STUDY ON ANALYTICAL REPRODUCTION OF DYNAMIC VIBRATION TESTS OF TRADITIONAL WOODEN FRAMED HOUSE

Abstract

Two different types of structural foundation have been used for traditional wooden framed houses. One of them is that the columns or the ground sills are perfectly fixed on the foundations, and the other is that the columns of the house are freely movable because of neither sill nor fixing. Many houses with the latter widely exist, of which foundation is called as “Ashigatame”. Vibration tests for two foundation types above mentioned were carried out a few years ago. We reproduce the test results by an analysis and show the technique for the two types by using a simple structural model. The results show the accuracy of reproduction and the technique. It is also shown how to decide the dynamic parameters and to introduce a restoring force model in analysis.