Flexible Fiber Fabric for FRP–Concrete Connection of Thin Hybrid Slabs
| Autor: | Amir Reza Eskenati, Amir Mahboob, Lluís Gil, Ernest Bernat-Maso |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Anàlisi Estructural, Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria, Universitat Politècnica de Catalunya. LITEM - Laboratori per a la Innovació Tecnològica d'Estructures i Materials |
| Rok vydání: | 2021 |
| Předmět: |
Ultimate load
Carbon fiber-reinforced plastics Materials science Polymers and Plastics experimental Modal analysis Shear connection Organic chemistry Bending Construcció mixta Article bending test Experimental Cable gland QD241-441 Flexural strength Bending test shear connection Hybrid beams CFRP Ductility Plàstics reforçats amb fibra de carboni Formigó business.industry Composite construction General Chemistry Structural engineering Fibre-reinforced plastic Enginyeria dels materials::Materials compostos [Àrees temàtiques de la UPC] modal analysis hybrid beams concrete Formwork business Concrete Neutral axis |
| Zdroj: | Polymers Volume 13 Issue 17 UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Polymers, Vol 13, Iss 2862, p 2862 (2021) |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym13172862 |
| Popis: | In order to combat corrosion issues, several studies on progressively replacing steel reinforcement elements with composite ones have been conducted in recent years. Hybrid steel–concrete thin slabs in which the steel acts as formwork are also candidates for update in the coming years. Achieving a reliable connection between fiber-reinforced polymer (FRP) and cast-in-place concrete is key to promoting this technology. This study analyzed different connection systems and proposes the novel approach of embedding a flexible fiber fabric as a superficially distributed connector between concrete and FRP. Eight specimens with four different connection strategies were tested using an experimental modal analysis and a quasi-static three-point bending test. The impact of the connection system on the vibrational response, flexural ultimate load, moment response, neutral axis position, shear and dissipated energy was obtained and compared. The results show that the use of an embedded mesh increases the frictional mechanism and produces the best performance in terms of load-bearing capacity and ductility. |
| Databáze: | OpenAIRE |
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