Analisis Pengaruh Mutu Beton terhadap Kinerja Struktur Gedung Bertingkat di Daerah Rawan Gempa

Abstract

Concrete is the most widely used construction material in high-rise buildings due to its high compressive strength, durability, and relatively low cost. However, the quality of concrete significantly influences the safety, strength, and overall performance of structures, especially in regions with high seismic activity. Indonesia, located along the Pacific Ring of Fire, faces a high risk of earthquakes, making earthquake-resistant structural design essential. This study aims to analyze the effect of concrete quality on the structural performance of high-rise buildings in seismic-prone areas and to evaluate structural resistance based on different concrete grades. A quantitative approach was applied using numerical simulations on a multi-story building model designed according to seismic-resistant standards. The study examined normal, medium, and high-strength concrete. Structural analysis considered deformation, interstory drift, base shear, and potential damage levels under seismic loads. The results indicate that higher concrete strength significantly improves structural performance. High-strength concrete reduces deformation and interstory drift while increasing the structure’s capacity to resist seismic forces. It also minimizes structural damage and enhances service life. However, selecting concrete quality must balance technical and economic factors to achieve efficient and sustainable design. In conclusion, concrete quality is a critical factor in improving seismic performance and structural safety.