Journal ArticleDOI
Size effect in shear failure of longitudinally reinforced beams
Zdenek P. Bazant,Jin Keun Kim +1 more
- Vol. 81, Iss: 5, pp 456-468
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The article was published on 1984-09-01. It has received 265 citations till now. The article focuses on the topics: Shear strength.read more
Citations
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Journal ArticleDOI
Continuum Theory for Strain‐Softening
TL;DR: In this article, it is shown that failure occurs by progressive distributed damage during which the material exhibits strain-softening, i.e., a gradual decline of stress at increasing strain.
Book
Fracture mechanics of concrete structures
TL;DR: In this article, the authors present a state-of-the-art report on fracture mechanics of concrete: concepts, models and determination of material properties, including fracture models with softening zone.
Journal ArticleDOI
Size effect on diagonal shear failure of beams without stirrups
TL;DR: In this article, the authors present the results of recent tests on diagonal shear failure of reinforced concrete beams without stirrups, which indicate a significant size effect and show a good agreement with Bazant's law for size effect.
Journal ArticleDOI
Effectiveness of stirrups and steel fibres as shear reinforcement
TL;DR: In this article, the authors present the results of experimental tests carried out on rectangular simply supported beams made of hooked steel fibre reinforced concrete with and without stirrups, subjected to two-point symmetrically placed vertical loads.
Journal ArticleDOI
Shear fracture tests of concrete
TL;DR: In this article, the authors show that cracks do not propagate from the notches in the direction normal to the maximum principal stress but in a direction in which shear stresses dominate.
References
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Journal ArticleDOI
Crack band theory for fracture of concrete
Zdeněk P. Bažant,Byung H. Oh +1 more
TL;DR: In this article, a fracture theory for a heterogenous aggregate material which exhibits a gradual strain-softening due to microcracking and contains aggregate pieces that are not necessarily small compared to structural dimensions is developed.
Book
Reinforced Concrete Structures
Robert L. Park,Thomas Paulay +1 more
TL;DR: In this article, basic assumptions of Theory for Flexural Strength of Members with Flexure and Axial Load are presented, including: Strength and Deformation of members with Torsion. Strength and Ductility of Frames.
Journal ArticleDOI
Size Effect in Blunt Fracture: Concrete, Rock, Metal
TL;DR: In this article, the authors studied the structural size effect of fracture in concrete and rock structures, using dimensional analysis and illustrative examples, and showed that the energy release caused by fracture depends on both the length and the area of the crack band.
Journal ArticleDOI
Derivative free analogues of the Levenberg-Marquardt and Gauss algorithms for nonlinear least squares approximation
Kenneth M. Brown,John E. Dennis +1 more
TL;DR: In this article, the authors give two derivative-free computational algorithms for nonlinear least squares approximation, which are finite difference analogues of the Levenberg-Marquardt and Gauss methods.
Journal ArticleDOI
How safe are our large reinforced concrete beams.
TL;DR: FOUR SERIES of test beams with DEPTHs of 6, 12, 24, and 48 INCHs were tested at the University of Toronto and the results showed that the SAFETY factor for the largest BEAMS was only 40 percent lower than the otherwise SIMILAR SMALLER BEAMS as mentioned in this paper.