Bridge Collapses as Motivation
Sometimes its useful to re-motivate ourselves. A sobering TIME magazine photo-essay reminds us why we research and try to continually improve the design process:
The Worst Bridge Collapses in the Past 100 Years
Mianus Bridge, Greenwich, Conn. (June 28, 1983)
Another collection is here:
http://www.environmentalgraffiti.com/news-seven-quaking-bridges-collapsed-costing-lives
« Webcast of 4-Span Bridge Earthquake Test
Comments
Comment from Colin
Time: 3 October, 2010, 14:27
Julio,
You’re correct – it is a typo. The line above this should be 72R-900 = 6(720-36R). 18.13 kN is the correct result.
Comment from Colm Saunders
Time: 23 March, 2011, 21:42
Colin – I drive across this bridge every day. Its looking better than that photo you posted!
Comment from julio vivero
Time: 2 October, 2010, 21:56
something is erroneus in the paper
Analysis Structural III ( page 46 )
your calculate gived R = 18.13 KN and answer give me 23.56 KN
please your response
student julio vivero