What is the Phi factor for shear? Why is the Phi factor typically lower than the...
What is the Phi factor for shear?
Why is the Phi factor typically lower than the Phi for flexure?
What are two cases that we cannot use the ACI approach to shear design?
Why can't we use the ACI method?
Why is it possible to design for the shear at “d” away from the support?
What are the advantages of designing for the shear at “d” away from the support?
Homework Answers
i) Phi factor for shear force is the ratio of required shear strength (Vu) to provided shear strength (Vn). It is also known as strength reduction factor.
ii) Phi factor is generally represent the uncertainity stresses in member's behaviour, like in beam the moment causes the flexural stress where in column both axial and flexural stress are generated which cause uncertainity in stress computing, and also in beam shear stress is generated but in column shear stress is not generated.That's why phi factor for shear is 0.75 and phi factor for flexure is 0.90.
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What is the Phi factor for shear?
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