My suggestions are as under:
1. Some research has already been done and more is being carried out on various aspects of beam-column joints, both nationally as well as internationally. Searching the internet for the research papers on beam-column joints, might give you some new idea to include in your FYP.
2. You may propose the use of fiber reinforced polymers (FRP) composites for retrofit purpose in your FYP. Although very efficient for seismic retrofit, these are costly materials. Since these are imported materials. Therefore, you will have to check their availability locally, before proposing their use in your project.
Regards.