I'm having some trouble using ACI 318 Appendix-D for determining embedment length for pull-out.
Situation:
I have an octagonal shaped pedestal/cap, 16'x16', supported by drilled piers. The foundation supports a round vessel, 13'-6" diameter. The moment at the base of the vessel creates...
My question is about frost depth requirements for an outdoor industrial slab on grade. Minimum ftg depth for frost penetration is 24 inches. Slab size is 70 x 80 ft.
I have numerous pieces of equipment – tanks, pumps, platforms, pipe supports, vessels, all light to moderate loadings in that...
Monday morning crisis:
A project we're doing at an industrial site utilizes 30-inch drilled pier foundations to rock. The holes have been filling up with water soon after drilling.
Environmental testing is performed for contaminents during and after drilling. The last pair of drilled...
This is a question about overly wet soils:
We’re putting in a cantilevered retaining wall for secondary storage around AST’s for Fuel storage in Sacramento, CA. This is a new site, with no other structures in the immediate area. The ground was very flat with a water table around 11 ft. below...
I'm reviewing a concrete specification that we're trying to use on an upcoming job. It's been in-place before my time and has had several shots/changes put to it, of which the history isn't really known. In the spec. section for admixtures, it states the following:
"High range water...
I'm looking at evaluating lateral load capacity for drilled piers w/ respect to soil support (not RC design). I've used in the past a paper published by PCA titled "Design of Concrete Foundation Piers" by Frank Randall, May 1968. Is anyone familiar with this paper? or have opinions...
Slab on Ground - 46'x134', 4 interior drain points (not at evenly spaced intervals) with the slab elevation level around perimeter & at intermediate joints. 4 inch difference between drain elev. and perimeter, slab sloping to drain points.
Does the concrete thickness vary in order to create...
I've been reviewing some older posts for slab on grade construction, and read about the "soft" cut method for creating control joints. This really sounds like the way to go... what would be the disadvantages? If it's a large pour and in hot weather, does it set-up too fast? Other...
When welded connections are for exterior industrial steel platforms, walkways and such, is it better to weld-all-around in order to seal against corrosion?
I'm refering to things such as gusset plates, connection plates,and stiffeners welded to W-shapes and channels. I realize there are...
I'm hoping someone may have some insight as to the code ramifications on altering an existing fuel storage tank (steel plate construction).
My question is: If the tank is altered, such as installing anchors to a previously unanchored tank, does that open the door to new code requirements for...
I'm hoping someone may have some insight as to the code ramifications on altering an existing fuel storage tank (steel plate construction).
My question is: If the tank is altered, such as installing anchors to a previously unanchored tank, does that open the door to new code requirements for...
I've been working on a 1-story masonry building, it's an addition off of an existing metal building to provide office space. The site is very isolated, outside of city limits and it's being used to store the clients own materials. I have recently noticed that a 4'x4' opening is shown on the...
I have w8 simply supported roof beams on an incline of 5 degrees, approx. 1:12 slope. One end bears on top of a horiz. wide flange, and the other end goes on top of an 8" cmu wall.
What would be a practical bolted connection detail? Do I have to cut the bottom flange back and weld a...
