Comparative Analysis of Mono-Slope and Dual-Slope Pre-Engineered Building Industrial Sheds Under Different Wind Speed

Abstract

Pre-Engineered Buildings (PEBs) have emerged as an economical and structurally efficient alternative to conventional steel structures for industrial applications. Roof configuration significantly influences the structural performance, stability, and material consumption of PEB industrial sheds. The present study investigates the comparative behaviour of Mono-Slope and Dual-Slope PEB industrial sheds subjected to varying wind speeds of 33 m/s, 47 m/s, and 55 m/s. Six STAAD.Pro models were developed using identical geometric dimensions, material properties, loading conditions, and design parameters. Dead load, live load, and wind load were applied according to IS 875 (Part-3), while structural design was carried out in accordance with IS 800 provisions. Structural responses including maximum bending moment, axial force, shear force, deflection, and steel consumption were evaluated. Results indicate that Dual-Slope structures perform significantly better than Mono-Slope structures under all wind conditions. At 55 m/s wind speed, Mono-Slope sheds exhibited approximately 31% higher bending moments, 22% higher axial forces, 18% higher shear forces, and 34% higher steel consumption compared to Dual-Slope sheds. The symmetrical geometry of Dual-Slope roofs provides balanced load distribution, improved stiffness, and reduced internal force concentration. The study concludes that Dual-Slope PEB industrial sheds offer superior structural efficiency, improved stability, and enhanced economy, particularly in medium and high wind zones.

Introduction

The text discusses the structural analysis and comparison of Mono-Slope and Dual-Slope Pre-Engineered Building (PEB) industrial sheds under different wind conditions. Industrial buildings require economical and efficient structural systems, and PEBs have become popular because they use optimized steel sections, reduce material consumption, lower construction costs, and allow faster erection.

The study focuses on the effect of roof configuration on PEB performance. Mono-Slope roofs are simple and easy to construct, while Dual-Slope roofs provide better symmetry and load distribution. The research compares both configurations under wind speeds of 33 m/s, 47 m/s, and 55 m/s.

The literature review highlights that previous studies found PEB structures achieve significant steel savings compared to conventional steel buildings due to optimized tapered sections. However, limited research exists on comparing Mono-Slope and Dual-Slope PEB roofs under varying wind speeds.

Objectives of the study:

• Analyze Mono-Slope and Dual-Slope PEB sheds under different wind speeds.
• Compare bending moment, axial force, shear force, and deflection behavior.
• Evaluate steel consumption and identify the most economical roof type.
• Study the impact of increasing wind speed on structural response.

Methodology:
The study follows these steps:

1. Selection of roof configurations.
2. Development of structural models using STAAD.Pro.
3. Assignment of material properties.
4. Application of dead load, live load, and wind load according to IS 875 (Part-3).
5. Structural analysis and comparison of results.

Six models were created:

• Dual-Slope PEB at 33, 47, and 55 m/s wind speeds.
• Mono-Slope PEB at 33, 47, and 55 m/s wind speeds.

The building parameters include a 98 m length, 25 m width, 8 m clear height, and different wind speed conditions.

Results:

• Shear Force: Mono-Slope structures showed higher shear forces due to their asymmetric geometry and uneven wind load distribution. At 55 m/s wind speed, Mono-Slope shear force was significantly higher than Dual-Slope.
• Axial Force: Dual-Slope structures showed more balanced axial force distribution, while Mono-Slope structures experienced higher axial forces at increased wind speeds.

Conclusion

The following conclusions are drawn from the study: 1) Dual-Slope PEB sheds consistently demonstrate superior structural performance compared to Mono-Slope sheds. 2) Steel consumption in Mono-Slope sheds is approximately: o 25% higher at 33 m/s o 29% higher at 47 m/s o 34% higher at 55 m/s 3) Bending moments in Mono-Slope sheds are: o 13–14% higher at 33 m/s o 12–13% higher at 47 m/s o Approximately 31% higher at 55 m/s 4) Axial forces in Mono-Slope structures increase significantly under higher wind speeds and become approximately 22% greater at 55 m/s. 5) Shear force values remain consistently higher in Mono-Slope sheds, reaching nearly 18% higher values under severe wind conditions. 6) Dual-Slope structures provide improved load distribution, lower internal force concentration, enhanced stiffness, and reduced steel requirement. 7) The Dual-Slope PEB industrial shed is the most economical, stable, and structurally efficient configuration for medium and high wind regions.

References

[1] Syed Firoz et al. (2012), Structural Design Concept and Comparison of PEB and CSB. [2] Kavya Rao (2012), Comparative Analysis of Industrial Buildings Using PEB Systems. [3] Pradeep and Papa Rao (2014), Structural Performance Analysis Using STAAD.Pro. [4] Lande and Kucheriya (2015), Comparative Study of PEB and Conventional Steel Buildings. [5] Arpita Bhadoria and Siddhartha Pathak (2017), Structural Efficiency and Economy of PEB Structures. [6] Muhammad Umair Saleem (2018), Optimization Techniques in Steel Structures. [7] Naik and Mahure (2021), Comparative Study of Warehouse Structures Using PEB Systems. [8] Ramakrishnan et al. (2022), Comparison of Truss Systems and PEB Structures. [9] Siddangoudar and Sawant (2024), Comparative Study of Warehouse PEB Structures. [10] Chaudhary and Maru (2026), Lateral Load Response of PEB Structures with Advanced Bracing Systems.

Copyright

Copyright © 2026 Arpit Shrivastava, Dr. Savita Maru, Rakesh Patwa. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.