S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Architecture and Architectural Engineering (건축학과) Journal Papers (저널논문_건축학과)
Strain-Based Shear Strength Model for Slender Beams without Web Reinforcement
- Issue Date
- American Concrete Institute (ACI)
- ACI Structural Journal, V. 103, No. 6, Nov-Dec. 2006, pp.783-793
- A theoretical model was developed to predict the shear strength of
slender reinforced concrete beams without shear reinforcement.
The shear force applied to a cross section of the beam was
assumed to be resisted primarily by the compression zone of intact
concrete rather than by the tension zone. The shear capacity of the
cross section was defined based on the material failure criteria of
concrete: failure controlled by compression and failure controlled
by tension. In the evaluation of the shear capacity, interaction with
the normal stresses developed by the flexural moment in the cross
section was considered. Because the magnitude and distribution of the
normal stresses vary due to the flexural deformation of the beam, the
shear capacity of the beam was defined as a function of the flexural
deformation. The shear strength of the beam and the location of the
critical section were determined at the intersection between the shear
capacity and the shear demand curves. The proposed strength model
was verified by comparisons to prior test results.
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