Using targeted risk in seismic design codes: a summary of the state of the art and outstanding issues

Research output: Contribution to conferenceKeynote

Abstract

Over the past decade there have been various studies on the development of seismic design maps using the principle of “risk-targeting”. The basis of these studies is the calculation of the seismic risk by convolution of a seismic hazard curve for a given location (derived using probabilistic seismic hazard analysis) with a fragility curve for a code-design structure (ideally derived from structural modelling). The ground-motion level that the structure is designed for is chosen so that the structure has a pre-defined probability of achieving a certain performance level (e.g. non-collapse). At present seismic design maps developed using this approach are only applied in practice widely in the US but studies have also been conducted on a national basis for France, Romania and Indonesia, as well as for the whole of Europe using the European Seismic Hazard Model. This short article presents a review of the state of the art of this technique, highlighting efforts to constrain better some of the input parameters. In addition, we discuss the difficulties of applying this method in practice as well as possible paths forward.

Conference

Conference6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology
Abbreviated title6CNIS and 2CNISS
CountryRomania
CityBucharest
Period14/06/1717/06/17

Fingerprint

Seismic design
seismic design
seismic hazard
Hazards
Convolution
ground motion
targeting
modeling
state of the art
code

Keywords

  • seismic hazard
  • earthquake engineering
  • fragility curves
  • risk targeting
  • design

Cite this

Douglas, J., & Gkimprixis, A. (2017). Using targeted risk in seismic design codes: a summary of the state of the art and outstanding issues. 3-10. 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, Bucharest, Romania.
Douglas, John ; Gkimprixis, Athanasios. / Using targeted risk in seismic design codes : a summary of the state of the art and outstanding issues. 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, Bucharest, Romania.8 p.
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Douglas, J & Gkimprixis, A 2017, 'Using targeted risk in seismic design codes: a summary of the state of the art and outstanding issues' 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, Bucharest, Romania, 14/06/17 - 17/06/17, pp. 3-10.

Using targeted risk in seismic design codes : a summary of the state of the art and outstanding issues. / Douglas, John; Gkimprixis, Athanasios.

2017. 3-10 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, Bucharest, Romania.

Research output: Contribution to conferenceKeynote

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Douglas J, Gkimprixis A. Using targeted risk in seismic design codes: a summary of the state of the art and outstanding issues. 2017. 6th National Conference on Earthquake Engineering and 2nd National Conference on Earthquake Engineering and Seismology, Bucharest, Romania.