Application Research on Q460 High-strength Steel Tube in Transmission Line Project
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Abstract
With the increasingly narrow power corridor, the tower type is developing to multi-loop and high load, and the application of high strength steel is imminent. Based on a 500 kV project, aimed at high wind speed, multi loop conditions, this paper analyzed and compared the tower type in many aspects, such as the domestic and foreign application type, material, structure arrangement, full-scale test, engineering measures. The results show that the weight of the steel tube can be reduced effectively by using Q460. The stiffness of the tower is good and the deflection is small. The test tower strength and construction measure meet the design requirements, and have certain safety reserves. Therefore, under the large load conditions, the application of Q460 high strength steel tube has obvious economic and social benefits.
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