000010864 001__ 10864
000010864 005__ 20141205155811.0
000010864 04107 $$aeng
000010864 046__ $$k2008-10-12
000010864 100__ $$aManos, George
000010864 24500 $$aModel Bridge Pier-Foundation-Soil Interaction Implementing In-Situ/Shear Stack Testing and Numerical Simulation

000010864 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010864 260__ $$b
000010864 506__ $$arestricted
000010864 520__ $$2eng$$aThis paper presents results of the measured and predicted response of a bridge pier model structure which has been erected at the Volvi-Greece European Test Site. After an initial laboratory testing of the bridge pier model under cyclic horizontal loads and the study of its cyclic post-elastic behaviour, a series of low-to medium intensity excitations were performed at the test site for a period of two years. The deck acceleration response was recorded and was studied in the frequency domain in order to extract the most significant eigen-modes and eigen-frequencies for the various configurations of this pier bridge model. Moreover, an extensive numerical simulation of the response was also performed, including the flexibility of the foundation. The numerical simulation was also extended to include a volume of soil under the foundation in order to study the soil response when the pier was subjected to low intensity man-made excitations. Four pressure cells were placed in the soil under the foundation and measurements were obtained from these pressure sensors during the man made excitations, which were then correlated to the numerical predictions. A summary of the in-situ measurements of the bridge pier model response are presented and compared with the corresponding numerical predictions from a variety of numerical simulations that attempt either in a relatively simple or a relatively complex way to address the influence on the response that arises from the flexible foundation conditions. A similar testing arrangement, but on a smaller scale, was investigated at the Laboratory through a small-scale model pier. This testing arrangement also includes the flexibility of the soil with the implementation of a sand box with a shear stack arrangement. Accelerations are recorded both on the pier as well as within the soil body. Also in this case, numerical analysis is complementary utilized and the dynamic response of the bridge pier model – sand box system is simulated. Both the eigen-frequencies and the seismic response of the system in the time domain, that are derived numerically, are found to be in good agreement with the measured results.

000010864 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010864 653__ $$aBridge Pier, Model, Soil-Foundation Interaction

000010864 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010864 720__ $$aManos, George$$iKourtidis, Vladimiros$$iSextos, Anastasios
000010864 8560_ $$ffischerc@itam.cas.cz
000010864 8564_ $$s2616182$$uhttps://invenio.itam.cas.cz/record/10864/files/12-01-0016.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0016.
000010864 962__ $$r9324
000010864 980__ $$aPAPER