000011526 001__ 11526
000011526 005__ 20141205155919.0
000011526 04107 $$aeng
000011526 046__ $$k2008-10-12
000011526 100__ $$aSalajegheh, Eysa
000011526 24500 $$aOptimum Performance Based Design of Concentric Steel Braced Frames

000011526 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011526 260__ $$b
000011526 506__ $$arestricted
000011526 520__ $$2eng$$aEarthquake and structural engineering challenge of creating optimized, reliable and cost effective structures leads to the combination of optimization and performance based seismic design theory. The prime goal is to automate the design of the structure on the basis of performance based design and also considering the inherent uncertainties. In this study automating the design process of concentric steel braced frames is performed by use of genetic algorithms. The optimal design of structure minimizes the structural weight subjected to performance constraints on axial deformations of braces and plastic hinge rotation of beam-columns and also the force interactions relationships for them. Nonlinear static analysis (pushover) is implemented by considering the effect of post-buckling in compression brace elements and the performance based criteria is derived from the FEMA-356 (2000). The developed software in this study is capable of automating the design of braced Frames with different spans and stories for a prescribed performance objective, with the limitation of usage for structures in which the first mode is dominant. It is found that a wide range of valid design alternatives exists, from which a decision maker selects the one that balances and optimizes different objectives in the most preferred way.

000011526 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011526 653__ $$aperformance-based design, optimization, pushover analysis, genetic algorithm

000011526 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011526 720__ $$aSalajegheh, Eysa$$iMohammadi, Afshin$$iGhaderi Sohi, Saeed
000011526 8560_ $$ffischerc@itam.cas.cz
000011526 8564_ $$s143175$$uhttps://invenio.itam.cas.cz/record/11526/files/S14-024.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S14-024.
000011526 962__ $$r9324
000011526 980__ $$aPAPER