American Society of Civil Engineers


Model for Reinforced Concrete Members under Torsion, Bending, and Shear. II: Model Application and Validation


by Gary Greene, Jr., M.ASCE, (Project Engineer, Professional Service Industries, Turner-Fairbank Hwy. Research Center, 6300 Georgetown Pike, McLean, VA 22101. E-mail: gary.greene@fhwa.dot.gov) and Abdeldjelil Belarbi, (corresponding author), F.ASCE, (Distinguished Professor, Civil, Architectural, and Environmental Engineering, Missouri Univ. of Science and Technology, 323 Butler-Carlton Hall, Rolla, MO 65409 E-mail: belarbi@mst.edu)

Journal of Engineering Mechanics, Vol. 135, No. 9, September 2009, pp. 970-977, (doi:  http://dx.doi.org/10.1061/(ASCE)0733-9399(2009)135:9(970))

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Document type: Journal Paper
Abstract: A model was recently proposed for predicting the load-deformation response of a reinforced concrete member under torsion combined with bending and shear to spalling or ultimate. This paper shows the application of the model to create interaction surfaces to predict the failure of a member subjected to different ratios of applied torsion, bending, and shear. The model was validated by comparing the predicted and experimental behavior of 28 members from three experimental studies available in the literature. The members were loaded under torsion combined with different ratios of bending, and shear. The torque-twist behavior, reinforcement stress, and concrete surface strain predicted by the model were in close agreement with the experiments. This paper also describes how the model can be applied to create interaction surfaces. The interaction curves predicted by the model were validated by comparing the predicted and experimental capacities of 17 specimens available in the literature.


ASCE Subject Headings:
Reinforced concrete
Combined stress
Nonlinear analysis
Bending
Validation
Torsion
Shear