Axial Strength Of Lightweight Self-Consolidating Concrete Columns With Engineered Cementitious Composite
Bibliographic record
Abstract
Axial load behavior of confined columns with engineered cementitious composite (ECC) wrapping was investigated through experimental, analytical and finite element (FE) investigations. The variables in the study were: geometry (cylindrical and rectangular), presence or absence of longitudinal and tie reinforcement, ECC wrap thickness, types of concrete core (lightweight and normal weight self-consolidating concrete) and type of loading (applied through both core and wrap or core only). The effect of these variables on axial load-deformation response, strain characteristics, failure modes, ductility, energy absorption capacity and axial strength were evaluated. The confined concrete strengths predicted from existing analytical and developed FE models were found to be in good agreement with those of experiments. The axial load capacity and ductility were increased for columns with highest ECC wrap thickness (50 mm) while thinner wrap increased stiffness instead of ductility. Canadian code conservatively predicted axial strength of columns having increased thickness of ECC wrap.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".