PSI - Issue 62

Ettore De La Grennelais et al. / Procedia Structural Integrity 62 (2024) 763–772 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

764

2 2

Author name / Structural Integrity Procedia 00 (2019) 000 – 000

This experience is representative as it describes some of the typical problems encountered during the verification of a historic steel bridge. The paper can be useful to other designers who are faced with similar situations, considering the large number of historic bridges currently present on Italian territory and the need to preserve them while ensuring their safety and functionality. What presented in the following has been developed within the scope of Level 4 assessments as outlined in the Guidelines for the classification and management of risk, safety assessment, and monitoring of existing bridges. © 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: Historic Bridge, Steel Structure, Guidelines, Modelling, FE Analysis, Risk Assessment 1. Introduction The following is an illustration of the case study concerning Level 4 Assessments according to the “ Guidelines for Classification and Management of Risk, Safety Assessment, and Monitoring of Existing Bridges ” (henceforth, the Guidelines ) (Ministero delle infrastrutture e dei trasporti, 2022) for the Bersaglieri Bridge. The structure accommodates the SS14 state road at kilometer 34+011, connecting the municipalities of San Donà di Piave and Musile di Piave in the province of Venice. From a structural standpoint, the bridge consists of 4 isostatic spans with a length of 53 meters in a steel truss structure. The spans rest on abutments and piers in a masonry structure. This experience is representative as it describes some of the typical problems encountered during the verification of a historic steel bridge. The paper can be useful to other designers who are faced with similar situations, considering the large number of historic bridges currently present on Italian territory and the need to preserve them while ensuring their safety and functionality. What presented in the following has been developed within the scope of Level 4 assessments as outlined in the Guidelines for the classification and management of risk, safety assessment, and monitoring of existing bridges. © 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: Historic Bridge, Steel Structure, Guidelines, Modelling, FE Analysis, Risk Assessment 1. Introduction The following is an illustration of the case study concerning Level 4 Assessments according to the “ Guidelines for Classification and Management of Risk, Safety Assessment, and Monitoring of Existing Bridges ” (henceforth, the Guidelines ) (Ministero delle infrastrutture e dei trasporti, 2022) for the Bersaglieri Bridge. The structure accommodates the SS14 state road at kilometer 34+011, connecting the municipalities of San Donà di Piave and Musile di Piave in the province of Venice. From a structural standpoint, the bridge consists of 4 isostatic spans with a length of 53 meters in a steel truss structure. The spans rest on abutments and piers in a masonry structure. © 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

Table 1. Main characteristics of Bersaglieri Bridge. Table 1. Main characteristics of Bersaglieri Bridge.

Identification Year of construction: Identification Year of construction: Road:

1950 1950

SS14 Venezia Giulia SS14 Venezia Giulia N45.625446° - E12.562974° N45.625446° - E12.562974° 211.60 m

Road: Coordinate: Total length: Coordinate: Total length: Number of spans: Number of spans: Span length:

Extent Extent

211.60 m 4

4 53 m

Span length: Width:

53 m 12.74 m 6.54 m 12.74 m 6.54 m

Width: Usable roadway width: Usable roadway width: Substructure:

Structure Structure

Masonry abutments, piers, and pedestals. Masonry abutments, piers, and pedestals. Steel truss structure.

Substructure: Superstructure: Superstructure:

Steel truss structure.

Fig. 1. The Bersaglieri Bridge in San Donà in the province of Venice. Fig. 1. The Bersaglieri Bridge in San Donà in the province of Venice.