000010579 001__ 10579
000010579 005__ 20141205155742.0
000010579 04107 $$aeng
000010579 046__ $$k2008-10-12
000010579 100__ $$aKuhn, Mathias
000010579 24500 $$aInfluence of Soil Flexibility on the Behavior of Existing Bridges in Regions of Moderate Seismicity

000010579 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010579 260__ $$b
000010579 506__ $$arestricted
000010579 520__ $$2eng$$aFor the assessment of existing bridges a realistic modeling of the system behavior is crucial to capture the relevant influences on the seismic response. This is particularly the case for structures that have not been designed according to modern seismic design principles as they can develop inelastic deformations in parts that would otherwise be capacity protected. This holds also true for the soil-foundation system of existing cantilever piers with spread foundations which may develop significant inelastic deformations and thus even prevent the piers from entering into the inelastic range. As a consequence, the seismic behavior of the bridge structure can change completely compared to a fixed-base pier model, especially with respect to the local member deformation demands. In this paper, a simplified engineering model to estimate the influence of soil flexibility at spread foundations is presented. The model is applied on a sample structure with varying parameters to show the consequences of different conditions and assumptions on the structure response.

000010579 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010579 653__ $$asoil flexibility, spread foundations, bridge assessment, existing bridges

000010579 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010579 720__ $$aKuhn, Mathias$$iBimschas, Martin$$iDazio, Alessandro
000010579 8560_ $$ffischerc@itam.cas.cz
000010579 8564_ $$s512708$$uhttps://invenio.itam.cas.cz/record/10579/files/05-02-0129.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0129.
000010579 962__ $$r9324
000010579 980__ $$aPAPER