Seismic Response of the ACR(TM) Reactor Building
Bibliographic record
Abstract
The Advanced CANDU Reactor or the ACR is developed by Atomic Energy of Canada Limited (AECL) to be the next step in the evolution of the CANDU product line.It is based on the proven CANDU technology and incorporates advanced design technologies.Two standard designs of the ACR are developed: ACR-1000 and ACR-700.The ACR is designed to incorporate the latest advances in design and construction techniques and to be cost competitive while achieving higher safety and performance standards.This paper describes the methodology of the seismic qualification of the ACR reactor buildings.The ACR standard plant is conservatively qualified for a design basis earthquake with peak horizontal ground acceleration of 0.3g and for a wide range of soil/rock foundation conditions.The input design ground response spectra address current technical issues such as earthquake input motions with high frequency content and near field effects.The structural behavior of the ACR-700 reactor building under the design earthquake is determined using two dynamic models.The dynamic characterizes of the reactor building are established using a stick model and a three-dimensional finite element model.In developing the dynamic models, considerations are given to the details of both the containment and internal structures, and to location and weight of major equipment and systems.The soil-structure-interaction effects are considered in the seismic analysis.The structural responses of the reactor building due to the design basis earthquake are determined and are used for the assessment of the reactor building stability.The seismic responses of the reactor building include displacement and acceleration responses and base shear and overturning moments.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.001 | 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".