Cast Steel Replaceable Modular Links for Eccentrically Braced Frames
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This paper presents an investigation into the use of cast steel replaceable links for eccentrically braced frames (EBFs). While conventional EBFs can be designed with a large response modification factor, and are thus very economical seismic-force-resisting systems (SFRS) in high-seismic regions, they can also be prone to damage states such as fracture at stiffener welds, local buckling, and lateral torsional buckling. They are also difficult to repair after an earthquake event since the EBF links are integrated into the floor beam of the seismic force-resisting frame. It is proposed that these drawbacks of conventional EBFs could be mitigated by using replaceable cast steel yielding links, since demand critical welds are avoided and damaged links can be replaced after an earthquake. Additionally, the cast steel EBF links are uncoupled from the beam sections and thus the most economical beam and link can both be specified. This paper presents sample building designs for a variety of building locations, using a newly developed cast steel EBF link concept that can be used to achieve more economical designs while also improving the performance of EBF frames.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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