Analysis and Design of High-Rise Building Using Diagrid Structural System

Diagrid Structural System is defined as a system that consists of diagonal columns and horizontal members to mitigate and perform against lateral forces by making up a triangular model on the periphery of the building. Diagrid structural system provided by diagonals on the periphery is adopted in tall buildings due to its structural efficiency as result of its triangular configuration against both lateral loads and vertical loads. In this paper, analysis and design of Diagrid module is carried out by three manners innuendo Manual Calculation using stiffness method, ANSYS V12.1 software, and ETABS V9.6.0 software. A floor plan of 36 m by 36 m having six spans of 6 m, and 48 stories with typical storey height of 3.6 m is considered. ETABS software is used for Dynamic Analysis of total Diagrid building, and ANSYS software and Manual calculation are used for Static Analysis of Diagrid’s Diagonal Periphery. Analysis is performed as per IS:800-2007 and IS:1893-2002. Design wind speed is calculated as per IS:875-1987 Part-3, and specification of steel is taken as per IS:2062-2011. Comparison of analysis results in terms of Static and Dynamic control of Diagrid building, therefore Static Analysis is carried out to define Lateral Stiffness/Displacement of Diagrid’s Diagonal Periphery, and Dynamic Analysis is carried out to define Time History, Time Period, Storey Displacement, Storey Drift, Storey Shear, and Load Distribution in Diagrid.