Annular reinforced concrete (RC) members are commonly used in bridge structures and offshore
platforms. These RC members often fail under the combined actions of axial force, bending moment, shear force
and torsion load in hazards of earthquake and wind. It is very important to study the failure mechanism of annular
RC members under combined actions. This study proposes a model to analyze the ultimate strength of annular
RC members under combined actions using limit failure theory. A new method is established to determine the
geometric parameters of the warped failure surface, and the new calculation model for the ultimate strength is
obtained using the equilibrium conditions based on the geometric parameters and the stress distribution on the
failure surface. The proposed model calculations are compared with a series of experimental results of annular RC
members, and they correspond well with the experimental results. The proposed model is feasible for engineering
application.
WANG Pu (王璞), ZHOU Dai (周岱), HUANG Zhen* (黄真)
. Ultimate Strength of Annular Reinforced Concrete Members Under Combined Actions[J]. Journal of Shanghai Jiaotong University(Science), 2019
, 24(4)
: 430
-438
.
DOI: 10.1007/s12204-019-2088-0
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