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本文介绍了国内首次桅杆结构风洞试验，记录了格构式和单筒式桅杆模型的自振特性和风振响应测试结果。试验结果表明：①桅杆结构的非线性程度随风速的增大而增强；②桅杆结构在风振计算中应考虑多阶振型的影响，随着风速的加大，高振型的贡献增加；③在顺风荷载作用下，桅杆结构可能出现横风共振和混沌现象。
This paper introduces the wind tunnel test of the first mast structure in China, and records the self-vibration characteristics and the wind-induced vibration response test results of the lattice and single-cylinder mast models. The results show that: (1) the degree of nonlinearity of the mast structure increases with the increase of wind speed; (2) the influence of multi-order modes should be considered in the calculation of wind vibration; as the wind speed increases, the contribution of high- ; ③ In the windward load, the mast structure may appear horizontal wind resonance and chaos phenomenon.