Abstract
This paper presents an analytical solution for lateral-torsional buckling strength and stiffness requirements of I-girders with discrete torsional bracings subjected to non-uniform bending. The critical moment and torsional stiffness requirement are derived by using an energy method for an arbitrary number of bracing points. An equivalent moment factor is introduced to evaluate buckling moments of fully braced I-girders. From the results, it is found that proposed solutions agree well with results of finite element analyses regardless of the number of bracing points, while results for the equivalent continuous brace stiffness concept are not suitable for multiple discrete torsionally-braced beams.
| Original language | English |
|---|---|
| Pages (from-to) | 264-271 |
| Number of pages | 8 |
| Journal | Procedia Engineering |
| Volume | 14 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 12th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC12 - Hong Kong, Hong Kong Duration: 2011 Jan 26 → 2011 Jan 28 |
Keywords
- Energy method
- Lateral-torsional buckling
- Stiffness requirement
- Torsional bracing
ASJC Scopus subject areas
- Engineering(all)
Fingerprint Dive into the research topics of 'Lateral-torsional buckling of discretely-braced I-girder'. Together they form a unique fingerprint.
Cite this
Lee, H. E., Nguyen, C. T., Moon, J. H., & Joo, H. S. (2011). Lateral-torsional buckling of discretely-braced I-girder. Procedia Engineering, 14, 264-271. https://doi.org/10.1016/j.proeng.2011.07.032