Two-bay pultruded GFRP safety Barrier/Guardrail – Testing, analysis and compliance with standards

Turvey, G.J. and Milburn, J. (2020) Two-bay pultruded GFRP safety Barrier/Guardrail – Testing, analysis and compliance with standards. Composite Structures, 253. ISSN 0263-8223

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Abstract

The paper describes a series of material/structural property tests on pultruded GFRP (glass fibre reinforced polymer) circular cross-section tubes used in guardrails. The tests enabled the elastic flexural and shear moduli of the tubes and the rotational stiffness of the post-base connections to be quantified. This information was then used to set up ANSYS FE (finite element) models of the guardrails using cubic beam elements and revolute joints to simulate the out-of-plane deflections of a two-bay plane guardrail loaded at the top of the centre-post and the mid-bays of the handrail. Load tests were carried on a full-scale guardrail in order to demonstrate that it complied with the load and deflection requirements given in the most recent design standard for guardrails. Thereafter, the ANSYS FE model deflection predictions were compared with those recorded during the load tests on the guardrail. It was shown, that including revolute joints in the model gave deflections that were, in the worst instances, within 15% of the values recorded in the physical tests.

Item Type:
Journal Article
Journal or Publication Title:
Composite Structures
Additional Information:
This is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 253, 2020 DOI: 10.1016/j.compstruct.2020.112745
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2503
Subjects:
ID Code:
148461
Deposited By:
Deposited On:
23 Oct 2020 10:45
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Nov 2020 14:51