ネイルプレートを用いた有孔集成材梁の補強効果

概要

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The purpose of this study is to evaluate an effect of designed reinforcement methods using nail-plates for glue-laminated timber beams with a circular through-hole having a diameter that is at least one-third the beam height. Experiments with bending and shear tests and finite element analyses were used to determine the stress fields and fracture conditions around the hole and estimate the maximum strength of the beams. In the experiments and finite element analyses, it was observed that fractures occurred at the point where the tensile stress exceeds the tensile strength of the beam. This indicates that reduction of the tensile stress around the hole is needed. Based on these results, we propose reinforcement methods using nail-plates for timber beams with a through-hole. The effectiveness of the proposed reinforcement methods is shown by the experimental results.
一般社団法人日本建築学会の論文
2011-03-25