PSI - Issue 44

ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceD rect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 44 (2023) 1204–1211

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. In the last decades, high priority has been given by the research community to the development of low-damage structures, and reparability has become fundamental for minimizing the environmental and economic impact of reconstruction. In this context, the European Research Fund for Coal and Steel (RFCS) project DISSIPABLE was carried out, with the aim to test large-scale structures where the dissipation is concentrated on replaceable components introduced in the structure. In this paper, the performance of a six storey braced steel frame with dissipative systems is analysed. The capacity of withstanding seismic actions relies on Dissipative Replaceable Bracing Connections (DRBrC), used for the brace-column joints. The energy dissipation is ensured by wide hysteresis loops experienced by DRBrC, whose configuration enables an easy replacement after a medium-high intensity earthquake. Results of a wide experimental test campaign on full-scale structures and numerical analyses on refined models are presented and compared. In particular, experimental data were used to validate and to calibrate the simplified numerical laws used to represent the cyclic performance of the dissipative components and it was proved the effectiveness of using a simplified formulation from both a theoretical and a practical point of view. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Type your keywords here, separated by semicolons ; In the last decades, high priority has been given by the research community to the development of low-damage structures, and reparability has become fundamental for mi imizi g the nvironmental and econ mic impact of rec nstruction. In this cont xt, the European Research Fund for Coal and Steel (RFCS) project DISSIPABLE was carried out, wi h th aim o test large-scale struc ures where the dis ipation is concentrated on r placeable components introduced in the structure. In t is paper, he perform nce of a six storey braced steel frame with dissipativ syst ms is analys d. The capacity of withstanding seismic actions r lies on Dissipat ve Replaceabl Bracing Connection (DRBrC), used for the brace-column joints. The energy dissipation is ensured by wide hysteresis loo s experienced by DRBrC, whose configuration enables an easy replacement after a me ium-h gh ntensity earthquake. R sult of a wide xperimental test campaign on full-scale structures a d num rical analyses on refined models ar presented and compared. In particular, exp rimental data were used to validate and to calibrate the simplified numerical law used to represent the cyclic perfo mance of the dissipative compon nts and it was proved the effectiveness of using a simplified formulation from both a theoretical and a practical point of view. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review u der responsibility of h scientific committe of the XIX ANIDIS C nfere ce, Seismic Engineering in Italy K ywords: Type your keywords here, separated by semicolons ; 1. Introduction Steel braced frames, such as Concentric Braced Frames (CBF) and Eccentric Braced Frames (EBF) are widely used XIX ANIDIS Conference, Seismic Engineering in Italy Experimental and numerical assessment of a steel frame equipped with Dissipative Replaceable Bracing Connections Francesca Mattei a* , Giulia Giuliani b , Roberto Andreotti b , Silvia Caprili a , Nicola Tondini b a Department of Civil and Industrial Engineering (DICI), University of Pisa, Largo L. Lazzarino 1, 56122 Pisa, Italy b Department of Civil, Environmental and Mechanical Engineering University of Trento, Via Mesiano 77, 38123, Trento, Italy XIX ANIDIS Conference, Seismic Engineering in Italy Experimental and numerical assessment of a steel frame equipped with Dissipative Replaceable Bracing Connections Francesca Mattei a* , Giulia Giuliani b , Roberto Andreotti b , Silvia Caprili a , Nicola Tondini b a Department of Civil and Industrial Engineering (DICI), University of Pisa, Largo L. Lazzarino 1, 56122 Pisa, Italy b Departmen of Civil, Environmental and Mechanical Engineeri g University of Trent , Via Mesiano 77, 38123, Trento, Italy Abstract Abstract 1. Introduction Steel braced frames, such as Concentric Braced Frames (CBF) and Eccentric Braced Frames (EBF) are widely used

* Corresponding author. Tel.: +39-050-22-18-246 francesca.mattei@ing.unipi.it * Corresponding author. Tel.: +39-050-22-18-246 franc ca.mattei@ing.unipi.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.155