When to use Joist Girders vs Wide Flange
When to use Joist Girders vs Wide Flange
(OP)
I've never really run into anything saying when it's better to use joist girders vs just using a wide flange section. Just for simple roof framing. I feel joist girders should really only be used when you can use a large amount of them to gain the economy. For small structures, I think wide flange girders are the way to go. What do you guys think?






RE: When to use Joist Girders vs Wide Flange
RE: When to use Joist Girders vs Wide Flange
1) there is a possibility that the girder will need to be reinforced for added loads in the future. (Have you ever tried to reinforce a joist girder?)
2) Short schedule and quick delivery is important.
3) Where minimizing the depth of the girder is important.
4) Varying magitude of loads.
5) Other special situations.
Although joist girders can be designed for varying loads, pass thru ductwork, end moments, etc., the place that they really shine are equal loads and equal panels with no depth restriction.
RE: When to use Joist Girders vs Wide Flange
Dik
RE: When to use Joist Girders vs Wide Flange
RE: When to use Joist Girders vs Wide Flange
They are usually quite deep and have deeper seats at the ends. They can be designed to also take end moments from a wind frame mechanism at the columns.
RE: When to use Joist Girders vs Wide Flange
RE: When to use Joist Girders vs Wide Flange
DaveAtkins