Tendon Failure Raises Questions about Grout in Posttensioned Bridges

摘要

The collapse in August of the Minneapolis bridge that carried Interstate 35W over the Mississippi has trained a spotlight on the decaying state of the nation's infrastructure and aroused concern about the efficacy of the nation's current bridge inspection program. But a recent problem discovered on a cable-stayed bridge in Virginia provides an example of how regular bridge inspections can prevent tragedies.