DEVELOPMENT OF WELD-FREE BEAM-TO-COLUMN CONNECTION OF H-SA700A HIGH STRENGTH STEEL FOR BUILDING STRUCTURES

The objective of this study is to develop weld-free beam-to-column connection for H-SA700A high strength steel members, and verify the structural behavior of the proposed connections. Knee brace damper and friction damper were used to connect beam and column by high strength bolts; the trigger level of these dampers were designed to remain beam and column as elastic. Full-scale testing of knee-brace connection showed that damper yielded at the target level and all part of the connections performed as expected. Friction damper, which aluminum is sprayed at the surface, obtained 0.7 as the slip coefficient and a stable elasto-plastic structural behavior were observed after the slippage.