采用低风压导线的输电塔线体系风致响应研究  

Research on Wind-induced Responses of Transmission Tower-line System with Low Wind Pressure Conductors

作　　者：屠忠祥 陈波[1] 王伟煌 TU Zhong-xiang;CHEN Bo;WANG Wei-huang(Hubei Key Laboratory of Roadway Bridge and Structural Engineering,Wuhan University of Technology,Wuhan 430070,China;Guangdong Power Grid Energy Development Co.,Ltd,Guangzhou 510160,China)

机构地区：[1]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070 [2]广东电网能源发展有限公司,广州510160

出　　处：《武汉理工大学学报》2022年第5期62-67,共6页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51978549)。

摘　　要：建立了低风压导线的的力学模型,在此基础上建立了采用低风压导线的输电塔线体系分析模型和运动方程。采用非线性迭代对低风压导线的受力平衡方程进行求解,在非线性迭代过程中建立了位移收敛准则。以沿海地区某实际输电线路为对象,研究了低风压导线对塔线体系抗风性能的影响。结果表明:采用低风压导线可以有效地减小输电塔线体系的风致响应和风致应力。The research on wind-induced responses of transmission tower-line system with low wind pressure conductors was actively conducted.The analytical model of low wind pressure conductor was established at first and then analytical model and equilibrium equation of a transmission line system with low wind pressure conductors were constructed.The equilibrium equation of a tower-line system were solved by using nonlinear iteration method with displacement convergenre criterion.A real transmission line in coastal areas was taken as an example to investigate the effects of low wind pressure conductors on wind-induced responses of the tower-line system.The results show that the wind-induced dynamic responses of the transmission tower-line system can be suppressed using low wind pressure conductors.

关 键 词：低风压导线 索单元 风荷载 非线性响应 

分 类 号：O346.5[理学—固体力学]