[1]高春彦,张 欢,杨华冠.钢管约束粉煤灰钢筋混凝土轴压短柱力学性能试验研究[J].西安建筑科技大学学报:自然科学版,2015,47(03):354-358.[doi:10.15986/j.1006-7930.2015.03.008]
　GAO Chunyan,ZHANG Huan,YANG Huaguan.Experimental study on mechanical behavior of the steel tubular confined reinforced concrete stub columns with fly ash under axial compression[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(03):354-358.[doi:10.15986/j.1006-7930.2015.03.008]
点击复制

钢管约束粉煤灰钢筋混凝土轴压短柱力学性能试验研究()
分享到：

西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年03期
页码:
354-358
栏目:
出版日期:
2015-06-30

文章信息/Info

Title:
Experimental study on mechanical behavior of the steel tubular confined reinforced concrete stub columns with fly ash under axial compression
文章编号:
1006-7930(2015)03-0354-05
作者:
高春彦1; 2; 张 欢1; 杨华冠1
(1. 内蒙古科技大学建筑与土木工程学院,内蒙古 包头 014010;2. 南京航空航天大学航空宇航学院,江苏 南京 210016)
Author(s):
GAO Chunyan 1; 2;  ZHANG Huan 1;  YANG Huaguan 1
(1. Architecture and Civil Engineering Institute, Inner Mongolia University of Science and Technology, Baotou 014010, China; 2. College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
关键词:
圆钢管约束钢筋混凝土; 径厚比; 粉煤灰取代率; 轴压承载力; 延性
Keywords:
circular steel tube confined reinforced concrete;  diameter-thickness ratio;  fly ash replacement rate;  axial bearing capacity;  ductility
分类号:
TU398
DOI:
10.15986/j.1006-7930.2015.03.008
文献标志码:
A
摘要:
以混凝土中粉煤灰取代率（0、10%、30%和50%）和钢管径厚比（55、73 和110）为主要参数，完成了12 个钢管约束钢筋混凝土短柱的轴压试验．研究了试件的破坏模式、极限承载力、荷载—应变关系等，分析了试验参数对试件力学性能的影响规律．试验结果表明：试验结束时钢管向外凸曲，径厚比为110 试件的钢管出现纵向或斜向撕裂；核心混凝土发生斜向剪切破坏，钢筋被压屈．随着钢管径厚比的增加，试件的承载力和延性均降低；随着粉煤灰取代率的增加，试件的承载力降低，但达到极限荷载时的变形和钢管应变均增加，因此试件的延性增加．由试验结果分析可知，当粉煤灰取代率不大于30%，钢管径厚比不大于100 时，钢管约束钢筋混凝土轴压短柱的综合力学性能最优，研究成果可为实际工程应用提供试验依据．
Abstract:
With the fly ash replacement rate (0, 10%, 30% and 50%) and diameter- thickness ratio (55, 73 and 110) of the steel tube as the main parameters, the axial compression test of 12 circular steel tubular confined reinforced concrete stub columns were accomplished. The failure modes, ultimate bearing capacity and load-strain relations of the specimens were studied, and the influence laws of experimental parameters on the mechanical properties of specimens were analyzed. The test results indicate that the steel tube curved outward, which also were torn along the longitudinal or oblique direction for the specimens with 110 diameter-thickness ratio, the oblique shear failure occurred for the core concrete and the steel bars were buckled at the end of the test. With the increase of diameter- thickness ratio of steel tube, the bearing capacity and ductility of specimens decrease. With the increase of fly ash replacement rate, the bearing capacities of specimens droped, and as the deformations of specimens and strains of steel tube when reaching the ultimate loads increase, the ductility of the specimen increase. It can be found by analyzing the test results that the mechanical performances of circular steel tube confined reinforced concrete stub columns are optimal when the fly ash replacement rate is not more than 30% and the diameter- thickness ratio of steel tube is not more than 100. The research results can provide experimental basis for practical engineering application.

参考文献/References:

[1] TOMII M, Sakino K,Xiao Y,Watanabe K.Earthquake resisting hysteretic behavior of reinforced concrete short columns confined by steel tube [C].Proceeding of the International Specialty Conference on Concrete Filled Steel Tubular Structures.Harbin,China,1985:119-125.

[2] 肖岩.套管钢筋混凝土结构的发展与展望[J].土木工程学报,2004,37(4):8-12.

XIAO Yan. Development and prospects of tubular reinforced concrete column structure [J].China Civil Engineering Journal, 2004, 37(4):8-12.

[3] 周绪红,甘丹,刘界鹏,等.方钢管约束钢筋混凝土轴压短柱试验研究与分析[J].建筑结构学报, 2011,32(2):68-74.

ZHOU Xuhong, GAN Dan, LIU Jiepeng, et al. Experiment and analysis on square tubed reinforced concrete stub columns under axial compression [J]. Journal of Building Structures, 2011, 32(2):68-74.

[4] 周绪红,刘界鹏,张素梅.圆钢管约束钢筋混凝土短柱抗震性能试验研究.建筑结构学报.2010,31(7):56-63.

ZHOU Xuhong, LIU Jiepeng, ZHANG Sumei. Seismic behavior of circular tubed reinforced concrete short columns[J]. Journal of Building Structures, 2010, 31(7):56-63.

[5] 张素梅, 刘界鹏, 马乐, 等.圆钢管约束高强混凝土轴压短柱的试验研究与承载力分析[J]. 土木工程学报,2007,40(3):24-31.

ZHANG Sumei, LIU Jiepeng, Ma Le, et al. Axial compression test and analysis of circular tube confined HSC stub columns[J]. China Civil Engineering Journal, 2007, 40(3):24-31.

[6] 刘界鹏, 张素梅, 郭兰慧.方钢管约束高强混凝土短柱轴压力学性能[J]. 哈尔滨工业大学学报,2008,40(10):1542-1545.

LIU Jiepeng, ZHANG Sumei, GUO Lanhui. Axial compression of behavior square tube confined high strength concrete (HSC) short columns [J]. Journal of Harbin Institute of Technology, 2008,40(10): 1542-1545.

[7] 肖建庄, 杨洁, 黄一杰, 等.钢管约束再生混凝土轴压试验研究[J].建筑结构学报,2011,32(6):92-98.

XIAO Jianzhuang, YANG Jie, HUANG Yijie, et al. Experimental study on recycled concrete confined by steel tube under axial compression [J]. Journal of Building Structures, 2011 ,32(6):92-98.

[8] 甘丹.钢管约束混凝土短柱的静力性能和抗震性能的研究[D].兰州：兰州大学,2012.

GAN Dan. Static and seismic behavior of steel tube confined concrete short columns [D].Lanzhou University, 2012.

[9] 张小冬, 马忠吉, 白福波, 等.大连市体育馆钢管约束钢筋混凝土短柱设计[J].建筑结构.2011,41(4):49-51.

ZHANG Xiaodong, MA Zhongji, BAI Fubo, et al. Design of tubed RC short columns in Dalian Gymnasium[J]. Building Structure, 2011,41(4):49-51.

[10] 窦立军.钢管粉煤灰混凝土轴心受压构件的承载能力试验研究[J].长春工程学院学报,2010,11(3): 7-10.

DOU Lijun.The experiment research on bearing capacity of filled fly ash concrete into steel tube under axis compressive force [J]. Journal of Changchun Institute of Technology, 2010 ,11(3): 7-10.

[11] 张晶.钢管粉煤灰混凝土轴心受压构件徐变性能研究[D].北京:北京交通大学,2011.

ZHANG Jing. The research of properties for creep of axial compression fly ash concrete-filled steel tubular members [D].Beijing: Beijing Jiao tong University, 2011.

相似文献/References:

[1]高春彦,刘明洋,段雅鑫,等.钢管约束钢筋混凝土受压构件力学性能试验研究[J].西安建筑科技大学学报:自然科学版,2019,51(06):833.[doi:10.15986/j.1006-7930.2019.06.009]
　GAO Chunyan,LIU Mingyang,DUAN Yaxin,et al.Experimental study on mechanical properties of the tube confined reinforced concrete compression members[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2019,51(03):833.[doi:10.15986/j.1006-7930.2019.06.009]

备注/Memo

备注/Memo:
收稿日期：2015-01-13   修改稿日期：2015-05-25
基金项目：国家自然科学基金（11172131）；内蒙古自然科学基金（2012MS0711）
作者简介：高春彦（1978-），博士生，副教授．主要从事土木工程，组合结构与结构抗震方面研究．E-mail:.gao-197844@163.com.
更新日期/Last Update: 2015-09-01