University of Canterbury Home
    • Admin
    UC Research Repository
    UC Library
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    1. UC Home
    2. Library
    3. UC Research Repository
    4. College of Engineering
    5. Engineering: Working Papers
    6. View Item
    1. UC Home
    2.  > 
    3. Library
    4.  > 
    5. UC Research Repository
    6.  > 
    7. College of Engineering
    8.  > 
    9. Engineering: Working Papers
    10.  > 
    11. View Item

    A structural reliability framework for collapse risk assessment incorporating ground motion duration and response spectral shape (2015)

    Thumbnail
    View/Open
    Published version (1.961Mb)
    Type of Content
    Discussion / Working Papers
    UC Permalink
    http://hdl.handle.net/10092/15361
    
    Collections
    • Engineering: Working Papers [27]
    Authors
    Chandramohan Rshow all
    Abstract

    A structural reliability framework is developed to post-process the results of an incremental dynamic analysis (IDA) and compute a hazard-consistent collapse fragility curve. The ability to produce hazard-consistent collapse risk estimates eliminates a major drawback in the IDA procedure and brings its capabilities on par with multiple stripe analysis (MSA). The proposed framework uses two secondary ground motion intensity measures: SₐRatio which is used to quantify response spectral shape and 5- 75% significant duration (Ds₅₋₇₅). Both SₐRatio and Ds₅₋₇₅ are demonstrated to be efficient predictors of a ground motion’s collapse intensity, which is a measure of its potential to cause structural collapse. In the case of the ductile eight-story reinforced concrete moment frame building analyzed in this study, they are capable of explaining 81% of the variance in the ground motion collapse intensities. The collapse fragility curve estimated using this framework is found to compare well to the fragility curve obtained by conducting MSA using hazard-consistent ground motions. MSA is shown to represent a simulation-based approach to solve the same structural reliability problem. Finally, optimal ground motion selection strategies to produce accurate collapse risk estimates are proposed.

    Citation
    Chandramohan R (2015). A structural reliability framework for collapse risk assessment incorporating ground motion duration and response spectral shape. Earthquake Engineering Research Institute Graduate Student Paper Competition.
    This citation is automatically generated and may be unreliable. Use as a guide only.
    ANZSRC Fields of Research
    40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
    40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
    Advanced Search

    Browse

    All of the RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThesis DisciplineThis CollectionBy Issue DateAuthorsTitlesSubjectsThesis Discipline

    Statistics

    View Usage Statistics
    • SUBMISSIONS
    • Research Outputs
    • UC Theses
    • CONTACTS
    • Send Feedback
    • +64 3 369 3853
    • ucresearchrepository@canterbury.ac.nz
    • ABOUT
    • UC Research Repository Guide
    • Copyright and Disclaimer
    • SUBMISSIONS
    • Research Outputs
    • UC Theses
    • CONTACTS
    • Send Feedback
    • +64 3 369 3853
    • ucresearchrepository@canterbury.ac.nz
    • ABOUT
    • UC Research Repository Guide
    • Copyright and Disclaimer