Karavasilis, Theodore L., Bazeos, Nikitas and Beskos, D. E. (2008) A hybrid force/displacement seismic design method for steel building frames. In: 14th World Conference of Earthquake Engineering (14WCEE) , Beijing, China, Oct 12-17, 2008. Published in: Proceedings of the 14th World Conference of Earthquake Engineering (14WCEE) , Vol.1-41

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Abstract

This paper proposes a performance-based seismic design methodology for steel building frames which combines the advantages of the well-known force-based and displacement-based seismic design methods in a
hybrid force/displacement design scheme. The proposed method controls structural performance by first transforming user-specified values of the interstorey drift ratio (non-structural damage) and local ductility
(structural damage) to a target roof displacement and then, calculating the appropriate strength reduction factor
for limiting ductility demands associated with the target roof displacement. The main characteristics of the
proposed method are: (1) treats both drift and ductility demands as input variables for the initiation of the design
process; (2) does not use a substitute single degree of freedom system; (3) makes use of current seismic code
approaches as much as possible (e.g., conventional elastic response spectrum analysis and design); (4) includes the influence of the number of stories; (5) recognises the influence of the type of the lateral load resisting system (moment resisting frame or concentrically braced frame); (6) recognises the influence of geometrical (setbacks) or mass irregularities. A realistic design example serves to demonstrate the advantages of the proposed method over the currently used force-based design procedure.

Item Type:	Conference Item (Paper)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	Proceedings of the 14th World Conference of Earthquake Engineering (14WCEE)
Publisher:	China Scientific Book Services
Official Date:	2008
Dates:	Date Event 2008 Published
Volume:	Vol.1-41
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access
Funder:	University of Patras, Greece, K. Karatheodoris Research Program
Conference Paper Type:	Paper
Title of Event:	14th World Conference of Earthquake Engineering (14WCEE)
Type of Event:	Conference
Location of Event:	Beijing, China
Date(s) of Event:	Oct 12-17, 2008

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