Theoretical investigation on rain-wind induced vibration of a continuous stay cable with given rivulet motion

A three-dimensional model for rain-wind induced vibration of stay cables in cable-stayed bridges

“…Cable amplitude according to cable damping ratio Next, the cable with varied wind velocity according to height is discussed with different cable damping ratios. The cable damping ratio changes from 0.01% to 5%, and the results are compared with those of Li et al [28,29]. Fig.…”

“…7 presents the cable responses at t = 799.7 (s), showing a maximum cable amplitude at the midpoint. The results are compared with other numerical ones provided in [10] and [28] in Table 1. Note that there are no significant differences between the present results and those of Gu [10] and Li et al [28], except in the 2D model result.…”

“…The results are compared with other numerical ones provided in [10] and [28] in Table 1. Note that there are no significant differences between the present results and those of Gu [10] and Li et al [28], except in the 2D model result. Clearly, the 2D cable model does not consider the cable tension and stiffness, so the results obtained are smaller than those obtained by the 3D model.…”

“…Recently, a 3D model of cable has been used in the investigation of RWIV but the number of studies is still limited. Some interesting works can be listed here are Gu [10], Li et al [28][29][30], Liu et al [31], etc. In all aforementioned studies, the authors considered the wind impacting on the cable with a constant speed.…”

Three-phase coupled modelling research on rain–wind induced vibration of stay cable based on lubrication theory

“…A series of wind tunnel tests with artificial rainfall and artificial rivulets were done to study the effect of rivulets on RWIV (Flamand, 1995;Gu et al, 2002;Gu, 2009;Gu and Du, 2005;Gu and Huang, 2008;Li et al, 2010;Matsumoto et al, 1990). On this basis, a great number of theory models were built to investigate the mechanism of RWIV (Li et al, 2007;Peil and Nahrath, 2003;Seidel and Dinkler, 2006;Xu and Wang, 2003;Wilde and Witkowski, 2003;Yamaguchi, 1990). As lubrication theory was used in simulating the evolution of water film on plate or cylinder in chemical sector, researchers attempted to establish theoretical model of RWIV by it to investigate the interaction characteristics between rivulets and cable.…”