有限要素法と薄層法を結合した解析手法とその適用 : 地盤環境振動の予測手法に関する研究その1

概要

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The construction of precision facilities that must be protected against vibrations caused by main roads and railways has been in great demand. In order to satisfy the requirement of performance of these facilities, it is necessary to control the vibrations within the allowable limit being strict for precision instruments in buildings. This implies necessity for development of 3-dimensional dynamic soil-structure analysis that makes it possible to accurately predict the vibrations transmitting from sources to structures via soils, and to apply the most suitable measures for reduction of vibrations. Therefore, we have developed the analysis technique that combines 3-D FEM with thin layer method to predict the ground vibrations produced by traffics, machines and construction operations. Hence, 3-D FEM and thin layer models represent near-field including structures and far-field, respectively. The shaker test in the ground and the rapid load test were simulated, and the effectiveness of this analysys method was confirmed.
社団法人日本建築学会の論文
2008-04-30