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Title: Fatigue repair of steel hydraulic structures (SHS) using CFRP : feasibility study
Authors: Monitoring Completed Navigation Projects Program (U.S.)
Mahmoud, Hussam.
Riveros, Guillermo A.
Keywords: Carbon fiber
Reinforced polymer
Hydraulic structures
Publisher: Information Technology Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/ITL TR ; 13-1.
Description: Technical Report
Abstract: The nation’s Steel Hydraulic Structures (SHS) are suffering from significant deterioration due to various effects including corrosion, fatigue cracking, impact, and overloads. Current conventional methods used for the repair of steel bridges are accepted as the state-of-practice for the repair of SHS; however, the application of such methods to SHS has often proven to be ineffective as a result of the excessive deterioration present in the structures. Furthermore, the bridge-based crack repair methods were developed primarily for mitigating cracks under Mode I loading, while SHS often experience a combination of various loading modes. Therefore, the need for developing repair methodologies that are pertinent to SHS is ever-pressing. If properly applied, the use of Carbon Fiber Reinforced Polymer (CFRP) composites for the repair of fatigue cracks can result in a significant increase in fatigue life. This report aims at conducting a feasibility study on the use of CFRP patches for the repair of SHS. This is realized through evaluating current experimental and analytical studies as well as state-of-practice on the use of CFRP for the fatigue repair of steel structures. In addition, the applicability of the use of CFRP to SHS will be discussed and gaps in the literature will be identified.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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