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Investigation on the Stability of Noncompact and Slender Concrete Filled Tubes Subjected to Axial Loads

Damaraju, Avinash Sharma
http://rave.ohiolink.edu/etdc/view?acc_num=ucin151179557053975

Abstract Details

2017, MS, University of Cincinnati, Engineering and Applied Science: Civil Engineering.
A concrete filled steel tube (CFT) is a hollow steel tube which is filled with concrete. CFTs are categorized as compact, noncompact and slender sections. The objective of this study is to evaluate the accuracy of the load transfer equations provided in AISC 360-16 for slender CFTs when the load is applied on steel. This study involves obtaining the required information, developing the finite element models of CFTs, validating the models and modeling the load transfer between steel and concrete. Previous experimental studies are reviewed and the finite element models are developed and validated by benchmarking with the experiments. The load transfer between steel and concrete is modeled using the cohesive bond behavior. From this investigation, it can be concluded that the load transfer between steel and concrete cannot be modeled accurately due to the lack of experimental data for the bond strength and plastic behavior of the bond between steel and concrete. Experimental tests to find the cohesive bond parameters in the model should be conducted and those parameters should be used to model the load transfer between steel and concrete. The CFT models with accurate load transfer behavior can then be used to evaluate the accuracy of the load transfer equations when the load is applied on steel for slender filled composite members provided in AISC 360-16.
Gian Rassati, Ph.D. (Committee Chair)
Thomas M. Burns, Ph.D. (Committee Member)
James Swanson, Ph.D. (Committee Member)
59 p.
Civil Engineering
concrete filled tubes; slender; noncompact; load transfer

Recommended Citations

Citations

  • Damaraju, A. S. (2017). Investigation on the Stability of Noncompact and Slender Concrete Filled Tubes Subjected to Axial Loads [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin151179557053975

    APA Style (7th edition)

  • Damaraju, Avinash Sharma. Investigation on the Stability of Noncompact and Slender Concrete Filled Tubes Subjected to Axial Loads. 2017. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin151179557053975.

    MLA Style (8th edition)

  • Damaraju, Avinash Sharma. "Investigation on the Stability of Noncompact and Slender Concrete Filled Tubes Subjected to Axial Loads." Master's thesis, University of Cincinnati, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin151179557053975

    Chicago Manual of Style (17th edition)

ucin151179557053975
286
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This open access ETD is published by University of Cincinnati and OhioLINK.