Member Capacity of Pultruded GFRP Tubular Profile with Bolted Sleeve Joints for Assembly of Latticed Structures
Publication: Journal of Composites for Construction
Volume 20, Issue 3
Abstract
The use of bolted sleeve joints has been proposed for assembling pultruded glass fiber-reinforced polymer (GFRP) tubular profiles into space lattice shell structures. Such joint configurations may introduce a semi-rigid end condition and further affect the capacity of the connecting members in compression. Three batches of specimens assembled with pultruded GFRP profiles of different lengths and bolted sleeve joints at both ends were prepared and tested under static axial compression. A detailed three-dimensional finite element model considering bolt geometry, contact behavior, bolt pretension, initial geometric imperfection, and failure criterion for fiber-reinforced polymer (FRP) composites was developed and validated with experimental results showing good comparisons. It was found that the bolted sleeve joints exhibited semi-rigid behavior and that the failure modes and the effective length factor were dependent on member slenderness. The relationship between effective length factor and member slenderness was derived based on finite element analysis and then used in conjunction with existing FRP column design equations to predict the member capacity for structural members with bolted sleeve joint end conditions.
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Acknowledgments
The authors gratefully acknowledge the financial support provided by the Australian Research Council (ARC) Discovery Early Career Research Award (DECRA) and Monash University and the technical support from Mr. Long Goh and Mr. Mark Taylor (Civil Engineering Laboratory of Monash University).
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Published In
Journal of Composites for Construction
Volume 20 • Issue 3 • June 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: May 30, 2015
Accepted: Sep 17, 2015
Published online: Dec 14, 2015
Discussion open until: May 14, 2016
Published in print: Jun 1, 2016
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