The Adhered Steel Brace is one effective retrofitting method of the earthquake-resistance strengthening work that can be done with little noise and little vibration. In this method, the steel frame with brace is bonded to the existing columns and beams by epoxy resin. The work also can be done in a shorter period of time. The seismic behavior of the adhered steel brace was investigated. The seven specimens were tested under constant compressive loads and repeated lateral forces. The main parameters are the adhesion area and shapes of braces. We compared the adhered braces with the conventional bracing method and the brace using mortar to the replacement of epoxy resin. We discussed the sliding strength of joints between the existing frame and epoxy resin, the mechanism after sliding of joints and the ultimate lateral strength.
