PSI - Issue 62

ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ

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

Procedia Structural Integrity 62 (2024) 145–152

II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) A preliminary investigation on material properties of existing prestressed concrete beams Ranaldo Antonella a *, Lo Monaco Anna a , Palmiotta Annarita b , D’Amato Michele a , Lippolis Antonio c , Vacca Vitantonio c , Sarno Rosario c a Department of European and Mediterranean Cultures, Architecture, Environment and Cultural Heritage (DiCEM), University of Basilicata, Via Lanera 20, Matera 75100, Italy b Department of Structural and Geotechnics Engineering (DISG), Sapienza University of Rome, Via Eudossiana 18, Rome 00184, Italy c Anas S.p.A., Struttura Territoriale Basilicata, Via Nazario Sauro Snc, Potenza 85100, Italy Abstract This paper reports some preliminary results of an ongoing research activity addressed to collect and to elaborate the main mechanical properties of materials of pre- and post-tensioned concrete girder bridges. In particular, in this work data samples is obtained by analyzing design documents of a stock of existing bridges realized in Basilicata (south of Italy). At first, the paper presents a proposal on how information available is collected. Then, results of the statistical elaborations on the samples gathered are shown, in order to provide useful support in estimating the mechanical properties of the materials used in the bridges typologies considered in this study. © 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 Scientific Board Members Keywords: pre-tensioned concrete beams; post-tensioned concrete beams; existing bridges; knowledge; material properties; statistical analysis. 1. Introduction Prestressed Concrete (PC) is a concrete subjected to compressive forces provoking internal stresses for counteracting external loads effects to a desired degree. It may be obtained either pre- or post-tensioning concrete II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) A preliminary investigation on material properties of existing prestressed concrete beams Ranaldo Antonella a *, Lo Monaco Anna a , Palmiotta Annarita b , D’Amato Michele a , Lippolis Antonio c , Vacca Vitantonio c , Sarno Rosario c a Department of European and Mediterranean Cultures, Architecture, Environment and Cultural Heritage (DiCEM), University of Basilicata, Via Lanera 20, Matera 75100, Italy b Department of Structural and Geotechnics Engineering (DISG), Sapienza University of Rome, Via Eudossiana 18, Rome 00184, Italy c Anas S.p.A., Struttura Territoriale Basilicata, Via Nazario Sauro Snc, Potenza 85100, Italy Abstract This paper reports some preliminary results of an ongoing research activity addressed to collect and to elaborate the main mechanical properties of materials of pre- and post-tensioned concrete girder bridges. In particular, in this work data samples is obtained by analyzing design documents of a stock of existing bridges realized in Basilicata (south of Italy). At first, the paper presents a proposal on how information available is collected. Then, results of the statistical elaborations on the samples gathered are shown, in order to provide useful support in estimating the mechanical properties of the materials used in the bridges typologies considered in this study. © 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 Scientific Board Members Keywords: pre-tensioned concrete beams; post-tensioned concrete beams; existing bridges; knowledge; material properties; statistical analysis. 1. Introduction Prestressed Concrete (PC) is a concrete subjected to compressive forces provoking internal stresses for counteracting external loads effects to a desired degree. It may be obtained either pre- or post-tensioning concrete © 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 Scientific Board Members

* Corresponding author. Tel.: +39-348-529-8943. E-mail address: antonella.ranaldo@unibas.it * Corresponding author. Tel.: +39-348-529-8943. E-mail address: antonella.ranaldo@unibas.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 Scientific Board Member s 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 Scientific Board Member s

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 Scientific Board Members 10.1016/j.prostr.2024.09.027