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A fracture critical bridge is a bridge or similar span that is vulnerable to collapse of one or more spans as a result of the failure in tension of a single element. While a fracture critical design is not considered unsafe, it is subject to special inspection requirements that focus on the tension elements of its structure.
Honeymoon Bridge (Upper Steel Arch Bridge) Niagara Falls, New York – Niagara Falls, Ontario: United States – Canada 27 January 1938: Steel arch road bridge Ice jam in gorge pushed bridge off foundations 0 killed, 0 injured Bridge completely destroyed Replaced in 1941 by the Rainbow Bridge: Sandö Bridge: Kramfors, Ångermanland: Sweden 31 ...
New York State Barge Canal, Culvert Road (Medina Culvert) Extant Stone arch: 1823 2009 Culvert Road New York State Barge Canal: Ridgeway: Orleans: NY-499: New York State Barge Canal, Prospect Avenue Lift Bridge Extant
Structural fracture mechanics is the field of structural engineering concerned with the study of load-carrying structures that includes one or several failed or damaged components.
The steel used was T1 steel, which in the early 1960s was "innovative material" but is much weaker than modern steel. Classification of the bridge is "fracture critical" because if one part of the bridge should fail, the entire bridge could be at risk.
The building was a composite steel-frame and steel-reinforced concrete design. [18] On August 1, 2007, the I-35W Mississippi River Bridge in Minneapolis, Minnesota collapsed during afternoon rush hour, resulting in the deaths of 13 people. The collapse was attributed to the failure of a gusset plate connecting two members within one of the main ...
"Masonry and Metal: The Historic Bridges of Bergen County, New Jersey" (PDF). Richard Grubb and Associates. 2008. Archived from the original (PDF) on July 10, 2012 This publication lists the wrong date for the swing bridge at New Bridge Landing. Correct date built is February 4, 1889. "National Bridge Inventory Database".
The NBI can classify bridges as "structurally deficient," which means that the condition of the bridge includes a significant defect, which often means that speed or weight limits must be put on the bridge to ensure safety; a rating of 4 or lower on any of items 58, 59, 60, or 62 (deck, superstructure, substructure, and culverts, respectively ...