摘要
通过理论计算与有限元分析方法,对钢筋混凝土塔筒进行屈曲与稳定性分析。计算结果表明,预应力下的钢筋混凝土最大静应力出现在门洞边缘位置,线性屈曲分析由于未考虑非线性因素的影响,得到的临界载荷偏大,而非线性屈曲分析得到的结果可作为对工程算法的修正。随着风力机功率的增加,塔筒高度也不断增加,深入研究钢筋混凝土塔筒的结构特性,为钢筋混凝土结构塔筒工程应用奠定基础。
The calculation results show that the maximum static stress of reinforced concrete under prestress occurs at the edge of the door. The linear buckling analysis does not consider the influence of nonlinear factors,and the critical load obtained is too large. The results obtained by nonlinear buckling analysis can be used as engineering algorithm correction. As the power of the wind turbine increases,the height of the tower is also increasing. The structural characteristics of the reinforced concrete tower are deeply studied,which lays a foundation for the application of the reinforced concrete tower.
作者
杜静
杨瑞伟
李东坡
许亚能
Du Jing;Yang Ruiwei;Li Dongpo;Xu Yaneng(College of Mechanical Engineering,Chongqing University,Chongqing 400044,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第3期9-14,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51005255,51405052)。
关键词
风力机
静力学分析
屈曲分析
临界屈曲载荷
混凝土塔筒
wind turbine
static analysis
buckling analysis
critical buckling load
reinforced concrete tower
