STAAD-BASED ANALYSIS OF A SINGLE-STORY INDUSTRIAL STEEL SHED

Abstract

Some of the most common types of buildings for industrial, logistical, manufacturing, and agroprocessing purposes in India are steel industrial sheds with one story. An symmetrical, one-story industrial shed was analyzed in three dimensions using STAAD, and its compliance with the American Institute of Steel Construction (AISC) Allowable Stress Design (ASD) steel code was verified in this study.The SELECTseries 5 Pro V8i? With a roof pitch of around 19.6°, the structure has a clear span of 22.5 m, a total length of 42.0 m (seven bays at 6.0 m centre-to-center), eaves height of 4.5 m, and ridge height of 8.5 m. This space-frame model has 357 members and 191 joints. It has wide-flange columns (W14×43), web members and truss chords with angle sections (L80808/L60607), purlins with a pipe section (PIPS20), and bracing and eave struts with an angle section (L60606). By combining dead load, live load, and wind load from two directions into three different combinations, we were able to analyze the system as a linear elastic static space frame. Under a combined dead and wind load, the results reveal a maximum column bending moment of 14.16 kN·m and a maximum nodal displacement of 6.17 mm, both of which are well within the allowed range for serviceability. The AISC steel code check shows that the main columns and truss members are adequately designed (utilisation ratio 0.38-0.61). However, the PIPS20 roof purlins are severely overstressed (utilisation ratio up to 89.5) and the L60606 eave struts fail on slenderness (ratio 1.241), so it seems like they need to redesign that section. The article details a whole finite-element-based process for analyzing industrial sheds and shows how code-based verification is useful for finding insufficient member sections that could go unnoticed in handmade designs.