Seismic retrofitting of existing structures can be obtained by means of either member-level techniques, considered for enhancing capacity of under-designed members, or structure-level interventions adopted as new sub-systems in order to reduce seismic demand on the structure as a whole. This paper presents the key features of a procedure, based on a genetic algorithm, intended at selecting the optimal retrofitting solution among the technically feasible combinations of member- and structure-level techniques. At the current state of implementation, the proposed procedure takes into account confinement with Fiber-Reinforced Polymers (FRPs) as a member-level technique, while X-shaped steel bracings are considered as structure-level interventions.

Topology and sizing optimization of steel bracing systems for seismic retrofitting of existing RC structures

Roberto Falcone;Ciro Faella;Carmine Lima;Enzo Martinelli
2017-01-01

Abstract

Seismic retrofitting of existing structures can be obtained by means of either member-level techniques, considered for enhancing capacity of under-designed members, or structure-level interventions adopted as new sub-systems in order to reduce seismic demand on the structure as a whole. This paper presents the key features of a procedure, based on a genetic algorithm, intended at selecting the optimal retrofitting solution among the technically feasible combinations of member- and structure-level techniques. At the current state of implementation, the proposed procedure takes into account confinement with Fiber-Reinforced Polymers (FRPs) as a member-level technique, while X-shaped steel bracings are considered as structure-level interventions.
2017
9788885522008
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4714914
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