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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 40009 (09)
- University: Sharif University of Technology
- Department: Civil Engineering
- Advisor(s): Mofid, Masood
- Abstract:
- In this thesis, the semi-hinged connections such as double-angle connections, which are welded to the beam web and bolted to the column flange, are investigated. In this study it's tried to establish the effect of clearance setback between beam end and column flange and/or web. When the beam rotates, it is desirable to avoid the bottom flange of the beam bearing against the column as this can induce large forces in the connection. The usual way of achieving this is to ensure that the connection extends at least a few millimeters beyond the end of the beam. For this purpose, several connections are designed and considered, based on two different shear capacities for the beam. For each connection, two different bolt gage distances and three values for clearance setback are analyzed. Analyses are performed to establish the moment–rotation relationship for this type of connection and the stress distribution of each specimen is observed. In this study, connections are subjected to shear loads. Material and geometric non-linearities, as well as contact and friction have also been implemented in the model. The model is validated through comparison with experimental data found in the literature. Finally, a formula is proposed to estimate the initial rotational stiffness of semi-hinged double-angle connections
- Keywords:
- Semirigid Connection ; Finite Element Method ; Moment-Rotation Curve ; Semi-Hinged Connection ; Connection Clearance Setback
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