# PhanthomJay

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HW Helper

#### Visitor Messages

Showing Visitor Messages 1 to 7 of 7
1. Oct22-13 03:56 AM
Karstedt
The reply finally showed up in the post.
2. Oct17-13 02:59 AM
Karstedt
RE: Trouble with trusses post... I tried to reply days ago but it's not showing up.

I didn't include the braces in the lower structure, they didn't seem relevant to the issue I'm having, but they go from the top left to right mid and right mid to lower left.

Basically, I thought it was indeterminate too about 5 minutes into the problem, but this course doesn't cover indeterminate structures, so I've spent hours taking equilibrium equations from every angle to see if I'm missing something. Though there are really only 3 variables because W is the term I need to solve everything else in, the 3 unknowns are all parallel, which mucks things up.
3. Oct5-12 01:55 AM
JackandJones
Okay I tried doing that...but im not sure it is correct. Could you show me some calculations of what you got? And/or show me a diagram?!

I appreciate the help!
4. May2-12 09:48 AM
kimann020
jay. i have a question i am doing a problem for allowable compressive stress where

θ = 24,000 psi
A = 11 in ^2

those are given so im tying to find P

θ=P/A = P= Aθ

P= 264,000 lb

but my teacher says the answer is 2181.8 lbs

5. Oct31-11 11:46 AM
sankalpmittal
Amazing and bewildering !!
6. Oct30-11 01:35 PM
sankalpmittal
That was my unintentional mistake
I edited my post : http://www.physicsforums.com/showthread.php?p=3588064

Thanks !!
7. Oct14-11 10:29 PM
bphili
Hi,
Maybe you have a sec to view a problem I'm having difficulty with?

Biography
4 children and 7 grandchildren!
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Degree in
MS structural engineering
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The MockingJay

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