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Axial behavior of concrete‐filled carbon fiber‐reinforced polymer composite columns
Author(s) -
Kim Heecheul,
Lee Kyoung Hun,
Lee Young Hak,
Lee Junbok
Publication year - 2012
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.585
Subject(s) - materials science , composite number , composite material , transverse plane , ductility (earth science) , tube (container) , structural engineering , carbon fiber reinforced polymer , strain gauge , polymer , stress (linguistics) , creep , engineering , philosophy , linguistics
Concrete‐filled carbon fibre‐reinforced polymer (CFRP) composite columns without longitudinal and transverse reinforcing steels were tested to perform both experimental and analytical investigations of the axial behaviour of circular columns confined with CFRP composite tubes. The tubes were manufactured by wrapping the CFRP sheets with 90° + 90°, 90° ± 75°, 90° ± 60°, 90° ± 45°, 90° ± 30° wrapping angles with respect to longitudinal axis of the tube. Monotonic axial loads were applied to the gauge‐instrumented concrete‐filled CFRP tubes. The effects of fibre‐wrapping angle, thickness of tube, as well as transverse dilation on stress–strain relationships of the confined columns, were identified and discussed. Proposed models to predict both the strength and the ductility of columns confined with CFRP composite tubes show good agreement with the test results. Copyright © 2009 John Wiley & Sons, Ltd.