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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 43365 (09)
- University: Sharif University of Technology
- Department: Civil Engineering
- Advisor(s): Maleki, Shervin
- Abstract:
- Lateral forces on structures are transferred to braces as tensile and compressive loads. These loads enter the beams and columns through the gusset plates. The gusset connections to the beams and columns must be such that they be able to pass the loads through themselves. So far, five analytical models have been proposed for this connection and only one of them is recommended by AISC. These models estimate the existing forces and moments on the connection. The analytical models are: model 1 (KISS), model 2 (2A-AISC), model 3 (Thornton), model 4 (Ricker) and model 5 (Richard). Among these models, only model 3 is recommended by AISC because the others are more conservative. It should be noted that all the above models follow the static equilibrium and thus they are called equilibrium models. Among the above models, model 1 has simple calculations and it is use more considered by designers but it is the most conservative. Since the AISC recommended the model 3, past investigations have been performed on the results of this model and it is called the UFM afterwards. The results of all these studies caused some modificatios in this model so that its results match the real forces. In thie thesis, numerical finite element modeling of the gusset connection is compared with the UFM and the KISS methodes. The accuracy of the UFM is investigated by changing the connection parameters such as gusset size, beam size, column size,free gusset length, etc.
- Keywords:
- Steel Connection ; Braces ; Uniform Force Method ; Gusset Connection Model
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