Rigid structure for spherical construction, has equilateral and isosceles triangles assembled by fixing crests, and two segment groups, where ends of one segment group are different from ends of other segment

摘要

The structure has 20 equilateral triangles and 60 isosceles triangles assembled by fixing crests. 12 crests of type S5 regroup 5 isosceles triangles and 30 crests of type S6 regroup 2 equilateral triangles and 4 isosceles triangles. Two segment groups (C1,C2), each of 60 segments, are provided, where two ends of each segment are identical between them and the ends of C1 are different from the ends of C2.