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首页> 外文期刊>International journal of steel structures >Structural Behavior of Telescopic Steel Pipe for a Full-Scale 60 kW Wind Turbine Tower
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Structural Behavior of Telescopic Steel Pipe for a Full-Scale 60 kW Wind Turbine Tower

机译：全尺寸60 kW风力涡轮机塔伸缩钢管的结构行为

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A simple analytical model, including local effects due to buckling and shear to moment interaction, was developed to predict the load-carrying capacity of CHS tubes under flexure and shear. A finite-element analysis with ABAQUS Code was also conducted for validation of the proposed model. By properly modeling the imperfection effects due to the ovalization of steel tube, a good correlation of the structural response and failure mode was also achieved, and a good correlation with the analytical model was also achieved. Numerical and analytical results were compared with experimental results recently obtained by the author with good agreement. Experimental tests refer to full-scale static test to failure were conducted on 6 m length of steel pipe constituting a segment of a telescopic wind tower with a 60-kW wind turbine. The diameter of the circular cross-section of steel pipes was 900 mm and the nominal thickness 10 mm. Steel grade was S355 J2, according to Eurocode 3. Although local buckling caused slight strength degradation, the reduction due to shear to moment interaction was very significant, while the recorded response showed a good amount of post-buckling ductility although the ovalization of cross-sections.
机译：开发了一种简单的分析模型，包括由于屈曲和剪切引起的局部效应，以预测弯曲和剪切下CHS管的承载能力。还进行了ABAQUS代码的有限元分析，以验证所提出的模型。通过适当地建模由于钢管的椭圆化引起的缺陷效应，还实现了结构响应和故障模式的良好相关性，并且还实现了与分析模型的良好相关性。将数值和分析结果与作者获得良好一致性的实验结果进行了比较。实验试验是指以6米长的钢管进行全面静态试验，构成一个带有60 kW风力涡轮机的伸缩风塔的段的钢管。钢管的圆形横截面的直径为900毫米，标称厚度为10mm。钢级是S355 J2，额外的3.虽然局部屈曲引起略有强度的降解，但由于剪切到矩相互作用的减少非常显着，而记录的反应显示出良好的后屈曲延展性，尽管交叉的椭圆化部分。

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