000019398 001__ 19398
000019398 005__ 20170118182316.0
000019398 04107 $$aeng
000019398 046__ $$k2017-01-09
000019398 100__ $$aCynober, Charles
000019398 24500 $$aRailway Bridges Isolation

000019398 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019398 260__ $$b
000019398 506__ $$arestricted
000019398 520__ $$2eng$$aAlgeria is extending the railway infrastructure in a seismic zone. In order to meet as well the seismic design criteria and the railway serviceability criteria, an innovative seismic protection system has been recently used for some new viaducts, using Prestressed Spring Dampers (PDS). These seismic devices have three functions: blocking axial displacements as long as forces are smaller than a preload, viscous damping for higher loads than the preload, bringing back the bridge in initial position after the earthquake. The preload has been set above service loads. For longitudinal PDS, the preload is set above thermal expansion, shrinkage and breaking loads. For transversal PDS, the preload is set above wind loads. Additional damping is provided by traditional viscous dampers. Vertical load is supported by sliding pot bearings. This innovative seismic protection system has been used because it efficiently reduces seismic demand on the piers and foundations. Devices have been intensively tested to demonstrate their reliability.

000019398 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019398 653__ $$aRailway bridge; seismic isolation; Eurocode 8; viscous dampers; time history analysis

000019398 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019398 720__ $$aCynober, Charles$$iToth, Miklos$$iHamadi, Bassem Ben$$iRoulie, Vanessa Buchin
000019398 8560_ $$ffischerc@itam.cas.cz
000019398 8564_ $$s810732$$uhttps://invenio.itam.cas.cz/record/19398/files/3543.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3543.
000019398 962__ $$r16048
000019398 980__ $$aPAPER