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Abstract: Eight new
large-scale tests of reinforced concrete structural walls with highly confined boundary
elements, conducted at Michigan State University (MSU), demonstrate that the bond stress
flexure-shear model for assessing Lpr, Lp and displacement, developed by Hines et al.,
may be extended to concrete strengths up to 20 ksi and monotonic loading. Improving the
model of strain penetra... read moretion to account for the laterally post-tensioned footings used by
the MSU tests doubles the accuracy of the prediction of Lp. Modifying the experimental
calculation of Lp to account for particularities of the MSU tests reveals the potential
accuracy of the flexure-shear model. For the MSU tests, excluding the effect of concrete
tension results in a minimal increase in error when predicting Lpr, Lp and displacement.
Analysis of a set of parametric models shows that the increase in error when predicting
Lp and displacement is less than 10% provided that the longitudinal reinforcement ratio
in the boundary element is greater than 3% for up to 10 ksi concrete, and 4% for up to
20 ksi concrete.
Thesis (M.S.)--Tufts University,
2011.
Submitted to the Dept. of Civil
Engineering.
Advisor: Eric
Hines.
Committee: Masoud Sanayei, and Rigoberto
Burgueño.
Keyword: Civil
Engineering.read less
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