Dynamic tests on large cable-stayed bridge

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Cunha, A. (Author) FEUP; Caetano, E. (Author) FEUP; Raimundo Delgado (Author) FEUP

Journal

Title: Journal of Bridge Engineering

Vol. 6 No. 1

Pages: 54-62

ISSN: 1084-0702

Publisher: ASCE

Indexing

Scopus - 170 Citations

Other information

Authenticus ID: P-007-9PJ

DOI: 10.1061/(asce)1084-0702(2001)6:1(54)

Abstract (EN): This paper describes the dynamic tests performed on a large cable-stayed bridge, Vasco da Gama Bridge, on the basis of a nonconventional testing system, comprehending several independent accelographs conveniently synchronized by a laptop, as well as a laser interferometry system for noncontact dynamic measurements in stay cables. This system showed to be rather portable, efficient, and accurate, leading to the creation of a very large high quality database concerning the dynamic behavior of the bridge. Subsequent processing of the data permitted accurate identification of all the significant modal parameters of interest from the aerodynamic and seismic point of view and presented a very good correlation with the corresponding values provided by the 3D numerical finite-element model previously developed at the design stage.

Language: English

Type (Professor's evaluation): Scientific