全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

核心钢管混凝土短柱轴压受力机理及设计方法研究

DOI: 10.13197/j.eeev.2015.03.79.jialp.010, PP. 79-85

Keywords: 核心钢管混凝土短柱,轴压受力机理,轴力分配规律,有限元分析,设计方法

Full-Text   Cite this paper   Add to My Lib

Abstract:

为研究核心钢管混凝土(CSTRC)短柱轴压受力机理及设计方法,完成了7个CSTRC柱和2个RC柱的轴压试验,采用有限元软件ABAQUS对CSTRC柱轴压全过程进行数值仿真。在试验验证的基础上,利用有限元模型研究了CSTRC柱的轴压机理和轴力分配规律。研究表明,核心钢管混凝土柱试件中,钢管对内部混凝土的约束作用明显,钢管外部混凝土对钢管的约束作用可以忽略,其承载力可按RC部分与钢管混凝土柱部分承载力进行线性叠加。根据有限元分析结果,提出了CSTRC柱中钢管混凝土部分的承载力发挥系数。本文成果可为CSTRC结构的设计和应用提供参考。

References

[1]  刘 阳, 郭子雄, 张志伟. 核心型钢混凝土柱的轴压比限值试验研究[J]. 地震工程与工程振动, 2008, 28(3): 82-86. LIU Yang, GUO Zixiong, ZHANG Zhiwei. Limit value of axial compression ratio for CSTRC columns[J]. Earthquake Engineering and Engineering Dynamics, 2008, 28(3): 82-86. (in Chinese)
[2]  刘 阳, 郭子雄, 欧阳文俊, 等. 核心型钢混凝土柱抗震性能及轴压比限值试验研究[J]. 土木工程学报, 2010, 43(6): 57-66. LIU Yang, GUO Zixiong, OUYANG Wenjun, et al. Experimental study of the seismic behavior and axial compression ratio limit of CSTRC columns[J]. Civil Engineering Journal, 2010, 43(6): 57-66. (in Chinese)
[3]  Lee J H, Fenves G L. A plastic-damage model for cyclic loading of concrete structures[J]. Journal of Engineering Mechanics, 1998, 124(8): 892-900.
[4]  刘 威. 钢管混凝土局部受压时的工作机理研究[D]. 福州: 福州大学, 2005. LIU Wei. Research on mechanism of concrete-filled steel tubulars subjected to local compression[D]. Fuzhou: Fuzhou University, 2005.(in Chinese)
[5]  过镇海, 张秀琴, 张达成, 等. 混凝土应力-应变全曲线的试验研究[J]. 建筑结构学报, 1982, 3(1): 1-12. GUO Zhenhai, ZHANG Xiuqin, ZHANG Dacheng, et al. Experimental investigation of the complete stress-strain curve of concrete[J]. Journal of Building Structures, 1982, 3(1): 1-12.(in Chinese)
[6]  韩林海, 陶 忠, 刘 威. 钢管混凝土结构-理论与实践[J]. 福州大学学报, 2001, 29(6): 24-34. HAN Linhai, TAO Zhong, LIU Wei. Concrete filled steel tubular structures from theory to practice[J]. Journal of Fuzhou University, 2001, 29(6):24-34.(in Chinese)
[7]  刘 阳, 郭子雄, 许鹏红, 等. 核心型钢混凝土柱轴压性能试验研究[J]. 建筑结构学报, 2015, 36(4): 68-74. LIU Yang, GUO Zixiong, XU Penghong, et al. Experimental study on axial compression behavior of core steel reinforced concrete columns[J]. Journal of Building Structures, 2015, 36(4): 68-74. (in Chinese)
[8]  Mander J B, Priestley M J N, Park R. Theoretical stress-strain model for confined concrete[J]. Journal of Structural Engineering, ASCE, 1988, 114(8): 1804-1826.
[9]  钟善桐. 钢管混凝土统一理论-研究与应用[M]. 北京: 清华大学出版社, 2006. ZHONG Shantong. The theroy of concrete filled steel tubular-study and application[M]. Beijing: Tsinghua University Press, 2006.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133