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Fiber-Reinforced Plastic-Confined Wood Profiles Under Axial Compression

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The objective of this research was to provide engineered wood products based on formed wood profiles for structural applications. The formed profiles can be optionally reinforced with technical fibers and/or textiles laminated onto the outer wood surface. The purpose of such composite confinement is to strengthen the wood profile in circumferential direction and to protect wood against environmentally induced damage. The presented research work deals with the analysis and testing of wooden tubes reinforced with fiber-reinforced plastic (FRP) composites. Axial compression tests were conducted to analyze the load-carrying behavior of timber columns with circular hollow cross sections. Static tests showed that the tubes were capable of sustaining high buckling loads as long as brittle failure modes could be prevented. Brittle failure was observed for unreinforced columns, whose longitudinal splitting was due to the expansion of the tubes in circumferential direction, resulting in tension perpendicular to the grain failure. The tests of reinforced tubes demonstrated that load-carrying capacity and ductility can be significantly enhanced by the composite confinement. Standard design equations were applied to estimate the load-carrying capacity of the composite tubes. The results obtained from experiments were used to verify the analysis.


Document Type: Research Article


Publication date: 2010-08-01

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    Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.

    SEI is printed in Switzerland; ISSN 1016-8664; E-ISSN 1683-0350
    Abstracted and indexed at: Web of ScienceSM; Science Citation Index Expanded (SciSearch); Journal Citation Reports/Science Edition; Current ContentsR/Engineering, Computing and Technology; CAB Abstracts database; INSPEC, CBA and others.

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