sanji02
Structural
- Oct 7, 2010
- 8
This is somewhat a continuation of discussions under:
- Requirements For Transverse Shear Reinforcement - Minimum Shear Reinforcement
and
- Size effect factor in thick slabs
The latest AS3600-2018 amendment 2 clarified that minimum shear reo is require for one-way slab or beam when depth >750mm. This requirement is addressing size effect as I understand? I read somewhere experiments have shown deep slab, the top half may separate from bottom half during experiments (sorry for my crude description, I can't find the info) thus shear capacity was different from theoretical.
Why is it then two-way thick slab, say >750mm like deep beam/one-way slab, does not need minimum shear reo to account size effect? And another point, the D>=750 for one-way and beam is a geometry requirement, where minimum shear reo is required irrespective of the shear capacity vs design shear force.
- Requirements For Transverse Shear Reinforcement - Minimum Shear Reinforcement
and
- Size effect factor in thick slabs
The latest AS3600-2018 amendment 2 clarified that minimum shear reo is require for one-way slab or beam when depth >750mm. This requirement is addressing size effect as I understand? I read somewhere experiments have shown deep slab, the top half may separate from bottom half during experiments (sorry for my crude description, I can't find the info) thus shear capacity was different from theoretical.
Why is it then two-way thick slab, say >750mm like deep beam/one-way slab, does not need minimum shear reo to account size effect? And another point, the D>=750 for one-way and beam is a geometry requirement, where minimum shear reo is required irrespective of the shear capacity vs design shear force.