格构式输电塔结构多质点简化模型研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (5) : 148-152.

论文

格构式输电塔结构多质点简化模型研究

张庆华1,2; 顾明1; 黄鹏1

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Study on Multi-Degree-Freedom Model of Lattice Transmission Tower

ZHANG Qing-hua1,2, GU Ming1, HUANG Peng1

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摘要

采用“串联多质点系”力学模型，建立了典型500kV酒杯型输电塔和鼓型输电塔简化模型。根据高频动态测力天平风洞试验结果，计算了输电塔简化模型的风致响应，与根据实际结构有限元模型的结果进行了比较，对简化模型的计算误差及适用性进行了分析。结果表明，简化模型不适合用于格构式结构局部杆件的响应分析，但在计算反映结构整体特性的响应时具有较高的精度。

Abstract

Based on the multi-degree-freedom model, simple models of two typical 500kV transmission towers are established. The wind-induced responses of simple models of transmission towers are computed according to wind tunnel test, and compared with the results by the finite element models. Moreover, calculating error and applicability of simple model are analyzed. The studies show that simple models are not applicable to calculating the local responses of truss members, but have high accuracy and efficiency for the whole characteristic responses of overall structure.

导出引用

张庆华;顾明;黄鹏. 格构式输电塔结构多质点简化模型研究[J]. 振动与冲击, 2012, 31(5): 148-152

ZHANG Qing-hua;GU Ming;HUANG Peng. Study on Multi-Degree-Freedom Model of Lattice Transmission Tower[J]. Journal of Vibration and Shock, 2012, 31(5): 148-152