摘要
750kV超长变电构架总长度406m,温度区段远超规范的要求,通过结构选型和力学计算分析,基于温度效应系数的比较,确定了超长构架的布置形式,并提出有效的温度效应控制措施。结合粘滞性阻尼滑移支座的应用,分析了滑移行程及滑移支座布置位置不同带来的影响,并通过有限元分析及足尺试验数据对比验证确定了构架滑移支座节点的连接构造,为工程实际应用提供技术支撑。
The total length of 750 kV super-long substation truss frame is 406 m,and the temperature segment length far exceeds the standard’s requirements.Through the selection of structure type and mechanics calculation and analysis,based on the comparison of the temperature effect coefficient,the layout of the super-long truss frame is determined,and the effective temperature-effect control measures are proposed.Combined with the application of viscous damping sliding supports,the influence of different slip-stroke and different positions of slip supports is analyzed.By comparing the finite element analysis with full-scale test data to determine the connection structure of sliding support,and provides the technical supports for the practical application of the project.
作者
周元强
田源
高志民
董向向
杨利生
ZHOU Yuanqiang;TIAN Yuan;GAO Zhimin;DONG Xiangxiang;YANG Lisheng(China Energy Engineering Group Jiangsu Power Design Institute Co.,Ltd.,Nanjing 211002,China;State Grid Ningxia Electric Power Company,Yinchuan 750001,China;State Grid Ningxia Electric Power Eco-Tech Research Institute,Yinchuan 750002,China;Shanghai Tonglei Civil Engineering Technology Co.,Ltd.,Shanghai 200092,China)
出处
《结构工程师》
北大核心
2019年第3期57-67,共11页
Structural Engineers
基金
国家电网公司科技项目资助(2017-146)
关键词
750kV变电构架
超长结构
温度作用
温度效应系数
滑移支座
750 kV substation truss frame
super-long structure
temperature action
temperature effect coefficient
sliding support
