I am going to take my Civil PE in October and I was wondering if anyone found an online review helpful. My area is pretty sparse for in person reviews and even the ASCE review is a webinar now (and charging $2000!!!!). Anyone have a more reasonable option that worked?
Thanks,
Andy
I am a Structural Engineer at a multi-discipline firm. I am requesting some help from our MEP and Municipal Departments for a building restoration job that I am the Project Manager on.
We have been requested to look at backflow prevention for our building after neighboring condos had the...
Thanks for some of the innovative ideas. I kind of arrived at the encasing the column in concrete idea myself, and liked it for its simplicity, but due to schedule we had to go with a steel solution (steel fabricator already on site). We just cut the column and welded a new section and cap...
We are working at a condominium along a beach. Reinforcing a pool deck that has seen far too much corrosion from the elements. The pool deck intersects with the main building at a balcony. We have to replace the balcony spandrel beam, but want to avoid replacing the balcony columns as they...
We did this at a Stone load bearing wall before. Whenever we had to remove part of the diaphram (a floor), we put something back. In this case we put beams turned on their side to take the wind load and anchored them to the stone. Anchorage can be a concern, but it has to be as good as the...
We recently did something similar, containing acidic materials. We loaded our slab up with small rebar at a tight spacing to control cracking. But we had Sika recommend some products (concrete coating) that would contain the fluid (despite the cracks below). We just sent them the MSDS and...
But freezer slab insulation does not provide a subgrade modulus. The spec for freezer slab insulation only provides compressive strength and safety factors. The subgrade modulus of what is below the insulation may be 100-125 pci, but it doesnt matter if I cant verify that my freezer insulation...
JLNJ-
After talking with co-workers about it, that is what we decided to do. I used the criteria from the insulation cut-sheet of 10% deformation (@ 30 psi) to determine the actual deflection. I then used this deflection and my applied point load to figure out what beam length would result in...
We have a freezer, that will be kept below freezing. We try to get an R-Value of 15 or greater out of our insulation. We have had success with it as far as freeze-thaw. I am just worried about the high point loads. The client wants to use the 30 psi, or an even cheaper 25 psi. We want to...
An additional issue that may be a solution to this problem.
The 45 degree angle is the commonly accepted as the failure shear angle in concrete. Does this angle slacken as the load becomes less than the failure load? ie if a load of 1,000-lbs fails the slab, does a load of 500-lbs produce a...
I have spec'ed freezer slab insulation a couple times in the past and have talked to DOW about how they come up with their numbers.
There are two type of insulation - 30 psi and 45 psi
These numbers are the crushing strength at yield or a 10% deflection (whichever comes first). And using a...
and dont forget that reinforcing will only serve to take live loads unless the member is unloaded (with shoring or by other means) during installation.
The original beam will maintain the stress from dead loads and the reinforcement + original will act as one to take the loads that were not...
