Engineering Commons^™

Excessive Strand End Slip In Prestressed Piles, Michael F. Petrou, Baolin Wan, Walter S. Joiner, Constantin G. Trezos, Kent A. Harries

Civil and Environmental Engineering Faculty Research and Publications

This paper presents the results of a research project that investigated excessive strand end slip observed recently in some prestressed piles. From measurements taken in the field, it is apparent that the problem o excessive initial strand slip is independent of pile shape and size. Strand end slip is evident in piles of different manufacturers in different states in the Southeast. Excessive strand end slip was found in both the top and bottom of the cross section of the piles, although the top portion of the cross section generally exhibited much higher initial slip. Several preventive measures can be adopted …