Diaphragm Over-Strength Factors (Ψ)
and System Over-Strength Factor (Ωo)
Diaphragm over-strength factors recommended by PCI are
shown in Table 6.2.1. For additional discussion, see Section
4.8 of this handbook.
System over-strength factors as required by ASCE 7-05 are
shown in Table 6.2.2.
6.3 Connection Design Criteria
Precast concrete connections must meet a variety of design