|Table of Contents|

Calculation method of critical buckling stress for stiffened plate with closed ribs(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年05期
Page:
37-42
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Calculation method of critical buckling stress for stiffened plate with closed ribs
Author(s):
ZHANG Qian1; 2;  DI Jin1;  ZHOU Xu-hong1; 2; 3
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, Gansu, China; 3. School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
Keywords:
bridge engineering;  orthotropic steel box girder;  stiffened plate;  closed rib;  energy method;  torsional strain energy;  critical buckling stress
PACS:
U448.213
DOI:
-
Abstract:
A calculation method of critical buckling stress for stiffened plate with closed ribs was proposed by using energy method under unidirectional uniform pressure and simply supported on four sides. The influence of torsional rigidity of stiffened ribs was considered, the whole flexural rigidity of mother board and stiffened ribs was calculated according to the centroid of actual section. The stiffened plates with closed trapezoidal ribs in the steel box girder of Suzhou-Nantong Bridge were taken as example, the critical buckling stresses calculated by Timoshenko method, Ichiro Konishi method, shell finite element method and the proposed energy method were compared. Analysis result shows that when the length-width ratio β of stiffened plate is less than 1, the ratio λ values of critical buckling stress to steel yield strength calculated by Timoshenko method and Ichiro Konishi method are greater than the calculation value of energy method. When β is between 1 to 6, the λ values calculated by Timoshenko method and Ichiro Konishi method are less than the calculation value of energy method. When β is between 3 to 6, the calculation value of energy method is most approaching with the result of finite element analysis, their difference is between 9% to 25%. So the proposed energy method is feasible to analyze the elastic stabilities of top and bottom plates for orthotropic steel box girder. 2 tabs, 6 figs, 15 refs.

References:

[1] 李立峰,邵旭东.正交异性闭口加劲板的承载力分析理论及试验研究[J].土木工程学报,2007,40(6):42-48. LI Li-feng, SHAO Xu-dong. Theoretical study and model test on the capacity of orthotropic U-rib stiffened plates[J]. China Civil Engineering Journal, 2007, 40(6): 42-48.(in Chinese)
[2] 李立峰,邵旭东,易伟建,等.扁平钢箱梁局部稳定模型试验[J].中国公路学报,2007,20(3):60-65. LI Li-feng, SHAO Xu-dong, YI Wei-jian, et al. Model test on local stability of flat steel box girder[J]. China Journal of Highway and Transport, 2007, 20(3): 60-65.(in Chinese)
[3] 程 斌,肖汝诚,赵金城.双轴受压小刚度加劲厚板的极限强度计算[J].土木工程学报,2010,43(6):87-93. CHENG Bin, XIAO Ru-cheng, ZHAO Jin-cheng. Calculation of ultimate strength for slightly stiffened thick panels under biaxial compression[J].China Civil Engineering Journal, 2010, 43(6): 87-93.(in Chinese)
[4] 狄 谨,周绪红,吕忠达,等.正交异性钢箱梁U型肋加劲板极限承载力试验[J].中国公路学报,2009,22(2):59-64. DI Jin, ZHOU Xu-hong, LU Zhong-da, et al. Experiment on ultimate bearing capacity of U-stiffened plate of orthotropic steel box girder[J].China Journal of Highway and Transport, 2009, 22(2): 59-64.(in Chinese)
[5] 胡毓仁,陈伯真,孙久龙.纵向受压板架加强筋扭转屈曲临界应力公式[J].上海交通大学学报,2002,36(1):95-98. HU Yu-ren, CHEN Bo-zhen, SUN Jiu-long. Equation for predicting tripping stress of stiffeners in stiffened panels[J]. Journal of Shanghai Jiaotong University, 2002, 36(1): 95-98.(in Chinese)
[6] 王志伟.按无量纲屈服准则分析正交异性板的极限荷载[J].哈尔滨工业大学学报,2002,34(2):282-284. WANG Zhi-wei. Orthotopic board analysis of limit loads by dimensionless stress yield criterion[J]. Journal of Harbin Institute of Technology, 2002, 34(2): 282-284.(in Chinese)
[7] GRONDIN G Y, ELWI A E, CHENG J J R. Buckling of stiffened steel plates—a parametric study[J]. Journal of Constructional Steel Research, 1999, 50(2): 151-175.
[8] BEDAIR O K. Stability, free vibration, and bending behavior of multistiffened plates[J]. Journal of Engineering Mechanics, 1997, 123(4): 328-337.
[9] BUTLER R, LILLICO M, HUNT G W, et al. Experiments on interactive buckling in optimized stiffened panels[J]. Structural and Multidisciplinary Optimization, 2001, 23(1): 40-48.
[10] GREGOR P, WOLLMANN P E. Steel girder design per AASHTO LRFD specifications(Part 2)[J]. Journal of Bridge Engineering, 2004, 9(4): 375-381.
[11] GHAVAMI K, KHEDMATI M R. Numerical and experimental investigations on the compression behaviour of stiffened plates[J]. Journal of Constructional Steel Research, 2006, 62(11): 1087-1100.
[12] HUGHES O F, GHOSH B, CHEN Y. Improved prediction of simultaneous local and overall bucking of stiffened panels[J].Thin-Walled Structures, 2004, 42(6): 827-856.
[13] CHOU C C, UANG C M, SEIBLE F. Experimental evalu-ation of compressive behavior of orthotropic steel plates for the new San Francisco-Oakland Bay Bridge[J]. Journal of Bridge Engineering, 2006, 11(2): 140-150.
[14] 康孝先.大跨度钢桥极限承载力计算理论与试验研究[D].成都:西南交通大学,2009. KANG Xiao-xian. Calculation theories and tests research on the ultimate capacity of the long-span steel bridges[D]. Chengdu: Southwest Jiaotong University, 2009.(in Chinese)
[15] 吴 冲,曾明根,冯凌云.苏通大桥正交异性板局部模型极限承载力试验[J].桥梁建设,2006(2):21-23,35. WU Chong, ZENG Ming-gen, FENG Ling-yun. Local part model test for ultimate bearing capacity of orthotropic panel of Sutong Bridge[J]. Bridge Construction, 2006(2): 21-23, 35.(in Chinese)

Memo

Memo:
-
Last Update: 2012-11-05