SHRP-A-379 traducir

9.2.2 Calculate the average vertical and horizontal displacements with time using the
trimmed mean approach. In other words, the highest and lowest normalized deformation
readings in the vertical and horizontal directions are excluded from calculating the average
values. The highest and lowest readings are identified by comparing the deformations
between 460 and 540 seconds of loading time. For each of these specimens at one
temperature, a normalized vertical and horizontal displacement with time is calculated.
9.2.3 Calculate the average ratio between the horizontal and vertical readings with
time, which is related to Poisson's ratio, v.
specimen.
9.2.4 Calculate the corrected tensile and compressive stresses in the center of the
Ox = 11;tavg 2Pavg O avgj]Cox
6 Pavg ] Coy
= ;.v-, oh,,]
where
C_, C_y = Correction factors for the horizontal and vertical stresses,
respectively, from table 1.
9.2.5 Calculate the revised Poisson's ratio, v*
1.093 CBx I
V* =
1.093 CBx ]
o,- o,
where
CBr, CBx = Correction factors for bulging in the vertical and horizontal
directions, respectively, from table 2
9.2.6 Subtract the initial _,from the revised v*
E -- v* - v
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