Effect of Link Length Variation on the Performance of Cold Formed Steel EBF Structures

Abstract Building damage due to earthquake shocks causes affected victims to potentially lose their homes so that temporary housing is needed. Therefore, strengthening of buildings using bracing is needed to support building resistance to lateral loads in earthquake areas. Bracing can be divided into two types, namely concentric and eccentric. Eccentric braces have links that will form inelastic rotation when yielding occurs due to deformation that occurs in the structure so that they are considered effective in absorbing lateral loads. EBF (eccentric braced frames) have better stiffness when compared to MRF (moment resisting frames) but are able to provide better ductility behavior compared to CBF (concentric braced frames). The purpose of this experimental study was to determine the performance of variations in EBF split-k cold-formed steel wall panel links against lateral loads. The aspects reviewed are maximum load, maximum deviation, and stiffness. The flow of this research is the manufacture, testing of test objects, and data processing. In this study, the following results were obtained: the short link variation obtained the largest maximum load result with 134.62 kg, the smallest maximum deviation of 30.472 mm, and the largest stiffness with 18.363 kg/mm.