BEHAVIOR OF BUILDING STRUCTURES RETROFITTED USING SHEAR WALLS WITH OPENINGS

Abstract

School buildings are a crucial component of educational infrastructure. Adequate school facilities significantly influence the effectiveness of the teaching and learning process; therefore, their structural performance must comply with applicable building codes. SDN 08 Campago Ipuh, an elementary school located in Bukittinggi City, Indonesia, consists of a three-story reinforced concrete structural system constructed in multiple phases. By 2020, only the foundation and column structures up to the second floor had been completed. Field inspections identified deterioration in several structural components, including concrete bulging, segregation, and visible cracking. Furthermore, the measured compressive strength of the concrete elements fell below the minimum requirement specified in the Indonesian concrete code (SNI 2847:2019). In this study, a structural evaluation was conducted in accordance with current national standards. The results revealed that several critical structural elements, particularly beams and columns, lack sufficient capacity to resist the applied loads. Therefore, strengthening measures are required prior to continuing construction. Among the retrofitting methods evaluated, the use of shear walls was found to significantly improve the load-bearing capacity of the building.