|Table of Contents|

Research on Lateral Stability Factor of Welded I-section Beams Under Pure Moment(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2012年02期
Page:
89-95
Research Field:
Publishing date:

Info

Title:
Research on Lateral Stability Factor of Welded I-section Beams Under Pure Moment
Author(s):
GUO Yan-lin;  JIANG Zi-qin
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
Keywords:
pure moment;  welded I-section beam;  lateral stability factor;  initial geometric imperfection;  residual stress
PACS:
TU317
DOI:
-
Abstract:
Authors presented the study of lateral stability factor of the pure moment for the revision of current Code for Design of Steel Structures(GB 50017—2003). The calculation methods of the beam lateral stability factor in several countries' codes were introduced. Then, the differences of calculation results for the lateral stability capacities of welded I-section beams were compared according to several countries' codes. The numerical analysis by using shell element for the lateral stability of welded I-section beams under pure moment was carried out, in which both initial geometric imperfection and residual stress of the beams were considered. By comparing the normalized slenderness ratios and the beam lateral stability factor curves, it can be found that lateral stability coefficient from GB 50017—2003 is far higher than the finite element numerical analysis result. It will lead to unsafe design, so the revision to it should be done.

References:

[1] 陈绍蕃,顾 强.钢结构基础[M].2版.北京:中国建筑工业出版社,2007. CHEN Shao-fan,GU Qiang.Steel Structure Basis[M].2nd ed.Beijing:China Architecture & Building Press,2007.
[2]GB 50017—2003,钢结构设计规范[S]. GB 50017—2003,Code for Design of Steel Structures [S].
[3]AS 4100-1998,Steel Structures[S].
[4]DIN 18800-2-1990,Structural Steelwork-Analysis of Safety Against Buckling of Linear Members and Frames[S].
[5]陈绍蕃.受弯构件的整体稳定[J].钢结构,1992(3):33-45. CHEN Shao-fan.Beams' Lateral Stability[J].Steel Construction,1992(3):33-45.
[6]夏志斌,潘有昌,张显杰.焊接工字钢梁的非弹性侧扭屈曲[J].浙江大学学报,1985,19(增):93-105. XIA Zhi-bin,PAN You-chang,ZHANG Xian-jie.The Elastic Lateral Buckling of the Welded I-section Beams[J].Journal of Zhejiang University,1985,19(S):93-105.
[7]夏志斌.受弯钢构件整体稳定性的计算[J].钢结构,1991(1):34-41. XIA Zhi-bin.The Calculation Method of the Beams' Lateral Stability[J].Steel Construction,1991(1):34-41.
[8]夏志斌,姚 谏.钢结构原理与设计[M].北京:中国建筑工业出版社,2004. XIA Zhi-bin,YAO Jian.Steel Structure Principle and Design [M].Beijing:China Architecture & Building Press,2004.
[9]陈绍蕃.钢结构设计原理[M].北京:科学出版社,2005. CHEN Shao-fan.Design Principles of Steel Structure [M].Beijing:Science Press,2005.
[10]王国周.钢结构残余应力分布的若干特点[J].工业建筑,1981(8):31-35,20. WANG Guo-zhou.The Characteristics of the Residual Stress on Steel Structure [J].Industry Construction,1981(8):31-35,20.
[11]陈惠发.钢框架稳定设计[M].周绥平,译.上海:世界图书出版公司,1999. CHEN W F.Stability Design of Steel Frames[M].Translated by ZHOU Sui-ping.Shanghai:World Publishing Corporation,1999.
[12]王国周,瞿履谦.钢结构原理与设计[M].北京:清华大学出版社,2001. WANG Guo-zhou,QU Lu-qian.Steel Structure Principle and Design[M].Beijing:Tsinghua University Press,2001.

Memo

Memo:
-
Last Update: 2012-06-20