Dr. Nathalie Roy
Department of Civil Engineering, Université de Sherbrooke
Analysis of Concentrically Loaded Braced Frame Using Continuous End Plate
The purpose of this research is to examine the behaviour and design of continuous end-plate connections in concentrically braced frames. This type of connection is not explicitly addressed by the current design standards, thus resulting in designs that are often too conservative. Furthermore, although this connection is usually assumed conceptually to be pinned, the effect of the continuous end plate may qualify this type of connection as semi-rigid resulting in an actual load-resisting system behaviour different from the one originally assumed. Specific objectives of the experimental programme are to: i) compare the moment transfer capacity of a beam-gusset assembly connected to the column with a continuous end plate vs. one connected using independent double angle clips (Figure 1); ii) determine the influence of an all-around weld connecting the beam to the continuous end plate; iii) quantify the energy dissipation capacity of continuous end plate connections under cyclic loading; iv) analyze the rigidity of the connections.
The results of this research will lead to a better understanding of the connection component itself, as well as its influence on the overall structure and will ultimately enable the connection engineers to optimize their design (while potentially saving on material, and welding consumables).
This research is led by Dr. Nathalie Roy and is in collaboration with her colleagues Dr. Laboissiere and Dr. S. Parent.
Dr. Nathalie Roy is an Associate Professor of Structures in the Department of Civil Engineering at the Université de Sherbrooke. Her principal fields of interest are structural dynamics, earthquake engineering and bridges. She is an expert in large-scale testing of structural elements. She is a member of the Engineering and Earthquake Dynamics Research Center (CRGP) of the Université de Sherbrooke and of the Centre d’études interuniversitaire des structures sous charges extrêmes (CEISCE).