Static and Fatigue Behaviour of Hybrid FRP-Concrete Bridge Truss Girder with Connections Reinforced with Double-Headed Bars
Bibliographic record
Abstract
An innovative hybrid FRP-concrete bridge system for short- and medium-span bridges has been developed at the University of Calgary. This system is composed of concrete deck slabs composite with precast prestressed concrete truss girders, consisting of pre-tensioned top and bottom chords connected by vertical and diagonal truss members made of concrete-filled fiber-reinforced polymer tubes. The advantages of this system include reduced self-weight and enhanced durability. The objective of this research is to investigate the performance of the truss girder under static and fatigue loading. An experimental program including fabrication of ten full-scale truss girders with the number of panels varying from two to eight is presented. The effect of several parameters, such as the span-to-depth ratio and the amplitude of fatigue loading on the performance of the truss girder are investigated. The tests showed excellent performance of the girder system in terms of strength and stiffness.
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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 | 0.000 |
| 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) | 0.001 | 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 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".