Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behavior of Epoxy-Injected Diagonally Cracked Full-Scale Reinforced Concrete Girders
This paper is an important contribution to the literature on repair of reinforced concrete girders. However, the author is not sure that the test specimens were very representative of 1950s details. The shear reinforcement is quite heavy compared to at least some examples. The allowable service load shear stresses under the 1953 AASHTO specification were extremely high, compared to any current standard. In addition, the 1953 AASHTO specification had almost no minimum limits on shear reinforcement. There was no maximum spacing limit such as the 24 in. (600 mm) now commonly observed, and the d/2 limit in current codes was invoked only when shear reinforcement was required. The test specimens had a shear steel ratio of approximately 0.0024. The lowest shear steel ratio in the structure in Gamble (1984), which did not require shear reinforcement by 1953 AASHTO requirements, was approximately 0.00035, and the highest approximately 0.0007.
Behavior of Epoxy-Injected Diagonally Cracked Full-Scale Reinforced Concrete Girders
This paper is an important contribution to the literature on repair of reinforced concrete girders. However, the author is not sure that the test specimens were very representative of 1950s details. The shear reinforcement is quite heavy compared to at least some examples. The allowable service load shear stresses under the 1953 AASHTO specification were extremely high, compared to any current standard. In addition, the 1953 AASHTO specification had almost no minimum limits on shear reinforcement. There was no maximum spacing limit such as the 24 in. (600 mm) now commonly observed, and the d/2 limit in current codes was invoked only when shear reinforcement was required. The test specimens had a shear steel ratio of approximately 0.0024. The lowest shear steel ratio in the structure in Gamble (1984), which did not require shear reinforcement by 1953 AASHTO requirements, was approximately 0.00035, and the highest approximately 0.0007.
Behavior of Epoxy-Injected Diagonally Cracked Full-Scale Reinforced Concrete Girders
William L Gamble (Autor:in)
ACI structural journal ; 112
2015
Aufsatz (Zeitschrift)
Englisch
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