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    Method to Improve Seismic Performance of RC Moment-Resisting Frames Using Geometric Optimization

    Source: Journal of Computing in Civil Engineering:;2016:;Volume ( 030 ):;issue: 003
    Author:
    Orlando Arroyo
    ,
    Víctor Prieto
    ,
    Sergio Gutiérrez
    DOI: 10.1061/(ASCE)CP.1943-5487.0000529
    Publisher: American Society of Civil Engineers
    Abstract: This article presents an optimization method to determine the column dimensions that maximize the fundamental frequency of a building, which translates into a highly efficient computational algorithm for approximately solving this optimization problem. A thoroughly detailed example is provided for a 10-story building whose elastic behavior is analyzed using a three-dimensional model, employing a two-dimensional fiber model to assess its inelastic performance. The results show that, compared with the classical design, which has columns of uniform depth, the maximum elastic drift is reduced by 10% and that the drift demand decreases on the lower stories of the building. In addition, the overstrength of the structure and its ductility are increased by between 10 and 30%. Similar improvements are also observed in a second example for a five-story building, showing that the method is useful at least for midrise buildings.
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      Method to Improve Seismic Performance of RC Moment-Resisting Frames Using Geometric Optimization

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    contributor authorOrlando Arroyo
    contributor authorVíctor Prieto
    contributor authorSergio Gutiérrez
    date accessioned2017-12-30T13:05:17Z
    date available2017-12-30T13:05:17Z
    date issued2016
    identifier other%28ASCE%29CP.1943-5487.0000529.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4245488
    description abstractThis article presents an optimization method to determine the column dimensions that maximize the fundamental frequency of a building, which translates into a highly efficient computational algorithm for approximately solving this optimization problem. A thoroughly detailed example is provided for a 10-story building whose elastic behavior is analyzed using a three-dimensional model, employing a two-dimensional fiber model to assess its inelastic performance. The results show that, compared with the classical design, which has columns of uniform depth, the maximum elastic drift is reduced by 10% and that the drift demand decreases on the lower stories of the building. In addition, the overstrength of the structure and its ductility are increased by between 10 and 30%. Similar improvements are also observed in a second example for a five-story building, showing that the method is useful at least for midrise buildings.
    publisherAmerican Society of Civil Engineers
    titleMethod to Improve Seismic Performance of RC Moment-Resisting Frames Using Geometric Optimization
    typeJournal Paper
    journal volume30
    journal issue3
    journal titleJournal of Computing in Civil Engineering
    identifier doi10.1061/(ASCE)CP.1943-5487.0000529
    page04015046
    treeJournal of Computing in Civil Engineering:;2016:;Volume ( 030 ):;issue: 003
    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
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