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Although the topic of shear strength in reinforced concrete beams has
been treated for a long time by several research bodies, the calculation
models available to practicing engineers do not allow to calculate
precisely the shear strength of a given beam.
The research performed by the Structural Concrete Laboratory have shown
that the uncertainties in the shear strength are related to the
distribution of the shear on the depth of the section, the ability
of the tension and compression chords to carry a part of the shear force
and the effect of a simultaneous contribution of a transverse bending.
These effects are currently being investigated experimentally and
analytically.
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Reference publications
- Hars E., Niketic F., Fernández Ruiz M., Response of RC panels accounting for crack development and its interaction with rebars, Magazine of Concrete Research, 2017, 23 p.
- Rupf M., Fernández Ruiz M., Muttoni A., Post-tensioned girders with low amounts of shear reinforcement: Shear strength and influence of flanges, Engineering structures, Vol. 56, 2013, pp. 357-371.
- Fernández Ruiz M., Muttoni A., Shear strength of thin-webbed post-tensioned beams, ACI Structural Journal, Vol.105, No 3, USA, 2008, pp. 308-317.
- Muttoni A., Guandalini S., Kommentar zum Durchstanzen nach SIA 262, Lausanne, Switzerland, 2006, 14 p.
- Campana S., Fernández Ruiz M., Anastasi A., Muttoni A., Analysis of shear-transfer actions on one-way RC members based on measured cracking pattern and failure kinematics, Magazine of Concrete Research, Vol. 56, No. 6, UK, 2013, pp. 386-404.
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