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 ScienceDirect Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 44 (2023) 1624–1631

XIX ANIDIS Conference, Seismic Engineering in Italy Dynamic behavior of structural beams made of innovative smart concrete Hasan Borke Birgin a , Antonella D’Alessandro a *, Filippo Ubertini a a Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti, 93 06125 Perugia (PG) Italy XIX ANIDIS Conference, Seismic Engineering in Italy Dynamic behavior of structural beams made of innovative smart concrete Hasan Borke Birgin a , Antonella D’Alessandro a *, Filippo Ubertini a a Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti, 93 06125 Perugia (PG) Italy

Abstract Abstract

© 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. The monitoring of structures and infrastructures is nowadays a pivotal activity for guaranteeing the safety of their users. Environmental conditions and exceptional events could affect their performance and integrity, shorten their service lives and even produce unexpected failures. The development of multifunctional smart structural materials with enhanced or novel properties could help to prevent or reduce damages and collapses. Among other building materials, concrete is particularly suitable for such improvements due to its composite nature. The authors have developed a smart concrete doped with carbon microfibers capable to sense variations of applied strains/stresses. The investigation started from the analysis of the performances of small samples, up to the manufacture of two full-scale RC beams. These applications at realistic scales are crucial for a diffuse use of such smart materials in civil engineering. The paper describes the novel characteristics of full-scale smart concrete beams, investigating their main physical, electrical, and monitoring capabilities. For this purpose, dynamic tests are carried out and discussed. © 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: Smart sensors and monitoring systems; carbon-based fillers; concrete elements; structural health monitoring; carbon microfibers The monitoring of structures and infrastructures is nowadays a pivotal activity for guaranteeing the safety of their users. Environmental conditions and exception l events could affect their perf rman e and integrity, shorten their ervice lives and even produce unexpecte failures. The developm t of multi un tional smart stru tural mate als with hanced or novel properti s could h lp to rev nt or reduce damag s and collapses. Among other building materials, concrete is parti ularly suitable f r such improv ments due to its composite n ture. The author have developed a smart conc ete doped with carbon microfibers capable to sense ariations of applied strains/stresses investigation started from the analysis of the perform nces of small samples, up the manuf cture of two full-scale RC beams. Th se applications at realistic scales are crucial for a diffuse use of such smart materi ls in civil engineering. Th paper describes the novel characteristic of full-scale smart conc ete beams, investigating their in physical, e ctr cal, a d monitoring capabilities. F r this pu pose, dynamic te ts are car ied out and discussed. © 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 C nfere ce, Seismic Engineering in Italy K ywords: Smart sensors a d monitoring systems; carbon-based fillers; concrete elements; structural h alth monitori ; carbo microfibers

1. Introduction 1. Introduction

Real-time state monitoring of civil structures is significant for several reasons. Full-scale structures have great dimensions, and the sensors, for achieving a diffuse sensing system, should be attached on them covering large Real-time state monitoring of civil structures is significant for several reasons. Full-scale structures have great dimensions, and the sens rs, f r achieving a diffuse sensing system, should be attached on them covering large

* Corresponding author. Tel.: +39-075-5853910; fax: +39-075-5853897. E-mail address: antonella.dalessandro@unipg.it * Corresponding author. Tel.: +39-075-5853910; fax: +39-075-5853897. E-mail address: ant nella.dalessandro@unipg.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.2023.01.208