• Login
    View Item 
    •   DSpace Home
    • AUS Theses & Dissertations
    • Masters Theses
    • View Item
    •   DSpace Home
    • AUS Theses & Dissertations
    • Masters Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Nonlinear FEA of Soil-Structure-Interaction Effects on RC Shear-Wall Structures

    View/ Open
    35.232-2018.15 Dina Saadi.pdf (5.130Mb)
    35.232-2018.15 Dina Saadi_Compressed.pdf (3.432Mb)
    Date
    2018-05
    Author
    Saadi, Dina
    Advisor(s)
    AlHamaydeh, Mohammad
    Markou, George
    Type
    Thesis
    Metadata
    Show full item record
    Description
    A Master of Science thesis in Civil Engineering by Dina Saadi entitled, “Nonlinear FEA of Soil-Structure-Interaction Effects on RC Shear-Wall Structures”, submitted in May 2018. Thesis advisor is Dr. Mohammad AlHamaydeh and thesis co-advisor is Dr. George Markou. Soft and hard copy available.
    Abstract
    Considering Soil-Structure-Interaction (SSI) is essential when evaluating the structural system’s response as it can unveil behaviors that are otherwise not accounted for in fixed-base (FB) systems. Nonlinear Finite Element Analysis (NFEA) is performed on a six-story Reinforced Concrete (RC) shear wall structure to investigate SSI effects. The soil medium in consideration represents site class E soil type in accordance to ASCE7-10 standards. The structural elements including the RC wall, slabs, foundation, and soil continuum are modeled using 3D solid hexahedral elements. Additionally, to further enhance accuracy to the modeling, all steel reinforcement including longitudinal and transverse rebars are modeled as embedded bars within the brick elements. The smeared crack approach is utilized for optimal computational efficiency. Four types of RC walls that differ in reinforcement detailing for varying seismicity design levels are explored. The representative structures are loaded with their tributary gravity loads applied to the corresponding slabs. Lateral load effects are imposed onto the structures through displacement-controlled monotonic as well as cyclic pseudo-static protocols. The systems’ responses from the SSI and FB systems are compared through pushover and hysteretic curves (lateral force versus lateral drift), strain/stress contours, as well as interpretive response quantities such as characteristic stiffnesses and energy dissipation. It was found that all SSI models exhibit higher lateral displacements ranging from an additional 34% to 85%, lesser force demands within the superstructure by around 10%, and higher levels of energy dissipation (on an average of 25%) due to soil compressibility. Furthermore, all FB models experienced higher strain concentrations at the bottom region of the shear walls. Thus, it was found that wall shear reinforcement can be reduced by accounting for SSI effects. Lastly, the reinforcement detailing (special versus ordinary) had a noticeable effect on enhancing the system’s performance.
    DSpace URI
    http://hdl.handle.net/11073/16206
    Collections
    • Masters Theses

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsCollege/DeptArchive ReferenceSeriesThis CollectionBy Issue DateAuthorsTitlesSubjectsCollege/DeptArchive ReferenceSeries

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    DSpace software copyright © 2002-2016  DuraSpace
    Submission Policies | Terms of Use | Takedown Policy | Privacy Policy | About Us | Contact Us | Send Feedback

    Return to AUS
    Theme by 
    Atmire NV