Abstract

Selected results from the investigation program of a historic R.C. bridge are presented in the paper. The bridge, crossing the Adda river between the Municipalities of Brivio and Cisano Bergamasco, consists of three tied arch spans, about 44.0 m length each, and represents a crucial node for the vehicular traffic of the region. After a maintenance intervention performed on one pier, the local Authorities committed to Politecnico di Milano an extensive investigation including: (i) documentary research and review of the bridge history; (ii) visual inspection and geometric survey of each span; (iii) full-scale load tests and ambient vibration tests; (iv) FE modelling of each span and validation of the numerical models (through comparison with the available experimental results) and (v) structural assessment of the bridge in its present condition. After a concise review of the bridge history, the paper summarizes the complete results of the experimental tests performed on one span (visual inspection, geometric survey, full-scale load tests and dynamic tests) as well as the development of numerical models.

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References

[1] Gentile, C. Modal and structural identification of a RC arch bridge. Struct. Eng. Mech. (2006) 22(1): 53-70.

[2] ICOMOS/ISCARSAH Committee. Recommendations for the analysis, conservation and structural restoration of architectural heritage (2005). https://www.icomos.org/en/documentation-center.com.

[3] Zonno, G., Aguilar, R., Boroschek, R. and Lourenço, P. B. Analysis of the long and shortterm effects of temperature and humidity on the structural properties of adobe buildings using continuous monitoring. Eng. Struct. (2019) 196: 109299.

[4] Saisi, A., Gentile, C. and Ruccolo, A. Continuous monitoring of a challenging heritage tower in Monza, Italy. J. Civ. Struct. Health Monit. (2018) 8(1): 77-90.

[5] Deger, Y., Cantieni, R. and Pietrzko, S. Modal analysis of an arch bridge: experiment, finite element analysis and link. In proceedings-spie the international society for optical engineering (1994), pp. 425-425

[6] Sena-Cruz, J., Ferreira, R. M., Ramos, L. F., Fernandes, F., Miranda, T. and Castro, F. Luiz Bandeira bridge: assessment of a historical reinforced concrete (RC) bridge. Int. J. Archit. Herit. (2013). 7(6): 628-652.

[7] Türker, T. and Bayraktar, A. Structural safety assessment of bowstring type RC arch bridges using ambient vibration testing and finite element model calibration. Measurement (2014) 58: 33-45.

[8] Santarella, L. and Miozzi, E. Italian bridges in reinforced concrete (in Italian). Hoepli, Milan (1924).

[9] Decreto Ministeriale 10 Gennaio 1907 (in Italian), Gazzetta Ufficiale 2 Febbraio 1907 n.28 (1907).

[10] Ferrari, R., Froio, D., Rizzi, E., Gentile, C. and Chatzi, E.N. Model updating of a historic concrete bridge by sensitivity-and global optimization-based Latin Hypercube Sampling. Eng. Struct. (2019) 179: 139-160.

[11] Brincker, R., Zhang, L.M. and Andersen, P. Modal identification of output-only systems using frequency domain decomposition. Smart Mater. Struct. (2001) 10(3): 441-445.

[12] Douglas, B.M., Reid, W.H. Dynamic tests and system identification of bridges. ASCE J. Struct. Eng. (1982) 108(10): 2295-312.

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Published on 30/11/21
Submitted on 30/11/21

Volume Interdisciplinary projects and case studies, 2021
DOI: 10.23967/sahc.2021.280
Licence: CC BY-NC-SA license

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