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ANSI / TPI 1 - 02 Question

ANSI / TPI 1 - 02 Question

ANSI / TPI 1 - 02 Question

(OP)
I am going through the TPI1 - 02 right now trying to determine the most appropriate method to analyze an existing truss and I had a question:

On Figure D4 @ Joints 1 and 5 there are two different vertical downward loads and one vertical support reaction. Where does the 82.7lb downward load come from? Why is it separated I guess is my question.

Thanks all

RE: ANSI / TPI 1 - 02 Question

I do not have a TPI1 to look at, but at exterior bearings with a overhang. The bearing reaction requires the load from the truss and the overhang. But the truss forces are calculated from a reaction without the overhang load. So the 82.7 lbs could be for the overhang loads.
If this is not the case, a hand copy of the figure, uploaded to this forum to look at would help with answering the question.

Garth Dreger PE - AZ Phoenix area
As EOR's we should take the responsibility to design our structures to support the components we allow in our design per that industry standards.

RE: ANSI / TPI 1 - 02 Question

Can you upload the figure somewhere so I can take a look at it. I also do not have a copy of TPI1-2002. I've been using 2007 however there is no assurance that my figure D4 is the same as yours. Also if you want to take a look at my truss calculator I've been working on and let me know what you think I would greatly appreciate it:

http://design.medeek.com/calculator/calculator.pl

It is still very much a work in progress. I've been concentrating most of my efforts on the basic "fink" truss since it has been a learning process along the way. The plate calculations are hopefully the next feature that I add.

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