Comparative Analysis of Circular and Rectangular Reinforced Concrete Tanks Based on Economical Design Perspective

Abba Mas’Ud Alfanda

doi:10.11648/j.ajasr.20170302.12

Abstract

The need for a water tank is as old as civilization, to provide storage of water for use in many applications. Design and cost estimation of water tanks is a time consuming task, which requires a great deal of expertise. All tanks are designed as crack free structure to eliminate any leakage. This project therefore studies the efficiency of rectangular or circular tanks, 40,000 liters capacities were used in order to draw reasonable inferences on tanks shape design effectiveness, relative cost implications of tank types and structural capacities. The basic tanks construction materials include steel reinforcement, concrete and formwork obtained from the prepared structural drawings. Result of the materials take–off revealed that circular tank consumed lesser individual materials as compared to rectangular one. This will give circular shaped tanks more favored selection over the rectangular shaped tank, although some other factors must still be assessed.

Highlights

Water is considered as the source living for every creation as it is a crucial element for healthy living
The construction material outputs for all water tanks shape would be based on the choice of the design considerations, with the size of their structural elements
There exists the possibility of having an equal capacity and similar geometrically shaped water tank but with some measurable difference in material requirement, for instance, a tank wall designed as a cantilever would come up with a relatively difference material quantity when compared with its material requirements

Summary

Introduction

Water is considered as the source living for every creation as it is a crucial element for healthy living. Safe drinking water is one of the basic elements for human to sustain a healthy life. [1] Rationalized the design procedure for reinforced and pre-stressed concrete tanks so that an applicable Canadian design standard could be developed. The paper includes experimental and analytical phases of total of eight full scale specimens, representing segments from typical tank walls, subjected to load and leakage tests. The proposed design procedure addresses the leakage limit state directly. It is applicable for fully pre-stressed, fully reinforced and partially pre-stressed concrete water tanks. A design method based on limiting the steel stress, does not produce consistent crack or compression zone depths under the application of pre-stressing nor under a combination of axial load and moment

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Conclusion