摘要
通过设计制作7个钢管混凝土叠合柱试件,进行偏心受压试验,研究钢管混凝土试件从加载到破坏的全过程,考察试件破坏形态,实测各试件的极限承载力和荷载-纵向位移曲线,分析了偏心距对钢管混凝土叠合柱压弯性能的影响。试验结果表明,偏心距越大,钢管混凝土叠合柱的极限承载力越低;根据试件的破坏形态,钢管混凝土叠合柱表现为大偏心受压和小偏心受压两种不同的破坏形态。
By designing seven concrete - filled steel tubular columns for eccentric compression tests,this paper states the process from loading to destruction and the fracture morphology of test specimens,and the extreme bearing capacity and load - lengthtravel curve are measured,further effects of eccentricity on hydraulic properties of reinforced concrete column is analyzed in the present paper.According to the results, with the increase of eccentricity,the extreme bearing capacity of column reduces.In terms of fracture morphology of specimens,reinforced concrete column has two fracture forms：small eccentricity press and big one.
出处
《建材技术与应用》
2011年第2期1-3,共3页
Research and Application of Building Materials
基金
国家自然科学基金(50878013)
高等学校博士点科研基金(200800061008)
关键词
钢管混凝土柱
偏心受压试验
极限承载力
破坏形态
reinforced concrete column
eccentricity compression test
extreme bearing capacity
fracture morphology
