Title:
Shear Database for Prestressed Concrete Members
Author(s):
Eisuke Nakamura, Alejandro R. Avendaño, and Oguzhan Bayrak
Publication:
Structural Journal
Volume:
110
Issue:
6
Appears on pages(s):
909-918
Keywords:
prestressed concrete; shear database; shear design procedure; shear strength
DOI:
10.14359/51686147
Date:
11/1/2013
Abstract:
The University of Texas Prestressed Concrete Shear Database (UTPCSDB) was developed and expanded to include 1696 tests reported in North America, Japan, and Europe from 1954 to 2010. The UTPCSDB was subsequently used to examine the accuracy and conservativeness of shear design procedures based on different rationales. The results of the examination revealed that design expressions based on the Modified Compression Field Theory (MCFT) yielded the most accurate shear strength estimations for prestressed concrete members that failed in typical shear failure modes. Most of the unconservative estimations that resulted from the use of the MCFT-based design expressions were observed in specimens that failed in shear but exhibited signs of horizontal shear damage or anchorage zone distress. Although the ACI 318-11 detailed method provided slightly less-conservative estimations than the MCFT-based design expressions, these estimations were more accurate than those obtained by using other empirical shear design equations.