A Review on Novel Structural Development in Tall Building: Diagrid Structure

Abstract

The development of new structural concepts for the evolution of tall building structural systems have been
towards stiffness and lightness. The structural systems have become further lighter and safer. Structural systems are
more efficient now and this is significantly influenced by its geometrical configuration. Therefore, after selection of
appropriate structural system it should be configured properly to increase the structural efficiency. It is also wiser to
reduce the forces and dissipate the magnitude of vibrations rather than directly standing them. one of the main governing
criteria for structural design of high rise structure is lateral loads which are due to wind and earthquake. The resistance
towards lateral load is provided by interior structural systems and exterior structural systems. From the many structural
systems, available for tall building the diagonalized grid structure have emerged more effective as the primary structural
members carry lateral loads by axial action. the structural effectiveness is increased as the primary structural member is
located on the perimeter of the building. A review paper is presented discussing the effectiveness of diagrid structural
system having different story heights, variable diagrid angles, variable density diagrid system. Optimum diagrid angle
range is discussed and depicted that variable angle pattern is better than regular diagrid pattern and regular diagrid
angle is better than regular frame structure. Lastly, analysis result like displacements, story drift and story shear of a
simple frame and diagrid structural system are compared.