Optimization of Eccentrically Loaded Reinforced-Concrete Isolated Footings
Publication: Practice Periodical on Structural Design and Construction
Volume 23, Issue 2
Abstract
Footing design should satisfy the requirements as specified in the design standards of a country. The tendency of most of the conventional design approaches is to achieve design requirements first and estimate economics afterward. Also, the existing literature has recommended various approaches to reduce the cost of a foundation by reducing its base area or by achieving a minimum volume of constituents. However, discrete reduction in these quantities might not necessarily represent the least cost. As an alternative, this article describes a simplified approach for the design of eccentrically loaded RC isolated footings that explicitly considers the structural requirements and economics simultaneously and hence results in a foundation with minimum cost. The developed approach is based on Excel solver, the objective of which is to provide a simplified procedure to reduce the construction cost through the simultaneous integration of design parameters and requirements as optimization variables and constraints, respectively. This design approach is illustrated in the latter part of the article along with the comparison of results between conventional and optimized designs using design examples available in the existing literature.
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Published In
Practice Periodical on Structural Design and Construction
Volume 23 • Issue 2 • May 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Jun 5, 2017
Accepted: Oct 25, 2017
Published online: Feb 2, 2018
Published in print: May 1, 2018
Discussion open until: Jul 2, 2018
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