構造用面材を側材に用いたビス接合部における一面せん断剛性・耐力推定式の提案

概要

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Screws are commonly used for timber constructions. Especially, single-shear characteristics of screw joints with structural panels are important. New estimating equations on initial stiffness, yield strength, secondary stiffness, and ultimate strength of single-shear screw joints were proposed. To confirm validity of the hypothesis, load-deformation curves on a series of single-shear test were measured. The simple estimating equations of initial stiffness under considering a fastener as rigid-body were applicable enough by defining "effective rigid-body length." The yield strength was evaluated as the sum of yield strength by European Yield Theory and friction caused by initial axial force of the fastener. The secondary stiffness could estimate by using axial force. But in some series, the estimation value was higher than the test value because a selected yield mode was different from the actual yield mode. The ultimate strength could be predicted from yield strength and axial force.
社団法人日本建築学会の論文
2007-12-30