Expert Notes
Published September 2, 2024 | Version 1
Book chapter Open

Behaviour of Slender Building with Variable Angle Diagrid Structure under Lateral Loads

Authors/Creators

  • 1. Department of Civil Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India

Description

Abstract: Following the industrial revolution, there was a rapid increase in the construction of slender buildings due to the challenges posed by urbanization and limited available space. Tall buildings prioritize lateral load-resisting systems over gravitational loads. While various systems exist, the 'diagrid' stands out for its structural efficiency and aesthetics. Unlike framed tube structures, diagrids employ inclined columns on the facade, relying on axial forces in diagonals for lateral load resistance. This innovative approach enhances both structural performance and aesthetics, making diagrids a popular choice in modern tall building construction. This paper explores the dynamic behavior of both constant angle and variable angle diagrid structures under lateral loads. Using the EATBS 21 software, a 64-story building model with a plan dimension of 24x24m, an overall height of 242.3m, an average story height of 3.8m, and a slenderness ratio of 10.13 is created. The study is conducted for a location in Delhi having seismic (zone-4). The aim is to determine the optimal angle for constant angle diagrid and create patterns of variable angle diagrid structures. These models are then compared to constant angle diagrids in terms of structural weight of diagrid and performance of the building.

Keywords: Slender building, Diagrid, Lateral displacement, Inter-story drift, Response spectrum, Wind analysis.

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Additional details

Dates

Accepted
2024-08-01
Accepted
Available
2024-09-02
Published

References

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