Field Observation of Aerodynamic Responses of a PC Cable-Stayed Bridge During Its Erection

by Yoshinobu Kubo, Kyushu Inst of Technology, Japan,
Akira Watanabe, Kyushu Inst of Technology, Japan,
Naohiro Kuga, Kyushu Inst of Technology, Japan,
Seiji Tokuyama, Kyushu Inst of Technology, Japan,
Kusuo Kato, Kyushu Inst of Technology, Japan,
Mineo Morimoto, Kyushu Inst of Technology, Japan,



Document Type: Proceeding Paper

Part of: Structural Design, Analysis and Testing

Abstract:

Recordings were made of the response of a PC cable-stayed bridge during erection and the wind velocity at erection site. These recordings were analyzed to provide estimates of the characteristics of strong natural wind at erection site and of the frequency, damping ratio and mode shape of the bridge during erection. These results were compared with the values estimated by the wind tunnel test conducted prior to the construction.

Subject Headings: Cable stayed bridges | Cables | Wind tunnel | Bridge tests | Infrastructure construction | Aerodynamics | Concrete bridges

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