box beam

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box beam

[′bäks ‚bēm]
(civil engineering)

box beam

One or more vertical plywood webs laminated to seasoned wood flanges. Vertical spacers separate the flanges at intervals along the length of the beam to distribute the loads and to provide stiffness. See also: Beam

box beam, box girder

A hollow beam, usually rectangular in section; if fabricated of steel, the sides are steel plates welded together, or they may be riveted together by steel angles at the corners.
References in periodicals archive ?
Achieving optimum box beam requires bonding two pieces; C-sections may require an EAU.
Once the bridge construction is completed, ODOT will have to routinely inspect and maintain the structure, and much of that will be done from the roadway on the bridge, using hoists to lower workers so they can reach the arches and columns and crawl into the hollow box beams that form much of the decking, Wieseke said.
Our special launching carrier is patented and is the only launching carrier in China today that can go through the tunnels and place box beam segments.
In a side-by-side comparison of a MaineDOT project, a 33-inch (84-centimeter)-deep by 48-inch (122-centimeter)-wide precast concrete box beam weighed about 784 pounds per linear foot (1,167 kilograms per linear meter), while the same depth and width of hybrid composite beam weighed in at 250 pounds per linear foot (372 kilograms per linear meter) with concrete placed in the arch section.
Main picture, an artists' impression of Ty Unnos building; inset, Andy Stewart, from Coed Cymru, at work on the Welsh softwood box beams used in the system
Working by himself or with a few friends, he also erected the four supporting pipe columns, bolted on the roof and floor box beams, and added the roof and floor decks, which extend 2-1/2 feet beyond the columns.
Box beams, perhaps around the perimeter of the upper walls in a ceiling "tray," add new dimensions to a room and allow for built-in lighting effects.
Box beams are 80 percent stronger and I-beams are twice as strong, making twisting or bending nearly impossible.
Tenders are invited for Supply of Vibrating Screen Channels & Box Beams for internal support at CHP-MM TPS Parli-Vaijnath.
The 6 foot deep fabricated box beams will support the roof and create the clear spans over the 25m competition pool.
Called box beams, they're hollow and shaped like a very long box.
Welsh softwood is used to create box beams for the building frame and then pre-insulated infill panels with voids for windows and doors are attached.