Quote:
Originally Posted by xoxoxoBruce
They have finished with the bird shit and are moving to the deicing system next.
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I am still waiting for analysis that includes significant terms such as 'fatigue'. Also troubling is that redundancy did not exist on this bridge. Redundancy is even found in Roebling 1880 bridge - the Brooklyn Bridge.
Rusting is a common problem in so many bridges such as NY's Williamsburg Bridge that was not painted for 30 years. It took a falling structural member to finally get maintenance restarted.
One need only visit Philadelphia to view Interstate 95 some 40 feet above those neighborhoods. Rust is rampant everywhere. Is that 6 or 8 lanes highway ready for collapse?
The Golden Gate Bridge gets repainted constantly. A painting crew is constantly repainting that bridge. With landfall on Marin County, then the painting starts all over again in San Francisco. How many other bridges get that kind of maintenance?
But rust alone typically does not cause fatigue; would be unacceptable long before rust could create fatigue. However this MN bridge had no redundancy. This then begs the question why routine electronic monitoring is not installed on bridges without redundancy.
Questions that we should expect an engineering analysis to answer.