000019818 001__ 19818
000019818 005__ 20170118182338.0
000019818 04107 $$aeng
000019818 046__ $$k2017-01-09
000019818 100__ $$aConte, Joel
000019818 24500 $$aInvestigation of Seismic Isolation for California High-Speed Rail Prototype Bridge in the Context of Probabilistic Performance-Based Optimum Seismic Design

000019818 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019818 260__ $$b
000019818 506__ $$arestricted
000019818 520__ $$2eng$$aBecause of the emerging transportation needs, the California High-Speed Rail (CHSR) project has been launched after significant success of high-speed rail systems in different countries around the world. In seismic prone areas, such as California, the seismic risk imposed to high-speed rail bridges is of particular concern to stakeholders and structural engineers. Seismic isolation is a promising solution to enhance the seismic performance of high-speed rail bridges. However, its effectiveness and beneficial effects need to be evaluated considering a comprehensive model of a high-speed rail bridge system (including the structure, soil, rails and their corresponding interactions) and using a probabilistic performance-based performance assessment approach. In this paper, a detailed three-dimensional (3-D) nonlinear finite element (FE) model of a CHSR prototype bridge, including soil-foundation-structure interaction and rail-structure interaction, is developed in OpenSees. Based on deterministic and probabilistic performance assessment, the responses (including the bridge structural and rail responses) of the prototype bridge with and without seismic isolation are compared. With a proper selection of seismic risk metrics/features used to quantify the beneficial and/or detrimental effects of seismic isolation under earthquake excitation, a parametric probabilistic seismic demand hazard analysis is performed with respect to the isolator model parameters. A well-posed problem of probabilistic performance-based optimum seismic design of seismic isolators for the CHSR prototype bridge is proposed to illustrate the suitability of seismic isolation for CHSR bridges using a probabilistic performance-based optimum seismic design framework.

000019818 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019818 653__ $$aCalifornia high-speed rail bridge; Seismic isolation; Probabilistic performance-based optimum seismic design

000019818 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019818 720__ $$aConte, Joel$$iAstroza, Rodrigo$$iLi, Yong
000019818 8560_ $$ffischerc@itam.cas.cz
000019818 8564_ $$s619212$$uhttps://invenio.itam.cas.cz/record/19818/files/4478.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4478.
000019818 962__ $$r16048
000019818 980__ $$aPAPER