Comparing Seismic Analysis of PEB Shed Based on IS Codes

Abstract

Introduction

This thesis focuses on the analysis and design of a warehouse in Bhuj using the Pre-Engineered Building (PEB) concept, a modern and efficient construction technique. The design is based on Indian Standard (IS) codes, and the structural analysis is conducted using STAAD Pro software, which helps calculate stresses and optimize member sections for cost-effectiveness and structural safety.

Key Aspects:

1. Pre-Engineered Building (PEB) Concept:

• PEBs are steel structures that are pre-designed and manufactured in factories, then assembled on-site.

• Advantages: Faster construction, lower costs, reduced site labor, flexibility in design, seismic resistance, and low maintenance.

• Disadvantages: Poor thermal and fire resistance, susceptibility to corrosion, and limited architectural flexibility.

2. Structural Design Approach:

• The building design considers major loads: Dead load, Live load, Wind load, and Seismic load.

• STAAD Pro is used for structural analysis, including automatic seismic load calculation.

• The design aims to enhance performance while ensuring cost-effectiveness and structural reliability.

3. Project Overview – Warehouse Design:

• The proposed structure is a rectangular steel warehouse/shed with supports designed to ensure long-term durability.

• A rigid frame system is used to transfer loads to the foundation efficiently.

• Special attention is given to wind effects, especially uplift or down pressure on the roof due to complex wind patterns.

4. Seismic Zone Considerations:

• Since Bhuj is in Seismic Zones IV & V, seismic design plays a critical role.

• The study includes a comparison of four design cases:

  • Case 1: IS 1893 Part-1, excluding IS 800-2007 Chapter 12

  • Case 2: IS 1893 Part-4, excluding IS 800-2007 Chapter 12

  • Case 3: IS 1893 Part-1, including IS 800-2007 Chapter 12

  • Case 4: IS 1893 Part-4, including IS 800-2007 Chapter 12

The comparison helps evaluate the cost and structural impact of each design scenario, aiming to find the most effective and code-compliant solution.

Conclusion

In this paper we have effectively noticed that the warehouse structure designed as per IS 1893 part-1 & IS 800 (LSD) excluding chaper-12 was most economical and likeably safe. Other options like PEB design as per IS 800 with chapter 12 are comparatively uneconomical and likeably safe. PEB structures can be easily designed effortlessly using software and simple calculations for connection design. The opinion of choosing the code is purely based on the structural requirement and customer requirements. We have just compared which options are better for customers when it comes to simple warehouses. The final decision to adopt the option as to be taken between the consultant and the customer.

References

[1] N. Subramanian,2010 “Steel Structures Design and Practice” oxford University press. [2] The relevant Standard/Codes used for the design for various elements and components of the building are given below

Copyright

Copyright © 2025 Ilavendan S. 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.