装配式风电塔架整体结构可靠性研究

发布时间：2018-06-26 00:58

  本文选题：装配式风电塔架 + 有限元　； 参考：《建筑技术》2017年11期

【摘要】：分析装配式风电塔架在荷载作用下的位移和应力,以塔架顶部位移和各构件最大应力为控制条件对塔架进行可靠性分析,并研究预应力松弛对于塔架整体可靠性的影响。结果表明对塔架结构性能影响最大的两个参数分别为钢塔筒壁厚和混凝土塔筒门洞口附近预应力筋束的应力;预应力松弛会降低塔架位移和钢塔筒的可靠指标而提高混凝土塔筒的可靠指标。
[Abstract]:The displacement and stress of prefabricated wind power tower under load are analyzed. The reliability of tower is analyzed under the control condition of the top displacement of tower and the maximum stress of each member, and the effect of prestressed relaxation on the overall reliability of tower is studied. The results show that the two parameters that have the greatest influence on the performance of the tower are the wall thickness of the steel tower and the stress of the prestressed tendons near the portal of the concrete tower. The prestressed relaxation can reduce the displacement of tower and the reliability index of steel tower and improve the reliability index of concrete tower.
【作者单位】： 北京工业大学建筑工程学院;北京金风科创风电设备有限公司;
【基金】：北京工业大学基础研究基金(004000546317500)
【分类号】：TU311.2
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本文编号：2068322