PSI - Issue 62

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Procedia Structural Integrity 62 (2024) 789–795 Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

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.2024.09.107 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 1. Introduction Many riveted roadway and railway steel bridges have been constructed in Europe between the early 19 th and the mid-20 th centuries. Nowadays, the hot-driven riveting process is considered a dated construction technology used only to repair damaged connections in existing railway construction. However, such structures are still in service, and due * Corresponding author. Tel.: +39-340-6285872. E-mail address: alettieri@unisa.it * Corresponding author. Tel.: +39-340-6285872. E-mail address: alettieri@unisa.it II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24) Code-conforming fatigue life assessment of riveted lap shear joints Annarosa Lettieri a, *, Massimo Latour a, , Gianvittorio Rizzano a, , Aldo Milone b, , Mario D’Aniello b, , Raffaele Landolfo b, a University of Salerno, Department of Civil Engineering, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy b University of Naples “Federico II”, via forno vecchio, 36, 80134, Naples, Italy Abstract Recent studies highlighted the importance of an accurate assessment of the remaining life of historical steel riveted bridges to plan and design their maintenance. Such structures are usually prone to fatigue damage due to the high number of cumulated cyclic stresses over their service life. Currently, limited guidelines are available for evaluating the fatigue strength of riveted connections. According to the JRC-ECCS document Assessment of Existing Steel Structures: Recommendations for Estimation of Remaining Fatigue Life , the fatigue capacity of riveted connections should be evaluated through the fatigue class 71, whose prediction may be excessively conservative. Therefore, this paper summarizes the results of a theoretical study and an experimental campaign aimed at characterizing the high-cycle fatigue of riveted shear splices. Experimental fatigue results have been collected from the literature, and a database has been built, including material property, loading condition, riveting process, and geometry information. The collected data and those obtained from the performed tests have been statistically elaborated to investigate the influence of such parameters on their fatigue strength. Finally, comparisons with the recommended fatigue classes are provided to discuss their Code-conforming fatigue life assessment of riveted lap shear joints Annarosa Lettieri a, *, Massimo Latour a, , Gianvittorio Rizzano a, , Aldo Milone b, , Mario D’Aniello b, , Raffaele Landolfo b, a University of Salerno, Department of Civil Engineering, Via Giovanni Paolo II, 132, 84084, Fisciano, Italy b University of Naples “Federico II”, via forno vecchio, 36, 80134, Naples, Italy Abstract Recent studies highlighted the importance of an accurate assessment of the remaining life of historical steel riveted bridges to plan and design their maintenance. Such structures are usually prone to fatigue damage due to the high number of cumulated cyclic stresses over their service life. Currently, limited guidelines are available for evaluating the fatigue strength of riveted connections. According to the JRC-ECCS document Assessment of Existing Steel Structures: Recommendations for Estimation of Remaining Fatigue Life , the fatigue capacity of riveted connections should be evaluated through the fatigue class 71, whose prediction may be excessively conservative. Therefore, this paper summarizes the results of a theoretical study and an experimental campaign aimed at characterizing the high-cycle fatigue of riveted shear splices. Experimental fatigue results have been collected from the literature, and a database has been built, including material property, loading condition, riveting process, and geometry information. The collected data and those obtained from the performed tests have been statistically elaborated to investigate the influence of such parameters on their fatigue strength. Finally, comparisons with the recommended fatigue classes are provided to discuss their suitability in predicting the fatigue strength of the investigated riveted connections. Keywords: Steel Bridges; Riveted Connection; Fatigue Strength; S - N curve; Experimental tests. 1. Introduction Many riveted roadway and railway steel bridges have been constructed in Europe between the early 19 th and the mid-20 th centuries. Nowadays, the hot-driven riveting process is considered a dated construction technology used only to repair damaged connections in existing railway construction. However, such structures are still in service, and due © 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 suitability in predicting the fatigue strength of the investigated riveted connections. Keywords: Steel Bridges; Riveted Connection; Fatigue Strength; S - N curve; Experimental tests. II Fabre Conference – Existing bridges, viaducts and tunnels: research, innovation and applications (FABRE24)