Buffeting response of cable-stayed bridges at their erection stage under yawed wind has attracted engineering attention through wind tunnel observations and studies. Cable-stayed bridges are particularly vulnerable to dynamic wind effects during their construction stages due to the lack of overall structural stiffness. The most critical stage is just before the bridge main span is closed. At this time, a cable-stayed bridge resembles a long cantilever structure supported by cables, and particularly, the fundamental frequency horizontal modes of oscillation may be very low. During this stage, the cable-stayed ridge is more responsive to wind action both in lateral and vertical bending. For this reason, the prediction of wind-induced bridge response becomes more important when directional variation of wind is considered. However, only a few theoretical approaches have been proposed, applicable only in extremely simplified cases. This thesis deals with the prediction of buffeting response of cable-stayed bridges under yawed winds using the modified buffeting analysis. The modified buffeting analysis was originally developed by Kimura (1991) and was restricted to vertical bending response. The comparison with experimental data was also conducted for extremely simplified flat plate models. In this thesis, the modified buffeting approach is not only applied to actual cable-stayed bridge models but also the calculation of the lateral bending oscillation has been attempted. Further, the calculated results are compared with the experimental data obtained from the wind tunnel tests of the aeroelastic cable-stayed bridge models; the Normandy Bridge and the Kao Ping Hsi Bridge.

This report discusses loadings and materials used in thedesign of cable-stayed bridges.

Collection of 550 revised, state-of-the art contributions on most recent advances in bridge maintenance, safety, management and life-cycle performance from leading experts in this area.

The present book provides a comprehensive survey on the governing phenomena of cable vibration, both associated with direct action of wind and rain: buffeting, vortex-shedding, wake effects, rain-wind vibration; and resulting from the indirect excitation through anchorage oscillation: external and parametric excitation. Methodologies for assessment of the effects of those phenomena are presented and illustrated by practical examples. Control of cable vibrations is then discussed and state-of-art results on the design of passive control devices are presented.

As an in-depth guide to understanding wind effects on cable-supported bridges, this book uses analytical, numerical and experimental methods to give readers a fundamental and practical understanding of the subject matter. It is structured to systemically move from introductory areas through to advanced topics currently being developed from research work. The author concludes with the application of the theory covered to real-world examples, enabling readers to apply their knowledge. The author provides background material, covering areas such as wind climate, cable-supported bridges, wind-induced damage, and the history of bridge wind engineering. Wind characteristics in atmospheric boundary layer, mean wind load and aerostatic instability, wind-induced vibration and aerodynamic instability, and wind tunnel testing are then described as the fundamentals of the subject. State-of-the-art contributions include rain-wind-induced cable vibration, wind-vehicle-bridge interaction, wind-induced vibration control, wind and structural health monitoring, fatigue analysis, reliability analysis, typhoon wind simulation, non-stationary and nonlinear buffeting response. Lastly, the theory is applied to the actual long-span cable-supported bridges. Structured in an easy-to-follow way, covering the topic from the fundamentals right through to the state-of-the-art Describes advanced topics such as wind and structural health monitoring and non-stationary and nonlinear buffeting response Gives a comprehensive description of various methods including CFD simulations of bridge and vehicle loading Uses two projects with which the author has worked extensively, Stonecutters cable-stayed bridge and Tsing Ma suspension bridge, as worked examples, giving readers a practical understanding