CHARACTERIZING THE FIRE PERFORMANCE OF ADHESIVES USED IN GLUED-IN RODS CONNECTIONS
Bibliographic record
Abstract
Glued-in rods are an aesthetically and performant type of connection that has seen its usage increase in the last few years. However, there is still a lack of data concerning the fire performance of glued-in rods, limiting its integration in standards. Recent studies suggest that the adhesive is critical to the fire performance of glued-in rods, since its capacity is greatly reduced when the temperature exceeds its glass transition temperature (Tg), ranging between 45-65 o C for most structural adhesives. To validate these findings, dynamic mechanical analysis (DMA) tests were performed to better assess the Tg and other thermomechanical properties of the adhesives used in this research. Axial tension tests at stabilized temperature were performed on 67 glued-in rods specimens using five different adhesives (three epoxies and two polyurethanes) and various sets of temperatures at the glue line interface. Most of these specimens have shown a ductile failure mode for temperatures below the Tg of the adhesive and a brittle failure mode for temperatures above the Tg. This research helps determine guidelines for the fire design of glued-in rods and related testing, and ultimately leading to a design method for providing fire resistance to connections made of glued-in rods.
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How this classification was reachedexpand
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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".