000011735 001__ 11735
000011735 005__ 20141205155941.0
000011735 04107 $$aeng
000011735 046__ $$k2008-10-12
000011735 100__ $$aStuardi, J.E.
000011735 24500 $$aComparative Seismic Performance of a Base Control System Based on Measured and Calculated Responses

000011735 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011735 260__ $$b
000011735 506__ $$arestricted
000011735 520__ $$2eng$$aFinite element (FE) models of two similar buildings, one constructed with a traditional fixed-base foundation and the other provided with a Base Control System (BCS), were developed and calibrated. The two instrumented buildings, which are practically identical 3-story reinforced concrete structures, are located in Mendoza, Argentina. The accelerometers recorded the response due a 5.7 magnitude earthquake that shook the buildings on August 5, 2006. The BCS, developed by Gerb GmbH in Germany, consists of a combination of helicoidal springs and viscous dampers. The numerical models were used to carry out a comprehensive comparison of the seismic response of the two buildings and to evaluate the performance of the isolation system. Commercial finite element software was used to calculate the response due to the recorded seismic excitation in time domain, considering the non proportional damping due to the viscous dampers as a nonlinear load term. After the FE models were calibrated, the response time histories of both buildings were compared. The response examined were the acceleration at different levels, the base displacements, the axial forces and bending moments on different columns and the base shear. The results showed that the BCS was able to reduce the accelerations and internal forces in the isolated building to less than one third of the values corresponding to the rigid base structure.

000011735 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011735 653__ $$aBase isolation, Base Control System, helical springs, instrumented structures, viscous dampers

000011735 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011735 720__ $$aStuardi, J.E.$$iNawrotzki, P.$$iSuárez, L.E.
000011735 8560_ $$ffischerc@itam.cas.cz
000011735 8564_ $$s3428545$$uhttps://invenio.itam.cas.cz/record/11735/files/05-06-0169.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0169.
000011735 962__ $$r9324
000011735 980__ $$aPAPER