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My objective is to be able to calculate only vertical deflection of I-Beams (i.e. knowing which formula to use).
Constants:
Using a pair of I-Beams running parallel to each other with a single load being applied from directly above. The load sits on a steel plate across both Beams that are 4" apart. The Beams are pinned at each end with the single load centered half way (i.e. 12' beams with load applied at 6').
Variables:
The only two shapes of beams being used are S, and occasionally W. The most popular models being S10x35, S15x50, S18x70, and possibly a W12x40.
Beams will have a minimum rating of 50ksi (A992 or A572)
Beam lengths can vary from 8' long to 20'
Total loads vary from 120k to 260k (for the two beams to carry).
Thank you!
![](https://physicsforums-bernhardtmediall.netdna-ssl.com/data/attachments/203/203610-93e1567ce6f652967d048dfe77f0653f.jpg)
Constants:
Using a pair of I-Beams running parallel to each other with a single load being applied from directly above. The load sits on a steel plate across both Beams that are 4" apart. The Beams are pinned at each end with the single load centered half way (i.e. 12' beams with load applied at 6').
Variables:
The only two shapes of beams being used are S, and occasionally W. The most popular models being S10x35, S15x50, S18x70, and possibly a W12x40.
Beams will have a minimum rating of 50ksi (A992 or A572)
Beam lengths can vary from 8' long to 20'
Total loads vary from 120k to 260k (for the two beams to carry).
Thank you!
![](https://physicsforums-bernhardtmediall.netdna-ssl.com/data/attachments/203/203610-93e1567ce6f652967d048dfe77f0653f.jpg)