This paper presents the results of shaking table test on earthquake response behavior of 2-story space frames composed of H-shaped steel beam and column with shear yielding of joint panel zone. The main objective of this test is to investigate an influence of shear yielding of joint panel on maximum inter-story drift and energy absorption capacity of the frames. The results of the shaking table test are summarized as follow. 1) Maximum inter-story drift in each story of the specimens becomes smaller, as the thickness of doubler plates becomes greater. 2) Energy absorption capacity of the H-2 specimen yielding both beam and panel becomes largest in the test. 3) Fracture of the RBS connections in the H-4 specimen is not observed at the end of the test.
