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不同建筑物由于周围环境的不同,因此各自处于不同的地面粗糙度之中。精确合理地分析结构风振,研究不同地面粗糙度的影响有着十分实际的意义。本文根据随机振动理论,用所得到的风振系数分析了不同粗糙度的影响,导出了必要的公式,并制成图线,可供工程实际应用。这样,对任一建筑物,根据它所处环境而得到的粗糙度系数,利用本文的公式或图线,即可求出所需的风振系数。
Due to the different surroundings, different buildings are in different ground roughness. It is of practical significance to analyze the structural wind vibration accurately and reasonably, and to study the effects of different ground roughness. In this paper, according to the theory of random vibration, the effects of different roughnesses are analyzed with the obtained wind-induced vibration coefficients, the necessary formulae are derived, and the graphs are made, which can be used for practical application of the project. In this way, for any building, according to the roughness coefficient obtained from its environment, using the formula or graph of this paper, the required wind-vibration coefficient can be obtained.