EXPERIMENTAL STUDY ON LENGTHENING BUCKLING-RESTRAINED BRACES USING STEEL MORTAR PLANKS

Verification for realization of 12m in length and 40mm in thickness

Abstract

In recent years, Buckling-Restrained Braces (BRB) used in high-rise buildings have increasingly required high strength brace. Therefore, it is necessary to verify the feasibility of Buckling-Restrained Braces using Steel Mortar Planks (BRBSM) that are capable of handling larger sizes. In this study, we fabricated a full-size BRBSM based on a trial design of the largest size and its corresponding reduced-size test specimen. Structural test on the reduced-size specimen confirmed stable restoring force characteristics and energy absorption performance. Additionally, a fabrication test using the full-size specimen verified its feasibility by meeting the established quality control standards.