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...
工程力学  2014 

截面方钢管支撑的弹塑性稳定性研究

, PP. 125-129

Keywords: 结构工程,变截面方钢管支撑,试验研究,有限元,稳定性

Full-Text   Cite this paper   Add to My Lib

Abstract:

结合轴心受压构件整体失稳的内力和变形特点,提出了变截面方钢管支撑。采用试验研究和有限元分析相结合的方法,研究变截面方钢管支撑的弹塑性稳定性,研究了用钢量相同情况下楔率对变截面方钢管支撑弹塑性稳定极限承载力的影响。研究结果表明变截面方钢管支撑在两端截面不变的情况下,随着楔率增大,稳定承载力明显提高,而且下降段更平缓,变截面方钢管稳定性优于等截面的情况。在用钢量相同的情况下,长细比较大时,变截面可以提高支撑的稳定承载力,适合应用在低烈度设防的框架-支撑体系中。长细比较小时,变截面可以改善支撑失稳后的受力性能,适合应用在高烈度设防的框架-支撑体系中。

References

[1]  武江, 张略秋, 黄长华. 钢框架柱间支撑侧移刚度简化计算及程序设计[J]. 山西建筑, 2010, 36(31): 52―54.
[2]  Wu Jiang, Zhang Lueqiu, Huang Changhua. Simplified calculation and program design of support lateral stiffness among steel frame columns [J]. Shanxi Architecture, 2010, 36(31): 52―54. (in Chinese)
[3]  Nascimbene R, Rassati G A, Wijesundara K K. Numerical simulation of gusset plate connections with rectangular hollow section shape brace under quasi-static cyclic loading [J]. Journal of Constructional Steel Research, 2012, 70(3): 177―189.
[4]  杨文侠, 顾强, 宋振森, 李东, 方有珍. Y形偏心支撑钢框架的地震反应折减系数和超强系数[J]. 工程力学, 2012, 29(10): 129―136.
[5]  Yang Wenxia, Gu Qiang, Song Zhensen, Li Dong, Fang Youzhen. Study on response modification factor and over strength factor of Y-eccentric braced steel frame [J]. Engineering Mechanics, 2012, 29(10): 129―136. (in Chinese)
[6]  陈骥. 钢结构稳定理论与设计[M]. 北京: 科学出版社, 2011: 88―92.
[7]  Chen Ji. Stability of steel structures-theory and design [M]. Beijing: Science Press, 2011: 88―92. (in Chinese)
[8]  Meng-Hao Tsai. A performance-based design approach for retrofitting regular building frames with steel braces against sudden column loss [J]. Journal of Constructional Steel Research, 2012, 77(1): 1―11.
[9]  Ali Davaran, Narges Easazadeh Far. An inelastic model for low cycle fatigue prediction in steel braces [J]. Journal of Constructional Steel Research, 2009, 65(1): 523―530.
[10]  Chang H Y, Chiu C K. Performance assessment of buckling restrained braces [J]. Procedia Engineering, 2011, 14(2): 2187―2195.
[11]  Smith W. G. Analytic solutions for tapered columns buckling [J]. Computers & Structures, 1988, 28(5): 677―680.
[12]  郭彦林, 潘湧. 变截面工形柱平面内稳定极限承载力研究[J]. 土木工程学报, 2004, 37(1): 13―19.
[13]  Guo Yanlin, Pan Yong. Research on in-plane ultimate load-carrying capacity of tapering I-shaped column [J]. China Civil Engineering Journal, 2004, 37(1): 13―19. (in Chinese)
[14]  邓科. 梭形变截面轴心受压柱的稳定性与设计方法研究[D]. 北京: 清华大学, 2005: 9―40.
[15]  Deng Ke. Studies on Stability Behavior and design method of shuttle- shaped axially loaded column [D]. Beijing: Tsinghua University, 2005: 9―40. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133