Design Equations for Flexural Capacity of Concrete Beams Reinforced with Glass Fiber–Reinforced Polymer Bars
| Autor: | Qiaowen Zheng, Fei Peng, Weichen Xue |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Concrete beams
Materials science business.industry Flexural modulus Three point flexural test Mechanical Engineering 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Fibre-reinforced plastic Upper and lower bounds 0201 civil engineering Flexural strength Mechanics of Materials 021105 building & construction Ceramics and Composites Composite material business Reinforcement Failure mode and effects analysis Civil and Structural Engineering |
| Zdroj: | Journal of Composites for Construction. 20 |
| ISSN: | 1943-5614 1090-0268 |
| Popis: | The flexural failure mode of concrete beams reinforced with glass fiber-reinforced polymer (GFRP) bars changes from GFRP rupture to concrete crushing as the reinforcement ratio increases. Due to the uncertainties of material strengths, assumptions made in analysis, and variations in locations of reinforcements and dimensions of sections, there is a transition region where both flexural failure modes are possible. An iterative procedure is required when GFRP rupture governs the design. To avoid this iteration, the current American standard adopts a simplified but conservative procedure. In this study, the upper bound of the reinforcement ratio for beams in the transition region is revised. Moreover, a simplified yet rational design equation for calculating the flexural capacity of under-reinforced beams is proposed based on rigorous sectional analyses. Also, alternative design equations based on regression analyses are developed to predict the flexural capacity of beams in the transition region and... |
| Databáze: | OpenAIRE |
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