Seismic Performance Assessment of the Historical Reggio Calabria Cathedral
Bibliographic record
Abstract
Background: Italy's church buildings' cultural and architectural significance cannot be overstated. Objective: This paper addresses the seismic vulnerability of the cathedral located in Reggio Calabria, Italy. The analysis of this building is interesting as it was retrofitted after the destructive 1908 Messina-Reggio Calabria earthquake. Methods: The original design illustrating the static schemes and the considered actions of the church are described. Structural drawings of that time are also reported, which proved to be fundamental for the numerical modelling of the building. The issues and assumptions made during the modelling phase of the structure with the seismic actions are also illustrated. All the transverse and longitudinal frames were analysed using nonlinear analysis to evaluate the seismic capacity and vulnerability indicators in terms of accelerations and periods. Results: The results provided by the modal analysis are presented and discussed to highlight the global dynamic behaviour of the church. Conclusion: The seismic vulnerability indicators have been calculated by considering the seismic actions recommended by the current technical standards and concerning the 1975 Messina earthquake, which represents the most severe earthquake experienced by the church.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".