Feasibility of using replaceable steel coupling beams in composite plate shear walls/concrete filled
Bibliographic record
Abstract
Composite plate shear walls/concrete filled (C-PSWs/CF) are new lateral force-resisting systems for tall buildings. In the event of a moderate or severe earthquake, coupled composite plate shear walls/concrete filled (CC-PSWs/CF) sustain damage in their composite coupling beams. The damage spread over the height of tall buildings can be challenging to repair without building closure, business disruption, and downtime. This paper explores the feasibility of using replaceable steel coupling beams in CC-PSWs/CF to improve their post-earthquake repairability and thus minimize economic losses. Detailed finite element models are developed and validated for CC-PSWs/CF. A design methodology is also presented and validated for CC-PSWs/CF with replaceable steel coupling beams. The lateral response of five archetype walls of 4–16 stories with the proposed replaceable steel coupling beams is assessed using modal, equivalent lateral force (ELF), pushover, and cyclic analyses in ABAQUS. Nonlinear response-history analyses are also performed in OpenSees. The results demonstrate the feasibility of using replacing steel coupling beams in CC-PSWs/CF. Damage is limited to steel shear links. The adequacy of the proposed design is also confirmed.
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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 | 0.000 |
| 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 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".