We have a storage tank (600000 gal capacity) that has been overstressed due to freezing and expansion of the contents. The original diameter is 60'. The lower shell course has swelled to 60'-10" diameter. The tank was built in the 50's, and drawings indicate it was designed and constructed to...
We have been asked to provide steel beams imbedded in a concrete floor. It is our understanding that rails will be installed on the beams. Automated die spotting carts will run on the rails. The specified slope tolerance for the beams is 0.006" per foot.
The available mill tolerance on...
We have been asked to provide steel beams imbedded in a concrete floor. It is our understanding that rails will be installed on the beams. Automated die spotting carts will run on the rails. The specified slope tolerance for the beams is 0.006" per foot.
The available mill tolerance on...
We constructed a 70000 square foot metal fabrication plant a few years back for a customer. It is fully sprinkled, with a design density of 0.35 gpm/sf. The eave height is about 55 feet. The building houses large metal stamping presses. The customer originally stored both finished and...
I am looking for a Microsoft Visio stencil that expands the P&ID symbols that comes with the software. Does anyone have a lead on something similar to this? If not, what software packages do you use for constructing P&ID's?
I am trying to develop a spreadsheet to find instances where our accounting department might have double paid an invoice. I have dumped raw accounting data to a spreadsheet, including payment amounts, dates, etc. Currently, I sort the data by payment amount, and look for duplicate transactions...
We are experiencing an abnormally high failure rate with electric motors in our processing plant. We manufacture a salt that has a high pH (12+), a very high electrical conductivity, and very hygroscopic (it absorbs water from the air). It is also very corrosive to copper. Most of the failures...
In a building cost estimating spreadsheet, I use my final total to calculate some of the cost components. For example, my engineering and permit fees are both a function of my final cost. I set up an iterative calculation so that it closes to my final cost. This works fine until a cell goes...
I have a 10 year old machine that uses a PLC2/16. I would like to replace this PLC with a SLC 500. Does anyone know of software to convert the program to run on an SLC 500. Does anyone know of a good source to purchase spare parts for the PLC 2? Thanks in advance.
Does anyone have experience with an environmentally friendly, economical dust control solution for gravel roads? I have a problem with dust during dry weather at the entrance to our plant. Currently, the crushed limestone road holds up well -- no rutting or potholes. However, the dust from...
Is there an easy way to extract distribution curves from a data table? We currently record bag weights into an excel sheet. We are manually generating distribution curves and identifying the number of bags exceeding tolerance. This is a very tedious process and prone to error. Any suggestions?
We are looking for information and design techniques for designing economical foundations for pre-engineered metal buildings. We are using classical techniques, but see some competitors that obviously know something that we do not. The difference seems to lie in the way uplift is accounted...
