Stress Analyses of Deep Plate Girders Used at Oil and Gas Facilities with Rectangular Web Penetrations
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Rectangular openings in structural members are used to allow the passage of services. Special design considerations are required to compensate for the reduction in stiffness and to minimize fatigue cracks in the web. The paper investigates the behavior of deep plate girders with rectangular openings with applications to oil and gas facilities. An efficient numerical procedure is first presented for analysis of webs with rectangular penetrations. The limitations of the current AISC guidelines and Canadian design procedures are also highlighted. Recommendations are proposed for structural engineers to minimize web stresses in the girder. The influence of these penetrations on the performance of the plate girder is also illustrated for several loading conditions. It is shown that for openings with aspect ratios (α/β)>1, the stress decreases as the opening radius of curvature (r) increases. Also, the location of the maximum stress is largely influenced by the opening aspect ratio (α/β). It is also shown that a slow increase in the web maximum stress results when the opening curvature (r)<40 mm. For plate girders under shear loading, the web stress decreases by increasing the opening curvature (r).
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.
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 | 0.000 |
| 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