punching capacity of unreinforced slab
punching capacity of unreinforced slab
(OP)
does anyone know how to prove punching of a column on a unreinforced or 'lightly' RC slab. ground supported?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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punching capacity of unreinforced slab
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RE: punching capacity of unreinforced slab
DaveAtkins
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
This will be laid out in any concrete design textbook.
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
In doing a new spread footing design I usually select the depth of the footing based on punching or wide beam shear. When doing the initial design, I only use the plain concrete to calculate the shear capacity.
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
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RE: punching capacity of unreinforced slab
But....what you would use for you distance and concrete shear strength is up to you or your code.
RE: punching capacity of unreinforced slab
DaveAtkins
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
RE: punching capacity of unreinforced slab
The BS8110 method is more closely dependant on the area of steel and uses a beam shear type flexural shear strength calculation.
But both require the tension face reinforcement.
Personally, I have never designed unreinforced sections for punching shear, never having believed in the concept but some codes do allow it. Make sure it cannot fall anywhere!
RE: punching capacity of unreinforced slab
thread592-213921: Design of Slabs on Grade for Warehouses
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