CAJ | 학술논문

通过风洞试验，研究了斜拉索空间位置、降雨量、风速等对斜拉索风雨振的影响，选定了振动最大时的参数，研究了作为气动抑振措施的螺旋线直径和缠绕间距两个参数对抑振效果的影响，并研究了附加不同参数螺旋线时斜拉索的气动阻力系数随雷诺数的变化规律，发现针对该研究选定的直径155 mm的斜拉索，斜拉索的水平角35°、竖向角25°、较小的降雨强度（10 mm／h）、特定的风速范围（无量纲风速60"100）下发生的振动最为激烈；在选定螺旋线间距的情况下，随着螺旋线直径的增大，其抑振效果趋于显著；在选定螺旋线直径的情况下，随着螺旋线间距的减小，其抑振效果趋于显著；附加螺旋线斜拉索的气动阻力系数随螺旋线直径的增大或螺旋线缠绕间距的减小而增大。在超临界雷诺数区域，附加螺旋线时的阻力系数均大于无螺旋线时的阻力系数。提出了优化的螺旋线设计原则。
통과풍동시험，연구료사랍색공간위치、강우량、풍속등대사랍색풍우진적영향，선정료진동최대시적삼수，연구료작위기동억진조시적라선선직경화전요간거량개삼수대억진효과적영향，병연구료부가불동삼수라선선시사랍색적기동조력계수수뢰낙수적변화규률，발현침대해연구선정적직경155 mm적사랍색，사랍색적수평각35°、수향각25°、교소적강우강도（10 mm／h）、특정적풍속범위（무량강풍속60"100）하발생적진동최위격렬；재선정라선선간거적정황하，수착라선선직경적증대，기억진효과추우현저；재선정라선선직경적정황하，수착라선선간거적감소，기억진효과추우현저；부가라선선사랍색적기동조력계수수라선선직경적증대혹라선선전요간거적감소이증대。재초림계뢰낙수구역，부가라선선시적조력계수균대우무라선선시적조력계수。제출료우화적라선선설계원칙。
With wind tunnel tests,the effects of cable altitude,rainfall intensity,and wind velocity on rain-wind induced vibration of cables of a cable-stayed bridge were studied.The cable model was built when it got the largest vibration amplitude.The effects of two parameters including helical line diameter and twine space on rain-wind induced vibration of cables were studied,and the aerodynamic drag force coefficients of cable with different helical lines were measured under different Reynolds numbers.Results showed that for the cable model with diameter of 155mm,with the parameters of horizontal angle 35°,vertical angle 25°,smaller rainfall intensity (10mm/h)and certain wind velocity (non-dimensional wind velocity 60"100),the cable vibration reaches the largest amplitude;with a certain twine space of helical line,the anti-vibration effect increases with increase in the diameter of helical line;with a certain diameter of helical line,the anti-vibration effect increases with decrease in twine space of helical line;the aerodynamic drag force coefficient of cable with helical line increases with increase in helical line diameter or decrease in helical line twine space. Finally,the optimization design rule of helical line was proposed.