For the record, welded wide flanged beams are not the same as a general I beam, but the principle is the same for my comment. A traditional 'I' beam was a rolled single piece of steel that was used in the early to mid 1900's, but as beam loading got bigger, rolling became more difficult and the reliability of rolled beams lessened.the example of welded wide flanged beams are composite beams made from 3 flat thick plates welded together into an 'I' shape. I was making a point about how the design of any material can maximize its strength. Don't over think what I said. I dunno why I even explained myself. ughI'm not an idiot.
Much more informative than the posted article. I'm curious what the engineers who discussed the properties of the bridge earlier in the thread would have to say after reading this?Edit: I see that you were one of the guys discussing it.
Have either of you idiots been on a plastic deck?They are solid as wood. They aren't "pliable". And decking structures are solid, not honeycomb. Why would you think it was if it doesn't say?
you can make fire resistant polymers. and some plastics don't melt at all under heat. Bakelite, while not used anymore, being one example, that stuff cannot melt unless you found some chemical that would attack it.
I was really just responding to people digging down fauxbro. But I do have to say I'm almost positive that 90%+ steel members are still rolled. Composite members are extremely expensive to manufacture relative to rolled steel and are only used in very rare cases where ASTM standard sizes don't meet the needs.Yea... just ignore me, I gotta keep my steel knowledge fresh until I get my PE.
hushpuppy20Sep 25, 2009
Would have been a better headline had it NOT been able to support the tank.
freckleearsSep 25, 2009
For the record, welded wide flanged beams are not the same as a general I beam, but the principle is the same for my comment. A traditional 'I' beam was a rolled single piece of steel that was used in the early to mid 1900's, but as beam loading got bigger, rolling became more difficult and the reliability of rolled beams lessened.the example of welded wide flanged beams are composite beams made from 3 flat thick plates welded together into an 'I' shape. I was making a point about how the design of any material can maximize its strength. Don't over think what I said. I dunno why I even explained myself. ughI'm not an idiot.
beerhoundSep 25, 2009
Much more informative than the posted article. I'm curious what the engineers who discussed the properties of the bridge earlier in the thread would have to say after reading this?Edit: I see that you were one of the guys discussing it.
mogebierSep 25, 2009
Have either of you idiots been on a plastic deck?They are solid as wood. They aren't "pliable". And decking structures are solid, not honeycomb. Why would you think it was if it doesn't say?
orangetideSep 25, 2009
you can make fire resistant polymers. and some plastics don't melt at all under heat. Bakelite, while not used anymore, being one example, that stuff cannot melt unless you found some chemical that would attack it.
orangetideSep 25, 2009
just a fuel spill could possibly dissolve the plastic.
orangetideSep 25, 2009
People have made demonstration bridges out of glass before, as well as fiberglass and other composite materials.
endersaveusSep 25, 2009
I was really just responding to people digging down fauxbro. But I do have to say I'm almost positive that 90%+ steel members are still rolled. Composite members are extremely expensive to manufacture relative to rolled steel and are only used in very rare cases where ASTM standard sizes don't meet the needs.Yea... just ignore me, I gotta keep my steel knowledge fresh until I get my PE.