Dynamical models of a suspension bridge driven by vibration data

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Vincenzo Gattulli (Author) Other; Álvaro Cunha (Author) FEUP; Elsa Caetano (Author) FEUP; Francesco Potenza (Author) Other; Andrea Arena (Author) Other; Umberto Di Sabatino (Author) Other

Journal

Title: Smart Structures and Systems

Vol. 27 No. 2

Pages: 139-156

ISSN: 1738-1584

Publisher: Techno Press

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00T-JFV

DOI: 10.12989/sss.2021.27.2.139

Abstract (EN): The great availability of measurement systems permits to acquire quite easily data related to structural oscillations in operational conditions. This occurrence may permit to enhance our capability to data-driven computing using directly experimental data and pertinent constraints and conservation laws, such as compatibility and equilibrium, surely certain. In the paper, a methodology will be presented to furnish an analytical mechanical model of a suspension bridge in which the main parameters can be derived from vibration measurements. In this respect, Polymax and Enhanced Frequency Domain Decomposition identification procedures are used to determine a complete modal model which is used to evaluate an error function. Optimization algorithms are used to evaluate the function minima in the fundamental parameter space. The procedure will be validated by results coming from a sophisticated finite element model for which geometric measurements are included through a 3D point cloud geometrical model and a consequent Building Information model (BIM) constructed with images acquired by unmanned aerial vehicle (UAV). The case study of the pedestrian cable suspension Polvorines bridge (100 meters of span) is considered to demonstrate the procedure, due the test campaign conducted on March 2020.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18