Browsing by Author "Ucak, A."
Now showing items 1-6 of 6
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Accurate modeling of the cyclic response of structural components constructed of steel with yield plateau
Ucak, A.; Tsopelas, P. (2012)A time-independent constitutive model for structural steels with a yield plateau is presented. The model is based on the basic principles of time-independent plasticity. The model couples the nonlinear kinematic hardening ... -
Assessment of ssi effects on a seismically isolated multi-span bridge under bi-directional seismic excitation
Ucak, A.; Mavroeidis, G.; Pekcan, G.; Tsopelas, P. (2010)Elevated highway bridges are important elements in modern society infrastructure. Due to their strategic importance, loss of functionality in an earthquake is not an acceptable performance criterion. Observed performance ... -
Behavior of a seismically isolated bridge crossing a fault rupture zone
Ucak, A.; Mavroeidis, G. P.; Tsopelas, P. (2014)The effect of the fault rupture zone traversing a seismically isolated bridge is investigated utilizing a finite element model of a section of the Bolu Viaduct and a set of synthetic broadband strong ground motions simulated ... -
Constitutive Model for Cyclic Response of Structural Steels with Yield Plateau
Ucak, A.; Tsopelas, P. (2011)A rate-independent cyclic plasticity model for structural steels with a yield plateau is proposed. The model couples nonlinear kinematic hardening with a memory surface in the plastic strain space, to account for the ... -
Load Path Effects in Circular Steel Columns under Bidirectional Lateral Cyclic Loading
Ucak, A.; Tsopelas, P. (2015)Rigorous numerical analyses are conducted to study the effects of bidirectional lateral cyclic loading on the hysteretic response of stocky circular thin-walled steel columns. Four unidirectional and eight bidirectional ... -
The response of the seismically isolated bolu viaduct subjected to fault crossing
Ucak, A.; Mavroeidis, G. P.; Tsopelas, P. (2013)The effect of fault crossing on the response of the seismically isolated Bolu Viaduct is investigated. The seismic ground motions at the site of the viaduct are generated following a rigorous methodology which is based on ...