This paper discusses the dynamic characterization of a 3 spans wooden cable-stayed footbridge newly built in Italy. The footbridge is 235 m long and consists of a 2-girder wooden deck. The edge spans are simply supported, while the mid one (about 150 m long) is sustained by 16 stays linked to 2 pillars. Ambient vibration tests and operational modal analyses are performed to identify the global dynamic behaviour of the structure and 17 stable vibration modes are identified in the frequency range 0-6 Hz. Moreover, the vibration serviceability is assessed per-forming in situ pedestrian load tests following the load protocols provided by Hivoss and Sètra technical guidelines, and verifying the recorded accelerations with the maximum ones suggested by codes (fib bulletin 32 and EN1990:2002).
Dynamic identification and vibration serviceability assessment of a wooden cable-stayed footbridge / Nicoletti, Vanni; Tentella, Luca; Martini, Riccardo; Quarchioni, Simone; Carbonari, Sandro; Gara, Fabrizio. - ELETTRONICO. - 6, issue 5:(2023), pp. 1174-1181. (Intervento presentato al convegno EUROSTRUCT 2023 2nd Conference of the European Association on Quality Control and Structures tenutosi a Vienna, Austria nel 27-29 September 2023).
Dynamic identification and vibration serviceability assessment of a wooden cable-stayed footbridge
Vanni Nicoletti
;Luca Tentella;Riccardo Martini;Simone Quarchioni;Sandro Carbonari;Fabrizio Gara
2023-01-01
Abstract
This paper discusses the dynamic characterization of a 3 spans wooden cable-stayed footbridge newly built in Italy. The footbridge is 235 m long and consists of a 2-girder wooden deck. The edge spans are simply supported, while the mid one (about 150 m long) is sustained by 16 stays linked to 2 pillars. Ambient vibration tests and operational modal analyses are performed to identify the global dynamic behaviour of the structure and 17 stable vibration modes are identified in the frequency range 0-6 Hz. Moreover, the vibration serviceability is assessed per-forming in situ pedestrian load tests following the load protocols provided by Hivoss and Sètra technical guidelines, and verifying the recorded accelerations with the maximum ones suggested by codes (fib bulletin 32 and EN1990:2002).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
