@inproceedings{db6797d2e02e4339aebde167081bb955,
title = "Early-age shear strength of reinforced concrete beams",
abstract = "A study was conducted to determine if the current design formulas can adequately predict the capacity of reinforced concrete beams tested at early ages and to determine the effectiveness of stirrups in young beams. Three sets of reinforced concrete beams were tested with the main variables being beam age and stirrup spacinq. It was found that the ACI-318 ultimate strength design method provides a lower bound to flexural strength of young reinforced concrete beams. For beams failing in shear, however the current code provisions appear unsatisfactory. For example, the contribution of shear reinforcement was observed to be less than that predicted by the code when beams failed in shear at early ages. A change in mode of failure was often observed at early ages and the ductility of young reinforced concrete beams was less than that for the 28 day old beams.",
keywords = "Age-strength relation, Beams (supports), Ductility, Flexural strength, Shear strength, Stirrups",
author = "Shah, {Surendra P.} and Miller, {R. A.} and Virding, {T. E.}",
note = "Publisher Copyright: {\textcopyright} 1986 American Concrete Institute. All rights reserved.",
year = "1986",
month = oct,
day = "1",
language = "English (US)",
series = "American Concrete Institute, ACI Special Publication",
publisher = "American Concrete Institute",
pages = "71--92",
booktitle = "Properties of Concrete at Early Ages",
}