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    Experimental Parameter Study of Two-Story Platform-Type CLT Shear Walls

    Source: Journal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 008::page 04024089-1
    Author:
    Mohammad Masroor
    ,
    Mahtab Gheisari
    ,
    Thomas Tannert
    DOI: 10.1061/JSENDH.STENG-13277
    Publisher: American Society of Civil Engineers
    Abstract: While numerous experimental tests have been conducted on single-story cross-laminated timber (CLT) shear walls, research addressing the drift performance of multistory CLT structures remains limited. This paper presents an experimental parameter study of the lateral performance of two-story platform-type CLT shear wall structures utilizing self-tapping screw connections. The test program consisted of six reversed cyclic tests investigating the impact of: (1) additional floor mass; (2) different angle bracket connections between floors; (3) different tension strap connections between floors; and (4) acoustic insulation layers on both sides of the first-level floor. The results showed that additional dead load increased the lateral resistance and that designing angle brackets to remain elastic limited the sliding contribution to total lateral deformations to less than 10%. The results also showed that the acoustic layer had minimal effect on the performance of the shear walls under the tested conditions. The tension straps significantly influenced the rocking performance, underscoring their importance to achieve similar story drifts in multistory CLT shear wall structures. Finally, while preceding single-story shear wall tests allowed designing the structures, hold-down uplifts on single-story tests were shown not to be representative for tension strap uplifts in multistory tests.
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      Experimental Parameter Study of Two-Story Platform-Type CLT Shear Walls

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4298210
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    • Journal of Structural Engineering

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    contributor authorMohammad Masroor
    contributor authorMahtab Gheisari
    contributor authorThomas Tannert
    date accessioned2024-12-24T10:03:13Z
    date available2024-12-24T10:03:13Z
    date copyright8/1/2024 12:00:00 AM
    date issued2024
    identifier otherJSENDH.STENG-13277.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4298210
    description abstractWhile numerous experimental tests have been conducted on single-story cross-laminated timber (CLT) shear walls, research addressing the drift performance of multistory CLT structures remains limited. This paper presents an experimental parameter study of the lateral performance of two-story platform-type CLT shear wall structures utilizing self-tapping screw connections. The test program consisted of six reversed cyclic tests investigating the impact of: (1) additional floor mass; (2) different angle bracket connections between floors; (3) different tension strap connections between floors; and (4) acoustic insulation layers on both sides of the first-level floor. The results showed that additional dead load increased the lateral resistance and that designing angle brackets to remain elastic limited the sliding contribution to total lateral deformations to less than 10%. The results also showed that the acoustic layer had minimal effect on the performance of the shear walls under the tested conditions. The tension straps significantly influenced the rocking performance, underscoring their importance to achieve similar story drifts in multistory CLT shear wall structures. Finally, while preceding single-story shear wall tests allowed designing the structures, hold-down uplifts on single-story tests were shown not to be representative for tension strap uplifts in multistory tests.
    publisherAmerican Society of Civil Engineers
    titleExperimental Parameter Study of Two-Story Platform-Type CLT Shear Walls
    typeJournal Article
    journal volume150
    journal issue8
    journal titleJournal of Structural Engineering
    identifier doi10.1061/JSENDH.STENG-13277
    journal fristpage04024089-1
    journal lastpage04024089-16
    page16
    treeJournal of Structural Engineering:;2024:;Volume ( 150 ):;issue: 008
    contenttypeFulltext
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