YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • Journal of Bridge Engineering
    • View Item
    •   YE&T Library
    • ASCE
    • Journal of Bridge Engineering
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Improving Seismic Behavior of Existing Multicolumn RC Bridge Bents Using Low-Damage Retrofit Strategy

    Source: Journal of Bridge Engineering:;2021:;Volume ( 026 ):;issue: 003::page 04021006-1
    Author:
    Mohammad Jafarkarimi
    ,
    Mohammad Khanmohammadi
    DOI: 10.1061/(ASCE)BE.1943-5592.0001684
    Publisher: ASCE
    Abstract: Implementing a low-damage design (LDD) approach to improve the seismic behavior of existing RC bridge bents as a retrofit strategy is the main focus of the present study. Experimental and numerical studies were carried out on two 1/4-scale multicolumn RC bridge bents, which had been built based on conventional practice. The LDD approach was implemented by cutting the longitudinal rebars of the columns at both ends to allow rocking, adding unbonded post-tensioned tendons to supply self-centering, and adding two different external devices [buckling-restrained bars and reduced angle sections (RASs)] to provide energy dissipation. Cyclic reversal loading tests were conducted, and the results were compared with a reference nonretrofitted specimen, which was representative of the conventional semiductile design. Nonlinear time-history analyses were performed on calibrated numerical models to study the displacement demands of specimens at design basis earthquake (DBE) and maximum considered earthquake (MCE) events, both far- and near-field. The results showed that the low-damage retrofitted specimens have a better postearthquake condition compared to the reference specimen, particularly in terms of residual drift and damage. The LDD specimens successfully passed the DBE and MCE demands without experiencing failure of cables or dissipation devices.
    • Download: (3.955Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Improving Seismic Behavior of Existing Multicolumn RC Bridge Bents Using Low-Damage Retrofit Strategy

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4270024
    Collections
    • Journal of Bridge Engineering

    Show full item record

    contributor authorMohammad Jafarkarimi
    contributor authorMohammad Khanmohammadi
    date accessioned2022-01-31T23:36:11Z
    date available2022-01-31T23:36:11Z
    date issued3/1/2021
    identifier other%28ASCE%29BE.1943-5592.0001684.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4270024
    description abstractImplementing a low-damage design (LDD) approach to improve the seismic behavior of existing RC bridge bents as a retrofit strategy is the main focus of the present study. Experimental and numerical studies were carried out on two 1/4-scale multicolumn RC bridge bents, which had been built based on conventional practice. The LDD approach was implemented by cutting the longitudinal rebars of the columns at both ends to allow rocking, adding unbonded post-tensioned tendons to supply self-centering, and adding two different external devices [buckling-restrained bars and reduced angle sections (RASs)] to provide energy dissipation. Cyclic reversal loading tests were conducted, and the results were compared with a reference nonretrofitted specimen, which was representative of the conventional semiductile design. Nonlinear time-history analyses were performed on calibrated numerical models to study the displacement demands of specimens at design basis earthquake (DBE) and maximum considered earthquake (MCE) events, both far- and near-field. The results showed that the low-damage retrofitted specimens have a better postearthquake condition compared to the reference specimen, particularly in terms of residual drift and damage. The LDD specimens successfully passed the DBE and MCE demands without experiencing failure of cables or dissipation devices.
    publisherASCE
    titleImproving Seismic Behavior of Existing Multicolumn RC Bridge Bents Using Low-Damage Retrofit Strategy
    typeJournal Paper
    journal volume26
    journal issue3
    journal titleJournal of Bridge Engineering
    identifier doi10.1061/(ASCE)BE.1943-5592.0001684
    journal fristpage04021006-1
    journal lastpage04021006-17
    page17
    treeJournal of Bridge Engineering:;2021:;Volume ( 026 ):;issue: 003
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian