Volume 10, Issue 2 (4-2020)                   2020, 10(2): 217-229 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Morkhade S G, Kumthekar F P, Nayak C B. ANALYTICAL STUDY OF STEEL I-BEAM WITH STEPPED FLANGES. International Journal of Optimization in Civil Engineering 2020; 10 (2) :217-229
URL: http://ijoce.iust.ac.ir/article-1-431-en.html
Abstract:   (9709 Views)
This paper presents a parametric study of steel I- beam with stepped flanges by using finite element analysis. Stepped flange beam is used in structures to decrease the negative bending moments near interior supports that causes failure due to buckling. Steps in the cross section can be achieved by adding cover plates to the beam flanges, changing the size of the hot rolled section, or changing the flange thickness and/or width for built-up section. The stress concentration with variation in stepped beam configuration such as doubly and singly stepped I-beams has been examined thoroughly. The loadings are limited to those having an inflection point of zero under point load at mid span. Beams with degree of symmetry, ρ of 0.2 are investigated for the present study. Unbraced length to height ratio of the beam to be analyzed is considered as 15. In addition, to check the effect of steps, stepped parameters α, β and γ are varied. The results shows that, a change of flange thickness is more significant than a change of flange width on the lateral torsional buckling capacity of a singly stepped beam.
Full-Text [PDF 594 kb]   (3913 Downloads)    
Type of Study: Research | Subject: Applications
Received: 2020/03/18 | Accepted: 2020/03/18 | Published: 2020/03/18

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Iran University of Science & Technology

Designed & Developed by : Yektaweb