摘要
随着中国电网技术的发展,杆塔负荷越来越大,八地脚螺栓塔座板应用越趋普遍。但现有计算理论与实际情况不符,为了使八地脚螺栓塔座板的计算方法合理、可靠,通过试验对八地脚螺栓刚性塔座板承载力进行了研究,同时借助有限元对构件进行了参数化分析。结合经典力学理论、试验及有限元数据,提出了全新的计算方法,引入了等效计算宽度和有效力臂的概念,充分考虑了底板刚度,屈曲后强度和垫板对承载力的影响,对工程设计具有指导意义。
With the Chinese power grid technology developed rapidly and the load applied on tower is going larger and larger, the tower base plate with eight anchor bolts has been used more commonly. Whilst the calculate theory is not comply with the actual condition. In order to make the calculate method more reasonable and reliable , The bearing capacity of Rigid tower base plate with eight anchor bolts is investigated through experiment and analytical parametric study was conducted to investigate the tower base plate by finite element method. Based on the result of experiment and finite element as well as classical mechanics theory, a new formula has been proposed which include the Equivalent calculating width and Equivalent calculating arm of force. This formula considered plate stiffness, post-buckling strength and subplate which influence the bearing capacity of tower base plate in this formula, thus the proposal formula is reasonable and effective, It is helpful in project design.
出处
《土木建筑与环境工程》
CSCD
北大核心
2017年第3期99-106,共8页
Journal of Civil,Architectural & Environment Engineering
基金
中南电力设计院有限公司科技项目(40-1A-KY201319-T02)~~
关键词
八地脚螺栓
刚性塔座板
等效计算宽度
等效计算力臂
有限元
承载力
Rigid tower base plate with eight anchor bolts
equivalent calculating width
equivalent calculating arm of force
finite element method
bearing capacity.
