The Open Construction & Building Technology Journal

ISSN: 1874-8368 ― Volume 13, 2019

A Simplified Approach for Analysis and Design of Reinforced Concrete Circular Silos and Bunkers

Muhammad Umair Saleem1, Hassan Khurshid2, *, Hisham Jahangir Qureshi1, Zahid Ahmad Siddiqi3
1 Deptartment of Civil and Environmental Engineering, King Faisal University, Al Ahsa, P.O. Box 380, Saudi Arabia
2Deptartment of Mechanical Engineering, King Faisal University, Al Ahsa, P.O. Box 380, Saudi Arabia
3 University of Engineering and Technology, Lahore, Punjab, Pakistan



Reinforced concrete silos and bunkers are commonly used structures for large storage of different materials. These structures are highly vulnerable when subjected to intense seismic forces. Available guidelines for analysis and design of these structures require special design skills and code procedures.


The current study is aimed to elaborate the design procedures from different sources to a unified method, which can be applied to a larger class of reinforced concrete silos. In this study, analysis and design procedures are summarized and presented in a simplified form to make sure the efficient practical design applications of reinforced concrete silos.


Four different cases of silo design based on the type and weight of stored material were considered for the study. For each case, the silo was designed using given design procedure and modeled using FEM-based computer package. All of the reinforced concrete silos were subjected to gravity, wind and seismic forces.


After performing the analysis and design of different silos, the bending moment, shear force and axial forces profiles were given for a sample silo. The results obtained from the proposed design procedure were compared with FEM values for different components of silos such as slab, wall and hopper.


The comparison of tangential and longitudinal forces, bending moments, shear forces and reinforcement ratios of different parts of silos have shown a fair agreement with the FEM model results. It motivates to use the proposed design procedure for an efficient design of reinforced concrete silos.

Keywords: Silo, Concrete, Bunker, Design procedures, FEM, Seismic force.

Article Information

Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 234
Last Page: 250
Publisher Id: TOBCTJ-12-234
DOI: 10.2174/1874836801812010234

Article History:

Received Date: 8/2/2018
Revision Received Date: 22/7/2018
Acceptance Date: 13/8/2018
Electronic publication date: 23/10/2018
Collection year: 2018

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© 2018 Kheradmand et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Deptartment of Mechanical Engineering, King Faisal University, Al Ahsa, P.O. Box 380, Saudi Arabia; Tel: +966135895440; E-mail:


"We greatly appreciate the efficient, professional and rapid processing of our paper by your team. The editors are so kind and professional to send us the reviewers' feedback in time. Those comments were all valuable and very helpful for us in revising and improving our paper."

Hailong Zhao
School of Civil Engineering,
Tianjin University, Tianjin,

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