1. Stress at ultimate in unbonded post-tensioning tendons: part 1 — evaluation of the state of the art;Naaman;ACI Structural Journal,1991
2. Flexural strength of externally prestressed concrete bridges;Aparicio;ACI Structural Journal,1996
3. Ramirez G, Breen J, et al., Shear strength of segmental structures. In: Proceedings of the Workshop AFPC External Prestressing in Structures, 1993:287–96.
4. Model code 1990,1991
5. Building code requirements for reinforced concrete (ACI 318-89) (Revised 1992),1992