Steel framing design for elevator guide rail forces and reations
Steel framing design for elevator guide rail forces and reations
(OP)
Hello, everyone.
I need guidance in how-to approach a beam design (part of the floor framing un braced length 7'-0") for the vertical force and specially the lateral reactions of the elevator guide rails, I have taken in consideration the vertical force, but I no sure of how to go about the lateral reaction, they area around 500#. They seem small, but it seems to me I should be worrying about the beams end connection instead, on side I have a clip connection and the other side rests on a cmu pocket ,someone's experience would be helpful.
Thank you.
I need guidance in how-to approach a beam design (part of the floor framing un braced length 7'-0") for the vertical force and specially the lateral reactions of the elevator guide rails, I have taken in consideration the vertical force, but I no sure of how to go about the lateral reaction, they area around 500#. They seem small, but it seems to me I should be worrying about the beams end connection instead, on side I have a clip connection and the other side rests on a cmu pocket ,someone's experience would be helpful.
Thank you.






RE: Steel framing design for elevator guide rail forces and reations
Both the elevator cab and couterweight ride on the rails. The deflection control will probably govern. I assume this is traction control elevator. I think I would use at least L/600 for deflection control
Seismic will govern the rail design. You probably need to design for a lateral load of at least 0.5xcounterweight.
I don't think the rail will need to support any vertical load unless the elevator relies on it for fall arrest during a malfunction.
So try an HSS for the rail. You are proably looking at an HSS 4x4x1/4 or 6x6x1/4. Something in that range.