A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Filler Properties on the Axial Behaviour of Pultruded FRP Tubes
The low axial stiffness and high slenderness ratios of pultruded fibre reinforced polymer (PFRP) tubes make their axial behaviour is governed by the buckling issues. Increase the axial stiffness and support the PFRP walls against buckling can be obtained through filling with concrete. The improvement in the axial behaviour of PFRP tube-concrete columns depends on the properties of filler material and PFRP tubes.
In this study square and circular PFRP tubes were selected to investigate effects of cross-sectional shape on the improvement degree of the load capacity. The influences of fibre orientation and wall thickness were studied by considering two types for each PFRP tube sections. Two types of both normal concrete and lightweight perlite concrete were considered to fill PFRP tubes and to cover a range of variation in the filler modulus from 5 to 30 GPa. The length of PFRP columns was set to provide length -to lateral dimension ratio of 5. The results show that the stiffness of filled columns is increased as the modulus of concrete filler increases as well as, the load carrying capacity unless the transverse resistance of PFRP tube to the lateral dilation of the infilled concrete is low. Moreover, the post peak behaviour depends on the properties of filler and PFRP tubes. It is changed to be gradual reduction instead of sharp dropping of hollow PFRP columns. The findings would contribute to enhance the usage of PFRP tubes in application of civil engineering as it provides an approach to overcome the shortages that were controlled the axial behaviour of PFRP tube columns.
Influence of Filler Properties on the Axial Behaviour of Pultruded FRP Tubes
The low axial stiffness and high slenderness ratios of pultruded fibre reinforced polymer (PFRP) tubes make their axial behaviour is governed by the buckling issues. Increase the axial stiffness and support the PFRP walls against buckling can be obtained through filling with concrete. The improvement in the axial behaviour of PFRP tube-concrete columns depends on the properties of filler material and PFRP tubes.
In this study square and circular PFRP tubes were selected to investigate effects of cross-sectional shape on the improvement degree of the load capacity. The influences of fibre orientation and wall thickness were studied by considering two types for each PFRP tube sections. Two types of both normal concrete and lightweight perlite concrete were considered to fill PFRP tubes and to cover a range of variation in the filler modulus from 5 to 30 GPa. The length of PFRP columns was set to provide length -to lateral dimension ratio of 5. The results show that the stiffness of filled columns is increased as the modulus of concrete filler increases as well as, the load carrying capacity unless the transverse resistance of PFRP tube to the lateral dilation of the infilled concrete is low. Moreover, the post peak behaviour depends on the properties of filler and PFRP tubes. It is changed to be gradual reduction instead of sharp dropping of hollow PFRP columns. The findings would contribute to enhance the usage of PFRP tubes in application of civil engineering as it provides an approach to overcome the shortages that were controlled the axial behaviour of PFRP tube columns.
Influence of Filler Properties on the Axial Behaviour of Pultruded FRP Tubes
Lecture Notes in Civil Engineering
Ilki, Alper (editor) / Ispir, Medine (editor) / Inci, Pinar (editor) / Al-saadi, Ali Umran (author) / Aravinthan, Thiru (author) / Lokuge, Weena (author)
International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering ; 2021 ; Istanbul, Turkey
10th International Conference on FRP Composites in Civil Engineering ; Chapter: 43 ; 508-516
2021-11-27
9 pages
Article/Chapter (Book)
Electronic Resource
English
Experimental study on the axial crushing behaviour of pultruded composite tubes
| British Library Online Contents | 2010
Axial Compression Behaviour and Modelling of Pultruded Basalt-Fibre-Reinforced Polymer (BFRP) Tubes
| DOAJ | 2023
| Wiley | 2006
Response of pultruded composite tubes subjected to dynamic and impulsive axial loading
| British Library Online Contents | 2013
Pultruded Glass Fiber-reinforced Plastic and Paperboard Composite Tubes
| British Library Online Contents | 2006