Single Storey Frame - Deflection

[Debra555]

I was wanting to know how to obtain an "approximate" estimate of the frames drift given: UDL on columns + top beam, along with various point loads on columns + beam.

Can any one tell me how to set this up using a drift equation, so that I might obtain a "reasonable" deflection of the frame.

Also what contribution does the UDL + point loads on the beam contribute to the drift?

Thank you very much.
Any reference I might find for frame deflection, other than "classical" approaches?

 

[paddingtongreen]

Being picky, I know, but what is your acceptable tolerance for this approximation. In general, the simpler the method, the greater the inaccuracy.

I don't know of any generalized method for the drift estimate. If I had the job for a specific structure, I would use my judgement to find a good method of getting a reasonable estimate.

You're not very clear on the direction(s) of the loads or the shape of the structure, number of columns, beam levels and connection fixity.

If the beam connections are fixed, loads bunched at either end cause lateral displacement.

I think you should hit the theory of structures books so that you can understand the answers when they get here.

Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin

 

[Debra555]

Thx Paddingtongreen.

Well at this point I am looking for a deflection, or drift for a simple frame (two columns - pin on one side + roller on other). UDL on both columns (either way), and point loads on beam + columns (either way).

Your judgment would be fine here. Can I use a simplified drift equation? If so, how would you arrange the loads?

Yes beam is fixed to column and there are lateral loads.
Yes thank you. Will most certainly understand the solution.

How does the UDL on beam + point loads on beam affect the drift? Is there a simplified equation, based on your judgment and knowledge of the theory, that explains this??

Also is there a relationship, or ratio between the col and beam moment of inertia with respect to the height of the column and length of the beam?

Are there any sights online that may help??

Thx