Performance-based blast resistant design of reinforced concrete frame structures under distant explosions
Why this work is in the frame
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Bibliographic record
Abstract
Limited research has been carried out upon the dynamic responses for multi-storey reinforced concrete frame structures subjected to blast loadings from distant intense surface explosions. This chapter presents numerical analysis with the program ABAQUS on a six-storey reinforced concrete frame structure under two blast conditions occurring at a standoff distance of 100 m produced by the explosives respectively equivalent to a 50 ton TNT and 250 ton TNT. To incorporate the effects of exterior cladding panels, two cases are involved in the analysis for the six-storey frame structure with/without exterior cladding panels. The finite element models involved are verified by comparing the numerical results of a reinforced concrete beam and slab for blast loadings with the experimental data. The results indicate that the whole dynamic response process of the frame structure with/without exterior cladding panels can be approximately divided into two stages. The localized responses of the blast-loaded members are critical at response stage I while with the increase in time, the structural global response becomes dominant at response stage II. Flexural responses are more important in the plastic deformation of the structural members as compared to the corresponding shear responses. Due to the variation of the blast forces received, the dynamic responses are much more severe for the frame structure with exterior cladding panels than the one without exterior wall panels under the same blast condition.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 | 0.001 |
| 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 it