【摘要】 介绍了包括空钢管柱、素混凝土钢管柱、配筋混凝土钢管柱及钢筋混凝土柱在内共36个试件的轴心受压试验情况.讨论了钢管的宽厚比、混凝土强度、配筋率等参数对极限承载力和延性等力学性能的影响.对混凝土填充钢管柱和钢筋混凝土填充钢管柱的力学性能进行了比较,结果表明,核心混凝土中配筋虽不能明显的提高承载力,但可以有效的提高其延性系数,改善试件的抗震性能.更多还原

【Abstract】 Experimental results of 36 specimens including steel tubular short columns,concrete-filled rectangular tubular (CFT) short columns,reinforced concrete-filled rectangular tubular (RCFT) short columns and reinforced concrete short columns are presented.Based on the experimental results,the ultimate capacity and ductility were investigated.The effects of the main factors such as width-thickness ratio,concrete strength,and reinforced ratio on the behavior of short columns were discussed as well.Especially,the differences between concrete-filled rectangular tubular (CFT) and reinforced concrete-filled rectangular tubular (RCFT) were compared.As a result,the reinforced filled concrete cannot enhance the ultimate capacity of specimens,but can improve the ductility of specimens and antivibration property.更多还原