Fisrt of all, I suggest you find out if flying solo is for you. Just as for any other businees, you will need some character elements essential in an entrepeneur. You can do some search and take a quiz about entrepeneurialship over the internet. If you think you are ready, I'd like to share my...
I see you have an enteprenurial mind. You see an opportunity and try to take advantage of it. I think you should try and go fly solo, when you are ready. My 2 cents of advise: when you make a deal, do it in a plain field. Almost always doing business with your employer is a bad idea because they...
Thank you for your help.
I don't find a lot of embedments in my scope of work. Buying the book just for this job is quite a expense, on the other hand, I have to deliver by Monday.
Is there any website you know of showing these formulas?
Simpson hasn't exactly waht I'm looking for.
Thanks again.
In order to support the roof joists, embedded plates connected to concrete with shear studs are used.
In a critical condition, the roof joist is aligned with the panel edge, so the plate will be embedded at the edge of the panel.
I need to find out formulas to calculate the shear studs when they...
Yes, PCI recommends plate thickness to be 2/3 of stud diameter.
OK, that may be the reason, I am not quite convinced on how the union between the stud and plate will perform. I guess test have been done and it is well determine that stud failure controls.
Regarding what controls, I have found...
60-ksi shear studs are welded to 36-ksi base metal plates or beams. All books I have read use the 60 ksi value when calculating stud strength. I have always used the lower, 36-ksi base metal strength, but I have found so many authors using the 60 ksi value, that I am truly concerned I am...
To relate DT with flow will involve a substantial amount of data, in particular, the exact heat load of the building.
Be careful with velocities, because in order to determine flow, you will need the average velocity across the pipe cross section. Velocity is max at center of flow, and near zero...
Sorry I misunterstood the data. I agree with quark, a 3" trap should suffice.
Now, when the damper is closed, the air handler shouldn't be working. Additionally, if the damper is closed because of a fire, what importance may have a few drops of water into the AC ductwork anyhow? I don't think...
For 6000 fpm in a 24" duct, you will be moving aprox 18,600 CFM, and your pressure drop will be 1.6 in per 100 feet of ductwork.
If you have about 24" between the condensate drain and the fan, that will be 0.067 in in pressure drop.
You can use uninsulated ductwork when air temperature, or moisture inside and outside the ductwork are very similar.
For instance, you can run uninsulated supply AC ductwork through conditioned spaces, not close to radiant surfaces like hot roofs, where warm air will gather. Do not run...
Thank you for your input. I have checked Carrier software, but didn;t find it to be better than Trace 700. I have used Trace 700, and I liked it. Wrightsoft is marketed by the AC Contractors Association. I have never used it but I am told is good.
I think I have made up my mind andwill buy...
I am looking for a good professional HVAC software to perform load calculations.
So far, I have found the Trane software and Wrightsoft. They both seem very good, but I can't decide which one is best.
I'd appreciate any input from users who perfrom residential and commercial heat load...
You can put a lien on the property where your design will be built.
In Florida, the process is: You serve a Notice to Owner within 15 days of finishing your work, after that you will send a Notice of Intent to Lien, and if necessary you will follow up with actually putting a lien on the...
We live in low terrain, about 5 to 10 FT MSL (Miami, FL).
Exfiltration trenches, or french drains, are the main type of storm drainage used.
Runoff water is collected in the drainage system, and percolates at a rate allowed by the soil.
The use of rock in the trench and geotextile wrapping is...
Hello!
Can somebody please indicate me the design approach and formulas to determine the legth adn diameter of Perforated Pipe in a rock bed (French Drain).
Additionally, what is the criteria to determine the amount and size of the catch basins connected to the drainage pipes?
This is a...
