摘要
通过对6根粘贴钢套管加固的方形截面混凝土试件和3根未加固的对比试件的试验,研究了钢加固混凝土短柱的轴心受压性能和约束机理。6个被加固试件中,其中3个试件在加固前施加了预压荷载。试验研究发现预先受力试件的承载力和极限变形能力略小于一次受力试件,但不论是在一次受力还是预先受力状态下,钢加固都能有效的提高混凝土短柱的抗压承载力。
Six axial-compressed concrete columns reinforced by steel and three corresponding non-reinforced concrete columns were tested. The behavior and confined mechanism of concrete columns which reinforced by steel tube have been research through the experiment. Among the 6 reinforced columns, 3 of them had initial compression. According the experimental result, there was little different of ultimate bearing and deformation capacity between initial compression specimens and others. Test results indicate that compress-resisted capacity of concrete column reinforced by steel can be improved.
出处
《建筑技术开发》
2007年第1期24-27,共4页
Building Technology Development
基金
高校博士点专项基金(20030532020)
关键词
加固
钢筋混凝土柱
轴心受压
二次受力
Steel tube reinforcement
Reinforced concrete column
Axial compression
Initial load
