Use of CFRP to Maintain Composite Action for Continuous Steel–Concrete Composite Girders
| Autor: | Abul K. Azad, Mohammed H. Baluch, Alfarabi M. Sharif, Mohammad A. Samaaneh |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Composite number Stiffness 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Fibre-reinforced plastic Finite element method 0201 civil engineering Moment (mathematics) Cracking 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Girder Ceramics and Composites Slab medicine Composite material medicine.symptom business Civil and Structural Engineering |
| Zdroj: | Journal of Composites for Construction. 20 |
| ISSN: | 1943-5614 1090-0268 |
| DOI: | 10.1061/(asce)cc.1943-5614.0000645 |
| Popis: | The loss of composite action at the negative moment region for a continuous composite girder reduces the girder’s strength and stiffness. This paper presents an experimental investigation into the use of carbon fiber–reinforced polymer (CFRP) to maintain the composite action at the negative moment region of continuous composite girders. This is achieved by bonding CFRP sheets to the top of a concrete slab at the negative moment region. Six two-span continuous composite girders were tested. CFRP sheet thickness was varied to assess its effect on girder behavior. The girders were designed to have full composite action between the concrete slab and the steel girder. Moment capacity at the positive and negative moment regions was evaluated experimentally and theoretically. A plastic analysis was conducted to evaluate the ultimate capacity of the girders. Finite-element modeling evaluated girder performance numerically. The experimental results confirmed the effectiveness of CFRP sheets in maintaining ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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