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OPGW在微风作用下常常会发生振幅小于光缆直径振动频率3~100 Hz的微风振动。为了减少微风振动造成的危害,必须针对OPGW微风振动的特殊性设计防振装置。目前常用的防振装置有3种:螺旋阻尼器、防振锤、防振锤和阻尼线联合防振装置。结合潭江大跨越工程特点,设计了阻尼线和防振锤联合防振装置,并进行防振效果评估和优选试验。
OPGW often occurs under the breeze amplitude is less than the cable diameter vibration frequency of 3 ~ 100 Hz breeze vibration. In order to reduce the harm caused by the breeze vibration, the anti-vibration device must be designed according to the particularity of the vibration of the OPGW breeze. At present, there are three kinds of anti-vibration devices commonly used: spiral damper, anti-vibration hammer, anti-vibration hammer and damping line anti-vibration device. Combined with the characteristics of the Tanjiang Long-span Project, the anti-vibration device with damping line and anti-vibration hammer was designed and the anti-vibration effect evaluation and optimization test were carried out.