領域縮小法による3次元丘地形の地震応答解析

書誌事項

タイトル別名
  • SEISMIC RESPONSE OF A THREE DIMENSIONAL HILL ANALYSED BY THE DOMAIN REDUCTION METHOD
  • リョウイキ シュクショウホウ ニ ヨル 3ジゲン キュウ チケイ ノ ジシン オウトウ カイセキ

この論文をさがす

抄録

This article presents the domain reduction method, a two-step finite element methodology for modeling earthquake ground motion in highly heterogeneous localized regions, and its application to hill topography. Four hill models, considering a surface weathered soft layer and layered system under the hill, are excited by a point source and plane waves. The amplification of seismic ground motion on and around 3-dimensional hills are compared to those of 2-dimensional hills and simple 1-dimensional amplification. The complicated pattern of amplification generated by collaboration of hill topography with layers are illustrated and quantified. The peak values and peak frequencies of amplification factor around the top of 3-D hills are larger than those of 2-D hills and 1-D amplification. It suggests that 1-D approximation of subsurface structure under a hill is inadequate when 3-D effect is significant.

収録刊行物

被引用文献 (3)*注記

もっと見る

参考文献 (33)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ