TY - CHAP
T1 - Seismic design of bridges
T2 - Present and future
AU - Kappos, Andreas J.
N1 - Funding Information:
The Deformation-based Design approach presented in Sect. 20.3.2 of this chapter, as well as the case study summarised in Sect. 20.4, form part of the PhD work of Kostas Gkatzogias, carried out under the supervision of the author at City, University of London. Kostas, and also Yannis Gidaris, have also contributed to the application of the Multi-modal Direct-Displacement Based Design approach before starting their PhD, when they were still MSc students at the Aristotle University of Thessaloniki. It was a pleasure for the author to work with Kostas over these years and his contribution to all these developments is gratefully acknowledged herein. Thanks are also due to the members of the BSI Panel (‘Mirror group’) for EC8-2 (led by the author) that have contributed to the compilation of UK comments, some of which are included in Sect. 20.2.3, in particular Stergios Mitoulis (Surrey University), John Lane (RSSB), and, again, Kostas Gkatzogias.
Publisher Copyright:
© Springer International Publishing AG, part of Springer Nature 2018.
PY - 2018
Y1 - 2018
N2 - A critical overview is provided of current trends in codes for seismic design of bridges, with emphasis on European practice. It is discussed whether the current Eurocode 8-2 provisions are performance-based and what, if anything, is really missing or lagging behind the pertinent state-of-the-art. Two different approaches recently proposed by the author for performance-based design (PBD) of bridges are presented and the feasibility of incorporating them in the next generation of codes, such as the new EC8-2 (currently in the evolution process), is discussed. The first procedure is in line with the exigencies of ‘direct DBD’ wherein stiffness and subsequently strength of the bridge are determined to satisfy a target displacement profile, with due account of the effect of higher modes. The second procedure is ‘deformation-based design’ wherein local deformations of dissipating components are an integral part of the design; two versions of this procedure are presented, one for bridges with ductile piers and one for seismically isolated bridges. Both PBD procedures are applied to a code-designed bridge and comparisons are made in terms of feasibility, cost, and performance.
AB - A critical overview is provided of current trends in codes for seismic design of bridges, with emphasis on European practice. It is discussed whether the current Eurocode 8-2 provisions are performance-based and what, if anything, is really missing or lagging behind the pertinent state-of-the-art. Two different approaches recently proposed by the author for performance-based design (PBD) of bridges are presented and the feasibility of incorporating them in the next generation of codes, such as the new EC8-2 (currently in the evolution process), is discussed. The first procedure is in line with the exigencies of ‘direct DBD’ wherein stiffness and subsequently strength of the bridge are determined to satisfy a target displacement profile, with due account of the effect of higher modes. The second procedure is ‘deformation-based design’ wherein local deformations of dissipating components are an integral part of the design; two versions of this procedure are presented, one for bridges with ductile piers and one for seismically isolated bridges. Both PBD procedures are applied to a code-designed bridge and comparisons are made in terms of feasibility, cost, and performance.
UR - http://www.scopus.com/inward/record.url?scp=85045980170&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-75741-4_20
DO - 10.1007/978-3-319-75741-4_20
M3 - Chapter
AN - SCOPUS:85045980170
T3 - Geotechnical, Geological and Earthquake Engineering
SP - 459
EP - 499
BT - Geotechnical, Geological and Earthquake Engineering
PB - Springer Netherlands
ER -