000018894 001__ 18894
000018894 005__ 20170118182246.0
000018894 04107 $$aeng
000018894 046__ $$k2017-01-09
000018894 100__ $$aJensen, Hector
000018894 24500 $$aReliability-Based Design of Complex Structural Systems Under Earthquake Excitation.

000018894 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018894 260__ $$b
000018894 506__ $$arestricted
000018894 520__ $$2eng$$aThis work presents an efficient strategy for dealing with reliability-based design problems of complex structural systems under earthquake excitation. The excitation is modeled as a non-stationary stochastic process which combines a pointsource model with a velocity pulse model. The solution of this class of problems is computationally very demanding due to the large number of structural analyses required during the design process. A model reduction technique combined with an appropriate optimization scheme is proposed to carry out the design process efficiently in a reduced space of generalized coordinates. In particular, a method based on substructure coupling technique for dynamic analysis is implemented to define a reduced-order model for the structural system. The re-assembling of the reduced-order model matrices due to changes in the values of the design variables are avoided during the optimization process. The effectiveness of the proposed methodology is demonstrated with one application problem consisting in the reliability-based design of a bridge structural model.

000018894 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018894 653__ $$aAdvanced simulation techniques; High dimensional reliability analysis; First excursion probability; Model reduction techniques; Reliability-based design optimization.

000018894 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018894 720__ $$aJensen, Hector
000018894 8560_ $$ffischerc@itam.cas.cz
000018894 8564_ $$s627165$$uhttps://invenio.itam.cas.cz/record/18894/files/2428.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2428.
000018894 962__ $$r16048
000018894 980__ $$aPAPER