Diagonal Cracking
5 important questions on Diagonal Cracking
Why is shear depth used to calculate the shear stress in a cracked reinforced concrete member?
If an element is subjected to pure shear, what is the relationship between the applied shear stress and principal tension stress?
Why is the flexure-shear cracking stress lower than web shear cracking stress?
In flexure, cracks were already there because of bending. Shear cracking starts at the end of crack and high stress concentrations at crack ends make it easier for cracks to propagate.
Overall - already cracked in flexure, high stress concentrations
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Why is the shear stress at diagonal cracking lower in larger members?
- Force/unit area it resists decreases but capacity increases
Why is shear stress at diagonal cracking lower is slender members?
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