桅桿結構在模擬風荷載下的非線性動力分析*
李樹遜 王肇民
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李樹遜 王肇民
（同濟大學 上海 200092）[提要] 桅桿結構是一種具有較強幾何非線性的結構，風荷載是其主要設計荷載。在對廣義脈動風荷載樣本模擬的基礎上，采用增量形式的非線性有限元模型對桅桿的動力響應進行分析，并進行算例計算，說明提出的方法具有較好的精度。
[關鍵詞] 桅桿 模擬風荷載 非線性動力分析Guyed mast is a kind of geometrical nonlinear structure.Wind load is its major design load. The method of wind load simulation is presented, and the nonlinear fimite element method is derived to analyze the dynamic response of guyed mast under the simulated wind load. Finally, a numerical example is given and the results show that the methods have excellent accuracy.
Keywords: guyed mast; simulated wind load; nonlinear dynamic analysis
