【摘要】 目的 提出一种新型锚索倒肋式风机基础，已解决现有陆上风机基础尺寸大、材料用量多、挖方量大等缺点。方法 以2.5 MW风机为研究对象，采用ABAQUS有限元分析软件，建立锚索倒肋式与梁板式风机基础模型，对比两种基础在极端工况下的倾斜率、局部破坏等情况，并结合材料用量、挖方量对两种基础的经济性进行评价。结果 锚索倒肋式基础的水平位移为4.56 mm、脱开率为19%、倾斜率为0.287%、沉降量为18.29 mm,均满足规范要求；锚索倒肋式基础背风侧肋梁与墩台连接处及肋梁跨中底部发生轻微开裂，可通过增加肋梁截面高度解决；锚索未出现受拉屈服，埋设周围混凝土未发生局部破坏；锚索倒肋式基础比梁板式基础成本节省40%～60%。结论 锚索倒肋式基础结构设计合理，其抗倾覆稳定性、受力性能、经济性比梁板式基础更加优异，可应用于实际工程。更多还原

【Abstract】 In order to solve the disadvantages of large foundation size, large amount of material and large amount of excavation of the current onshore wind turbine, a new type of anchor cable inverted beam plate fan foundation was invented.Taking the 2.5 MW wind turbine as an example, the ABAQUS finite element analysis software is used to establish the foundation model of the anchor cable inverted beam plate fan foundation and the beam slab fan foundation.Then, the inclination rate, and local damage of the two foundations under extreme load conditions were compared, and the economics of the two foundations were compared in combination with the material consumption, the amount of earthwork excavation and other indicators.The horizontal displacement of the anchor cable inverted beam plate fan foundation is 4.56 mm, the detachment rate is 19%,the inclination rate is 0.287%,and the settlement is 18.29 mm, all of which meet the requirements of the design specification.Slight cracking occurs at the connection between the leeward side rib beam and the pier abutment and the mid-span bottom of the rib beam in the anchor cable inverted beam plate fan foundation, which can be solved by increasing the section height of the rib beam.The anchor cable does not yield under tension, and there is no local damage to the surrounding concrete.The anchor cable inverted beam plate fan foundation saves about 40%-60% of the cost compared to the beam slab fan foundation.The design of the anchor cable inverted beam plate fan foundation structure is reasonable, and its anti-overturning stability, mechanical performance and economy are better than that of the beam-slab foundation, which can be applied to practical projects.更多还原