Structural Behaviour of Hexagrid and Diagrid Structural Systems in Multi Storey Buildings

More recently, the diagrid structural system with tubular behaviour is being employed as structurally efficient as well as architecturally satisfying structural system for tall buildings. Perimeter diagonals act as a facade, which governs the aesthetics of the building to a great degree. In order to improve the efficient of tube-type structures in tall buildings, a new structural system called Hexagrid (Beehive) is introduced in this paper. In the hexagrid structure system, almost all the conventional vertical columns are eliminated. Hexagrid structural system consists of Hexagrid perimeter which is made up of a network of multi-storey tall hex-angulated truss system. Hexagrid is formed by intersecting the diagonal and horizontal components. The project is focused to horizontal hexagrid pattern which aims to investigate the optimal angle and a topology of diagonal members in a hexagrid frame using finite element analysis and to study the structural properties of hexagonal structures so as to compare their potential efficiency with the conventional systems. This effect can be better appreciated by analyzing the results in terms of inter storey drift, time period and displacement.