Various shape patterns are presented according to the connection types of members in the dome structures with space frame or space truss. Most dome structures have the braces for the reinforcement of structure. But, rib dome structures without braces show the simple member connections and member generation. So, rib dome structures need the braces for the additional stiffness and various shapes. In this study, the typical shapes of rib dome structure are generated and then cellular automata model of morphogenesis technique is applied for the braced reinforcement. Also, the optimal shape patterns are created by performing the stiffness and size optimization for the braced rib dome structures.