Title:
Prestress Loss Database for Pretensioned Concrete Members
Author(s):
David B. Garber, José M. Gallardo, Dean J. Deschenes, and Oguzhan Bayrak
Publication:
Structural Journal
Volume:
113
Issue:
2
Appears on pages(s):
313-324
Keywords:
database evaluation; prestress loss; prestressed bridge girder; pretensioned concrete
DOI:
10.14359/51688618
Date:
3/1/2016
Abstract:
A comprehensive experimental database containing 237 specimens from 27 different research studies was assembled during a larger research effort undertaken at the University of Texas at Austin to investigate three different short-term loss and four different longterm loss estimation procedures. The assembled database was filtered to eliminate specimens with incomplete information or those not adequately representing those found in the field (as a result of either being too small or overstressed at release). The specimens contained within this filtered database offered a diversity of characteristics well representative of beams found in bridges. This database was used to evaluate several different short- and longterm loss estimation procedures. The results of these evaluations can help to aid the designer in selection of an appropriate procedure for estimating prestress loss.
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