Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 39, Issue 2, Pages 388-397Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2007.10.009
Keywords
fatigue; analytical modeling; mechanical testing; joints/joining
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This paper summarizes the development and use of high modulus carbon fiber reinforced polymer (HM CFRP) materials for the retrofit of steel structures and bridges. The development work included selection of an appropriate adhesive for bonding HM CFRP materials to steel and the performance of large-scale steel-concrete composite beams tested to examine the behavior using different strengthening schemes. The experimental program investigated the behavior of the strengthening system under fatigue and overloading conditions. A detailed study of bond behavior, including the possible presence of shear-lag effects and performance of spliced joints is also presented. Based on the findings, flexural design guidelines are proposed. The study indicates that CFRP materials can be effectively used to enhance the serviceability and ultimate strength of steel flexural members. (c) 2007 Elsevier Ltd. All rights reserved.
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