Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 25, Issue 9, Pages 3709-3720Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2011.04.019
Keywords
Ambient vibration testing; Arch bridge; Damage; Iron; Operational modal analysis; Structural health monitoring
Categories
Funding
- Province of Lecco
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The Paderno iron arch bridge, erected in 1889 and still used as a combined road and rail bridge, is the most important monument of XIX century iron architecture in Italy. The bridge, with an arch span of 150 m, has a total length of 266 m between the abutments and about 2600 tons of wrought iron were used in its construction. After a description of the historic structure, the paper presents the results of the experimental modal analysis of the bridge. The dynamic tests, performed in operational conditions (i.e. under traffic and wind-induced excitation) between June and October 2009, represented the first experimental survey carried out on the global characteristics of the bridge since the load reception tests (1889 and 1892) and suggested the opportunity of installing a permanent dynamic monitoring system on the bridge with Structural Health Monitoring purposes. (C) 2011 Elsevier Ltd. All rights reserved.
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