(39)継続時間の異なる地震動を受ける鉄筋コンクリート柱の振動台実験

概要

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The purpose of this study is to investigate the inelastic behavior of reinforced concrete columns subjected to simulated input motions with different time duration. Three identical specimens, one for static test, two for shaking table tests, were tested. Shaking table tests were carried out using the shaking table in Tohoku University. In order to get satisfied test results, the compensations for 2 kinds of input motions were carried out before shaking table tests by stiffening the identical used specimen with steel braces for different damage levels. The test results of stiffness variations, cracking patterns, load-displacement relationships etc., are compared. From the comparison with the static test, it is verified that before yielding point, the maximum inertia forces of shaking table tests show nearly as the same as the static test, but after yielding point, those of shaking table tests are 1.1-1.2 times higher than the static test at the same relative displacements. Furthermore, the results of free vibration tests for three cases are discussed here.
一般社団法人日本建築学会の論文
1999-03-10