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A new seismic design method for steel structures

A new seismic design method for steel structures
A new seismic design method for steel structures
A 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 is proposed. The 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 method are: (1) it treats both drift and ductility demands as input variables; (2) it does not use a substitute single degree of freedom system; (3) it makes use of conventional elastic response spectrum analysis and design; (4) it includes the influence of the number of storeys; (5) it recognizes the influence of the type of the lateral load resisting system (moment resisting frame or concentrically braced frame); (6) it recognizes the influence of geometrical (setbacks) or mass irregularities
13
161-171
Springer Dordrecht
Karavasilis, T.L.
15850eb0-6af4-4b6e-bab4-d5bde281b769
Beskos, D.
31302dff-1a87-4500-bff3-568be6000e3e
Bazeos, N.
a7030733-6d22-4723-860c-71f0e0d4a53c
Fardis, M.N.
Karavasilis, T.L.
15850eb0-6af4-4b6e-bab4-d5bde281b769
Beskos, D.
31302dff-1a87-4500-bff3-568be6000e3e
Bazeos, N.
a7030733-6d22-4723-860c-71f0e0d4a53c
Fardis, M.N.

Karavasilis, T.L., Beskos, D. and Bazeos, N. (2010) A new seismic design method for steel structures. In, Fardis, M.N. (ed.) Advances in Performance-Based Earthquake Engineering. (Geotechnical, Geological and Earthquake Engineering, 13) Dordrecht, NL. Springer Dordrecht, pp. 161-171. (doi:10.1007/978-90-481-8746-1_15).

Record type: Book Section

Abstract

A 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 is proposed. The 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 method are: (1) it treats both drift and ductility demands as input variables; (2) it does not use a substitute single degree of freedom system; (3) it makes use of conventional elastic response spectrum analysis and design; (4) it includes the influence of the number of storeys; (5) it recognizes the influence of the type of the lateral load resisting system (moment resisting frame or concentrically braced frame); (6) it recognizes the influence of geometrical (setbacks) or mass irregularities

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Published date: January 2010
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 402451
URI: http://eprints.soton.ac.uk/id/eprint/402451
PURE UUID: 77988f3d-3ff3-4448-bc6c-c7f31991bcff
ORCID for T.L. Karavasilis: ORCID iD orcid.org/0000-0003-2553-5389

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Date deposited: 09 Nov 2016 16:43
Last modified: 15 Mar 2024 03:18

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Contributors

Author: T.L. Karavasilis ORCID iD
Author: D. Beskos
Author: N. Bazeos
Editor: M.N. Fardis

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