Restoring Force Characteristics of Steel Framed Structure with Non-Compression-Braces
repeated load experiment
restoring force characteristics
Non-compression braces have following advantages: 1) No buckling phenomenon happens. 2) No slip phenomenon due to plastic deformation of the brace happens. 3) The restoring force characteristics show spindle-shaped curve. 4) When the wedge device is installed at the braceend, the conventional braces can be transformed into the non-compression braces. In this paper, horizontal loading tests of rigid frames with braces attached by high-strength bolts were carried out in order to examine the applicability of the non-compression braces to rehabilitation of existing structures. The K-shaped braces as well as the X-shaped ones were employed to clarify the deformation behavior of strengthened fames. The initial rigidity and the strength of the frames with the braces increased and the cyclic characteristics of the frames showed spindle-shaped.