Title of article
Torsional wave propagation in reinforced concrete columns
Author/Authors
Hidenori Murakami، نويسنده , , Junya Yamakawa، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
21
From page
2617
To page
2637
Abstract
Using a semi-analytical finite element (FE) method, the torsional phase velocity spectra
of elastic waves were investigated for reinforced concrete (RC) columns with and without exterior
composite layers. An examination of the spectra of these two types of columns shows that the
retrofitted columns have a slightly smaller phase velocity in their first mode. In addition, the first
mode shapes exhibit marked warping induced by the vertical bars.
Comparisons of the exact phase velocity of the first mode with those calculated from elementary
theories indicate that the elementary theories give a poor prediction of the torsional wave speed
even at the long wavelength limit. This inaccuracy, which comes from not including the effect of
warping, can be overcome by computing the torsional rigidity utilizing Saint-Venanrs semi-inverse
method for torsional warping. ( 1998 Elsevier Science Ltd. All rights reserved
Journal title
International Journal of Solids and Structures
Serial Year
1998
Journal title
International Journal of Solids and Structures
Record number
446427
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