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Dimensional response analysis of multi-storey regular steel MRFs subjected to pulse-like earthquake ground motions

Dimensional response analysis of multi-storey regular steel MRFs subjected to pulse-like earthquake ground motions
Dimensional response analysis of multi-storey regular steel MRFs subjected to pulse-like earthquake ground motions
An alternative and efficient procedure to estimate the maximum inelastic roof displacement and the maximum inelastic interstory drift ratio along the height of regular multistory steel MRF subjected to pulselike ground motions is proposed. The method and the normalized response quantities emerge from formal dimensional analysis which makes use of the distinct time scale and length scale that characterize the most energetic component of the ground shaking. Such time and length scales emerge naturally from the distinguishable pulses which dominate a wide class of strong earthquake records and can be formally extracted with validated mathematical models published in literature. The proposed method is liberated from the maximum displacement of the elastic single-degree-of-freedom structure since the self-similar master curve which results from dimensional analysis involves solely the shear strength and yield roof displacement of the inelastic multidegree-of-freedom system in association with the duration and acceleration amplitude of the dominant pulse. The estimated inelastic response quantities are in superior agreement with the results from nonlinear time-history analysis than any inelastic response estimation published previously.
0733-9445
921-932
Karavasilis, T.L.
15850eb0-6af4-4b6e-bab4-d5bde281b769
Makris, N.
2b453e8e-926a-47bc-b7d3-1130fc93e332
Bazeos, N.
a7030733-6d22-4723-860c-71f0e0d4a53c
Beskos, D.E.
9fa0ddd7-599f-46b3-953b-0b1950992c87
Karavasilis, T.L.
15850eb0-6af4-4b6e-bab4-d5bde281b769
Makris, N.
2b453e8e-926a-47bc-b7d3-1130fc93e332
Bazeos, N.
a7030733-6d22-4723-860c-71f0e0d4a53c
Beskos, D.E.
9fa0ddd7-599f-46b3-953b-0b1950992c87

Karavasilis, T.L., Makris, N., Bazeos, N. and Beskos, D.E. (2010) Dimensional response analysis of multi-storey regular steel MRFs subjected to pulse-like earthquake ground motions. Journal of Structural Engineering, 136 (8), 921-932. (doi:10.1061/(ASCE)ST.1943-541X.0000193).

Record type: Article

Abstract

An alternative and efficient procedure to estimate the maximum inelastic roof displacement and the maximum inelastic interstory drift ratio along the height of regular multistory steel MRF subjected to pulselike ground motions is proposed. The method and the normalized response quantities emerge from formal dimensional analysis which makes use of the distinct time scale and length scale that characterize the most energetic component of the ground shaking. Such time and length scales emerge naturally from the distinguishable pulses which dominate a wide class of strong earthquake records and can be formally extracted with validated mathematical models published in literature. The proposed method is liberated from the maximum displacement of the elastic single-degree-of-freedom structure since the self-similar master curve which results from dimensional analysis involves solely the shear strength and yield roof displacement of the inelastic multidegree-of-freedom system in association with the duration and acceleration amplitude of the dominant pulse. The estimated inelastic response quantities are in superior agreement with the results from nonlinear time-history analysis than any inelastic response estimation published previously.

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More information

Accepted/In Press date: 24 January 2010
e-pub ahead of print date: 28 January 2010
Published date: August 2010
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 401623
URI: http://eprints.soton.ac.uk/id/eprint/401623
ISSN: 0733-9445
PURE UUID: 7809e3cc-8e9e-45e4-99b1-266c8a18e8dd
ORCID for T.L. Karavasilis: ORCID iD orcid.org/0000-0003-2553-5389

Catalogue record

Date deposited: 20 Oct 2016 15:41
Last modified: 15 Jul 2019 20:00

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