Simulated Seismic Load Tests on Prestressed Concrete Piles and Pile-Pile Cap Connections

摘要

align="left">The results of tests conducted in New Zealand on prestressed concrete piles and pile-pile cap connections subjected to simulated seismic loading are summarized. The piles were of prestressed? pretensioned concrete with a 400 mm (15. 7 in.) octagonal cross section and contained spiral reinforcement. The pile caps were of reinforced concrete. The range of pile-pile cap connection details tested? included piles with ends embedded in the cap either with or without the ends of the longitudinal steel exposed, and the use of longitudinal steel dowel bars. The test results showed that well detailed? prestressed concrete piles and pile-pile cap connections are capable of undergoing large post-elastic deformations without significant loss in strength when subjected to severe seismic loading.?