000021808 001__ 21808
000021808 005__ 20170622131305.0
000021808 04107 $$aeng
000021808 046__ $$k2017-06-15
000021808 100__ $$aKitagawa, Daisuke
000021808 24500 $$aDEVELOPMENT OF A CURVILINEAR HYSTERESIS MODEL FOR REINFORCED CONCRETE STRUCTURES

000021808 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021808 260__ $$bNational Technical University of Athens, 2017
000021808 506__ $$arestricted
000021808 520__ $$2eng$$aMultilinear hysteresis models such as the Clough model are generally used for earthquake response analysis of reinforced concrete (RC) structures, while force-deformation relations obtained in experimental studies are curvilinear. Other hysteresis models are developed to consider features such as strength degradation at large deformation regions, stiffness degradation due to cyclic loading or inverted S-shaped slip property. However, these models are generally not widely used because most use many rules to express all the features and require many parameters, which makes the model complicated. In this study, a curvilinear hysteresis model for RC structures is developed with relatively simple rules and a small number of parameters. The model consists of only two functions, the skeleton curve and the inner loop, and nine model parameters. The developed model is applicable to various types of RC beams and columns, including strength deterioration at large deformation regions, stiffness degradation due to cyclic loading or inverted S-shaped slip property. A method to evaluate the capability of hysteresis model is developed using the minimized error index based on genetic algorithm to obtain the best parameter which will reproduce the force-displacement relations. Force-displacement relations of RC specimens are collected from previous experimental studies and the error indices are calculated. The developed model are capable of reproducing forcedisplacement relations well compared to other hysteresis models for RC structures.

000021808 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021808 653__ $$aReinforced Concrete Structure, Curvilinear Hysteresis Model, Force-Displacement Relation, Genetic Algorithm, Hysteresis Model Capability Evaluation

000021808 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021808 720__ $$aKitagawa, Daisuke$$iUmemura, Hisashi
000021808 8560_ $$ffischerc@itam.cas.cz
000021808 8564_ $$s480030$$uhttp://invenio.itam.cas.cz/record/21808/files/18012.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS04] Dynamics of concrete structures
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000021808 962__ $$r21500
000021808 980__ $$aPAPER