筒型基础预应力过渡段结构传力特性研究

发布时间：2018-04-17 00:04

本文选题：筒型基础 + 过渡段　；参考：《太阳能学报》2017年11期

【摘要】：复合筒型基础是目前应用于海上风电工程中的一种新型基础型式,过渡段结构作为一种连接筒基和塔筒的结构形式在整个基础结构的传力体系中起到关键作用。基于大型有限元软件ABAQUS,建立2种典型的过渡段结构型式,具体分析不同过渡段结构在单调荷载及复合荷载作用下过渡段结构的应力响应及传力特性。计算结果表明:单调水平或竖向荷载作用下,带分舱板的钢筒直线型过渡段模型受力均匀,过渡段结构表现出更好的综合传力特性;单调弯矩荷载作用下,带分舱板的钢筒弧线型过渡段模型受力均匀,过渡段结构表现出更好的综合传力特性;复合荷载作用下,带分舱板的钢筒弧线型过渡段模型受力性能最好,过渡段结构的传力性能最优。
[Abstract]:Composite cylindrical foundation is a new type of foundation used in offshore wind power engineering at present. As a structural form of connecting tube foundation and tower tube, transition section structure plays a key role in the transmission system of the whole foundation structure.Based on the large finite element software Abaqus, two typical transition section structures are established, and the stress response and force transfer characteristics of different transition section structures under monotone and composite loads are analyzed.The results show that under monotone horizontal or vertical load, the model of straight transition section with subdivision slabs has uniform force, and the structure of transition section has better comprehensive force transfer characteristics, and under monotone moment load,The model of steel cylinder arc type transition section with subdivision slabs has uniform force, and the transition section structure shows better comprehensive force transfer characteristics, and the steel cylinder arc transition section model with subdivision slab has the best mechanical performance under the action of composite load.The force transfer performance of the transition section structure is optimal.
【作者单位】：天津大学水利工程仿真与安全国家重点实验室;滨海土木工程结构与安全教育部重点实验室(天津大学);天津大学建筑工程学院;天津富力城房地产开发有限公司;
【分类号】：TM614

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