Design Optimization of Steel Structures from Conventional Steel Building to Pre-Engineered Building by Varying Loads

Abstract

Pre-engineered buildings’ (PEB) quality design, pre-fabrications and fast erection, it is now being replaced by conventional steel buildings (CSB). In this study, 16 different 2D Frames were selected for each pre-engineered building and conventional steel building. By varying the tributary width and wind speed, the frames were analyzed by a software of structural analysis i.e., STAAD pro (V8i). A comparison was conducted depending upon base reactions, moments at eave, horizontal defection at eave, vertical deflection at ridge and steel take off. A building with 25 m width, 100 m length and 10 m eave height was selected and AISI-ASD (American Iron & Steel Institute-Allowable Stress Design) and MBMA-2006 (Metal Building Manufacturers Association-2006) protocols were adopted as design code and for load application respectively. The results showed that PEBs gives low base reactions, horizontal deflection at eave, and steel take off as compared to the CSBs. The study proved that with increase in loading, the percentage of saving in steel increases in pre-engineered building as compared to conventional steel building. Hence, the performance and cost effectiveness of pre-Engineered building was much improved under heavy loading as compared to the conventional ones