变电构架有凹陷损伤的圆钢管轴压杆件受力特点研究

Analysis of Dent-damaged Tubular Members' Behavior

以受损伤的圆钢管杆件为研究对象,采用数值积分方法研究其在一般受损条件下的轴压极限承载力的变化情况.讨论了不同损伤情况对杆件稳定承载力的影响.总结了这类杆件承载能力特点.为变电构架的可靠性提供理论依据,所得结论可供设计人员参考.

This paper studies round steel tubular members on the changing of their ultimate load-carrying capacity under general damaged conditions through numerical integral method. Influence of different damage conditions on the members＇ stability ultimate load-carrying capacity is discussed. The conclusions is helpful to the designers.