Abstract
When a steel frame is subjected to horizontal force due to earthquake, high shear force is developed in the beam-to-column joint panel. Many studies to investigate the strength and deformation of joint panel were carried out. In this paper, the shear force loading tests for joint panel and for cruciform subassemblage of rectangular and circular hollow section are reported. As the main experimental parameter of these tests, axial force ratio and loading direction are selected. The results are summarized as follows. The hysteretic characteristics of joint panel are different from the steel grade and how to make of rectangular and circular hollow sections. Axial force leads to reduction of the strength and the increase of axial displacement. The hystereses of joint panel in cruciform subassemblages are similar with those of specimens of shear loading test. And the strength of panels agrees with those of specimens of shear loading test.
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