Thanks Dave, sure there are, the floor is usually poured first (when made in Symons o no form available) leaving the rebar to connect or sometimes the complete Vertical bar for the walls. The walls are a secondary pour or next day pour (if Symons panels are used), if the form is used the floor...
Do I need to concern about the corner bars at the bottom 40 inches (or 1 meter) of the concrete vault walls just before the floor slab? I know in that area the bending is in the Vertical plane and that portion usually designed as cantilever, so the vertical bars will resist the moment?
Correct, and deformation once the structure is backfilled if poured that way. Thanks for the comment, just trying to complete more training information.
I have a question, what are the possible fails for a rectangular underground concrete vault built with single rebar mats in walls without connecting the Rebar mats with "L" bars at corners 12" o.c. vertical spaced as typical. In other words none continuous reinforcement at corners.
The ones in the example that I found without checking Shear are for underground Catch Basin rectangular precast box, with the floor slab designed as two-way slab, and in a County Airport, with 30,000 lb wheel load with 240 psi max. tire pressure. That is why called my attention, because all the...
I have a question for underground precast structures, specifically rectangular or square boxes, vaults, if I need to check Shear for the floor slab design. I have seen that in several references like Precaster Notebook, a design from Delta Engineering for a CSX Cooper-E80 load and other...
How much Air Content do I need to assume to design a Dry Cast mix for Reinforced Concrete Pipe?
Zero? or 2% in average? I am updating my mix designs that have a 27 cu.ft/ cu.yd yield but with 0% air, but the yield raise if I put air, and I should need to adjust and reduce the aggregates weight...
