Take a yardstick place it on it’s edge with two pencils placed perpendicular to the yardstick, one pencil at the 1-inch point, and the other pencil at the 35-inch point. Place your pointer finger on the top edge of the yardstick at the 18-inch mark then push down. Which way will it move? It may go straight down a little, but it will move to one side or the other. That is exactly how a beam will fail under load. The wider / heavier the flanges are the more resistance to side movement / failure there is.
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04-20-2010, 05:47 PM #19Senior Member
- Join Date
- Jul 2006
These are "my" views based only on “my” experiences in “my” little bitty world.