Ambient vibration testing and condition assessment of the Paderno iron arch bridge (1889)

被引:59
作者
Gentile, Carmelo [1 ]
Saisi, Antonella [1 ]
机构
[1] Politecn Milan, Dept Struct Engn, I-20133 Milan, Italy
关键词
Ambient vibration testing; Arch bridge; Damage; Iron; Operational modal analysis; Structural health monitoring;
D O I
10.1016/j.conbuildmat.2011.04.019
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
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.
引用
收藏
页码:3709 / 3720
页数:12
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