Figure 2 shows the cross section, reinforcement, and
prestressing for each specimen. Specimens had fifty-two
0.6 in. (15 mm) diameter prestressing strands in the bottom
flange and four 3⁄8 in. (10 mm) diameter strands in the top
flange. Strands in specimens CT, PT, and LB were fully
bonded, whereas 45% of the strands in SL were partially
shielded. Shielding in SL intentionally violated the 25%
limit from LRFD specifications section 5.11.4.3 and was
designed to test the effects of excessive shielding on endregion
cracking and shear capacity.