高強度繊維補強モルタルとネジ節鉄筋の付着性能に着目したプレキャスト床版接合部の曲げ載荷実験

抄録

The authors focused on high-strength fiber reinforced mortar with compressive strength of 100 N/mm2 class, and proposed a rational joint structure that is easy and economical to construct. The proposed structure is an open-jointed one in which screw rebars are used for the bridge axis direction rebars of the PCa slab, and a concave aspect is provided at the joint interface where the tip of the rebar fits. In this study, one-sided pull-out tests of rebars were conducted to evaluate the bonding performance of screw rebars in high-strength fiber reinforced mortar. In addition, bending loading tests were conducted on the slab joints of the proposed structure to examine the bending load capacity, cracking behavior, and rebar behavior.