000021887 001__ 21887
000021887 005__ 20170622131310.0
000021887 04107 $$aeng
000021887 046__ $$k2017-06-15
000021887 100__ $$aGreco, Annalisa
000021887 24500 $$aON THE USE OF GENETIC ALGORITHMS TO ASSESS THE SEISMIC RESISTANCE OF PLANAR FRAME STRUCTURES

000021887 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021887 260__ $$bNational Technical University of Athens, 2017
000021887 506__ $$arestricted
000021887 520__ $$2eng$$aLimit analysis represents a widely adopted strategy for the assessment of the bearing capacity and collapse mechanism of frame structures. Within this framework, in this paper an original strategy for the effective evaluation of the ultimate resistance and the corresponding failure mechanism of planar frame structures subjected to lateral loads is presented. The methodology is based on the generation of the elementary collapse mechanisms to be combined following a collapse load factor minimization criterion. When a large number of possible combinations has to be investigated a prompt procedure able to quickly converge to the actual collapse load factor and to jump out of local minima is needed. For this reason a procedure based on genetic algorithms is here adopted and a dedicated user-friendly software was developed in the NetLogo programming environment. Validations of the proposed procedure with respect to nonlinear static analysis are reported together with some significant sensitivity analyses with respect to load distribution parameters. The results demonstrate the reliability of the procedure and can provide useful information also in view of seismic design optimization strategies.

000021887 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021887 653__ $$aLimit analysis, Seismic behaviour, Elementary mechanisms method, Genetic algorithms, NetLogo.

000021887 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021887 720__ $$aGreco, Annalisa$$iPluchino, Alessandro$$iCannizzaro, Francesco
000021887 8560_ $$ffischerc@itam.cas.cz
000021887 8564_ $$s749931$$uhttps://invenio.itam.cas.cz/record/21887/files/18227.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS13] Optimum design and control in structural dynamics and earthquake engineering
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000021887 962__ $$r21500
000021887 980__ $$aPAPER