شماره ركورد كنفرانس :
3124
عنوان مقاله :
IMPROVED NUMERICAL INTEGRATION PROCEDURE FOR APPLICATION TO SEISMIC HYBRID SIMULATION
پديدآورندگان :
ZAKERSALEHI Maedeh نويسنده , TASNIMI Abbas Ali نويسنده , AHMADIZADEH Mehdi نويسنده
كليدواژه :
Seismic Hybrid Simulation , Accuracy , Error Index , Numerical Integration
عنوان كنفرانس :
مجموعه مقالات هفتمين كنفرانس بين المللي زلزله شناسي و مهندسي زلزله
چكيده فارسي :
Hybrid simulation is a powerful test method for evaluating the seismic performance of structural
systems.Thismethod makes it feasible that only critical components of structure be tested experimentally
while the rest of the structure is numerically modelled. This paper presents a newly proposed integration
algorithm for seismic hybrid simulation which is aimed to extend the capabilities of hybrid simulation to a
wide range of systems where existing methods encounter some limitations. In the proposed methodwhich is
termed Variable Time Step (VTS) integration method, an implicit scheme is employed for hybrid simulation
by eliminating the iterative phase on experimental element, the phase which is necessary in regular implicit
applications.In order to study the effectiveness of the VTS method, a series of numerical investigations are
conducted, in them the restoring force of the column is assumed to be achieved experimentally. The results
show the successfulness of VTS method in obtaining accurate, stable and converged responses.Also in a
comparative approach, the improved accuracy of VTS method over commonly used integration methods
isdemonstrated utilizing two error indicators.
شماره مدرك كنفرانس :
3817028