1810.3.4 Allowable uplift load.
BC § 1810.3.4
Where required by the design, the allowable uplift load for a single deep foundation shall be determined in accordance with accepted engineering practices based on a minimum factor of safety of three or by uplift load tests performed in accordance with Section 1810.4.2.1. Where uplift load tests are performed, the maximum allowable uplift load shall not exceed the ultimate load capacity divided by a factor of safety of two. The allowable uplift load for a deep foundation group shall not exceed the sum of the allowable uplift loads of the individual deep foundations in the group, nor the uplift capacity calculating the group action of the deep foundation in accordance with accepted engineering practice where the calculated ultimate group capacity is divided by a safety factor of 2.5.
