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首页> 外文会议>International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP) >A comparative study on seismic and wind resistant performance of steel tower structures
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A comparative study on seismic and wind resistant performance of steel tower structures

机译：钢塔结构抗震，抗风性能的比较研究。

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It is considered that a transmission tower constructed by the current-wind resistant design method has enough seismic resistant performance. Necessity of the comparative study of both performances is pointed out regarding large transmission towers after occurrence of the Hyogoken-nanbu Earthquake. In this paper, the relation between wind and seismic resistant performances about transmission towers of 275 kV was investigated. At first, five transmission tower models with different heights were selected. Then, dynamic response analyses using three seismic waves as a seismic load, and static analyses using current wind resistant design load were carried out and the comparative investigation based on the numerical results was performed focusing axial forces occurred in main leg members. In the numerical results, when the seismic wave recorded at Kobe Marine Observatory during the Hyogoken-nanbu Earthquake was applied, we found that there are some cases exceeding the axial forces by current wind resistant design load.
机译：认为通过抗风设计方法构造的输电塔具有足够的抗震性能。指出了兵库县南部地震发生后的大型输电塔需要对两种性能进行比较研究。本文研究了275 kV输电塔的抗风和抗震性能之间的关系。首先，选择了五种不同高度的输电塔模型。然后，使用三个地震​​波作为地震荷载进行了动力响应分析，并使用当前的抗风设计荷载进行了静态分析，并根据数值结果进行了比较研究，集中了主要腿部构件上产生的轴向力。在数值结果中，当应用兵库县南部地震期间在神户海洋天文台记录的地震波时，我们发现在某些情况下，当前抗风设计荷载会超过轴向力。

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