Behavior of Shear Tab Connections under Column Removal Scenario
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Bibliographic record
Abstract
Shear connections in beams are conventionally designed to transfer shear forces only. It is assumed that there is no substantial moment transfer due to the fact that beam end rotation is allowable. The shear tab, or fin plate, connection is one of the simplest and most cost-effective shear connection types and, although its behavior under gravity and cyclic loading has been established, its response to the column removal scenario that is commonly considered for progressive collapse analysis is still relatively unknown. In this paper, challenges involved in numerical studies for simulating the performance of shear tab connections when a column has been compromised are discussed. Modeling definitions for performing highly nonlinear analysis are discussed and recommendations are made regarding obtaining verification by available experimental data. Shear, axial force, and moment versus chord rotation diagrams are presented for both numerical and experimental results and conclusion are made.
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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 | 0.000 |
| 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) | 0.004 | 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