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Seismic Damage Prediction of Old Japanese-style Wooden House Using Predominant Period Distribution of Ground Surface Layer |
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| รหัสดีโอไอ | |
| Title | Seismic Damage Prediction of Old Japanese-style Wooden House Using Predominant Period Distribution of Ground Surface Layer |
| Creator | Tomiya Takatani |
| Contributor | - |
| Publisher | ISEC PRESS |
| Publication Year | 2559 |
| Keyword | Microtremor observation, Vulnerability function, Maximum drift angle of wooden house, Inverse distance weighting method |
| Abstract | The evaluation of a site effect is very important in the earthquake engineering when a seismic damage distribution of wooden house will be predicted by an accurate estimation of seismic intensity. In this pa-per, both horizontal and vertical microtremors at 51 sites in the west district in Maizuru city were meas-ured by servo type accelerometers, and also the predominant periods at 727 sites in the same area were numerically evaluated from the predominant periods measured at 51 sites. Moreover, seismic damage prediction of wooden house against a strong earthquake ground motion with the Japan Meteorological Agency seismic intensity of โ5 lower to 6 upperโ level was conducted by the relationship between the vulnerability function and the maximum drift angle of wooden house. The summary obtained in this paper is as follows.(1)A predominant period at the site without any ground information can be easily evaluated from micro-tremor H/V spectral ratio obtained from microtremor measurement.(2)Using the Inverse Distance Weighting method, a distribution map of predominant period of ground can be numerically estimated under the limited microtremor observation values.(3)Vulnerability function with a base shear coefficient can be obtained from the maximum drift angle of wooden house, which is evaluated by the predominant period of ground. Also, collapse rate of wood-en house for each base shear coefficient can be predicted by the vulnerability function. |
| ISBN | 978-0-9960437-3-1 |
