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While members subject to compressive stress may also fail catastrophically, they typically do not fail from crack initiation. [2] Examples of bridge designs that would typically be considered fracture critical are: Most truss bridges with two main load-bearing assemblies; Two-beam girder bridges (three-beam bridges in California) Two-cell steel ...
The inventory is developed for the purpose of having a unified database for bridges to ensure the safety of the traveling public, as required by the Federal Aid Highway Act of 1968. [1] It includes identification information, bridge types and specifications, operational conditions, bridge data including geometric data and functional description ...
Attempts have been made to increase the safety of bridges with pin and hanger assemblies by adding some form of redundancy to the assembly. Retrofits that add redundancy to pin and hanger assemblies include adding a "catcher's mitt"—a short steel beam attached to the bottom of the cantilevered girder that extends out beneath the suspended girder to "catch" the suspended girder should ...
0 killed, 5 injured, 1 with critical injuries Unknown. No fatalities confirmed. Median column destructed by impact caused by 18.1 ton roll of coiled steel [124] Ramat Elhanan Pedestrian Crossing on Highway 4 Highway 4, between Bnei Brak and Giv'at Shmuel: Israel: 14 August 2017: concrete pedestrian bridge about 19:48 1 killed Vehicle collision ...
[3] [4] [5] The design of tension members requires careful analysis of potential failure modes, specifically yielding (excessive deformation) and fracture, which are referred to as limit states. The governing limit state is the one that results in the lowest design strength, as it dictates the member's capacity and prevents structural failure.
[1] Brittle fractures occur without any apparent deformation before fracture. Ductile fractures occur after visible deformation. Fracture strength, or breaking strength, is the stress when a specimen fails or fractures. The detailed understanding of how a fracture occurs and develops in materials is the object of fracture mechanics.
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The King Iron Bridge & Manufacturing Company was a late-19th-century bridge building company located in Cleveland, Ohio. It was founded by Zenas King (1818–1892) in 1858 and subsequently managed by his sons, James A. King and Harry W. King and then his grandson, Norman C. King, until the mid-1920s. Many of the bridges built by the company ...