Excitation of Arch and Suspension Bridges by Subwires

Article type: Research Article

Authors: Hiwatashi, Noriaki | Mizuta, Yoji | Ishihara, Yutaka | Hirai, Itio

Affiliations: Sumitomo Construction Co. Ltd., 1-3-1 Minato Chuoku, Fukuoka, 810 Japan | Yatsushiro National College of Technology, 2627 Hirayama Shinmachi, Yatsushiro, Kumamoto-ken 866, Japan | Department of Civil and Environmental Engineering, Kumamoto University, 2-39-1 Kurokami, Kumamoto-shi, 860, Japan

Abstract: A force generation method using a subwire for arch and suspension bridges is proposed. The subwire is connected to the arch or the cable of the bridge through rollers. The uniform force produced by pulling and releasing the pretensioned subwires acts on the bridge as an externalforce. A new device called “the resonance force generator” is also developed to excite the bridges by applying a small force. To verify the proposed concept, a stress ribbon bridge was excited with the resonance force generator.

DOI: 10.3233/SAV-1993-1108

Journal: Shock and Vibration, vol. 1, no. 1, pp. 59-64, 1993