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Evaluation of Gusset Plate Connection Stiffness in Braced Frames  

Yoo, Jung Han (대한주택공사 도시재생사업단)
Publication Information
Journal of Korean Society of Steel Construction / v.21, no.2, 2009 , pp. 105-113 More about this Journal
Abstract
To improve braced frame performance, the connection strength, stiffness, and ductility must be directly considered in the frame design. The resistance of the connection must be designed to resist seismic loads and to help provide the required system ductility. In addition, the connection stiffness affects the dynamic response and the deformation demands on the structural members and connections. In this paper, current design models for gusset plate connections are reviewed and evaluated usingthe results of past experiments. Current models are still not sufficient to provide adequate connection design guidelines and the actual stress and strain states in the gusset plate are very nonlinear and highly complex. Design engineers want simple models with beam and column elements to make an approximate estimation of system and connection performance. The simplified design models are developed and evaluated to predict connection stiffness and system behavior. These models produce reasonably accurate and reliable estimation of connection stiffness.
Keywords
stiffness; braced frame; gusset plate; finite element analysis; inelastic response;
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Times Cited By KSCI : 1  (Citation Analysis)
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