高温后中空夹层钢管混凝土柱压弯机理分析

刘晓; 徐建烨; 王兵

doi:10.6052/j.issn.1000-4750.2017.06.S001

高温后中空夹层钢管混凝土柱压弯机理分析

沈阳大学建筑工程学院, 辽宁, 沈阳 110044

详细信息

作者简介:
徐建烨(1992-),男,吉林人,硕士生,从事防灾减灾研究(E-mail:15502451836@163.com)王兵(1974-),男,沈阳人,教授,硕士,从事防灾减灾研究(E-mail:wangbing616@163.com)

通讯作者:
刘晓(1974-),女,沈阳人,教授,博士,从事防灾减灾研究(E-mail:liuxiao19740701@sina.com).

中图分类号: TU398+.9
计量
- 文章访问数: 313
- HTML全文浏览量: 66
- PDF下载量: 21
出版历程
- 收稿日期: 2017-05-31
- 修回日期: 2018-01-11
- 刊出日期: 2018-06-29

Mechanical behavior analysis of concrete filled double skin steel tubular columns after high temperature

School of Architectural and Civil Engineering, Shenyang University, Shenyang 110044, China

摘要

摘要: 为了研究高温后中空夹层钢管混凝土压弯柱力学性能，该文设计24根压弯构件，选取合适的本构参数，利用ABAQUS有限元软件进行分析，并与相应的试验参数作对比，有限元结果与相应的试验结果对比吻合良好。该文中设置轴压比、温度、空心率等参数并研究其对跨中P-Δ曲线的影响。该文对高温后中空夹层钢管混凝土压弯柱工作机理和破坏模态进行分析，结果表明：随着温度的升高、轴压比的变大，构件横向承载能力变小。随着温度的升高，轴压比的变小，构件的位移延性变好。不超过500℃时，构件抗弯承载能力随着空心率的变大而变小，超过500℃，构件抗弯承载能力随着空心率的变大而变大，但空心率对构件抗弯能力的影响不大。
- 高温后 /
- 中空夹层混凝土 /
- 压弯构件 /
- 有限元 /
- P-Δ曲线
Abstract: In order to analysis the mechanical behavior of concrete-filled double-skin steel tubular (CFDST) columns after high temperature, this authors design 24 CFDST columns, with appropriate constitutive parameters, and use ABAQUS finite element software for analysis. These parameters are compared with corresponding experimental parameters and good agreement is found. The influence of parameters such as axial pressure ratio, temperature and hollow rate on P-Δ curve is studied. In this paper, the working mechanism and the destruction mode of concrete pressure bending column of are analyzed. The results showed that when the temperature increases, the axial pressure ratio increases, and the transverse load capacity of the component decreases. As the temperature increases, the axial pressure ratio decreases, and the displacement ductility of the component becomes better. When the temperature is no more than 500℃, the flexural bearing capacity becomes larger with hollow components turning smaller. When temperature is over 500℃, the bearing capacity of bending members becomes larger with hollow rate turning larger. The hollow rate has little effect on the bending ability of the component.
- after high temperature /
- CFDST /
- compression-flexure member /
- FEA /
- P-Δ curve

HTML全文

参考文献(12)

[1]	韩林海. 钢管混凝土结构[M]. 北京:科学出版社, 2004:1-2. Han Linhai, Concrete filled steel tubular structures[M]. Beijing:Beijing Science Press, 2004:1-2. (in Chinese)
[2]	Zhao X L, Grzebieta T, Elchalakani M. Tests of concrete-filled double skin circular hollow sections[C]. First Inter. Confer. On Steel & Composite Structures. Pusan, Korea, June, 2001:283-290.
[3]	Zhao X L, Grzebieta R. Strength and ductility of concrete filled double skin (SHS Inner and SHS Outer) tubes[J]. Thin-Walled Structures, 2002, 40:199-233.
[4]	Yacishita, Kitoh H, Sugimoto M, Tanihira T, Sonoda K. Double skin composite tubular c0 lumns subjected to cyclic horizontal force and constant axial force[C]. Proc. of 6th Inter. Confer. on Steel and Concrete Composite Structures. USA, Apr, 2000:497-503.
[5]	Zhao X L, Grzebieta R H, Ukur A, Elchalakani M. Tests of concrete-filled double skin (SHS outer and CHS inner) composite stub columns[J]. Advances in Steel Structures (ICASS' 02), 2002, 1:567-574.
[6]	Wei Li, Lin-Hai Han, Xiao-Ling Zhao. Axial strength of concrete-filled double skin steel tubular columns with preload on steel tubes[J]. Thin-Walled Structures. March, 2012, 56:9-20.
[7]	黄宏. 中空夹层钢管混凝土压弯构件的力学性能研究[D]. 福州:福州大学, 2006. Huang Hong. Behavior of concrete filled double skin steel tubular beam-columns[D]. Fuzhou:Fuzhou University, 2006. (in Chinese)
[8]	余鑫, 陶忠. 中空夹层钢管混凝土轴压短柱火灾后剩余承载力的试验研究[J]. 工业建筑, 2009, 39(4):9-13. Yu Xin, Tao Zhong. Residual strength of concrete-filled double-skin steel tubular stub columns after exposure to fire[J]. Industrial Construction, 2009, 39(4):9-13. (in Chinese)
[9]	刘晓, 麻路, 王兵. 高温后方中空夹层钢管混凝土柱轴压机理分析[J]. 工程力学, 2014, 31(增刊I):183-189. Liu Xiao, Ma Lu, Wang Bing. Mechanical properties analysis of concrete filled double skin steel tubular columns subjected to axial compression after high temperature[J]. Structure Engineering, 2014, 31(Suppl1):183-189. (in Chinese)
[10]	ACI-318-89, American Concrete Institute. Building code requirements for structural concrete and commentary[S]. Detroit:Farmington Hill, 1999.
[11]	姜绍飞, 刘明. 高温后不同截面钢管混凝土轴压构件的实验研究[J]. 东北大学学报(自然科学版), 2002, 23(9):891-894. Jiang Shaofei, Liu Ming, Experimental investigation on different cross section members of concrete filled steel tube (CFST) after elevated temperature[J]. Journal of Northeastern University (Natural Science), 2002, 23(9):891-894. (in Chinese)
[12]	任攀. 火灾后中空夹层钢管混凝土构件滞回性能研究[D]. 沈阳:沈阳大学, 2017. Ren Pan. Study on hysteretic behavior of concrete filled double skin steel tubular members after exposed to fire[D]. Shenyang:Shenyang University, 2017. (in Chinese)

施引文献(14)

期刊类型引用(5)

1.	闫西峰，郝际平，赵衍刚. 考虑有效混凝土强度的中空夹层钢管混凝土短柱轴压性能研究. 工程力学. 2024(11): 145-156 . 本站查看
2.	张颖，赵晖，王蕊，陈鹏. 外包不锈钢管中空夹层钢管混凝土压弯构件N_u-M_u相关曲线研究. 工程力学. 2023(02): 124-134 . 本站查看
3.	吕晓，赵瑞丽，舒赣平，张鑫，杜二峰，王文明. 中空夹层圆钢管超高强混凝土短柱火灾后承载性能试验研究. 西安建筑科技大学学报(自然科学版). 2022(04): 543-550 . 百度学术
4.	张世钧，邹昀，王城泉，吴艺超，陈明. 横肋波纹钢板-方钢管混凝土组合柱双向偏压力学性能研究及承载力计算. 工程力学. 2021(06): 81-90 . 本站查看
5.	李佳奇，王蕊，赵晖，王会文. 外包不锈钢中空夹层钢管混凝土柱耐火性能研究. 工程力学. 2020(10): 125-133 . 本站查看