International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 07 | July 2024
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p-ISSN: 2395-0072
COMPARATIVE STUDY ON THE EFFECTIVENESS OF VARYING ANGLE DIAGRID STRUCTURAL SYSTEM IN HIGH RISE BUILDING Vidya Sadashiv Khanure1 and Vathsala2 1PG student, Dept. of Civil Engineering, BIT college, Bangalore, Karnataka, India
2Associate Professor, Dept. of Civil Engineering, BIT college, Bangalore, Karnataka, India
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Abstract – The diagrid structural system has gained
reducing the need for excessive bracing and reinforcing materials, thereby enhancing both functionality and sustainability. In essence, the diagrid system represents a harmonious fusion of form and function, making it a preferred choice for architects and developers seeking to construct iconic, efficient, and structurally sound buildings in modern urban environments.
popularity recently in tall buildings because of its flexibility and structural efficiency. Each storey height's diagrid structure is planned with diagonals positioned at varying uniform angles and angles that progressively change as the building height increases. Due to the presence of inclined columns, the diagrid construction resists lateral loads more effectively than typical frame buildings with outside vertical columns. The slanted columns that are positioned at the outside edges of the structures in the diagrid system act axially to resist lateral loads because of their triangular shape, the diagonal members of diagrid structural systems are capable of supporting lateral forces and gravity loads. This study considers a thirty-storey high-rise building with different shapes of buildings, a different angle diagrid, and no diagrid structure. They are modelled for dead, live, seismic, and wind loads using ETABS software for zone 3 of medium soil. Scale factor is taken into consideration in both the X and Y directions according to IS code, and linear static and dynamic analysis has been performed. It is necessary to compare the structures with and without diagrids in order to compute the findings. It is anticipated that the diagrid system will improve the performance of lateral load and gravity load resistance for high-rise buildings.
The principle underlying the diagrid structural system revolves around the utilization of diagonal members in place of traditional vertical columns or shear walls. This innovative approach capitalizes on the inherent strength of triangles, which are known for their stability and loadbearing capabilities. By strategically arranging these diagonal members in a grid-like pattern, the diagrid system effectively distributes the forces acting on a building, such as wind and seismic loads, in a more efficient and balanced manner. This results in enhanced structural stability and reduces the need for excessive bracing, allowing for greater design flexibility and open interior spaces. The principle of the diagrid system showcases the synergy between form and function, where architectural elegance merges seamlessly with structural integrity to create iconic and resilient buildings.
Key Words: High rise building, Angle diagrid system, Lateral load, seismic loads, ETABS software, varying angles.
1.INTRODUCTION Structural engineers have come up with innovative designs throughout the history to decrease the lateral movement of high-rise buildings. The diagrid system is a structural and architectural marvel, known for its dual benefits of strength and aesthetics. It features a diagonal lattice of structural members that not only provide stability to tall buildings but also lend them a distinctive and iconic appearance. This system's unique design allows architects to create visually stunning structures with unconventional shapes and facades, setting them apart as urban landmarks. Beyond its visual appeal, the diagrid system enhances interior spaces by eliminating the need for numerous vertical columns or shear walls. The open layout provides flexibility for interior design and space utilization, making it especially advantageous for commercial and office buildings. Additionally, it efficiently distributes lateral forces like wind and seismic loads,
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Fig-1: components of angle diagrid system
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