000012306 001__ 12306
000012306 005__ 20141205160040.0
000012306 04107 $$aeng
000012306 046__ $$k2008-10-12
000012306 100__ $$aZhang, Xiaozhe
000012306 24500 $$aPerformance Assessment of Active and Hybrid Control Based on Energy and Site Potential Earthquakes

000012306 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012306 260__ $$b
000012306 506__ $$arestricted
000012306 520__ $$2eng$$aThe performance evaluation of seismic resistant buildings equipped with structural control is presented in this paper based on probability analysis approach. Due to the uncertainty characteristics of an earthquake, the future ground motion is unlikely to be deterministically predicted at a given site. In the probability analysis, a group of ground motions is produced for each of three earthquake magnitudes of 6, 7, 8. The time history responses are then determined for each input motion in the group and the maximum output are examined using the Monte Carlo method. The distribution of the largest maximum (extreme value) is assumed to follow the Gumbel-type distribution. Here, ground motions are generated considering the earthquake fault and tectonic movements at the building site with the finite-fault stochastic Green's function method. The performance is expressed in terms of the allowable structural displacement under control and the control force requirement as well as the energy demand in the controller. The performance is assessed with the coverage probability by which the control objective is to be evaluated in the concept of probabilities. To perform a lifetime evaluation, the earthquake occurrence model is used to predict the earthquake return period. The method is general for various types of control system, and detailed discussions are illustrated for active and intelligent hybrid controllers. The intelligent strategy is designed for the application of a hybrid control system, composed of the actuator and passive damper. The control operation is triggered with specified threshold response values. Only the passive damper part operates under small and moderate earthquakes so that the active actuator does not need to be activated; the actuator is activated for strong earthquakes when the threshold requirement cannot be satisfied by the passive part alone. Mathematical formulations are presented with numerical results of a six-story building, protected with either active or hybrid control, and subjected to different magnitude of earthquakes. A hundred earthquakes are generated for each of three magnitudes: 6.0, 7.0 and 8.0 on the Richter scale. The intelligent hybrid control reveals its advantage over the active system based on the energy consumption during the building's life-cycle period.

000012306 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012306 653__ $$aSeismic performance, Probability, Control, Energy, Earthquake, Earthquake occurrence

000012306 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012306 720__ $$aZhang, Xiaozhe$$iCheng, Franklin Y.$$iLou, Menglin
000012306 8560_ $$ffischerc@itam.cas.cz
000012306 8564_ $$s485329$$uhttps://invenio.itam.cas.cz/record/12306/files/S06-009.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S06-009.
000012306 962__ $$r9324
000012306 980__ $$aPAPER