Lateral-Torsional Buckling of European Wide Flange I-Section Beams
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Bibliographic record
Abstract
Lateral torsional buckling is one of the main failure modes in which the beam experiences non-uniform twisting and buckling about its weak axis. This study intends to describe lateral-torsional buckling behavior of European wide flange I-section beams. An analytical model based on Ritz method is established for doubly-symmeric I section by considering load position. A compact closed form equation which can be used for calculation critical elastic lateral-torsional buckling load of Europen wide flange I-section (HEA, HEB, HEM profiles) is developed using analytical solutions and dimensionless buckling parameters. The effects of slenderness and loading positions on lateral-torsional buckling behavior of beams with wide flange are investigated. The present solutions are validated with 1D finite element solutions in which beams are modeled with their exact geometries. Good agreement between the analytical and numerical solutions is demonstrated. It is concluded that the lateral-torsional buckling load of European HEA, HEB and HEM beams can be determined by presented method and can be safely used in design procedures.
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Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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