This work aims to infer some general considerations on flutter stability of long-span suspen-sion bridges, considering both the completed configuration and the erection phase. A main span length that is expected to become soon not so exceptional (about 1600 m) and a common closed-box deck cross section have been taken into account in the analysis. The bridge planned for the crossing of the Julsundet Fjord in Norway has been assumed as a case study. The inves-tigation revealed that stability against flutter is warranted without the need of particular opti-mizations except for the first phase of deck erection when this is started from the centre. In ad-dition, the flutter calculations emphasize the key role of mode coupling coefficients both in service and during the construction stages.

Flutter stability of a suspension bridge during construction / Niccolò Barni, Salvatore Giacomo Morano, Claudio Mannini. - STAMPA. - (2019), pp. 1-4. (Intervento presentato al convegno 15th International Conference on Wind Engineering (ICWE 2019) tenutosi a Beijing, China nel 1- 6 September 2019).

Flutter stability of a suspension bridge during construction

BARNI, NICCOLO';Salvatore Giacomo Morano;Claudio Mannini
2019

Abstract

This work aims to infer some general considerations on flutter stability of long-span suspen-sion bridges, considering both the completed configuration and the erection phase. A main span length that is expected to become soon not so exceptional (about 1600 m) and a common closed-box deck cross section have been taken into account in the analysis. The bridge planned for the crossing of the Julsundet Fjord in Norway has been assumed as a case study. The inves-tigation revealed that stability against flutter is warranted without the need of particular opti-mizations except for the first phase of deck erection when this is started from the centre. In ad-dition, the flutter calculations emphasize the key role of mode coupling coefficients both in service and during the construction stages.
2019
Proceedings of the 15th International Conference on Wind Engineering
15th International Conference on Wind Engineering (ICWE 2019)
Beijing, China
1- 6 September 2019
Niccolò Barni, Salvatore Giacomo Morano, Claudio Mannini
File in questo prodotto:
File Dimensione Formato  
BARNI-MORANO-MANNINI_ICWE_2019_final.pdf

accesso aperto

Tipologia: Pdf editoriale (Version of record)
Licenza: DRM non definito
Dimensione 231.96 kB
Formato Adobe PDF
231.96 kB Adobe PDF

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1174995
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact