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    Optimization of Elevated Concrete Foundations for Vibrating Machines

    Source: Journal of Structural Engineering:;2002:;Volume ( 128 ):;issue: 011
    Author:
    Marcelo A. Silva
    ,
    Jasbir S. Arora
    ,
    Colby C. Swan
    ,
    Reyolando M. L. R. F. Brasil
    DOI: 10.1061/(ASCE)0733-9445(2002)128:11(1470)
    Publisher: American Society of Civil Engineers
    Abstract: The objective of this study is to describe a problem formulation and an optimization procedure for the design of elevated reinforced concrete foundations for vibrating machines. Special emphasis is placed on structures composed of footings, beams, and columns. The dimensions of the structure and its reinforcement are the design variables for the optimization problem. The objective function consists of costs of the concrete, the steel, the form, and the propping form. Constraints related to material and soil failure, as well as geometrical limits and human comfort are imposed. A new failure surface for columns and beams subjected to biaxial bending and axial loads is defined and used in the formulation. The main motivation of using the new failure surface is to save a large amount of computational effort in the solution of this dynamic response optimization problem. The problem of minimizing the structural cost while satisfying the operating and safety requirements is solved using an augmented Lagrangian method. A large number of constraints (time dependent and time independent) is treated without any difficulty in the method. The numerical methods used in the solution process are described. Optimal solutions for an example problem are obtained and discussed.
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      Optimization of Elevated Concrete Foundations for Vibrating Machines

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    http://yetl.yabesh.ir/yetl1/handle/yetl/33740
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    • Journal of Structural Engineering

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    contributor authorMarcelo A. Silva
    contributor authorJasbir S. Arora
    contributor authorColby C. Swan
    contributor authorReyolando M. L. R. F. Brasil
    date accessioned2017-05-08T20:58:13Z
    date available2017-05-08T20:58:13Z
    date copyrightNovember 2002
    date issued2002
    identifier other%28asce%290733-9445%282002%29128%3A11%281470%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/33740
    description abstractThe objective of this study is to describe a problem formulation and an optimization procedure for the design of elevated reinforced concrete foundations for vibrating machines. Special emphasis is placed on structures composed of footings, beams, and columns. The dimensions of the structure and its reinforcement are the design variables for the optimization problem. The objective function consists of costs of the concrete, the steel, the form, and the propping form. Constraints related to material and soil failure, as well as geometrical limits and human comfort are imposed. A new failure surface for columns and beams subjected to biaxial bending and axial loads is defined and used in the formulation. The main motivation of using the new failure surface is to save a large amount of computational effort in the solution of this dynamic response optimization problem. The problem of minimizing the structural cost while satisfying the operating and safety requirements is solved using an augmented Lagrangian method. A large number of constraints (time dependent and time independent) is treated without any difficulty in the method. The numerical methods used in the solution process are described. Optimal solutions for an example problem are obtained and discussed.
    publisherAmerican Society of Civil Engineers
    titleOptimization of Elevated Concrete Foundations for Vibrating Machines
    typeJournal Paper
    journal volume128
    journal issue11
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(2002)128:11(1470)
    treeJournal of Structural Engineering:;2002:;Volume ( 128 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian