. With this good agreement of the analytical procedure and the measurement results, the reliability of the employed methodology and the applicability of the proposed new sensor were verified.