DEEP FOUNDATIONS

1810.3.8.2.1 Minimum reinforcement. Longitudinal Reinforcement shall consist of at least four bars with a minimum longitudinal reinforcement ratio of 0.008. 1810.3.8.2.2 Seismic reinforcement in Seismic Design Categories C through F. For structures assigned to Seismic Design Category C, D, E or F, precast non-prestressed piles shall be reinforced as specified in this section. The minimum longitudinal reinforcement ratio shall be 0.01 throughout the length. Transverse reinforcement shall consist of closed ties or spirals with a minimum 3/8 inch (9.5 mm) diameter. The spiral ratio made with wire 6.0 mm or bigger in diameter is accepted for spiral reinforcement in prefabricated concrete piles of 12 inches or less in diameter. Spacing of transverse reinforcement shall not exceed the smaller of eight times the diameter of the smallest longitudinal bar or 6 inches (152 mm) within a distance of three times the least pile dimension from the bottom of the pile cap. Spacing of transverse reinforcement shall not exceed 6 inches (152 mm) throughout the remainder of the pile. CHAPTER 19 - CONCRETE No amendments. CHAPTER 20 - ALUMINUM No amendments. CHAPTER 21 - MASONRY No amendments. CHAPTER 22 - STEEL No amendments. 146 CHAPTER 23 - WOOD