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Investigation and Modeling of a New type of Semi-Rigid, Steel Beam-Column Connection under Monotonic Loading

Taheri, Ehsan | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44371 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Mofid, Massoud
  7. Abstract:
  8. This thesis presents the investigation and development of a Finite Element Model (FEM) for a new type of Beam-Column Semi-Rigid steel connection. One of the main parts of this connection is a steel T profile inserted on top of a beam connecting it to a column by bolts. It seems that changes in the geometry of the T profile and its bolt positions can have a great influence on the rigidity or flexibility of the connection. Therefore, meaningful categories of the T profile geometry with different bolt positions have been modeled and analyzed by means of a Finite Element Modeling software ABAQUS, and their moment-rotation curves were driven. Also the Initial and Nonlinear Stiffness and the Ultimate Moment of the connection is specified and the Bi-Linear Moment-Rotation curves are determined using analytical and structural theories and the results are compared with the software modeling results for the connection. The results show that this connection fulfills a wide range of functions from rigid to hinge by altering the size and geometry of the beam, column and the T profile. In the end, some changes in order to alter the function of the connection are suggested and models based on them are analyzed and some new ideas are proposed
  9. Keywords:
  10. Steel Connection ; Semirigid Connection ; Beam Wall Connection ; Finite Element Method ; Moment-Rotation Curve ; Initial Stiffness

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