摘要
以某半预制半现浇混凝土风机基础为研究对象,在其受压区和受拉区各选取一个关键节点进行ANSYS数值模拟,分析其受力情况,以此确定基础受力薄弱部位及预制肋梁和现浇混凝土的协同受力情况,为基础设计优化和合理配筋提供依据。研究结果表明:肋梁和中心台柱的结合部位以及肋梁与底板的结合部位是受力薄弱点;中心台柱承担大部分的荷载作用,尤其是与高强灌浆层和下锚板接触的部位,拉应力和压应力超过了设计要求;高强灌浆层的抗拉能力不足,锚栓、锚板以及塔筒底法兰所承受的应力均满足设计要求。
In this paper,a new semi precast concrete foundation is studied. ANSYS numerical simulation is performed on a key node in the compression zone and the tensile zone. The stress of the key node is analyzed, and the weak part is determined. The stress situation of precast ribbed beam and cast in place concrete is presented, which provides basis for design optimization and reasonable reinforcement. Results show：The binding site of rib beam and the center pillar and combined beams and floor area is weak part;Most load is beared by the center pillar,especially in contact with high strength grouting and anchor plate parts, tensile stress and compressive stress is more than the design requirements;The tensile strength of high strength grouting layer is insufficient,and the stress of anchor bolt,anchor plate and the bottom flange of the tower can meet the design requirements.
作者
王利楠
郝华庚
丛欧
宋欢
Wang Li＇nan;Hao Huageng;Cong Ou;Song Huan(Beijing Goldwind Science ＆ Creation Windpower Equipment Co. Ltd., Beijing 100176, China)
出处
《可再生能源》
CAS
北大核心
2017年第11期1719-1726,共8页
Renewable Energy Resources
关键词
风机基础
预制
肋梁
ANSYS
数值模拟
fan foundation
prefabrication
rib beam
ANSYS
numerical simulation
