通しダイアフラム形式で角形鋼管柱に接合されるH形鋼梁の塑性変形能力に関する実大実験

その2.工場溶接形式(梁:H-500×200×10×16)試験体に対する実験

抄録

This paper presents the results of tests conducted for beam-column subassemblages having a beam section of H-500×200×l0×lb (Grade : SS400) and jointed by a method of shop-welding type. A total of 27 specimens were tested, with the type of connection details, type of run-off tabs, method of welding, thickness of through diaphragm, and temperature as test variables. Major findings include that (1) the specimens with improved scallops are superior in plastic deformation capacity to those with conventional scallops; (2) specimens with welding of one path per layer and steel run-off tabs show lower plastic deformation capacity, in which cracks initiated from the toe of weld caused brittle fracture along the heat affected zone of weld.