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.
The initial site preparation work will take approximately four to eight weeks and will include debris removal, engineering and surveying work, delivery of construction materials, as well as protection of the box beam columns of the original Twin Towers.
Downlighters pick out the tall cable masts while concealed fittings on the balustrades and soffits diffuse shafts of light through the timber decking to illuminate the skeletal whalebone structure of the box beam.
For a distinctive transition between the two rooms and to provide for the ductwork, Hoyt designed a 24-inch-wide box beam to span the study entrance.
The stabilizer is a multi-cell box beam structure, comprised of four full span internal spars.
The existing structure is a single span adjacent concrete box beam structure that is approximately 76 feet long and 58 feet wide.
The cables - 42 of them for the 4-foot box beam - are attached to hydraulic jacks that stretch them with a total of 1.
Description : The proposed project consists of the replacement of an existing steel girder bridge with a new concrete spread box beam bridge.
On the I-90 portion of the work, the contract calls for the joint venture to construct approximately 1,600 linear feet of varying width cut-and-cover reinforced concrete highway tunnel and boat sections; 1,600 linear feet of steel and precast box beam bridges; and 9,700 linear feet of surface roadway and an above-ground reinforced concrete transitway station structure, including finishes.
Improvements include the reconstruction of the existing four-lane cross-section, which will involve replacement of the existing Bailey Bridge carrying the northbound lanes over Stony Creek and replacement of the box beam structure carrying the southbound lanes over Stony Creek.