中文摘要：

以某220V大跨越输电线路为背景,研究了大跨越输电塔-线耦联体系振动台试验模型设计。根据相似理论对输电塔模型设计,运用刚度等效原则确定各构件截面尺寸,通过有限元模型计算和试验模型白噪声扫频,得到输电塔的基频计算值与试验值。根据导（地）线动力特性和质量相似关系,对导（地）线进行二次缩尺,确定了导（地）线弧垂和线密度,对比分析了原型的频率和试验模型的频率。采用完全质量配重方法对大跨越塔-线体系缩尺模型进行配重,以期获取结构弹塑性响应结果。该缩尺模型设计理论可为大跨越输电塔-线体系结构振动台试验设计提供参考和依据。

英文摘要：

Based on practical project, shaking table model design of long span transmission tower-line system is in- vestigated. The experimental model was designed by similarity theory and section size of components was deter- mined using equivalent stiffness principle. The frequency of experimental model was measured by white-noise scan- ning technique and compared with the finite analysis result. According to similarity relationship of dynamic charac- teristic and mass of transmission lines, the scale of transmission lines was readjusted, the sag and line mass of transmission line was determined. The mass of long span transmission tower-line system was determined using full- mass counterweight method to obtain structural pXastic response. The design theory of scale model could provide meaningful reference for shaking table model design of large span transmission tower-line system.