000004757 001__ 4757
000004757 005__ 20141119144550.0
000004757 04107 $$aeng
000004757 046__ $$k2002-06-02
000004757 100__ $$aAbdelnaby, Mohamed
000004757 24500 $$aINCREASING STRUCTURAL SAFETY OF LONG-SPAN BRIDGES BY ACTIVE CONTROL

000004757 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004757 260__ $$bColumbia University in the City of New York
000004757 506__ $$arestricted
000004757 520__ $$2eng$$aThe effectiveness of active multiple mass damper system (AMMD) for suppressing wind-induced vibration response of long span bridges and, hence, increasing the structural safety will be investigated in the proposed research work. The three components of buffeting wind forces are numerically simulated using an improved algorithm introduced also in this paper. The target wind velocity field is assumed to be one-dimensional multivariate stochastic process. The fast Fourier transform is used to enhance the efficiency of computation. The equations of motion of the system with dampers will be introduced. A bridge mounted by AMMD and subjected to simulated wind forces is solved. A comparison between passive and active system is performed. Numerical example results reveal that the active control system performs better than its passive counterpart. Comments on the performance are finally made.

000004757 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004757 653__ $$aActive control, tuned mass dampers, wind, simulation, cable stayed, bridge.

000004757 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004757 720__ $$aAbdelnaby, Mohamed
000004757 8560_ $$ffischerc@itam.cas.cz
000004757 8564_ $$s343023$$uhttps://invenio.itam.cas.cz/record/4757/files/287.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004757 962__ $$r4594
000004757 980__ $$aPAPER