000022609 001__ 22609
000022609 005__ 20170724144657.0
000022609 04107 $$aeng
000022609 046__ $$k2017-07-04
000022609 100__ $$aGao, Dong-Lai
000022609 24500 $$aExperimental study on multi-mode rain-wind induced vibrations of a flexible cable

000022609 24630 $$n7.$$p7th European and African Conference on Wind Engineering 
000022609 260__ $$bl'Association pour l'Ingénierie du Vent
000022609 506__ $$arestricted
000022609 520__ $$2eng$$aMechanism of rain-wind induced vibrations (RWIVs) of the stay cables of cable-stayed bridges has not been thoroughly clarified yet. Previous experimental studies mainly focused on the single-mode vibrations of rigid and segmental models. In the present study, the multi-mode RWIVs of a long and flexible cable were reproduced in the wind tunnel. Multi-mode cable vibration responses are measured by accelerometers and the upper rivulets movements are monitored and recorded by using a high-speed camera. In addition, the wake flow characteristics behind the cable model when RWIVs occur are also obtained by employing a digital particle image velocimetry (PIV) system. Structural responses of the flexible cable, evolution of water rivulets on the cable surface, flow structures in the near wake, and their interrelationships contribute to explore the excitation mechanism of RWIVs in this paper.

000022609 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022609 653__ $$a

000022609 7112_ $$a7th European and African Conference on Wind Engineering$$cLiège, BE$$d2017-07-04 / 2017-07-07$$gEACWE2017
000022609 720__ $$aGao, Dong-Lai$$iLi, Hui$$iChen, Wen-Li
000022609 8560_ $$ffischerc@itam.cas.cz
000022609 8564_ $$s17865$$uhttps://invenio.itam.cas.cz/record/22609/files/165.pdf$$yOriginal version of the author's contribution in proceedings, id 165, section .
000022609 962__ $$r22493
000022609 980__ $$aPAPER