Nonprestressed and Prestressed FRP Sheets as External Reinforcement of Wood Members

by Thanasis C. Triantafillou, Mass Inst of Tech, Cambridge, United States,
Nikolaos Plevris, Mass Inst of Tech, Cambridge, United States,
Nikola Deskovic, Mass Inst of Tech, Cambridge, United States,

Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures


The paper presents a summary of an analytical and experimental investigation of a new form of wood construction involving external bonding of thin fiber reinforced plastic (FRP) sheets on the tension zones of wood elements using epoxy resins. First, the effect of external composite reinforcement on the strength, the stiffness and the curvature ductility of hybrid FRP-wood members under a combination of bending moments and axial forces is examined. Then, the method of reinforcing wood with composite sheets is extended by prestressing the FRP before applying them on the wood surface, and a design methodology for this new concept is highlighted.

Subject Headings: Synthetic materials | Fiber reinforced polymer | Sheets | Prestressing | Wood construction | Composite materials | Wood and wood products | Glass reinforced plastics

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