Beam Load Rating
Beam Load Rating
(OP)
This will be very easy for you structural guys, but it has been a while since I have worked with anything but pumps and compressors.
I have a 14W30 beam (building rafter), approximately 16 feet in length that is sloped at 18.4° (4 on 12). I need to determine that the beam can be used as a support for personal fall protection (tie-off). Policy states that it must support 5,400 lb per person. I would like to assume 4 people tied to the beam, and also worst case of all of them being at the same point (middle of span being worst case?). Could someone help me with the calculations that are needed to prove this?
Thanks
chastst
I have a 14W30 beam (building rafter), approximately 16 feet in length that is sloped at 18.4° (4 on 12). I need to determine that the beam can be used as a support for personal fall protection (tie-off). Policy states that it must support 5,400 lb per person. I would like to assume 4 people tied to the beam, and also worst case of all of them being at the same point (middle of span being worst case?). Could someone help me with the calculations that are needed to prove this?
Thanks
chastst






RE: Beam Load Rating
RE: Beam Load Rating
RE: Beam Load Rating
You should have someone experienced with this do this for you, such as a supervisor, or hire a licensed professional to check it.
RE: Beam Load Rating
PL^3/48EI for deflection
You may want to include an impact factor
RE: Beam Load Rating
RE: Beam Load Rating
In addition to the PL/4 moment due the point load, you need to include the wl^2/8 moment due to the uniform roof load.
RE: Beam Load Rating