Yang Zheng | South China University of Technology (original) (raw)
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A study sponsored by the US Federal Highway Administration was recently completed in order to dev... more A study sponsored by the US Federal Highway Administration was recently completed in order to develop a set of consistent design guidelines for mitigation of excessive cable vibrations on cablestayed bridges. In order to accomplish this goal, the Project Team started with a thorough review of existing literature to determine the state of knowledge and identify any gaps to be filled in order to enable the formation of a consistent set of design recommendations. This review indicated that while the rain/wind problem seemed to be known in sufficient detail, galloping of dry inclined cables was a critical wind-induced vibration mechanism in need of further experimental research. A series of wind-tunnel tests was performed to study this mechanism. Analytical and experimental research was performed to study mitigation methods, covering a range of linear and non-linear dampers and crossties. The study also included studies on live load induced vibrations and establishing driver/pedestrian comfort criteria.
A study sponsored by the US Federal Highway Administration was recently completed in order to dev... more A study sponsored by the US Federal Highway Administration was recently completed in order to develop a set of consistent design guidelines for mitigation of excessive cable vibrations on cablestayed bridges. In order to accomplish this goal, the Project Team started with a thorough review of existing literature to determine the state of knowledge and identify any gaps to be filled in order to enable the formation of a consistent set of design recommendations. This review indicated that while the rain/wind problem seemed to be known in sufficient detail, galloping of dry inclined cables was a critical wind-induced vibration mechanism in need of further experimental research. A series of wind-tunnel tests was performed to study this mechanism. Analytical and experimental research was performed to study mitigation methods, covering a range of linear and non-linear dampers and crossties. The study also included studies on live load induced vibrations and establishing driver/pedestrian comfort criteria.