Analysis of Lateral Torsional Buckling of Steel I-Beams within Preflexed Beams in Pre-Bending Stage
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Lin-jie Tian
(School of civil engineering and architecture, Henan University, Kaifeng 475004, China School of Transportation, Southeast University, Nanjing 211189, China)
Ming Yang (School of Transportation, Southeast University, Nanjing 211189, China) Zhe Li (Tongji Architectural Design(Group) Co., Ltd, Shanghai 200092, China) |
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
|
|||||
| Page(s): | 1887-1895 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/nanjing.2022.1887 | ||||
| Abstract: |
In order to study the lateral torsional buckling (LTB) law of steel I-beams within preflexed beams in pre-bending stage, the traditional Rayleigh Ritz method was applied, and the modified Rayleigh Ritz method was proposed by considering the restraint effects caused by lateral braces. A large number of finite element models were established by ABAQUS. The theoretical and simulation results show that the modified Rayleigh Ritz method proposed in this paper can reduce the maximum relative error of traditional Rayleigh Ritz method by about 13%. The effects of different parameters on the LTB of steel I-beams were obtained through parameter analysis. The study in this paper can provide reference value for the analysis of LTB of steel I- beams and the parameter selection of preflexed beams in pre-bending stage. |
||||
| Keywords: |
lateral torsional buckling steel I-beam lateral brace modified Rayleigh-Ritz method
|
||||
| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
||||