Pre-Engineered Buildings (PEBs) are the most preferred choice for construction due to their cost-effectiveness and quick construction process. In comparison to traditional steel buildings, PEBs are optimized steel structures that save material about 20 to 30%. This study focuses on the comparision of PEB and CSB in terms of steel take off. The aim of this study is to give valuable insights into efficiency and cost effectiveness of utilizing steel in these two construction methods. Also, to improve understanding of optimal steel usage practices for multiple construction projects by examining the differences between pre-engineered and conventional steel buildings.
Based on the building’s geometrical characteristics such as roof angle, length, breadth, height, bay spacing, and location of the structure, the need for steel is determined. A typical PEB and CSB have been modelled and analysed based on several factors in this project work using Staad Pro software. Based on IS 875 and IS 1893, different types of loads have been computed. These loads have been applied to the Staad Pro model and examined. For the analysis, more than 70 different load combinations were taken into account.
The various response parameters such as shear force, bending moment, axial force, support reactions are compared. The amount of steel required for a PEB against a CSB has been compared. The structures have been analysed both for wind load and seismic loads and the critical load combination has been determined. The amount of steel required for PEB is lesser by 24.90 % compared to CSB.