In order to clarify the shear resistant behavior of beam-column joints with high strength concrete, reversed cyclic loading tests were carried out for four exterior beam-column subassemblages. Amount and yield stress of joint hoops, and loading history were chosen as experimental variables. The following remarks were obtained from the test results : (1) Increase of concrete strength reduces the deterioration of the joint stiffness due to reversed cyclic loading. (2) Existence of the joint hoops is also effective to control the excessive slip of the beam bar from the joint. (3) Joint shear strength of JS type may be proportional to the concrete strength. (4) The slighter joint damage was, the greater stress shift of the column bar toward the tension side occurred.
