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A box girder or tubular girder (or box beam) is a girder that forms an enclosed tube with multiple walls, as opposed to an I - or H -beam. Originally constructed of wrought iron joined by riveting, they are now made of rolled or welded steel, aluminium extrusions or prestressed concrete . Compared to an I -beam, the advantage of a box girder is ...
Single box girder bridge ( steel ), flyover above eastern approach of the San Francisco–Oakland Bay Bridge. A box girder bridge, or box section bridge, is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises prestressed concrete, structural steel, or a composite of steel and ...
Box (torture) The box, also known as a hot box or sweatbox, is a method of solitary confinement used in humid and arid regions as a method of punishment. Anyone placed in one would experience extreme heat, dehydration, heat exhaustion, or even death, depending on when and how long one was kept in the box. Another variation of this punishment is ...
Faraday cage. A Faraday cage or Faraday shield is an enclosure used to block some electromagnetic fields. A Faraday shield may be formed by a continuous covering of conductive material, or in the case of a Faraday cage, by a mesh of such materials. Faraday cages are named after scientist Michael Faraday, who first constructed one in 1836.
40 foot container. A shipping container is a container with strength suitable to withstand shipment, storage, and handling. Shipping containers range from large reusable steel boxes used for intermodal shipments to the ubiquitous corrugated boxes. In the context of international shipping trade, "container" or "shipping container" is virtually ...
The Small Box Girder bridge ( SBG) was a small assault bridge that could be used to span gaps of up to 30 feet. [1] It was typically carried on a tank, such as the Churchill Armoured Vehicle Royal Engineers (AVRE), and could be deployed without engineers having to expose themselves to enemy fire. The design had been formally adopted by the ...