抄録
RC beams without stirrups on couplers were tested to investigate the shear performance. Seventeen specimens were designed and constructed with different structural details such as existence of coupler, coupler length, location of coupler, and existence of stirrups on coupler. In particular, the existence of standard couplers did not significantly affect on beam shear strengths unless stirrups located at the ends of couplers yielded. Moreover, a method to consider the specific details of this kind of structure in the AIJ design equations was presented to evaluate the shear strengths. Its applicability was examined through the test results.