2007-01-13 03:59:16 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
A suspension bridge is best.
2007-01-13 04:02:53 · answer #1 · answered by Gary D 7 · 0⤊ 0⤋
Different designs for "suspension bridges" seem to be the most modern effective bridges. You may want to do some research on the latest technologies or designs of POST MODERN SUSPENSION BRIDGES. Sorry, I don't know what you mean by an upside down bridge.
2007-01-13 12:05:19 · answer #2 · answered by TAHOE REALTOR 3 · 1⤊ 0⤋
I'm glad SOMEBODY knows what a 'regular' bridge is. I spent my whole working life as an engineer and I don't know......!
Any bridge can be made stronger just by adding more steel to it. You didn't say if you were limited in the weight or type of material you could use. That's a whole different (and interesting!) proposition.
Modern bridges are designed by a long string of compromises involving cost, materials, time for completion, political payoffs &c. I doubt your physics class has time for all those variables.....
2007-01-13 16:46:59 · answer #3 · answered by Steve 7 · 0⤊ 1⤋
If properly designed an upright truss bridge should be the same strength as an underslung truss bridge. In the upright, the portion the roadway is on is in tension and the top of the bridge is in compression. In the underslung (upside down) bridge, the roadway is in compression and the lower part is in tension.
2007-01-13 12:12:52 · answer #4 · answered by Mike1942f 7 · 0⤊ 1⤋
It depends on what you want strength or durability. you wont get both. look at roman aquaducts they have lasted 5000 years, most modern bridges wont see 100.
2007-01-19 09:11:29 · answer #5 · answered by Tony N 3 · 0⤊ 0⤋
an upside down one
2007-01-13 12:03:29 · answer #6 · answered by ladysarah 2 · 0⤊ 1⤋
regular i reckon
2007-01-13 12:01:39 · answer #7 · answered by Anonymous · 0⤊ 1⤋