钢管钢纤维自应力自密实柱轴心受压性能
发布时间:2018-04-21 02:31
本文选题:钢管混凝土结构 + 自应力混凝土 ; 参考:《土木工程与管理学报》2017年02期
【摘要】:本文通过对6根短柱,包括2根钢管钢纤维自密实混凝土短柱、1根钢管自应力自密实混凝土短柱、1根钢管自密实混凝土短柱和2根钢管钢纤维自应力自密实混凝土短柱的轴心受压试验,分析初始自应力和钢纤维体积掺量对钢管钢纤维自应力自密实混凝土轴心受压短柱力学性能的影响。结果表明,初始自应力将显著提高短柱的承载力和刚度,但会导致其变形能力明显下降;掺入钢纤维可缓解自应力引起的变形能力的下降,并改善钢管对混凝土的约束作用。
[Abstract]:In this paper, through the analysis of six short columns, The axial compression tests of two steel tube steel fiber self-compacting concrete short columns and one steel tube self-compacting concrete short column and two steel tube steel fiber self-compacting concrete short columns are included. The effects of initial self-stress and volume content of steel fiber on the mechanical properties of steel fiber self-compacting concrete columns under axial compression are analyzed. The results show that the initial self-stress will significantly increase the bearing capacity and stiffness of the short column, but will lead to a significant decrease in its deformation capacity, and the addition of steel fiber can alleviate the decrease of the deformation capacity caused by the self-stress and improve the restraint effect of the steel tube on concrete.
【作者单位】: 武汉大学土木建筑工程学院;
【基金】:教育部博士点专项基金项目(20110141110002)
【分类号】:TU528.572
【相似文献】
相关期刊论文 前3条
1 水泥输油管研究协作组;;自应力混凝土在80℃原油中的性能——浅析钙矾石的热稳定性[J];膨胀剂与膨胀混凝土;2007年01期
2 兰海;基于工业副产物生产具有高自应力能的水泥[J];四川水泥;2002年04期
3 ;[J];;年期
相关硕士学位论文 前1条
1 满腾;纤维编织网增强自应力混凝土膨胀性能研究[D];吉林大学;2015年
,本文编号:1780564
本文链接:https://www.wllwen.com/kejilunwen/huagong/1780564.html