According to the theory of numerical integration calculation programs are complied to calculate the ultimate bearing capacity of damaged round steel tube members . thus the impacts of different damage notch depths and different damage zone lengths on round steel tube members " stability ultimate bearing capacity can be discussed 根据数值积分原理,编制受损圆钢管轴压杆件极限承载能力的计算程序,并对受损伤的杆件稳定极限承载力问题进行计算分析,讨论不同损伤情况对杆件稳定极限承载力的影响。