Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 17, Issue 6-7, Pages 507-516Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0950-0618(03)00048-5
Keywords
fibre reinforced polymer; tubes; concrete-filled; confinement; beam; column
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Concrete-filled fiber reinforced polymer (FRP) circular tubes provide an effective structural system for a variety of applications such as piles, columns, overhead sign structures and utility poles. This paper discusses the behavior of concrete-filled Glass-FRP tubes ranging in diameter from 90 to 942 mm, using test results of eight beams, five columns and ten beam-column specimens. The effects of concrete fill, laminate structure of the tube, reinforcement ratio based on the wall thickness;, as well as different failure modes are examined. Analytical models have been established and used in a parametric study to examine the effects of fiber orientation within the FRP tubes, thickness of the FRP tube, and the diameter of a central hole, which could be used to reduce the self-weight of the member. The benefits of concrete fill as well as the confinement effects have been demonstrated experimentally and analytically. (C) 2003 Elsevier Ltd. All rights reserved.
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