2019 Volume 73 Issue 1 Pages 184-191
With the objective of rationalizing the joint between precast membars, propose a restrained lap joint that has undergone a tensinle test with a focus on the lap length and pitch of the spiral reinforcement （the reinforcing bar ratio）. Then, conducted bending and shear experiments on the members that had the joint fitted with the restrained lap joint. The results reverled that by setting the lap lengths of the main rebars with diameters of D25 and D13 to nine and eigth times that of the main bar diameter, resperctively, and a spiral-rebar reinforcing bar ratio of 6.2％, the connector exhibited performance similar that of an SD345 rebar joint. Further, it was revealed that the connected members that had a joint fitted with the connecter showed bending and shear performance equivalent to those of a monolithic members.
