000020330 001__ 20330
000020330 005__ 20170118182409.0
000020330 04107 $$aeng
000020330 046__ $$k2017-01-09
000020330 100__ $$aGkatzogias, Konstantinos I.
000020330 24500 $$aDeformation-Based Design of Seismically Isolated Concrete Bridges

000020330 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020330 260__ $$b
000020330 506__ $$arestricted
000020330 520__ $$2eng$$aA performance-based design (PBD) procedure, initially proposed for bridges designed for ductile behaviour of piers, is adapted herein to seismically isolated bridges. Accounting for multiple performance objectives, it initially identifies the critical hazard level and ‘near-optimal’ alternatives of the isolation system in terms of both economy and performance based on the inelastic response of a single-degree-of-freedom (SDOF) system. By incorporating nonlinear response history analysis (NLRHA) of the multi-degree-of-freedom (MDOF) system in a number of successive design steps that correspond to different performance levels (PLs), it subsequently leads (in a non-iterative way) to a refinement of the initial design solution through the control of a broad range of material strains and deformations. The efficiency of the proposed design methodology is evaluated by applying it to an actual bridge that was previously designed for ductile behaviour. Assessment of the design using NLRHA for spectrum-compatible motions reveals enhanced seismic performance and cost reduction in the substructure design, thus, rendering base-isolation an appealing design alternative.

000020330 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020330 653__ $$abridges; performance-based design; seismic isolation; nonlinear dynamic analysis

000020330 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020330 720__ $$aGkatzogias, Konstantinos I.$$iKappos, Andreas J.
000020330 8560_ $$ffischerc@itam.cas.cz
000020330 8564_ $$s857982$$uhttps://invenio.itam.cas.cz/record/20330/files/997.pdf$$yOriginal version of the author's contribution as presented on USB, paper 997.
000020330 962__ $$r16048
000020330 980__ $$aPAPER