【摘要】 冷弯型钢由于冷加工硬化的作用，强度提高，塑性下降。但如果用于中高层建筑受力构件，冷弯薄壁焊接型钢短柱，所能承受的荷载和变形能力究竟如何；钢管的形状、尺寸及柱内的加劲肋等许多因素对短柱的极限承载力、屈曲破坏等的影响；现行GBJ18－87《冷弯薄壁焊接型钢结构技术规范》中的有关条款是否适用，都是有必要加以探讨的。为了探讨轴心荷载作用下，这些因素对构件性能的影响，对两个钢种（Q235和10PCu－Re）的宝钢管柱共八个短柱进行了加载试验，在本文将给出试验结果和讨论情况。更多还原

【Abstract】 Because of hardening action from cold processing, the strength of cold-formed members is raised, hut the plasticity is lowered. However, if cold-formed members are used for load bearing short colunm, problems such as: capacity of bearable load and deformation; the fluence on the ultimate hearing capacity and buckling failure from various factors, like shape and size of the tube and stiffening rib; the applicability of relevant provisions of 《Technical Code of Cold-formed Welded Type Steel Structure》(GBJ18-87), are necessary to be pro bed into. Loading tests of 8 hollow short columns have been performed with two kinds of hollow specimen Q235 and 10PCu-Re, and in this paper the results of tests and the discussion are presented.更多还原