Wide Flange Beam - Uniformly Loaded
Post Reply   Forum
Posted by: DaveMattoon ®

12/09/2006, 12:35:39

Author Profile
eMail author
Edit

I'm trying to learn how to calculate the maximum deflection of wide flange beams carrying uniform loads.

The deflection formula is (5 X Weight X Span**3)/384 X E X I).

Using a W8X10 for example is the modulus of elasticity E value 29,000,000 for carbon steel, and is the moment of inertia I value 30.8?

Therefore, for a W*X10 beam over a 12' span carrying 240lb/ft, is this formula correct?

(5 X 20 X 144 X 144 X 144) / (384 X 29,000,000 X 30.8)








Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
View All   | Next |

Replies to this message

Re: Wide Flange Beam - Uniformly Loaded
Re: Wide Flange Beam - Uniformly Loaded -- DaveMattoon Post Reply Top of thread Forum
Posted by: DaveMattoon ®

12/10/2006, 18:31:53

Author Profile
eMail author
Edit

Oops, my formula for the W8X10 beam had a typo.

(5 X 2880 X 144 X 144 X 144) / (384 X 29,000,000 X 30.8)








Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread | |
Re: Re: Wide Flange Beam - Uniformly Loaded
Re: Re: Wide Flange Beam - Uniformly Loaded -- DaveMattoon Post Reply Top of thread Forum
Posted by: swearingen ®

12/12/2006, 07:34:23

Author Profile
eMail author
Edit

You had the loading right the first time: 240#/ft = 20#/in, not 2880. However, the equation you're using is incorrect. Go back to your book and compare it very carefully to what you have posted...







Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread

Powered by Engineers Edge

© Copyright 2000 - 2024, by Engineers Edge, LLC All rights reserved.  Disclaimer