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Type
Lecture

Current trends in seismic designs, London

Event organised by Society for Earthquake and Civil Engineering Dynamics

Date
24 September 2014
Time
19:00 - 21:30 BST (GMT+1)
Location
Institution of Civil Engineers
One Great George Street
Westminster
London
, SW1P 3AA
United Kingdom

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Overview

The lecture focusses on two procedures for performance-based seismic design of bridges, each following one of the previously described approaches.

In the first one, the ‘direct displacement based design approach’, pioneered by Priestley and Kowalsky and involving elastic analysis and over-damped elastic spectra, is extended with a view to making it applicable to a broad spectrum of bridge systems, including those affected by higher modes, and also introducing additional design criteria not previously used in this method.

The second method involves more advanced analysis tools, i.e. response-history analysis (for different levels of ground motion intensity) of bridge models wherein any regions that are expected to yield under the selected seismic actions are modelled as inelastic, whereas the rest of the bridge is modelled as elastic; the initial analysis (relevant to service conditions) is an elastic one.

Speaker

  • Andreas Kappos

For more information please contact:

Greg James