高强角钢塔双肢连接受压主材构件稳定性能研究进展

铁塔结构使用高强钢,能减轻结构自重,降低造价,节约能源,利于环保,具有良好的经济和社会效益.介绍了国内外学者针对高强钢铁塔双肢连接主材受压构件稳定受力性能方面取得的研究成果,从高强钢初始残余应力、钢材强度等级、板件局部屈曲性能、构件端部约束,以及构件整体失稳与板件局部屈曲的相关性等方面,分析了影响其稳定受力性能的因素及原因,为此类铁塔结构进一步的研究及设计提供参考.

Research Progress on Stability Behavior for Main Members Connected to High Strength Steel Angle Tower with Two Legs

The application of high strength steel in angle tower structures can reduce the structure weight and cost, save energy, protect environment and achieve good economic and social benefits. In the paper, recent researches on stability behavior of main members con- nected to high strength steel angle tower with two legs were comprehensively reviewed. The influence factors and causes of stability per- formance also were studied, including the initial residual stress of high strength steel, steel strength grades, the local buckling perform-ance of plates, the end restraint, and the correlation influence between plate local buckling and the overall instability of compression member. It may provide a reference for both relevant investigations and proposal of design idea.