Experimental Study on Aaerodynamic Stability of Rainwind Induced Vibration of Stay Cables of Different Diameters

doi:10.11908/j.issn.0253-374x.2016.10.002

Home > Archive>Volume 44, Issue 10, 2016 >1482-1489. DOI:10.11908/j.issn.0253-374x.2016.10.002

Experimental Study on Aaerodynamic Stability of Rainwind Induced Vibration of Stay Cables of Different Diameters
DOI:
                        10.11908/j.issn.0253-374x.2016.10.002
                    
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                        CHANG YingCHANG Ying
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 200092， China
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LUO WeiLUO Wei
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 200092， China
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ZHAO LinZHAO Lin
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 200092， China
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GE YaojunGE Yaojun
State Key Laboratory for Disaster Reduction in Civil Engineering， Tongji University， Shanghai 200092， China
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Abstract:

Rainwind induced vibration of cables is a type of vibration with large amplitude and low frequency. The phenomenon of rainwind induced vibration of cables of two different diameters is successfully reproduced under simulated raining condition through wind tunnel test. The effects of several main factors on the characteristics of rainwind vibration and spiraled wires countermeasure for mitigation of the vibration are investigated. The results indicate that the mechanism of vibrations with different reduced velocities is different. Vibration with high reduced velocity is more like a type of galloping, while vibration with low reduced velocity is more related to vortexinduced vibration.

Key words:cables; rainwind induced vibration; artificial rainfall test; spiraled wires

Reference

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CHANG Ying, LUO Wei, ZHAO Lin, GE Yaojun. Experimental Study on Aaerodynamic Stability of Rainwind Induced Vibration of Stay Cables of Different Diameters[J].同济大学学报(自然科学版),2016,44(10):1482~1489

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Received:November 18,2015
Revised:August 23,2016
Adopted:June 22,2016
Online: November 04,2016
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