UPDATING AND VALIDATION OF THE DYNAMIC MODEL OF A RAILWAY VIADUCT WITH PRECAST DECK

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Joel Malveiro (Author) Other; Diogo Ribeiro (Author) Other; Rui Calcada (Author) FEUP

Conference proceedings International

Title: Proceedings ICEM15 - 15th International Conference on Experimental Mechanics

Pages: 1484-1509

ICEM15 - 15th International Conference on Experimental Mechanics

Porto, 22-27 July 2012

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 40 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-005-K50

DOI: 10.1080/15732479.2013.833950

Abstract (EN): This paper describes the calibration of the dynamic model of a railway viaduct with precast deck based on modal parameters. An ambient vibration test allowed the identification of the natural frequencies, mode shapes and damping coefficients of several global and local modes of vibration of the structure. The calibration was performed using a genetic algorithm. For the mode pairing, a new technique based on the calculation of the modal strain energy was used. The updated numerical model was validated based on a dynamic test under railway traffic. The results showed a very good agreement between numerical and experimental results.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2