عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In this paper, for the first time functionality using FRP material as case of buckling restrained brace to prevent buckling, has been studied by stress tests on various samples in vitro. The experiments was performed on different samples bracing with GFRP case and bracing without GFRP case with a fixed length of 800mm and the results were interesting. In the testing sample bracing without casing, the maximum axial compressive load bearing by bracing was recorded 52.45 kN, while it was lower submitted to tensile steel core, namely 198 kN And overall buckling was developed. But in the testing sample bracing with GFRP case was surrounded around of fort axis in total free length core, the axial compressive load bearing by core was recorded 200 kN while it was most of submitted to tensile steel core and It was found that this innovation has contributed conditions buckling restrained brace, while there is no buckling in the bracing view. Also check the load-displacement curve showed that the energy absorption capacity of the sample bracing with GFRP case was surrounded around of fort axis in total free length core was Compared to other samples has increased substantially.