摘要
采用大型通用有限元分析软件ABAQUS,对外包型钢混凝土柱进行单向偏心受压模拟试验,通过4种不同偏心距的试件,分析外包型钢混凝土柱在单向偏心荷载作用下的破坏形态、荷载跨中挠度曲线、混凝土与缀条板的受压区荷载-应变曲线。分析表明,随着偏心距的增大,试件的极限承载力大幅度降低,试件达到极限承载力时跨中挠度明显增大。由于有外包钢的存在,故混凝土柱的变形能力和延性明显增强。
The unilateral eccentric compression test of steel encased concrete column was done using the largescale finite element analysis software ABAQUS. By means of four specimens with different eccentricity, it was analysed the failure patterns, load - deflection curve of concrete with batten plate, compression zone load - strain curve of the said specimens under eccentric load. The analysis showed that with the increase of eccentricity, the ultimate load-carrying capacity was greatly reduced; when specimen reached its ultimate bearing capacity the mid- span deflection was increased. Because of the existence of steel-encased concrete column, so the deformation capacity and ductility were increased apparently.
出处
《钢结构》
2012年第12期21-24,共4页
Steel Construction
关键词
外包型钢混凝土柱
有限元分析
单向偏心压弯
极限承载力
滞回曲线
steel encased concrete column
finite element analysis
one-way eccentric compression
ultimatebearing capacity
hysteretic curve
