Finite Element Study of HSS-to-HSS Moment Connection with Eccentricity: Flexural Behavior under Cyclic Loading
Bibliographic record
Abstract
Hollow structural sections (HSS) are suitable for various structural applications, such as columns, bracing members, cladding supports, and truss members.Recently, HSS members have been researched as one type of moment resisting frame systems for structures.Several studies have been conducted on the behaviors of HSS-to-HSS concentric moment connections subjected to cyclic loading, however, studies on the cyclic bending behaviors of eccentric connections are very limited.This paper aims to investigate the effects of the connection eccentricity on the load capacity of the HSS-to-HSS moment connection subjected to cyclic loading by using finite element (FE) simulations.Two connection configurations were examined with different beam width-to-column width ratios (β); both unreinforced and reinforced connections were examined for each configuration.The results from this study showed that the moment capacity of an unreinforced HSS-to-HSS moment connection increases as the connection eccentricity increases, whereas the connection eccentricity has minimal effects on the moment capacity of a reinforced HSS-to-HSS moment connection.Also, with the same connection eccentricity, the connection with a higher beam width-to-column width ratio (β) demonstrates a higher moment capacity for both unreinforced and reinforced moment connections.
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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 | 0.000 |
| 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 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".