eprintid: 205
rev_number: 13
eprint_status: archive
userid: 2
dir: disk0/00/00/02/05
datestamp: 2015-02-17 08:55:34
lastmod: 2015-04-27 08:32:23
status_changed: 2015-04-27 07:27:35
type: conference_item
metadata_visibility: show
creators_name: Priestley, Nigel
corp_creators: European School for Advanced Studies in Reduction of Seismic Risk, Via Ferrata, 27100 Pavia, Italy
title: Seismological information for displacement-based design - a structural engineer's wish list
ispublished: pub
subjects: SS
divisions: EPOS-P
full_text_status: public
pres_type: paper
abstract: With conventional force-based seismic design, the most important information for the structural 
engineer  has  been  the  effective  peak  ground  acceleration.    This  number  is  comparatively 
insignificant in displacement-based or performance-based seismic design, where the key data are 
peak spectral response displacement, and the “corner” period at which this occurs.   There appears 
to  be  a disagreement  between  seismologists  on opposite sides of  the Atlantic  about  these data, 
which the structural engineer views with concern, since ductile structural response will often be in 
this  region  of  the  corner  period.  Dependable  information  on  the  reduction  of  displacement 
response with damping or ductility is also needed for design approaches utilizing secant stiffness 
characterization.  Other  areas  needing  clarification  include  the  issue  of  how  to  develop 
accelerograms for time-history analysis compatible with the design seismicity using an acceptably 
small  number  of  accelerograms,  and  how  to  reconcile  the  statistical  nature  of  seismicity 
characterization with the structural engineer’s preference for deterministic analysis.  There is some 
evidence that a consequence of this is invalid averaging of response characteristics by structural 
engineers.
date: 2006-09
date_type: published
pagerange: 1-12
event_title: First European Conference on Earthquake Engineering and Seismology
event_location: Geneva
event_dates: 03.09.2006-08.09.2006
event_type: conference
refereed: TRUE
access_IS-EPOS: unlimited
citation:   Priestley, Nigel  (2006) Seismological information for displacement-based design - a structural engineer's wish list.  In: First European Conference on Earthquake Engineering and Seismology, 03.09.2006-08.09.2006, Geneva.     
document_url: https://episodesplatform.eu/eprints/205/1/paper4001.pdf