SHAKING TABLE TEST ON EARTHQUAKE RESPONSE BEHAVIOR OF2-STORY STEEL FRAMES WITH YIELDING JOINT PANEL ZONE

摘要

This paper describes the results of shaking table test on earthquake response behavior of 2-story steelmoment resisting frames, which consist of H-shaped beams and H-shaped columns with yielding panelzones. A major objective of this study is to investigate the effect of energy dissipation in panel zones oninelastic response behavior and total energy dissipation capacity of the frames. In order to achieve theobjective, four specimens (H-1～H-4) were prepared for this test. These specimens were designed withthree different level of panel zone strength. Specimen H-1 (none doubler plate) was designed so that allyielding would occur in the panel zones. Specimen H-2 (one 2.6mm doubler plate) was designed topromote yielding in both the panel zones and the beams. Specimen H-3 (two 6mm doubler plates) wasdesigned so that all yielding would occur within the beams. Specimen H-4 (two 6mm doubler plates) wasdesigned to have the reduced beam section (RBS) connection proposed in the FEMA 350. The inputearthquake ground motion used in the shaking table test is a PGA of 0.8g of the JMA Kobe. Thefollowing results were obtained form the shaking table test. 1) Specimen H-2 had the largest energydissipation capacity among four specimens. 2) Specimen H-4 had the largest beam rotation capacityamong four specimens, but was not largest energy dissipation capacity.