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Sazlidere Bridge Wind Tunnel Testing Assisted Design

 Sazlidere Bridge Wind Tunnel Testing Assisted Design
Auteur(s): , , , ,
Présenté pendant IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023, publié dans , pp. 936-943
DOI: 10.2749/istanbul.2023.0936
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In the context of the Northern Marmara Motorway Section 8 Project, a new cable-stayed bridge, the Sazlidere Bridge, is being designed and works have already started on site. To support this fast-pa...
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Détails bibliographiques

Auteur(s): (RWDI, Unit 1 Tilers Road, Milton Keynes, MK11 3LH, United Kingdom)
(RWDI, via Thaon di Revel 21, 20159, Milano, Italy)
(RWDI, via Thaon di Revel 21, 20159, Milano, Italy)
(RWDI, 600 Southgate Drive, Guelph, ON N1G 4P6, Canada)
(RWDI, 600 Southgate Drive, Guelph, ON N1G 4P6, Canada)
(RWDI, 600 Southgate Drive, Guelph, ON N1G 4P6, Canada)
(Rönesans Holding, Atatürk Bulvarı No:144-146 Protokol Yolu Çankaya, Ankara 06640, Türkiye)
(Rönesans Holding, Atatürk Bulvarı No:144-146 Protokol Yolu Çankaya, Ankara 06640, Türkiye)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Long Span Bridges, Istanbul, Turkey, 26-28 April 2023
Publié dans:
Page(s): 936-943 Nombre total de pages (du PDF): 8
Page(s): 936-943
Nombre total de pages (du PDF): 8
Année: 2023
DOI: 10.2749/istanbul.2023.0936
Abstrait:

In the context of the Northern Marmara Motorway Section 8 Project, a new cable-stayed bridge, the Sazlidere Bridge, is being designed and works have already started on site. To support this fast-paced project, RWDI is collaborating with the design team and providing wind engineering services. The activities employ wind tunnel experiments and are focused on two main aspects: aerodynamic stability of the bridge and the risk of wind-induced overturning of large lorries crossing the bridge. With respect to aerodynamic stability, limited tests on a sectional model of the bridge deck were performed in one of RWDI’s wind tunnels using a state-of-the-art sectional model test rig. Testing of a full bridge aeroelastic model with relevant topography was also conducted allowing for the simulation of atmospheric turbulence from any wind direction. This testing was used primarily to verify the aerodynamic stability of the structure for various wind directions and to measure the buffeting response of the bridge to turbulent winds. Further wind tunnel testing on a small-scale rigid transport lorry model was completed to measure the aerodynamic force and moment coefficients of the vehicle as a function of wind direction. These data were combined with a numerical model for the roll-over stability of high-sided vehicles to calculate critical wind speeds versus wind direction for lorries driving along the central span of the bridge.

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