Browsing by Author "Tsopelas, P."
Now showing items 1-9 of 9
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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 ... -
Cellular-solid shear walls under seismic excitations
Chen, L.; Tsopelas, P. (2010)Cellular solids with deterministic periodic topologies show great potential for applications as response modification elements within structural systems, due to their ultra-light and good thermal properties. Response ... -
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 ... -
Recent Advances in Seismic Isolation: Methods and Tools
Tsopelas, P.; Kunnath, S. (2009)Highlights of the problem of seismic protection of structures and their contents are presented. The seismic isolation technology currently in use is essentially the same technology proposed almost 30 years ago when first ... -
Recent Advances in Seismic Isolation: Methods and Tools
Tsopelas, P.; Kunnath, S. (2010) -
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 ...