基于ABAQUS的圆钢管活性粉末混凝土短柱受压性能分析  

PRESSURE PERFORMANCE ANALYSIS OF CIRCULAR TUBULAR ACTIVE POWDER CONCRETE SHORT COLUMN BASED ON ABAQUS

作　　者：王一凤 徐凤华 徐壮壮 WANG Yifeng;XU Fenghua;XU Zhuangzhuang(College of Civil Engineering and Architecture,Shandong University of Science and Technology,Shandong Qingdao 266590,China)

机构地区：[1]山东科技大学土木工程与建筑学院

出　　处：《低温建筑技术》2019年第10期41-43,共3页Low Temperature Architecture Technology

摘　　要：活性粉末混凝土作为一种高强混凝土,具有很好的抗压性能。但是极易发生脆性破坏,在活性粉末混凝土中掺加钢纤维并且外套钢管可以很好地改善其力学性能。文中利用ABAQUS对圆钢管钢纤维活性粉末混凝土短柱轴心受压与偏心受压承载力进行分析得到,随着套箍系数的增大,两种受力情况下的圆钢管活性粉末混凝土柱的承载能力均有不同程度的提高。随着偏心距的增加,变形也由局部发生鼓曲变形转变为局部鼓曲变形伴随着侧向挠曲变形,圆钢管活性粉末混凝土柱的承载力也逐渐降低。Active powder concrete,as a kind of high strength concrete,has good compressive performance.However,brittle damage is very easy to occur.The mechanical properties of reactive powder concrete can be improved by adding steel fiber to it.In this paper,ABAQUS is used to analyze the bearing capacity of circular steel tubular fiber active powder concrete shaft and eccentric pressure.With the increase of eccentricity,the deformation also changed from local buckling deformation to local buckling deformation accompanied by lateral buckling deformation,and the bearing capacity of circular tubular active powder concrete columns gradually decreased.

关 键 词：活性粉末混凝土 套箍系数 偏心受压 ABAQUS 

分 类 号：TU323.1[建筑科学—结构工程]