高强混凝土环梁加固风机基础

Reinforcement of Wind Turbine Foundation with High-strength Concrete Ring Beam

为研究受损风机基础采用高强混凝土环梁加固后的承载力性能,开展了基于ABAQUS平台的三维有限元分析。结果表明:高强混凝土环梁能改变基础的受力分布,使上部混凝土分担的弯矩增加,减小下法兰附近混凝土的应力集中;加固环梁的强度越大,上部混凝土和加固环梁分担的弯矩越多,采用高强度混凝土可提高基础的抗弯承载力;采取加固环梁加固风机基础,加大了基础埋深,使应力分布更均匀。

In order to study the bearing capacity of damaged wind turbine foundation strengthened with high-strength concrete ring beam,three-dimensional finite element analysis based on ABAQUS platform was carried out.The results show that high-strength concrete ring beam can change the stress distribution of foundation,increase the bending moment.The higher concrete compressive strength of ring beam is,the greater bearing capacity is.The ring beam increases the depth of foundation ring,and makes the stress distribution more uniform.