I have a 24.5' x 64' section of slab on grade (10") that I have joints: 1 vertical and 1 hor. cutting the slab into 4 sections each 12.5 x 32 roughly. the architect has floor drains in the middle of the 24.5x64 section and the slab sloping to the drains. they want joints coming from each corner...
I have a condition where there is an existing water main in a condo slab on grade house. I am doing work that requires a new footing over the pipe. depth of pipe is unknown. I am proposing an 18"x18"x10" concrete footing flush with the top of the existing 4" slab on grade. I have a note stating...
I have a proposed 7ft wide basement window condition in an existing 8" masonry wall. I am told the tributary first floor load is 6ft and there's 8ft tall first floor block wall above this proposed opening. without looking too deep into it, I assumed the 8"x8" x 7ft precast lintel wouldn't work...
Hello,
General question here, just caught up in my own thinking and would like some clarifications
when you have a partially enclosed building the GCpi is 0.18 and -0.18
when I calculate pressures for a building I calculate Windward and Leeward both twice, once with 0.18 and again with -0.18...
I have a condition where in a podium style building there is a wall sitting on the podium level (steel k-series + pan deck 4" total thickness plus support steel WF girders). this wall supports the TJI framed floor above. the wall carries about 2800 plf. originally the wall sat directly on the...
I have a 10" thick slab on grade with two mats of #4 @ 12" o.c. each way
from ACI min equations for temp and shrinkage, the slab has equivalent reinforcing.
As(min)=.0018(h)(bw)
I will have larger trucks parking on this slab so I wanted to check for punching shear. assuming a conservative tire...
Hello,
I have a 10" slab on grade with #4 @ 12" o.c. top each way and bottom each way.
I have an unknown K factor for the slab and it is spec'd as 4000 psi concrete
Can anyone please provide the equation to calculate the PSF capacity of the slab?
Hello, new here but love the topics
I have a 98' wide x 65' deep municipality building with 16.5' wall heights and a 41' tall ridge line. simple gable roof spanning 65 ft with the trusses spliced 2/3 depth over steel beams. I have 20.5' long moment frames located at 1/4 points that are parallel...
