The impact of variability in rubber mechanical properties on the seismic response of scrap tire pad base isolation systems
Why this work is in the frame
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Bibliographic record
Abstract
Base isolation is a technique that involves decoupling a structure from the ground to deflect and dissipate seismic energy, thereby minimizing the transfer of harmful vibrations to the superstructure. However, its application in underdeveloped and developing countries has been limited due to its size, perceived implementation costs, and the lack of awareness and expertise in these regions. This study focuses on assessing how variations in mechanical properties impact the performance of low-cost scrap tire pad (STP) base isolation systems. Nine STP isolators with high variability were considered and experimentally tested to characterize their properties. They were then numerically employed in three types of buildings, two with square plans and one with a rectangular plan. For each building type, two scenarios were examined: using a uniform isolator type for all columns (Scenario 1) and employing a non-uniform isolator type for each column (Scenario 2), with nine cases for each scenario. The results show that, despite the high variability, the average maximum displacement, base shear, rotation, and acceleration of the two scenarios are approximately similar. Moreover, the increase in maximum displacement due to rotation in the isolation system utilizing non-uniform isolators remained below 10 % on average. Thus, although the variability of mechanical properties of the STP isolators impacts the performance of the considered isolation systems, it remained satisfactory compared to the uniform case.
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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 | 0.001 | 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 it