000019926 001__ 19926
000019926 005__ 20170118182347.0
000019926 04107 $$aeng
000019926 046__ $$k2017-01-09
000019926 100__ $$aGalasso, Carmine
000019926 24500 $$aIntegrating Semi-Active Structural Control and Earthquake Early Warning

000019926 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019926 260__ $$b
000019926 506__ $$arestricted
000019926 520__ $$2eng$$aThis paper presents a methodology that combines the use of magnetorheological (MR) dampers together with an earthquake early warning (EEW) system to minimize the losses in a structure about to be struck by an incoming ground motion. MR dampers can generate relatively large controllable damping forces by tuning the viscosity of an MR fluid through a control voltage. Their mechanical simplicity, fast response time, and low electric power requirements make them attractive for potential applications in earthquake engineering, particularly when combined with EEW. In this paper, a control algorithm is developed to determine the command voltage of the MR damper based on the expected ground shaking predicted by an EEW system. A general framework is introduced that develops a performance-based (i.e., loss-based) control algorithm for semi-active devices combined with an EEW system. A simplified story-based buildingspecific component-based loss estimation is used in the proposed framework, combining real-time, EEW-based seismic hazard, nonlinear dynamic structural simulation, damage fragility and loss. For illustrative purposes, the control algorithm is implemented on a generic three-story building structure equipped with a small-scale MR damper prototype. Results reveal that the developed EEW-based control algorithm can effectively reduce the expected loss of the considered case-study structure.

000019926 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019926 653__ $$aSemi-Active Control, Earthquake Early Warning, MR Damper, Performance Based Earthquake Engineering

000019926 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019926 720__ $$aGalasso, Carmine$$iOrtiz, Omar Velazquez
000019926 8560_ $$ffischerc@itam.cas.cz
000019926 8564_ $$s1122625$$uhttp://invenio.itam.cas.cz/record/19926/files/4705.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4705.
000019926 962__ $$r16048
000019926 980__ $$aPAPER