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 ScienceD rect Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 44 (2023) 713–720

© 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. Abstract The structural collapses occurred in recent years in Italy have highlighted the need for maintenance on road bridges. To ensure a uniform risk management system, guidelines and related operating instructions have been issued for classification, safety assessment and monitoring of existing bridges. The central focus of the approach is the determination, for each bridge, of the so-called "Overall attention class" that derives from the combination of four partial attention classes that covers: structural and foundational risk, seismic risk, landslide risk and hydraulic risk. This work concerns the identification and subsequent classification of landslide risk for existing bridges. An analysis of the calculation parameters of the attention class relating to hydrogeological risk is illustrated, in order to optimize the evaluations by limiting the subjectivity in the processing. The work therefore presents some methods to determine the propensity for failure of the investigated area in order to avoid incorrect execution of the risk analysis and a proposal to improve the guidelines indicating some innovative methods to estimate the parameters necessary for determining the level of hazard associated with the landslide attention class. © 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: Bridge Management System, Italian Bridge Guidelines, Landslide Risk, Hydrogeological risk, Failure Propensity XIX ANIDIS Conference, Seismic Engineering in Italy “Guidelines for the classification and management of risk, for the evaluation of safety and for the monitori g of existing bridges”. Critical analysis and identificati of i novative methods to improve the classifi ti f la dslide risk. Brunella Cutrone a , Walter Salvatore b , Emanuele Renzi c , Galileo Tamasi c * a Master Degree Student, University of Rome, La Sapienza, Piazzale Aldo Moro, 5 – 00185 – Roma, Italy b University of Pisa, Largo Lucio Lazzarino – 50126 – Pisa, Italy c National Safety Agency for Safety of Railway and Road infrastructures, Viale del Policlinico,2 – 00185 – Roma, Italy Abstract The structural collapses occurred in recent years in Italy have highlighted the need for maintenance on road bridges. o ens re a uniform risk management syst m, guide ines and re ated operating instruct ons hav been issue for classification, safety a sessment and monitorin of exi ting bridg s. The central fo us of the approach is the determination, for each bridge, of the so-called "Overall a tention cla s" t at derives from the combination of four partial attention classes that covers: structural and foundational risk, seismic risk, landslide risk and hydraulic risk. This work concerns the identification and subsequent classific tion of landslide risk for existing bridges. An analy is of the calculation paramet rs of the attention class relating to hydrogeological risk is illustrated, in order to optimize the evaluations by limiting the subj c ivity i the processing. T e work therefore pre ents som metho s to deter n propensity for failure of the invest gated area in order to avoid inco rect ex cution f the risk analysis and a proposal to improve the guidelines indic ting some innova ive methods to estimate the parameters ece sary for determining the le l of hazard assoc ated with the landslide att ntion cla s. © 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 committe of the XIX ANIDIS C nference, Seismic Engineering in Italy Keywords: Bridge Management System, Italian Bridge Guidelines, Landslide Risk, Hydrogeological risk, Failure Propensity XIX ANIDIS Conference, Seismic Engineering in Italy “Guidelines for the classification and management of risk, for the evaluation of safety and for the monitoring of existing bridges”. Critical analysis and identification of innovative methods to improve the classification of landslide risk. Brunella Cutrone a , Walter Salvatore b , Emanuele Renzi c , Galileo Tamasi c * a Master Degree Student, University of Rome, La Sapienza, Piazzale Aldo Moro, 5 – 00185 – Roma, Italy b University of Pisa, Largo Lucio Lazzarino – 50126 – Pisa, Italy c National Safety Agency for Safety of Railway and Road infrastructures, Viale del Policlinico,2 – 00185 – Roma, Italy

* Corresponding author. Tel.: +39(320)6197910; E-mail address: galileo.tamasi@ansfisa.gov.it * Corresponding author. Tel.: +39(320)6197910; E-mail address: galileo.tamasi@ansfisa.gov.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.2023.01.093