Collar beam

(redirected from top beam)
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(Arch.) a horizontal piece of timber connecting and tying together two opposite rafters; - also, called simply collar.

See also: Collar

References in periodicals archive ?
Features include four, 8-inch swivel casters with four-position locks, and with optional V-groove casters for track guidance, or an optional lever ratchet for top beam height adjustment.
centers; integral, continuous concrete base and top beam members; and, patent-pending, galvanized steel ShearStrip.
A ceremony was held earlier this month when the top beam was hoisted into place on the 73rd floor.
I noticed a worn-shiny spot on the top beam, just about the size of a narrow cowboy's butt.
RSVP Med Spa uses various techniques such as Q - Switched Laser Technology, Active Q - Switched Mode, Flat Top Beam Technology and Q Plus C for tattoo removal.
went over my head and ran along the top beam of the bridge," he remembered.
A NEW swimming pool is set to make a splash after the top beam was placed on the PS7.
To the right of the fireplace, one of the old doorways can be seen with its curved top beam and old hinges on the door.
With an 11 metre high top beam level, the racking provides 12,600 pallet locations on four beam levels (plus floor level) and pallets are double stacked to reduce the number of beams required.
Floor Surface regularity is the most important aspect for a VNA Racking facility especially when the racking has a top beam height of 15 metres," he explained.
112 Feet from the ground to the top beam of the new press box.
Dimensions of all details are revised in order to set equistable stiffness: thickness of the top beam flange for 1st segment--30 mm, for the rest - 25 mm; thickness of the bottom beam flange is 30 mm for the segments 1 and 2, the rest--25 mm; the I-sectional web thickness of segments 1 and 2 is 14 mm, the rest--12 mm; all stiffening ribs are of 10 mm thickness; joint flange plate thickness between segments 1 and 2 is 25 mm, the rest - 20 mm; openings strengthening ribs on segments 1 and 2 of 14 mm thickness and 200 mm width, in the rest--thickness of 8 mm and width of 100 mm.