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Optimization of Eccentrically Loaded Reinforced-Concrete Isolated Footings
AbstractFooting 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 approac...
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Published in: | Practice periodical on structural design and construction 2018-05, Vol.23 (2) |
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description | AbstractFooting 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. |
doi_str_mv | 10.1061/(ASCE)SC.1943-5576.0000366 |
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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. 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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.</description><subject>Construction costs</subject><subject>Design optimization</subject><subject>Design parameters</subject><subject>Design standards</subject><subject>Economics</subject><subject>Minimum cost</subject><subject>Reinforced concrete</subject><subject>Technical Notes</subject><issn>1084-0680</issn><issn>1943-5576</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kE9Lw0AQxRdRsFa_Q9CLHlJnks3-8VZCq5VCwep52W42ktJm6-72UD-9CS3ixbnMMPPeG_gRcoswQmD4eD9elpOHZTlCSfO0KDgbQVc5Y2dk8Ls772YQNAUm4JJchbAGQMqBDcjrYhebbfOtY-PaxNXJxBjbRt8YvdkckrnTla2SN9u0tfPGVmnpWuNttMksuI2O3XHqXGzaz3BNLmq9Cfbm1IfkYzp5L1_S-eJ5Vo7nqc4FxJStpOSSFxRBojDCZpxqYaTUq0wgXdUFM6hpYbhBhrSWICqW5RyQ6cygyYfk7pi78-5rb0NUa7f3bfdSoZQUkCOXnerpqDLeheBtrXa-2Wp_UAiqZ6dUz04tS9VzUj0ndWLXmdnRrIOxf-JPzv-NPxItcgE</recordid><startdate>20180501</startdate><enddate>20180501</enddate><creator>Rawat, Sanket</creator><creator>Kant Mittal, Ravi</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20180501</creationdate><title>Optimization of Eccentrically Loaded Reinforced-Concrete Isolated Footings</title><author>Rawat, Sanket ; Kant Mittal, Ravi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a380t-6b997975410918c8e274a8c99ab2814bf56c1a45c7c1614f908d6237016a2c1c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Construction costs</topic><topic>Design optimization</topic><topic>Design parameters</topic><topic>Design standards</topic><topic>Economics</topic><topic>Minimum cost</topic><topic>Reinforced concrete</topic><topic>Technical Notes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rawat, Sanket</creatorcontrib><creatorcontrib>Kant Mittal, Ravi</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Practice periodical on structural design and construction</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rawat, Sanket</au><au>Kant Mittal, Ravi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimization of Eccentrically Loaded Reinforced-Concrete Isolated Footings</atitle><jtitle>Practice periodical on structural design and construction</jtitle><date>2018-05-01</date><risdate>2018</risdate><volume>23</volume><issue>2</issue><issn>1084-0680</issn><eissn>1943-5576</eissn><abstract>AbstractFooting 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. 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subjects | Construction costs Design optimization Design parameters Design standards Economics Minimum cost Reinforced concrete Technical Notes |
title | Optimization of Eccentrically Loaded Reinforced-Concrete Isolated Footings |
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