000010728 001__ 10728
000010728 005__ 20141205155757.0
000010728 04107 $$aeng
000010728 046__ $$k2008-10-12
000010728 100__ $$aLin, Jui-Liang
000010728 24500 $$aTime-Domain Modal Analysis of Non-Proportionally Damped Two-Way Asymmetric Elastic Buildings

000010728 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010728 260__ $$b
000010728 506__ $$arestricted
000010728 520__ $$2eng$$aThis study investigates the effectiveness of the modal analysis using three-degree-of freedom (3DOF) modal equations of motion to deal with the seismic analysis of two-way asymmetric elastic systems with supplemental damping. The 3DOF modal equations of motion possessing the non-proportional damping property enable the two modal translations and one modal rotation to be not proportional in an elastic state. The conventional approximation method is to use the single degree-of-freedom (SDOF) modal equations of motion, which is obtained by neglecting the off-diagonal elements of the transformed damping matrix. One one-story and one three-story non-proportionally damped two-way asymmetric buildings under the excitation of bi-directional seismic ground motions are analyzed. The analytical results are obtained by using the proposed method, the noted conventional approximation method and the direct integration of the equation of motion. It is seen that the proposed method can significantly improve the accuracy of the analytical results compared with those obtained by using the conventional approximation method. Moreover, the proposed method does not substantially increase the computational efforts.

000010728 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010728 653__ $$aasymmetric buildings, non-proportional damping, bi-directional ground motion, modal response history analysis

000010728 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010728 720__ $$aLin, Jui-Liang$$iTsai, Keh-Chyuan
000010728 8560_ $$ffischerc@itam.cas.cz
000010728 8564_ $$s372882$$uhttps://invenio.itam.cas.cz/record/10728/files/05-01-0028.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0028.
000010728 962__ $$r9324
000010728 980__ $$aPAPER