000009891 001__ 9891
000009891 005__ 20141205153204.0
000009891 04107 $$aeng
000009891 046__ $$k2008-10-12
000009891 100__ $$aDogruel, Seda
000009891 24500 $$aRisk-Based Multi-Hazard Optimization of Passsively Damped Structures Using Evolutiounary Algorithms

000009891 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009891 260__ $$b
000009891 506__ $$arestricted
000009891 520__ $$2eng$$aA new computational methodology is developed for conducting Risk-based Optimal Multi-hazard Design (ROMD) of seismic- and wind-excited structures retrofitted with passive energy dissipation (PED) devices. In addition to designing in compliance with the relevant codes of practice, it is important to consider that the performance of PED devices for reducing the structural responses depends on the type, size, and distribution of dampers. The proposed framework provides a genetic algorithm (GA) based methodology to address these optimization issues of multi-hazard design within the context of nonlinear steel frame structures. Steel buckling restrained braces, viscous fluid dampers and solid viscoelastic dampers are all considered as possible design alternatives within this framework. In the proposed algorithm, passively damped structural designs evolve toward configurations that limit damage associated with inter-story drift and absolute floor acceleration, while considering essential conflicts in dynamic response demands of the structures under multi-hazard environments, involving earthquakes and strong windstorms. Unlike previous work in PED optimization, the ROMD approach compares the life cycle costs and benefits of the alternative design or retrofit strategies using an optimization criterion that reflects physical and economical uncertainties, as well as the attitudes of decision makers through the

000009891 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009891 653__ $$aOptimal structural design, multi-hazard mitigation, life-cycle cost, risk aversion, genetic algorithms

000009891 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009891 720__ $$aDogruel, Seda$$iDargush, Gary F.
000009891 8560_ $$ffischerc@itam.cas.cz
000009891 8564_ $$s672483$$uhttps://invenio.itam.cas.cz/record/9891/files/S14-040.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S14-040.
000009891 962__ $$r9324
000009891 980__ $$aPAPER