CYCLIC LOADING TEST AND THE BEHAVIOR OF SRC COLUMN TO BEAM-BRACE JOINT WITH INTERNAL STEEL IN DOUBLE-WEB SECTION

摘要

Steel reinforced concrete (SRC) joints connecting column, beam and brace members in high-rise super-frame structure were tested under cyclic loads. The internal steel in SRC members has the section of two parallel thick plates (webs) which are connected by thin steel plates welded near the top and bottom of the webs at intervals to shape a discontinuous box section. The loading device was carefully designed so that the intersectional members in multi-angles around the joint could be cyclically loaded possibly. The characters of the joint differ from those in moment resistant frame is discussed by the test results.