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Strength Property of the Incised Larix (Larix kaempferi Carr.) Round Posts treated with CCA  

Park, Jun-Chul (Department of Wood Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Kim, Sang-Woo (Department of Wood Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Ryu, Jae-Yun (Yeoju Wood Marketing Center, National Forestry Cooperatives Federation)
Hong, Soon-Il (Department of Wood Science & Engineering, College of Forest & Environmental Sciences, Kangwon National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.36, no.3, 2008 , pp. 85-92 More about this Journal
Abstract
Strength of logs and round posts is compared and analyzed to estimate the strength of the incised Larix round posts treated with CCA in this paper. There is no significant difference in MOR of logs and round posts. However, in the incised Larix round posts treated with CCA MOE is decreased to about 9%, and there is 29% reduction in MOR as strength ratio is 0.71. When calculating the allowable bending stress of incised round type round posts, not in nominal 2-in timbers, an adjustment factor for MOE and bending strength is proposed as 0.91 and 0.71, respectively. Logs, round posts and the incised Larix round posts treated with CCA do not show significant difference in nail withdrawal load. There is almost no difference between incised Larix round posts treated with CCA and round posts in the shear strength of bolted joint. When calculating the allowable shear stress of bolted joint, it is conformed that considering the application of incising factor is not necessary.
Keywords
incising; incised round posts; bending test; nail withdrawal load;
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Times Cited By KSCI : 1  (Citation Analysis)
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