Study on the Vibration Characteristics of Filldam with a Rigid Core : I. Analytical Study

摘要

In this report, as to the filldam with a rather rigid core, the vibration characteristics are discribed from the results obtained by using F. E. M. program, ISAP, in which modal analysis and time historical analysis are employed. Recently, a rigid core as likely as concrete is not used so many in Japan because the dynamical behavior of dams with such a core is not cleared. But authors try to treat such problem in order to find out the possibility to construct them and show various characteristics of them.