Effect of Fire on Epoxy‐Repaired Timber

Avent, R. Richard; Issa, Camille A.

doi:10.1061/(asce)0733-9445(1984)110:12(2858)

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Despite these promising results, external FRP reinforcements have significant disadvantages regarding their structural application, such as visual impact, mechanical damage, and, more importantly, fire sensitivity [35]. For that reason, another line of research has been conducted on the internal FRP reinforcement of wood using bars and sheets with different configurations [36,37].…”

Section: State Of the Artmentioning

confidence: 99%

Internal GFRP Reinforcement of Low-Grade Maritime Pine Duo Timber Beams

2020

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This paper presented an experimental structural-scale test campaign used to analyze the flexural behavior of low-grade maritime pine (Pinus pinaster Ait.) duo timber beams reinforced with an internal glass fiber-reinforced polymer (GFRP) sheet. For this purpose, thirty (30) unreinforced duo beams and thirty (30) duo beams internally reinforced with a unidirectional GFRP sheet with an areal mass of 1200 g/m2 were produced and tested. The addition of a low GFRP reinforcement ratio (1.07%) in the tension zone of the duo beams provided an average improvement of 8.37% in bending stiffness (EI) and an increase of up to 18.45% in ultimate moment capacity. In addition to this improved bending behavior, the internal GFRP reinforcements seemed to decrease the influence of wood singularities and wood heterogeneity on mechanical properties, which allowed for better characteristic values to be reached and for the achievement of results with less variability.

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Section: State Of the Artmentioning

confidence: 99%

Internal GFRP Reinforcement of Low-Grade Maritime Pine Duo Timber Beams

2020

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“…Timber has low thermal conductivity; it is measured at approximately 0.8 (measured in J/h/m 2 /mm/°C) compared with 12.6 for concrete and 312 for steel [31]. Most epoxies begin to soften at 90-120°C and the strength rapidly decreases.…”

Section: Fire Performancementioning

confidence: 99%

Repair and reinforcement of timber columns and shear walls – A review

Chang

2015

Construction and Building Materials

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h i g h l i g h t sDifferent failure mechanisms of timber columns and shear walls are analysed. Techniques to repair and reinforcement of timber columns and shear walls are introduced and reviewed. Advantages and disadvantages of each technique are analysed, and gaps between research and practice are identified. a b s t r a c tThis paper provides an overview of state-of-the-art repairing and reinforcing techniques on timber columns and shear walls in both research and practice. Both research projects in the laboratory scale and real repair/reinforcement projects are examined. It covers two levels of intervention; repair and reinforcement of timber elements. The former focuses on damaged elements and the latter focuses on enhancing the mechanical properties of the elements. Firstly the need to reinforce and repair timber columns and shear walls is discussed, followed by an extensive review of current techniques for repair and reinforcement. Advantages and disadvantages of different existing techniques are analysed so as to inform future practice and research. Finally, several important issues, such as reversibility and long term behaviour, are also discussed.

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