To promote the development of collaborative system bridges, a bridge type quadrant diagram is utilized in this study to build and validate multiple existing collaborative system bridges. Through the bridge type quadrant diagram, various new types of collaborative system bridges with different structures are built. The research indicates that collaborative system bridges are complex structures based on five basic bridge types. Using the bridge type quadrant diagram, various structural types of collaborative system bridges can be arranged and combined. Considering the characteristics of collaborative system bridges, a specific collaborative system bridge scheme is proposed to address mid-span deflection issues in large-span beam bridges. The bridge type quadrant diagram can be used to develop a simple and efficient method for the design and research of collaborative system bridges in the future.