A steel angle 100x75x10 is used as tension member with longer leg connected to a 10 mm gusset plate. The connection is made with the help of lug angle. If rivet diameter is 20mm, permissible shear and bending stresses in rivet are 100MPa and 300MPa respectively, what should be the nominal diameter?

These are the eight major typre of strutures that are studied in civil engineering:
1. Load-bearing structures
2. Truss structures
3. Frame structures
4. Cable and arch structures
5. Pre-engineered structures
6. Mass structures
7. Tensile structures
8. Composite structures