Field Testing Evaluating Carbon Cable Prestressed Plle

摘要

Corrosion is a major problem in prestressed piles with steel tendons for marine structures. The high tensile strength and high resistance to corrosion of carbon cables are more suitable to marine environment. SDSM&T developed a satisfactory anchorage system in 1987 for pretensioned prestressed concrete system. This anchorage was used in a bridge constructed in Rapid City, South Dakota in 1991. Twelve prestressed precast piles of 14 in. square and 45 ft. long were built using carbon prestressing cable. They were tested for their performance before making these piles in a prestressed concrete plant. These piles were designed to carry modem heavy cranes used by Navy. These piles were designed to carry modem heavy cranes used by Navy. These piles were part of the navy pier at Port Hueneme, California. These piles were tested in the field during erection and found to be satisfactory. This paper deals with the design, construction and erection of these piles.