PSI - Issue 64

First page Table of contents Previous page 1839 Next page Last page

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000

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

ScienceDirect

Procedia Structural Integrity 64 (2024) 983–990

SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Seismic retrofit strategy for existing steel buildings with CBFs Sabatino Di Benedetto a *, Massimo Latour a , Antonella Bianca Francavilla a , Gianvittorio Rizzano a , Roberto Tartaglia b , Mario D’Aniello c , Raffaele Landolfo c , Atsushi Sato d SMAR 2024 – 7th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures Seismic retrofit strategy for existing steel buildings with CBFs Sabatino Di Benedetto a *, Massimo Latour a , Antonella Bianca Francavilla a , Gianvittorio Rizzano a , Roberto Tartaglia b , Mario D’Aniello c , Raffaele Landolfo c , Atsushi Sato d

a Department of Civil Engineering, University of Salerno, Fisciano, Italy b Department of Engineering (DING), University of Sannio, Benevento, Italy c Department of Civil Engineering, University of Naples Federico II, Naples, Italy d Nagoya Institute of Technology, Nagoya, Japan a Department of Civil Engineering, University of Salerno, Fisciano, Italy b Department of Engineering (DING), University of Sannio, Benevento, Italy c Department of Civil Engineering, University of Naples Federico II, Naples, Italy d Nagoya Institute of Technology, Nagoya, Japan

Abstract Recent advancements in materials engineering have introduced new possibilities in the field of Civil Engineering. A noteworthy example is the development of metal foam, an innovative material with a favourable weight-to-stiffness ratio and excellent damping and energy dissipation properties. The increasing interest in the characteristics of metal foam has motivated researchers to explore innovative solutions for dissipative dampers. An example of such application regards the use of dissipative aluminium foam dampers in steel Concentrically-Braced-Frames (CBFs). In this bracing system, a steel rod or tube is connected to an aluminium foam damper which provides the structure with energy dissipation capacity when subjected to compression forces. A wedge device is employed to absorb the permanent deformations of the aluminium foam, preventing any pinching behaviour in the overall response. This research offers an opportunity to assess the effectiveness of such a solution by studying an existing two-storey steel structure. The structural design includes pinned frames that support gravity loads, while CBFs are responsible for resisting horizontal forces generated by wind and seismic actions. However, as this structure was built in the early '80s, predating the availability of seismic design rules, it requires retrofitting interventions to improve its seismic performance. This manuscript presents the application of dissipative aluminium foam dampers for the seismic retrofitting of the analysed building. © 2024 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 SMAR 2024 Organizers Keywords: Steel structure; Concentrically Braced Frames (CBFs); seismic retrofitting; metal foam Abstract Recent advancements in materials engineering have introduced new possibilities in the field of Civil Engineering. A noteworthy example is the development of metal foam, an innovative material with a favourable weight-to-stiffness ratio and excellent damping and energy dissipation properties. The increasing interest in the characteristics of metal foam has motivated researchers to explore innovative solutions for dissipative dampers. An example of such application regards the use of dissipative aluminium foam dampers in steel Concentrically-Braced-Frames (CBFs). In this bracing system, a steel rod or tube is connected to an aluminium foam damper which provides the structure with energy dissipation capacity when subjected to compression forces. A wedge device is employed to absorb the permanent deformations of the aluminium foam, preventing any pinching behaviour in the overall response. This research offers an opportunity to assess the effectiveness of such a solution by studying an existing two-storey steel structure. The structural design includes pinned frames that support gravity loads, while CBFs are responsible for resisting horizontal forces generated by wind and seismic actions. However, as this structure was built in the early '80s, predating the availability of seismic design rules, it requires retrofitting interventions to improve its seismic performance. This manuscript presents the application of dissipative aluminium foam dampers for the seismic retrofitting of the analysed building. © 2024 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 SMAR 2024 Organizers Keywords: Steel structure; Concentrically Braced Frames (CBFs); seismic retrofitting; metal foam © 2024 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 SMAR 2024 Organizers

* Corresponding author. E-mail address: sdibenedetto@unisa.it * Corresponding author. E-mail address: sdibenedetto@unisa.it

2452-3216 © 2024 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 SMAR 2024 Organizers 2452-3216 © 2024 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 SMAR 2024 Organizers

Made with FlippingBook Digital Proposal Maker