Cable vibration due to wind has been of interest to many researchers. The wind flow over stay cables may lead to undesirable low frequency high amplitude vibrations of the bridge. The purpose of the research is to study the dynamic behavior of the stay cables of Bill Emerson Memorial Bridge under different wind loading conditions. LS-DYNARTM, explicit finite element software, has been used to simulate the wind loads acting on the stay cables of Bill Emerson Memorial cable-stayed bridge. An analytical model was used to obtain the initial catenary profile of the pre tensioned stay cable due to its own weight. The catenary shape obtained from LS-DYNARTM under gravity loading was verified with the analytical model. LS-DYNARTM provides the option of combining with the FORTRAN subroutine to apply the user-defined loading. This feature was used to duplicate the mean wind speed profiles and also the wind fluctuations that are in agreement with an existing model.;Two approaches for applying wind loading to stay cables were studied. The first was a formulation by Dr. Kewaisy and the second was a formulation recently developed by Dr. Kulak for computing finite element nodal forces from wind loading on stay cables. The advantages of the new formulation over the earlier formulation have been explained in detail. The two formulations are coded in FORTRAN subroutines and have been applied to the finite element model of the Bill Emerson Memorial Bridge.
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机译：风引起的电缆振动已引起许多研究人员的关注。撑索上的风可能会导致桥的低频高振幅振动。研究的目的是研究比尔·爱默生纪念大桥在不同风荷载条件下的斜拉索的动力特性。 LS-DYNARTM（显式有限元软件）已用于模拟作用在Bill Emerson Memorial斜拉桥斜拉索上的风荷载。由于其自身的重量，使用分析模型来获得预张拉斜拉索的初始悬链线轮廓。用分析模型验证了在重力载荷下从LS-DYNARTM获得的悬链线形状。 LS-DYNARTM提供了与FORTRAN子例程结合以应用用户定义的加载的选项。此功能用于复制平均风速分布以及与现有模型一致的风波动。;研究了两种将风荷载应用于斜拉索的方法。第一种是Kewaisy博士的公式，第二种是Kulak博士最近开发的公式，用于计算斜拉索上风荷载的有限元节点力。已详细说明了新配方相对于早期配方的优势。这两个公式在FORTRAN子例程中编码，并已应用于Bill Emerson Memorial Bridge的有限元模型。
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