Comparative Analysis of Diagrid Structural System with Moment Frame, Shear Wall and Brace Tube as Inner Core

The diagrid structural system is an innovative and modern approach in architecture and engineering. It is especially suited for high-rise buildings because of its unique diagonal grid of steel or concrete members. This system provides excellent resistance to lateral forces such as wind or seismic load. The integration of a diagrid system with an inner core structural system offers a balanced combination of strength, efficiency, architectural flexibility, and economic benefits. One of the key features of the diagrid system is the careful optimization of the angle of these diagonal members because diagonal angle directly impacts both the structural strength and the building's architectural design. The right angle ensures that the building efficiently handles gravity and lateral loads. This study aims to analyze various aspects of the diagrid core structural system. Specifically, it compares different types of inner cores such as shear walls, moment frames, and braced tubes combined with the diagrid system. The analysis covers important factors like Time period, story Displacement, story Drift, base shear and Cost comparison. ETABS software is used for the analysis and loads according to Indian standards. The Study evaluate that The Diagrid Shear wall(DSW) system, the most stable but Expensive, is best for medium-rise buildings in high seismic zones at angle of diagrid 80°, where safety is the priority. The Diagrid Brace tube (DBT) system provides a balanced option with a good performance, offering a practical compromise between flexibility and lateral resistance, particularly for areas with moderate seismic activity at angle of Diagrid 77° and 80°.