Seismic Performance of New Hybrid Ductile-rocking Braced Frame System
Bibliographic record
Abstract
A new hybrid ductile-rocking (HDR) seismic-resistant system is proposed which consists of a code-designed buckling-restrained braced frame (BRBF) that is free to rock on its foundation. The goal of this system is to reduce the disadvantages associated with BRBFs, such as excessive drift concentrations and residual deformations, while maintaining their reliable limit on forces and accelerations. A lockup device ensures the full code-compliant strength at a predetermined column uplift, and supplemental energy dissipation elements reduce the overall response. \nBuildings of 2, 4, and 6-storeys in height were designed for Los Angeles, California, and studies were performed to investigate how the energy dissipation strength, lockup base rotation, and vertical mass modelling choices affected the system's performance and dynamic response. An example detail was developed that included a cast steel energy dissipating device. These studies showed that the HDR system achieved a significant reduction in brace damage over conventional BRBF structures.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 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 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".