锚杆倒肋式风机基础选型优化分析  

Optimized Analysis on Foundation Selection of Anchored Inverted Rib Foundations for Wind Turbines

作　　者：海洪[1] 赵春雨 张延年[1] HAI Hong;ZHAO Chunyu;ZHANG Yannian(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《工业建筑》2023年第7期162-170,共9页Industrial Construction

基　　金：“十三五”国家重点研发计划项目(2019YFC1907202)。

摘　　要：针对辽宁某风电场采用的梁板式风机基础施工成本高、生态欠友好等缺点,提出一种新型锚杆倒肋式风机基础,并对该基础顶板、肋梁、锚杆等构件进行选型优化,以解决基础锚杆与基础锚固位置发生局部破坏等问题。利用ABAQUS有限元软件,通过对比锚杆倒肋式风机基础与梁板式风机基础的受力性能、经济性,进而验证锚杆倒肋式风机基础的可行性;为确定锚杆倒肋式风机基础的最优选型方案,对锚杆倒肋式风机基础在极端荷载工况下的混凝土应力、钢筋应力、位移及倾斜率进行数值模拟分析。结果表明:在该风电场的工程背景下,功率为2 MW风机的锚杆倒肋式基础设置顶板、8根肋梁、24根外斜内直锚杆,为最优选型方案,具有良好的应用前景。In view of the disadvantages of high construction costs and unfriendly ecology environment for beam-slab raft foundations of wind turbines used in a certain wind farm in Liaoning Province,a novel anchored inverted rib foundation of wind turbines was proposed.Simultaneously,optimized analysis on roofs,ribbed beams,anchor bolts and other members of the foundation was conducted to solve problems such as the local damage at the connection between anchor bolts and foundations.The finite element software ABAQUS was used to verify feasibility of anchored inverted rib foundations for wind turbines by comparing mechanical performances and economy between inverted rib foundations and beam-slab raft foundations.The stress in concrete and rebars,displacement and inclination ratios of inverted rib foundations in extreme load conditions were simulated to determine the optimal selection scheme of anchor inverted rib foundations.The results indicated that against the engineering background of the wind farm,the scheme for anchor inverted rib foundation of 2 MW wind turbines with roofs,8 ribbed beams and 24 external inclined and internal straight bolts was the optimal scheme,which had a good application prospect.

关 键 词：锚杆倒肋式基础 风机 基础优化 有限元 竖向位移 倾斜率 

分 类 号：TP315[自动化与计算机技术—计算机软件与理论]