Civil and Environmental Engineering 2220A/B Lecture 8: Lecture 8
31 Oct 2018
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Document Summary
All depends on that compressive strength under fc. Wood is our most common fibrous material and therefore when designing, if there is something that we need to be in tension, then we use wood. For something to be in compression, we use steel. Snaps relatively easily to a curved position which will fail faster than if it was in it"s straight form. If we only look at crushing strength, we"re going to overestimate the capacity of that member. An instability failiure is so sudden, and therefore is very dangerous. If you push on the sides of a ruler, everything is fine and dandy until all of a sudden it pops into a that curved position them breaks super fast. Therefore, with our structures, we try to prolong it as long as possible. We also try to give off warning signs like sounds. Some way to warn people that the structure is unsafe, before it collapses.
