Abstract
Presently, the shear strength formula of the bolt joint in Japan is based on European Yield Theory (EYT). EYT can evaluate the shear strength of various joints using the strength properties of the main member, side member and joint device. However, the shear strength of bolt joint is not calculated exactly because the end distance and edge distance of the bolt joint are not considered in EYT. Consequently, we execute the shear test of the bolt joint with steel plates of glued laminated timber and propose the compensation factor based on the results of tests in this study. The specimens are separating to 27 types. The parameters consist of the end distance, edge distance and 1/d (the ratio of the thickness of the main member to the bolt diameter). Through this experiment, the following results were obtained. 1) The end distance and edge distance affect the yield strength and ultimate strength of bolt joint. 2) As the end distance becomes larger, so ductility factor becomes larger. 3) It was shown that the proposed formula based on experiments could evaluate the shear strength of the bolt joint more accurate than EYT.
