Inspection and Structural Rehabilitation of an Existing Masonry Arch Railway Bridge
Source abstract
Abstract
Masonry arch bridges are important structures of road and rail networks around the world. Over several decades of service life, they suffer deterioration and damage. In order to preserve their functioning, it is necessary to carry out a seismic vulnerability analysis to verify the current level of safety and, if necessary, take action to reach the standard required by current codes. For these reasons, a structural analysis of the existing railway bridge built with masonry arches, located on the San Nicola–Avigliano Lucania line in Potenza, Italy, was carried out. The seismic vulnerability of the bridge was assessed using the Finite Element Analysis (FEA) method by subjecting a properly discretized three-dimensional model of the entire structure to a non-adaptive nonlinear static analysis (pushover). The obtained results do not meet the minimums suggested by current European Standards. Therefore, a traditional structural rehabilitation intervention was designed and modeled. The intrados of the arches and the bridge piers were reinforced with a thin reinforced concrete slab and reinforced concrete jackets, respectively, all connected to the existing structure by steel bar connectors. By re-performing the pushover analysis of the reinforced structure using FEA software, it was observed that the new risk indexes satisfy the seismic vulnerability verification. Thus, the proposed structural rehabilitation is a valid, but not unique, solution to the problem affecting the existing masonry arch bridge analyzed in this study.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Masonry and Concrete Structural Analysis · Structural Health Monitoring Techniques · Seismic Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, University of Calabria, 87036 Rende, CS, Italy
Impresa Pizzarotti & C. S.p.A., 43121 Parma, PR, Italy
References (18)
Show source-provided references
1. Masonry Arches: Historical Rules and Modern Mechanics10.1080/15583050701312926 ↗
2. Simplified seismic assessment of multi-span masonry arch bridges10.1007/s10518-015-9733-2 ↗
3. Aoki, T., and Sabia, D. (2003, January 2–4). Collapse Analysis of Masonry Arch Bridges. Proceedings of the Ninth International Conference on Civil and Structural Engineering Computing, B.H.V. Topping, Egmond-aan-Zee, The Netherlands.
4. Sarhosis, V., De Santis, S., and de Felice, G. (2016). Structure and Infrastructure Engineering, Taylor & Francis.
5. Midas (2021). Advanced Nonlinear and Detail Analysis System, CSPFEA Engineering Solutions. FEA NX 2021 (v. 1.1).
6. Seismic assessment of masonry arch bridges10.1016/j.engstruct.2009.02.012 ↗
7. Reliability-based seismic performance of masonry arch bridges
8. Addessi, D., Gatta, C., Nocera, M., and Liberatore, D. (2021). Nonlinear Dynamic Analysis of a Masonry Arch Bridge Accounting for Damage Evolution. Geosciences, 11.10.3390/geosciences11080343 ↗
9. (2020, June 01). Available online: www.ferrovieappulolucane.it.
10. (2005). Eurocode 8: Design of structures for earthquake resistance—Part 3: Assessment and retrofitting of buildings (Standard No. EN 1998-3:2005).
11. (2019). Istruzioni per l’applicazione dell’aggiornamento delle Norme Tecniche per le Costruzioni (Standard No. DM 17 Gennaio 2018). Cir. no 7, 21 Gennaio, 2019.
12. Angelillo, M., Lourenco, P.B., and Milani, G. (2014). Mechanics of Masonry Structures, Springer. CISM International Centre for Mechanical Sciences.10.1007/978-3-7091-1774-3 ↗
13. (2005). Eurocode 8: Design of structures for earthquake resistance–Part 2: Bridges (Standard No. EN 1998-2:2005).
14. (2005). Improvement of nonlinear static seismic analysis procedures (Standard No. FEMA 440).
15. (2018). Norme Tecniche per le Costruzioni (Standard No. DM 17 Gennaio 2018).
16. (2020). Manuale RFI di Progettazione delle Opere Civili, Parte II–Sezione II, Ponti e Strutture, Rev. E, RFI.
17. (2004). Eurocode 2: Design of concrete structures–Part 1-1: General rules and rules for buildings (Standard No. EN 1992-1-1:2004).
18. Tomasoni, E. (2018). Analisi, Verifiche e Consolidamento Strutturale di Archi e Volte, Dario Flaccovio Editore.