性能設計に向けた土の動的性質と地震時挙動解析(<小特集テーマ>飛躍する耐震技術 : 地盤工学の挑戦)

概要

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Existing problems in and future requirements for the dynamic deformation characteristics and earthquake response analysis are reviewed for the performance-based design. Prediction of displacement after failure of soil becomes important in the performance-based design. The behavior of soil at strains larger than medium strain has, however, not been grasped in the conventional tests; a new test method should be developed. Driving force such as seepage force will play important role in the displacement after liquefaction, which cannot be grasped in a laboratory test. Therefore, the combination of shaking table test and damage analysis will become important. Finally, constitutive models should be developed that can consider above mentioned soil characteristics.
2003-02-01