SHEAR PERFORMANCE OF STRUCTURAL PARTICLEBOARD-SHEATHED LIGHT-FRAME WALL

The National Institute of Forest Science developed structural particleboard (PB), which is made of domestic wood, to substitute for imported OSB (Oriented Strand Board) used as a structural sheathing panel in lightframe construction.To investigate whether structural PB could be used as sheathing panel of light-frame wall or not, shear resistance of light-frame wall sheathed with structural PB compared with that of light-frame wall sheathed with OSB.Shear resistance was evaluated using a hysteresis curve by applying a quasi-static load.Shear strengths of wall sheathed with OSB and PB were 7.9 and 8.7 kN/m, respectively.It was confirmed that secant shear modulus for OSB and PB walls at 40% of the maximum load was 2.4 and 3.7 kN/mm, respectively.In addition, ductility was shown as 8.3 and 10.0 in OSB and PB walls, respectively.It was confirmed that shear resistance of PB wall was higher than that of OSB wall.From the results in this study, it is considered that structural PB manufactured using domestic wood can be used for sheathing material of light-frame construction, and it is expected that it can contribute to the national carbon stocks.