Non-linear analysis of concrete structures: a practical design approach to Eurocode
Why this work is in the frame
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Bibliographic record
Abstract
Reinforced concrete is an inherently non-linear material with non-linear compressive behaviour, concrete cracking and reinforcement yielding altering the stiffness and causing redistribution of forces within statically indeterminate structures. A practical design approach is described that has been developed to ensure robust computation of serviceability limit state and ultimate limit state demand in line with Eurocode BS EN 1992, including explicit modelling of material and geometric non-linearities and construction imperfections. The approach uses the MAT_CONCRETE_EC2 material model within the LS-DYNA finite-element analysis package and has been extensively used during the detailed engineering design of the concrete gravity substructure for the White Rose Extension Project off the coast of Newfoundland, Canada. The material model and validation of its behaviour in accordance with the Eurocode standard are described, along with other typical engineering applications where the approach may be of benefit. Specific benefits and implementation challenges encountered during the design process are also highlighted with a non-linear buckling assessment case study.
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Full frame distilled prediction
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 | 0.001 |
| 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)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it