Flexural moduli and end connection stiffnesses of symmetrically loaded GFRP beams for limit state serviceability design analysis

Turvey, G.J. and Zhang, Y-S. (2018) Flexural moduli and end connection stiffnesses of symmetrically loaded GFRP beams for limit state serviceability design analysis. Composite Structures, 202. pp. 1164-1175. ISSN 0263-8223

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Abstract

An alternative analysis utilizing deflection, strain and curvature data from simply supported single-span three- and four-point bending tests is presented for determining the flexural modulus of a beam. The analysis is extended to beams with bolted end connections to determine their rotational stiffnesses. Analyses of tests on symmetrically loaded pultruded GFRP wide flange (WF) beams with bolted end connections formed from GFRP equal leg angles are shown to produce consistent and repeatable connection stiffnesses. The semi-rigid beam analysis is recast to quantify the reduction in serviceability limit loads with increasing beam slenderness. Deflection and load performance indices for symmetric four-point loading are derived and evaluated using the connection stiffness data. For each type of end connection, the reductions in mid-span deflection and increases in load, relative to simply supported end conditions, are quantified for a range of load spacing ratios.

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, 202, 2018 DOI: 10.1016/j.compstruct.2018.05.081
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2503
Subjects:
ID Code:
125338
Deposited By:
Deposited On:
21 May 2018 08:56
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 04:49