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拉线塔靠拉线保持结构稳定,结构偏柔性,其几何非线性特征明显,分析难度较大,目前对这种塔型动力特性研究相对较少,尤其是其对风荷载的反应更是缺乏足够的认识。利用SAP 2000软件建立拉线塔模型,导入基于MATLAB编程实现的AR法脉动风,研究拉线塔在风荷载作用下的动力响应,统计拉线塔的风振系数取值,并与多种现行规范进行比较,对拉线塔结构抗风设计给出建议。
The structure of the cable tower is stable by the cable and the structure is flexible. The geometrical nonlinearity is obvious and difficult to analyze. At present, there are few studies on the dynamic characteristics of the tower, especially its response to the wind load is lacking understanding. The drawing tower model was established by SAP 2000 software and the AR pulsation wind was imported based on MATLAB programming. The dynamic response of the cable tower under wind load was studied. The wind-induced vibration coefficient of the tower was calculated and compared with many current codes , Gives a proposal on the wind-resistant design of the cable tower structure.