Ultimate Membrane Strength of R/C Shell Elementsby Kye J. Han, Univ of Houston, Houston, TX, USA,
S. T. Mau, Univ of Houston, Houston, TX, USA,
Abstract: The ultimate strength of reinforced concrete shell elements is governed by the yielding of steel and/or the compressive strength of concrete. Depending on which of these two conditions govern, there are three types of failure modes: (1) the yielding of reinforcement in both directions, (2) the yielding of reinforcement in only one direction followed by the compressive failure of concrete, and (3) the failure of concrete before the yielding of any reinforcement. The element behavior is ductile for the first two modes, and is brittle for the last mode. Boundaries for different modes of failure are determined for tension-compression loading cases, and presented as design aids.
Subject Headings: Reinforced concrete | Failure analysis | Ultimate strength | Failure modes | Material failures | Compressive strength | Structural design
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