钢筋钢纤维高强混凝土柱横向承载静力试验研究*
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（1 天津城建大学天津市土木建筑结构防护与加固重点实验室，天津 300384； 2 天津大学建筑工程学院，天津 300072）
［摘要］通过6根钢筋钢纤维高强混凝土柱的横向承载静力试验，研究了其承载力、刚度、延性及破坏形态，探讨了钢纤维种类、轴力对其抗弯剪性能、横向荷载-跨中挠度曲线及延性的影响。试验结果表明，钢纤维的掺入显著提高了钢筋混凝土柱的横向承载力及延性，且超细钢纤维（MF）的提高效果优于螺旋形钢纤维（TF）。另外，所采用的轴力对钢筋钢纤维高强混凝土柱的横向承载力、刚度及其延性也具有较大的增强作用。［关键词］钢纤维高强混凝土; 轴力; 承载力; 延性; 静力试验中图分类号：TU398 文献标识码：A 文章编号：1002-848X(2016)04-0074-05
Experimental study on transverse static bearing capacity of steel fiber reinforced high strength concrete columnsLiu Shenyong1, Liu Zhongxian1, Xu Shenchun2, Jin Hewei1(1 Tianjin Key Laboratory of Civil Structure Protection and Reinforcement, Tianjin Chengjian University, Tianjin 300384, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)Abstract:Transverse static bearing capacity experiments of 6 steel fiber reinforced high strength concrete columns were carried out to study bearing capacity, stiffness, ductility and failure mode and to discuss the effect of steel fiber type and axial force on the moment-shear resistance performance, transverse load-midspan deflection curve and the ductility. Experimental results show that mixing steel fiber greatly improves the transverse bearing capacity and ductility of steel reinforced concrete column. The improving effect for superfine fiber is better than that for spiral fiber. Moreover, the adopted axial force can also improve the transverse bearing capacity, stiffness and ductility of steel fiber reinforced high strength concrete columns.Keywords:steel fiber reinforced high strength concrete; axial force; bearing capacity; ductility; static experiment
*天津市科技支撑计划项目（14ZCZDSF00016）,国家科技支撑计划项目（2012BAJ07B05）。
通讯作者：刘中宪，博士，副教授，Email: zhongxian1212@163.com。
