Starting from an already existing gradient-based method for the performance-based seismic design (PBSD) of reinforced concrete (RC) structures, in which performance objectives are formulated in terms of maximum accepted mean annual frequency (MAF) of exceedance for multiple limit states, some improvements are presented. The method allows for the computation of the values of selected independent design variables (beams and column cross-sections and reinforcement) leading to the attainment or non-exceedance of pre-defined MAFs for multiple limit states. General geometric, as well as capacity design constraints are duly accounted for. The procedure is applied to a 15-storey plane frame building and validation is conducted against results in terms of drift profiles and MAF of exceedance, obtained by multiple stripe analysis with records selected to match conditional spectra. Results show that the method is suitable for PBSD of RC structures with explicit targets in terms of desired risk levels.

An equivalent linear procedure for probabilistic displacement-based design of RC structures under earthquake / Franchin, Paolo; Mollaioli, Fabrizio; Petrini, Francesco. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 199:(2017), pp. 3570-3575. ((Intervento presentato al convegno 10th International Conference on Structural Dynamics, EURODYN 2017 tenutosi a Facoltà ICI, Sapienza Roma nel 2017 [10.1016/j.proeng.2017.09.522].

An equivalent linear procedure for probabilistic displacement-based design of RC structures under earthquake

Franchin, Paolo
Conceptualization
;
Mollaioli, Fabrizio;Petrini, Francesco
Software
2017

Abstract

Starting from an already existing gradient-based method for the performance-based seismic design (PBSD) of reinforced concrete (RC) structures, in which performance objectives are formulated in terms of maximum accepted mean annual frequency (MAF) of exceedance for multiple limit states, some improvements are presented. The method allows for the computation of the values of selected independent design variables (beams and column cross-sections and reinforcement) leading to the attainment or non-exceedance of pre-defined MAFs for multiple limit states. General geometric, as well as capacity design constraints are duly accounted for. The procedure is applied to a 15-storey plane frame building and validation is conducted against results in terms of drift profiles and MAF of exceedance, obtained by multiple stripe analysis with records selected to match conditional spectra. Results show that the method is suitable for PBSD of RC structures with explicit targets in terms of desired risk levels.
2017
10th International Conference on Structural Dynamics, EURODYN 2017
Capacity design; equivalent linear analysis; mean annual rate; SAC/FEMA; secant stiffness
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
An equivalent linear procedure for probabilistic displacement-based design of RC structures under earthquake / Franchin, Paolo; Mollaioli, Fabrizio; Petrini, Francesco. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - ELETTRONICO. - 199:(2017), pp. 3570-3575. ((Intervento presentato al convegno 10th International Conference on Structural Dynamics, EURODYN 2017 tenutosi a Facoltà ICI, Sapienza Roma nel 2017 [10.1016/j.proeng.2017.09.522].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1087171
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