Shake Table Tests on FRP-Rehabilitated RC Shear Walls
Bibliographic record
Abstract
This paper investigates the behavior of two 8-story cantilevered RC shear walls rehabilitated using carbon fiber-reinforced polymer (CFRP) composite sheets when subjected to base excitations from a shake table. The two original reduced size walls (1:0.429) were tested on the shake table of École Polytechnique de Montréal to investigate the effect of higher modes of vibration on the behavior of multistory RC walls. The walls were subjected to several levels of ground motion excitation that matches the design spectrum of Montréal city in Québec, Canada. The original walls showed significant inelastic deformations at the 6th-story level in addition to those at the base plastic hinge. After the shake table tests on each of the two original walls, the damaged walls were rehabilitated and resubjected to the same levels of the ground motion excitations. This paper focuses on the FRP-rehabilitation of the original walls. The rehabilitation scheme for the two walls aimed to increase the flexural and shear capacities of the wall at the 6th-story panel because of the observed increase in demand at that level, whereas the base panel was confined using CFRP sheets to increase the ductility capacity without increasing strength. The rehabilitated walls showed satisfactory performance with improved flexural strength at the 6th-story panel. The rehabilitation scheme resulted in a reduced wall rotation and lower strain values of the flexural steel rebars at the 6th-story panel. The shear demands and bending moments on the FRP-rehabilitated walls were higher than those of the original ones.
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 | 0.001 |
| 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".