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The gusset plate is usually painted to match nearby steel and fixtures and to give it an extra layer of protection. [2] Occasionally gusset plates are made from copper or aluminum, but only with small structures that do not require much support. The copper and aluminum gusset plates also provide a more attractive finish for exposed structures. [2]
Harbor Freight Tools won a declassification of the class action; that is, the court found that all the individual situations were not similar enough to be judged as a single class, and that their claims would require an individual-by-individual inquiry, so the case could not be handled on a class basis.
The NTSB said that undersized gusset plates, increased concrete surfacing load, and weight of construction supplies/equipment caused this collapse. 13 killed, 145 injured Total bridge failure Security camera images show the collapse in animation, looking north.
In November 2008, the National Transportation Safety Board determined there had been several reasons for the bridge's collapse, including (but not limited to): faulty gusset plates, inadequate inspections, and the extra weight of heavy construction equipment combined with the weight of rush hour traffic. [13]
Gusset plates, usually triangular, are often used to join metal plates and can be seen in many metal framed constructions. Expanding folders or accordion folders also employ gussets to allow for expansion when containing more than just a few sheets of paper. The gusset is also a charge in heraldry, as is the gyron (an Old French word for gusset).
For instance, two polymer bars could have a polymeric gusset set in before joining them via heating. Or, in woodwork, the gusset could be a stamped metal sheet with screw holes along each side. Also, the hypotenuse of the gusset, or the edge facing away from the joint, can be concave to save material and minimize the profile of the joint.
An AEI tag attached to the side of a freight car. Automatic equipment identification ( AEI ) is an electronic recognition system in use with the North American railroad industry. Consisting of passive tags mounted on each side of rolling stock and active trackside readers, AEI uses RF technology to identify railroad equipment while en route.
The surface plate is often used as the baseline for all measurements to a workpiece, therefore one primary surface is finished extremely flat with tolerances below 11.5 μm or 0.0115 mm per 2960 mm for a grade 0 plate. [2] Surface plates are a common tool in the manufacturing industry and are often fitted with mounting points so that it can be ...
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