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    Behavior of Axially and Eccentrically Loaded Trapezoidal Shell Footings Resting on a Granular Assembly

    Source: International Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 008::page 04022119
    Author:
    Sohrab Sharifi
    ,
    Saeed Abrishami
    ,
    Daniel Dias
    ,
    Pooya Dastpak
    DOI: 10.1061/(ASCE)GM.1943-5622.0002442
    Publisher: ASCE
    Abstract: The objective of this paper is to investigate the behavior of strip shell footings subjected to axial and eccentric loads resting on a cylindrical steel rods assembly that simulates granular soil. An image processing analysis called particle image velocimetry (PIV) is used to obtain the displacement field around the footings. The bearing capacity and ultimate settlements of the footings are presented that show a linear variation with respect to the footing peak angle. The efficiency of eccentrically loaded shell footings is also discussed using settlement and rotation factors. Shell footings are proven to demonstrate better performance under eccentric loading in terms of settlement compared with axial loading cases, while a better performance is found at low eccentricities in terms of rotation. The PIV analysis provided the opportunity for a deeper comprehension of ground wedges beneath the footing and a comparison of results with analytical methods that validated the experimental results. Eventually, an eccentricity factor is proposed for the upper-bound solution to make it applicable for nonaxial loading cases.
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      Behavior of Axially and Eccentrically Loaded Trapezoidal Shell Footings Resting on a Granular Assembly

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4286302
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    • International Journal of Geomechanics

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    contributor authorSohrab Sharifi
    contributor authorSaeed Abrishami
    contributor authorDaniel Dias
    contributor authorPooya Dastpak
    date accessioned2022-08-18T12:15:39Z
    date available2022-08-18T12:15:39Z
    date issued2022/06/01
    identifier other%28ASCE%29GM.1943-5622.0002442.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4286302
    description abstractThe objective of this paper is to investigate the behavior of strip shell footings subjected to axial and eccentric loads resting on a cylindrical steel rods assembly that simulates granular soil. An image processing analysis called particle image velocimetry (PIV) is used to obtain the displacement field around the footings. The bearing capacity and ultimate settlements of the footings are presented that show a linear variation with respect to the footing peak angle. The efficiency of eccentrically loaded shell footings is also discussed using settlement and rotation factors. Shell footings are proven to demonstrate better performance under eccentric loading in terms of settlement compared with axial loading cases, while a better performance is found at low eccentricities in terms of rotation. The PIV analysis provided the opportunity for a deeper comprehension of ground wedges beneath the footing and a comparison of results with analytical methods that validated the experimental results. Eventually, an eccentricity factor is proposed for the upper-bound solution to make it applicable for nonaxial loading cases.
    publisherASCE
    titleBehavior of Axially and Eccentrically Loaded Trapezoidal Shell Footings Resting on a Granular Assembly
    typeJournal Article
    journal volume22
    journal issue8
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0002442
    journal fristpage04022119
    journal lastpage04022119-12
    page12
    treeInternational Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 008
    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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