FEM models of a single concrete filled steel-tube tower and a long-span transmission tower-line system were established to analyze the seismic responses.
建立一个大跨越钢管混凝土输电线路的单塔和塔线体系有限元模型，对这两种模型进行地震响应分析。
Long span transmission tower-line system is a vital lifeline to power system. Exposing in environment, the system must be robust enough to bear destructive force in extreme environmental conditions.
大跨越输电塔线体系是重要的生命线电力工程设施，由于长期暴露于自然环境中，因此需要具有在极端环境条件下的抗破坏能力。
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