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 Sci nceDire t Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 44 (2023) 2326–2333

© 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 transversal direction of the structure, so-called cross-aisle direction, diagonals are connected to the upright through a single bolt, and the leading failure mechanism of the connection is plastic ovalization, due to the low thickness of the diagonal element. The bearing resistance is usually far lower than the resistance of the element. Given the difficulties of increasing the bearing resistance without also increasing the resistance of the element, the idea is to exploit the ductility associated to the plastic ovalization and to design all the other members of the upright frame to be over-resistant with respect to that. The actual behaviour of the diagonal-upright system is validated through the execution of an experimental campaign where tensile and compression monotonic tests are performed, as well as cyclic ones, both on short and full-length elements. Various configurations of the connections are tested to see how the geometric parameters (i.e., dimension of the holes for the connection and their position) affect the resistance of the connection and the behavior of the diagonal. © 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: Thin walled profiles, reduced sections, Automated Rack Supported Warehouses, bearing resistance. Abstract With the aim of proposing possible solutions for seismic-resistant Automated Rack Supported Warehouses (ARSWs), this paper studies the p ssibility of con dering plastic val zat on of he diag n l-to-upright bolted conn ction to increase t e global eismic performance. In the transve sal direction of the structure, so-called cross-aisle direction, diagonals are connected to the upright through a single bolt, and the le ding failure mechanism of the onnecti n is p ast c ovalizat on, due to the low hickness of the diag nal element. The bearing r sistance is usually far lower than th resistance of the eleme t. Given the difficulties of increasing the b ari g resistance withou also incre sing the resis ance of the elem nt, id a is to exploit the ductility asso iated to the plastic ovalization and to desig all the othe members of the upright frame to be over-resis ant wi h respect to tha . T actual behaviour of the diagonal-upright system is validated through the execution of an experimental cam aign w ere tensile and compression monotonic tests are performed, as well as cyclic ones, both o short and full-length elements. Various nfigurations of the conn ctions are tested to see ho the geometric parameters (i.e., dimension of th holes for the connection and thei p siti n) affect the resi t nce of the connection and the behavio of th diagonal. © 2022 The Authors. Publish d 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 re ponsibility of scientific committe of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Thin walled profiles, reduced sections, Automated Rack Supported Warehouses, bearing resistance. XIX ANIDIS Conference, Seismic Engineering in Italy Experimental validation of plastic ovalization strategy for seismic resistant Automated Rack Supported Warehouses Agnese Natali a *, Francesco Morelli a , Walter Salvatore a , Dimitrios Tsarpalis b , Dimitrios Vamvatsikos b XIX ANIDIS Conference, Seismic Engineering in Italy Experimental validation of plastic ovalization strategy for seismic resistant Automated Rack Supported Warehouses Agnese Natali a *, Francesco Morelli a , Walter Salvatore a , Dimitrios Tsarpalis b , Dimitrios Vamvatsikos b a Department of Industrial and Civil Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy b School of Civil Engineering, National Technical University of Athens, Ir. P lite hniou 9, Zografou 157 80, Greece a Department of Industrial and Civil Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy b School of Civil Engineering, National Technical University of Athens, Ir. Politechniou 9, Zografou 157 80, Greece Abstract With the aim of proposing possible solutions for seismic-resistant Automated Rack Supported Warehouses (ARSWs), this paper studies the possibility of considering plastic ovalization of the diagonal-to-upright bolted connection to increase the global seismic performance.

* Agnese Natali. Tel.: +39-050-22-18-246 E-mail address: agnese.natali@dici.unipi.it * Agnese Natali. Tel.: +39-050-22-18-246 E-mail address: agnese.natali@dici.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.2023.01.297