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Moment-Rotation Curves for Shear Tab Connections Using Finite Element Modeling and Experimental Data

Schroeder, John M.

Abstract Details

2012, MS, University of Cincinnati, Engineering and Applied Science: Civil Engineering.

This thesis presents the results of research into using finite element modeling software to create moment-rotation curves for "simple" gravity connections. In current design practice, the rotational stiffness of gravity connections is ignored to ease calculations and due to limited availability of data on the response of gravity connections to rotational demands. Research is presented that shows when the rotational stiffness of these connections is added to the lateral load resisting system, the building response to seismic effects is improved, with smaller associated story drifts and decreases to the moments experienced in the moment frames and in the gravity beams

In an effort to increase the amount of data on the rotational stiffness of gravity connections available to researchers, this thesis presents the design of two theoretical shear tab connections. The finite element modeling software ABAQUS is used to create moment-rotation curves for these theoretical connections. To demonstrate finite element modeling's ability to accurately predict the response of the theoretical connections, the results of several experiments performed on shear tab connections are reproduced in ABAQUS.

The finite element modeling of the experimental shear tab connections shows that this type of modeling is able to reproduce connection specific events such as bolt slippage, beam-column bearing, and shear tab failure. Additional research is presented indicating finite element modeling's ability to predict net section fracture and block shear rupture of connection components.

Lastly, steps taken to create the finite element models of the theoretical shear tab connections are presented along with the final moment-rotation curves for the connections.

Gian Rassati, PhD (Committee Chair)
Thomas Baseheart, PhD (Committee Member)
James Swanson, PhD (Committee Member)
142 p.

Recommended Citations

Citations

  • Schroeder, J. M. (2012). Moment-Rotation Curves for Shear Tab Connections Using Finite Element Modeling and Experimental Data [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337954722

    APA Style (7th edition)

  • Schroeder, John. Moment-Rotation Curves for Shear Tab Connections Using Finite Element Modeling and Experimental Data. 2012. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337954722.

    MLA Style (8th edition)

  • Schroeder, John. "Moment-Rotation Curves for Shear Tab Connections Using Finite Element Modeling and Experimental Data." Master's thesis, University of Cincinnati, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337954722

    Chicago Manual of Style (17th edition)