Departmental Bulletin Paper 複半月充填支圧ボルト接合による高強度鋼梁継手の載荷性状

玉井, 宏章  ,  森田, 真理乃  ,  島田, 有二朗

47 ( 89 )  , pp.22 - 29 , 2017-07 , 長崎大学大学院工学研究科
We present the shear joint using half-moon shaped bearing bolt as an effective fastener between high-strength steel members. Experimental studies were carried out to clarify the maximum strength and the elastic stiffness of beam flange joint. Also, materially and geometrically non-linear finite element analyses were carried out to show the mechanical properties of the joint with half-moon shaped bearing bolts. This paper shows the concept and capabilities of presented bolts. Obtained result was summarized as follows. The shank of the half-moon-shaped bolt has enough ultimate strength. Slip back phenomena, in which the diagonal cut face of the shank slips out of its normal position, doesn’t occur during elastic cyclic loading. The half moon bolts always penetrate the connected steel plate so as to fill up a hole. Hence, the present beam joint maintains constant stiffness during elastic cyclic loading.

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