振動台を用いた鋼構造骨組の動的加振実験 (その2)

Abstract

In the previous paper, the results of shaking table tests and dynamic response analysis werereported.In this paper, restoring force characteristics based on the static loading tests were modifiedto apply in the response analysis taking account of the effect of a high strain rate. From thecomparison between dynamic and static behavior, it is recognized that the strength of a frameincreases by the effect of a strain rate. On the basis of this result, restoring force characteristicswere modified and applied in the response analysis. The time history of the acceleration re-sponse could be predicted with a sufficient accuracy by the response analysis, but that of thestory-drift response from analysis did not fall completely on the test results, mainly because ofthe inaccurate estimation of an in-elastic flow of a deformation response in a plastic region.