Creep Buckling Analysis of Concrete-Filled Steel Tubular Columns

ZHAO Renda; WU Debao; WANG Yongbao; JIA Yi; LIAO Ping

doi:10.3969/j.issn.0258-2724.20170371

Volume 54 Issue 3

Jun. 2019

Turn off MathJax

Article Contents

Abstract

References

Journal of Southwest Jiaotong University > 2019 > 54(3): 468-474.

LIU Tingbin, JIA Rubo, ZHANG Chenyu, JIN Wenqiang, ZHAO Jianchang. Bending Capacity Calculation Method for Corroded Reinforced Concrete Beams[J]. Journal of Southwest Jiaotong University, 2020, 55(4): 789-795. doi: 10.3969/j.issn.0258-2724.20190277

Citation:

ZHAO Renda, WU Debao, WANG Yongbao, JIA Yi, LIAO Ping. Creep Buckling Analysis of Concrete-Filled Steel Tubular Columns[J]. Journal of Southwest Jiaotong University, 2019, 54(3): 468-474. doi: 10.3969/j.issn.0258-2724.20170371

Citation:

PDF( 786 KB)

Creep Buckling Analysis of Concrete-Filled Steel Tubular Columns

doi: 10.3969/j.issn.0258-2724.20170371

Received Date: 09 May 2017
Rev Recd Date: 26 Oct 2017

Available Online: 23 Feb 2019

Publish Date: 01 Jun 2019

Abstract

Abstract

In order to investigate the influence of concrete creep on the long-term stability of concrete-filled steel tubular (CFST) columns under axial load, based on the energy method and age-adjusted effective modulus method, the long-term stability equations for the critical force of CFST columns with different boundary conditions considering creep and pre-buckling deformation were deduced using an instability criterion. The influence of the critical force and strength of the core concrete were studied. In addition, the value of the current standard and critical loads were compared. The results show that the critical load for creep stability of CFST columns is related to the creep coefficient; CFST columns with the same calculated length but different boundary conditions have the same long-term critical load. The influence of creep on the stability of the column decreased with increasing core concrete strength. When designing CFST columns with low-strength concrete using the current code for the design of concrete structures, additional attention should be paid to the influence of creep buckling. The long-term stability of the critical forces of CFST column was reduced obviously reduced in the first 60 days, which accounts approximately for 80% of the total decline. The bearing capacity of the steel tube tends to be stabilize after 100 days.
- concrete-filled steel tubular columns,
- creep buckling,
- energy method,
- effective modulus method,
- instability criterion

FullText(HTML)

References(21)

References

UY B. Static long-term effects in short concrete-filled steel box columns under sustained loading[J]. ACI Structural Journal, 2001, 98(1): 96-104.

HAN Linhai, LI Wei, BJORHOVDE R. Developments and advanced applications of concrete-filled steel tubular (CFST) structures:members[J]. Journal of Constructional Steel Research, 2014, 100: 211-228. doi: 10.1016/j.jcsr.2014.04.016

孙宝俊,熊学玉. 钢筋混凝土柱的徐变稳定性[J]. 建筑结构,1994(3): 26-28. doi: 10.3321/j.issn:1000-6869.1994.03.001

SUN Baojun, XIONG Xueyu. Creep stability of reinforced concrete column[J]. Building Structure, 1994(3): 26-28. doi: 10.3321/j.issn:1000-6869.1994.03.001

MORINO S, KSWANGUCHI J, CAO Z S. Creep behavior of concrete filled steel tubular members[C]//Proceeding of an Engineering Foundation Conference on Steel Concrete Composite Structures. Irsee: [s.n.], 1996: 514-524

NAKAI H, KURITA A, ICHINOSE L H. An experimental study on creep of concrete filled steel pipes[C]//Proceedings of 3rd International Conference on Japan Steel and Concrete Composite Structures. Fukuoka: [s.n.], 1991: 55-60

TERREY P J, BRADFORD M A, GILBERT R I. Creep and shrinkage of concrete in concrete-filled circular steel tubes[C]//Proceeding of 6th International Symposium on Tubular Structures. Melbourne: [s.n.], 1994: 293-298

BEHAN J E, O’CONNOR C. Creep buckling of reinforced concrete columns[J]. Journal of the Structural Division, 1982, 108(12): 2799-2818.

DISTEFANO J N. Creep buckling of slender columns[J]. Journal of the Structural Division,ASCE, 1965, 91(3): 127-150.

BAZANT Z P. Creep stability and buckling strength of concrete columns[J]. Magazine of Concrete Research, 1968, 20(63): 85-94. doi: 10.1680/macr.1968.20.63.85

林南薰. 混凝土和钢筋混凝土柱的徐变稳定性[J]. 土木工程学报,1987,20(3): 92-94.

LIN Nanxun. Creep stability of concrete and reinforced concrete columns[J]. Journal of Civil Engineering, 1987, 20(3): 92-94.

寿楠椿,张巍,竹学叶. 钢筋混凝土压杆徐变稳定性分析的有限元法[J]. 建筑结构,1996(11): 32-37.

SHOU Nanchun, ZHANG Wei, ZHU Xueye. Finite element method for analysis of creep stability of reinforced concrete compression bars[J]. Building Structure, 1996(11): 32-37.

BAZANT Z P. Prediction of concrete creep effects using age-adjusted effective modulus method[J]. Journal of the American Concrete Institute, 1972, 69: 212-217.

王玉银,刘昌永,张素梅. 铰接钢管混凝土圆弧拱平面内徐变稳定[J]. 工程力学,2011,28(3): 198-204.

WANG Yuying, LIU Changyong, ZHANG Sumei. In-plane creep buckling for pin-ended concrete-filled steel tubular circular arches[J]. Engineering Mechanics, 2011, 28(3): 198-204.

王振波, 乔燕, 马林. 结构力学[M]. 北京: 中国建材工业出版社, 2014: 275-280

РЖАНИЦЫН А Р. 结构力学[M]. 刘孝平, 译. 北京: 人民交通出版社, 1990: 203-210

龙驭球, 包世华, 匡文起, 等. 结构力学教程（Ⅱ）[M]. 北京: 高等教育出版社, 2001: 304-345

ACI Committee 209.2R. Prediction of creep, shrinkage and temperature effects in concrete structures: 978-0-87031-278-6[S]. Detroit: American Concrete Institute（ACI）, 2008

孙宝俊. 混凝土徐变理论的有效模量法[J]. 土木工程学报,1993,26(3): 66-68.

SUN Baojun. Effective modulus method of concrete creep theory[J]. Journal of Civil Engineering, 1993, 26(3): 66-68.

Comite Euro-international Du Beton. Fip model code for concrete structures 2010: Part 5, materials: 0-7277-1696-4[S]. London: Thomas Telford Services Ltd, 1993

王永宝,赵人达,徐腾飞,等. 钢管混凝土轴压构件徐变简化计算方法研究[J]. 公路交通科技,2016,33(1): 57-62. doi: 10.3969/j.issn.1002-0268.2016.01.009

WANG Yongbao, ZHAO Renda, XU Tengfei, et al. Study on simplified creep calculation method of CFST members under axial loading[J]. Journal of Highway and Transportation Research and Development, 2016, 33(1): 57-62. doi: 10.3969/j.issn.1002-0268.2016.01.009

中华人民共和国住房和城乡建设部. 混凝土结构设计规范: GB 50010—2010[S]. 北京: 中国建筑工业出版社, 2015

Relative Articles

Supplements(0)

Cited By

Proportional views