EARTHQUAKE SAFTEY ASSESSMENT OF A TALL BRICK CHIMNEY IN TOKONAME BASED ON THE MICRO-TREMOR MEASUREMENT
This paper deals with earthquake safety of the brick chimney of the height of 23 m in Tokoname, Japan. We measured micro-tremor to acquire vibration characteristics, which was used to construct FE model for the superstructure by simulating base-fixed horizontal natural frequencies. Soil-foundation interaction was treated by installing soil springs which were determined by simulating soil-coupled frequency. With the soil-coupled FE model, linear dynamic response analysis was carried out for four kinds of input ground motions. It is found that the base of the chimney will have damage at maximum acceleration from 41 to 77 Gal, should the collapse be caused by excessive tensile stress at mortal joints.
brick chimney micro-tremor Tokoname soil spring soil-structure interaction
T. Yamamoto T. Maeda
Dept. of Architecture, Waseda University, Tokyo. Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）