木製軽構造の研究

概要

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The shell planking of wooden vessels is ordinarily of single planking system. But there would be many other systems which are supposed to be more effective. To ascertain the effect of the alteration of shell planking system on the strength and stiffness of wooden vessel, we carried out the bending tests on eight box-shaped beams which correspond to the following shell structure systems respectively: A: single planking system, B: the same as A, but with narrower frame space, C: double planking system, with inner layer planked 45 degrees diagonally and outer one longitudinally, C': the same as C, but with outer planks connected by butt joint, D: double planking system with both layers planked 45 degrees diagonally, D': the same as D, but with both layers glued to each other, E: double planking system with both layers planked 35 degrees diagonally, F: double planking system with both layers planked longitudinally. The results have showed that in regard to strength and stiffness, the systems marked by C, C', D, D' and E (which are all double planking systems with diagonally planked layers) are far better than the systems A and B (both of which are single planking systems) and the system F lies between them.
社団法人日本船舶海洋工学会の論文
1955-06-25