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Performance-based seismic design of steel structures accounting for fuzziness in their joint flexibility

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journal contribution
posted on 05.11.2018 by Alessandro de Luca di Roseto, Alessandro Palmeri, Alistair Gibb
This paper presents a performance-based earthquake engineering framework to explicitly take into account fuzziness in the design parameters, with application to steel structures. Semi-rigidity of column-to-foundation and beam-to-column connections is considered as a relevant example of design parameters that can be conveniently modelled using fuzzy variables. Without lack of generality, their fixity factors are described by means of triangular membership functions, fully defined by lower and upper values of admissibility and their most likely value, i.e. their reference value. For demonstration purposes, the procedure is applied to analyse two different case studies, namely a 5-storey single-bay plane frame and an industrial 3D modular structure. The analyses are performed accounting for the fuzziness of the connections, which is then propagated onto representative engineering demand parameters, within a general performance-based design (PBD) approach.

History

School

  • Architecture, Building and Civil Engineering

Published in

Soil Dynamics and Earthquake Engineering

Volume

115

Issue

December 2018

Pages

799 - 814

Citation

DE LUCA DI ROSETO, A., PALMERI, A. and GIBB, A.G.F., 2018. Performance-based seismic design of steel structures accounting for fuzziness in their joint flexibility. Soil Dynamics and Earthquake Engineering, 115, pp. 799-814.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This paper was accepted for publication in the journal Soil Dynamics and Earthquake Engineering and the definitive published version is available at https://doi.org/10.1016/j.soildyn.2018.09.007

Acceptance date

08/09/2018

Publication date

2018-10-27

Copyright date

2018

ISSN

0267-7261

Language

en

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