Scope of Unconventional Grid in Tall Building: A Way Forward

Abstract

Abstract Due to structural efficiency and architectural aesthetic potential diagrid structures are commonly used for today’s tall buildings an extension to this, new grids can be studied and checked. Early tall building designs from the late 19th century understood the value of diagonal bracing member for mitigating lateral stresses. The application of diagrid was common practice for complex structures. In extension to diagrid study, the unconventional grid can also be used. In this study Unconventional geometry for tall buildings has been adopted, it is imperative to find an appropriate structural system for improved overall performance. Understanding various structural systems and using various codal provisions, an attempt has been made to consider the Unconventional grid as the outer grid for tall buildings. Two cases have been considered here, The first is a square-shaped building with an Unconventional grid including peripheral columns and the Second case is a Conventional grid with peripheral columns for the same shape. Modelling for Unconventional geometry is done on Rhino 3D using Grasshopper as a plugin, which was imported on SAP2000 and steel is used as the building material. Analysis has been carried out for both Lateral Loads i.e., Earthquake and Wind Loads as per codal provisions. The results suggest the potential use of unconventional grids in tall buildings. To measure how effectively one can use Unconventional geometry and overcome the flaws of conventional methods, this study can also be a milestone for upcoming infrastructure development.