I have not designed any tilt-up wall structures, but I do forensic investigations and I was asked to inspect this distribution warehouse structure where the purchaser noticed these cracks in the loading dock area. I'm heading out to take a closer look today, but was online researching what I...
I have a dilemma where the client wants to set a dynamic piece of equipment on a 2' thick concrete pad that is doweled onto an 8" thick elevated floor (second floor) only 1 day after setting the concrete. He is proposing high early strength concrete that is shown to achieve 3900 psi after 24...
I've not designed a foundation for a printing press. This one is for a client in Arkansas. The soils are good. Low PI and shale at 4' and beyond. Allowable bearing is around 2500 psf and expected settlement for shallow rigid foundations is less than 1", but the differential settlement...
I have a vertical vessel supporting structure with an intermediate section that does not allow cross bracing at the chevron braces. I modeled it in Risa3D and used a compact W10x33 primary chord that spans 16' in the long direction. To account for no lateral bracing, I used the full member...
I have a typical chevron braced four level industrial structure that’s 10’ x 16’ base with four W12x65 columns. Supports a vertical vessel supported at the third level.
I’ve got a base plate with six bolts, three each outside the flanges. Since there’s a bolt at the center of the flange, I’m...
2 Jul 20 00:17
For smaller centrifugal pumps, say a 50 hp 1200 rpm machine weighing 2400 lbs on a base approximately 5.7'x2.5', has anyone built a mounting pad/block doweled onto pavement approximately 6" thick using hilti HIT 200R anchor system. This is assuming you can get the 3 times mass...
I am new to the forensic inspection industry, but it typically involves insurance companies hiring engineering firms to investigate and evaluate structures, in our case typically residential structures (single family homes), with the intent on evaluating (determining cause and origin of damage)...
I am new to Pre-engineered Building Industry. What certification requirements are there for a building fully built in shop and transported to industrial site? I've seen the IHB Certification and understand that is applicable per the TDLR. Is that correct and what else is required for...
I am new to the commercial connection design field. At our company, we typically design the beam to girder and beam to column shear tabs with a single column of bolts and design to 1/2 Capacity of the beam. The shear tabs are typically 3/8"x4"xVarious Lengths, so they are not considered...
