000011249 001__ 11249
000011249 005__ 20141205155851.0
000011249 04107 $$aeng
000011249 046__ $$k2008-10-12
000011249 100__ $$aOviedo A., Juan Andrés
000011249 24500 $$aOptimum Strength Ratio of Buckling-Restrained Braces as Hysteretic Energy Dissipation Devices Installed in R/C Frames

000011249 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011249 260__ $$b
000011249 506__ $$arestricted
000011249 520__ $$2eng$$aThis paper focuses on the application of buckling-restrained braces (BRB) to reinforced concrete (R/C) framed structures in order to reduce the seismic damage in the main frame components. An attempt for a new direction in defining the mechanical properties of hysteretic dampers is evaluated in which the deformation of dampers is directly controlled. The range of strength levels required to be given to the dampers to minimize the damage in the main frame is investigated. A parametric study was carried out on 10-story R/C building structure with damper strength ratio β and yield drift ratio ν as main parameters. Equivalent single-degree-of-freedom (ESDOF) model is also discussed. Based on the numerical results it has been concluded that there is not a unique value that minimizes the damage in the main frame; on the contrary, there is an applicable range. The range is found to be dependent on the seismic input level and time-dependent characteristics of ground motions. Earthquake response shows the significant improvement of the structural performance and the implication of the yield drift ratio on the reduction of maximum floor displacements and damage in the main frame. ESDOF model demonstrated to provide sufficiently accurate estimations of floor displacements.

000011249 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011249 653__ $$abuckling-restrained brace, equivalent SDOF system, hysteretic damper, optimum strength of hysteretic dampers, reinforced concrete structure

000011249 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011249 720__ $$aOviedo A., Juan Andrés$$iMidorikawa, Mitsumasa$$iAsari, Tetsuhiro
000011249 8560_ $$ffischerc@itam.cas.cz
000011249 8564_ $$s403702$$uhttps://invenio.itam.cas.cz/record/11249/files/05-03-0235.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-03-0235.
000011249 962__ $$r9324
000011249 980__ $$aPAPER