A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Failure modes in filled hole GFRP laminates for connections between FRP and concrete
The PERFOFRP connector consists on a perforated glass fibre reinforce polymer (GFRP) rib that is specially designed to perform the connection between thin concrete layers, which can be also useful in the context of structural rehabilitation. It stays embedded in the concrete layers, avoiding the use of complementary connecting techniques, like special gluing or bolting. This type of connection is similar to the Perfobond steel connectors proposed for steel and concrete composites structures. Perfobond shear connector failure depends on the concrete dowels load capacity, since the steel connector failure does not occur in ribs with adequate thickness. However, in the case of the PERFOFRP connectors, the load capacity can be limited by the failure of the connector itself. To achieve a better understanding on the behaviour of the GFRP connector, an experimental study, based on tests with perforated GFRP laminates submitted to pin-bearing tests, is carried out. The tests are performed with four different rectangular GFRP plates containing a circular hole of 30 mm diameter, and differing from each other in terms of stacking and amount of fibre plies. Two different geometries of specimens are studied to enhance the evaluation of two expected failure modes. Finally, the failure modes, the peak loads and the evolution of strain in the vicinity of the holes are presented and discussed. ; QREN-ADI, Fundação para a Ciência e a Tecnologia (FCT)
Failure modes in filled hole GFRP laminates for connections between FRP and concrete
The PERFOFRP connector consists on a perforated glass fibre reinforce polymer (GFRP) rib that is specially designed to perform the connection between thin concrete layers, which can be also useful in the context of structural rehabilitation. It stays embedded in the concrete layers, avoiding the use of complementary connecting techniques, like special gluing or bolting. This type of connection is similar to the Perfobond steel connectors proposed for steel and concrete composites structures. Perfobond shear connector failure depends on the concrete dowels load capacity, since the steel connector failure does not occur in ribs with adequate thickness. However, in the case of the PERFOFRP connectors, the load capacity can be limited by the failure of the connector itself. To achieve a better understanding on the behaviour of the GFRP connector, an experimental study, based on tests with perforated GFRP laminates submitted to pin-bearing tests, is carried out. The tests are performed with four different rectangular GFRP plates containing a circular hole of 30 mm diameter, and differing from each other in terms of stacking and amount of fibre plies. Two different geometries of specimens are studied to enhance the evaluation of two expected failure modes. Finally, the failure modes, the peak loads and the evolution of strain in the vicinity of the holes are presented and discussed. ; QREN-ADI, Fundação para a Ciência e a Tecnologia (FCT)
Failure modes in filled hole GFRP laminates for connections between FRP and concrete
Lameiras, Rodrigo Melo (author) / Gonçalves, Cláudia Sofia Costa (author) / Valente, Isabel (author) / Barros, Joaquim A. O. (author) / Azenha, Miguel (author)
2013-06-26
Conference paper
Electronic Resource
English
GFRP , Laminate , Limit design
DDC:
690
Acoustic Emission Characterization of Failure Modes in GFRP Laminates Under Mode I Delamination
| British Library Online Contents | 2011
Fatigue Damage Development of Open-Hole Ti/GFRP Laminates
| British Library Conference Proceedings | 2007
Three-Dimensional Stress Analysis and Failure Prediction in Filled Hole Laminates
| British Library Conference Proceedings | 2001
Quantitative Acoustic Emission for Fracture Behavior of Center-Hole GFRP Laminates
| British Library Online Contents | 1994
Composite Action of Concrete-Filled Rectangular GFRP Tubes
| British Library Online Contents | 2013