Examination of Gusset Plate Modeling via Nonlinear Dynamic Analysis.

Autor: Gül, Hakkı Deniz, Taşkın, Kıvanç
Zdroj: International Journal of Steel Structures; Apr2023, Vol. 23 Issue 2, p449-457, 9p
Abstrakt: The connection of the braces of special concentrically braced steel frames to the adjoining frames is usually modeled as a pin connection in practice. However, in the actual case, stiff gusset plates settle in brace-ends to provide the connection of brace elements to the structural system. In this study, gusset plates are modeled as the semi-rigid and pin connection to investigate the modeling effects on the structural responses on both member and global levels. The finite element model of a single brace element is calibrated according to previous experimental work to provide reliable analytical work. The two analytical steel frame models of a fictitious office building are created to perform the nonlinear response history analysis. Analysis results showed that the pin connection assumption for the brace-ends could not reflect the buckling behavior of the brace member with sufficient accuracy. Gusset plates should be designed as a structural element, and their mechanical properties should be implemented into the analytical model to accurately simulate the buckling and the post-buckling behavior of brace members. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index