Behavior and Design of High-Strength RC Walls


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Title: Behavior and Design of High-Strength RC Walls

Author(s): J.W. Wallace

Publication: Special Publication

Volume: 176


Appears on pages(s): 259-280

Keywords: Earthquake-resistant structures; high-strength concrete; reinforced concrete; shear properties; strength; walls

Date: 10/1/1998

Use of high-strength reinforced concrete walls in regions of high seismic risk is evaluated using current U.S. code provisions, an example building, parametric studies, and experimental results. The format of current U.S. code provisions for structural walls promotes the use of high-strength concrete; however, the use of these provisions has not been evaluated for high-strength concrete. Analytical studies of building systems utilizing slender walls indicate that there is not a significant advantage associated with the use of high-strength concrete waUs and that this advantage tends to diminish with increasing concrete strength. Evaluation of test results conducted in Japan for low-aspect ratio walls indicates that ACI 318-95 requirements do not represent the observed shear strength well. Based on the limited database considered in this study, a value of 1.0 f' c MPa (126) was found to provide a good estimate of wall shear strength.