Strength of Reinforced Concrete Beams
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VIEW THE REPLYPublication: Transactions of the American Society of Civil Engineers
Volume 125, Issue 1
Abstract
Shear failure of concrete beams is recognized as the failure under combined compression and shear of the concrete above a diagonal crack. Rational interaction equations for the failure of plain concrete under this stress combination are developed on the basis of Mohr's failure theory. For the equations to be applicable, the strength of the particular concrete in direct compression as well as in direct tension must be known. The latter is determined satisfactorily from the modulus of rupture. The equations are used to develop a rational theory of shear strength of beams without web reinforcement.
It is the object of this paper to examine some basic aspects of the problem of shear strength of reinforced concrete beams with a view toward establishing a general shear-strength theory. In particular, a theory is developed for the shear strength of beams with plain webs that is based on the material's properties and geometry of the beam. The theory is considered to have possibilities for extension to the case of beams having reinforced webs. Test results from twenty-one beams with plain webs and eight beams having vertical stirrups as web reinforcement were compared with values for ultimate strength predicted by the theory developed herein.
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Published In
Transactions of the American Society of Civil Engineers
Volume 125 • Issue 1 • January 1960
Pages: 603 - 633
Copyright
© 1960 American Society of Civil Engineers.
History
Published in print: Jan 1960
Published online: Feb 10, 2021
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