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Experimental Evaluation and Parametric Study of Side Plate Steel Connection

Navab Lahijani, Saeid | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 55295 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Mohtasham Dolatshahi, Kiarash; Mirghaderi, Rasool
  7. Abstract:
  8. This study aims to parametric study and model steel joints with side plates. steel joints with continuum plates have been seismically acceptable for years, assuming they are designed to be stronger than beams. After the Northridge earthquake, the belief that the adequacy conditions of flexural frame joints were limited to stiffness and strength factors was challenged for two main reasons. First, at the junction of the beam with the column, high tension is created by the seismic force, and as a result, it buckles and loses its strength before reaching the projected force. The second problem is due to the problem of making such connections that it is difficult to weld. Therefore, the problem of the brittleness of the weld arises. Side-plate steel joints were proposed to solve these problems, which, unlike previous joints, remove forces from the side of the beam and transfer them to the column. As a result, this type of connection does not have the problem of buckling the face of the column and can meet the strength and flexibility that the designer expects from it. For the parametric study, the results of a full-scale laboratory test performed at the Iran Earthquake Research Institute were used. This test has been performed in four stages in the form of bolted and weld connections. In the first stage of this research, a validation is performed between the numerical and laboratory results of the model. Then, in the second stage, a parametric study is performed in which several subsets of different models are created and the effect of parameters such as the thickness of the side plate connection shells, column dimensions, beam dimensions, etc. on the connection behavior is investigated. Abaqus software is used to numerically model this connection.
  9. Keywords:
  10. Steel Structures ; Seismic Performance ; Experimental Evaluation ; Parametric Study ; ABAQUS Software ; Finite Element Method ; Side-Plate Steel Joints

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