beam cutoff angle
The angle, measured from the principal axis of the intensity of a light source, at which the light source cannot […]
The angle, measured from the principal axis of the intensity of a light source, at which the light source cannot […]
1. A ceiling, usually of wood, made in imitation of exposed floor beams with the flooring showing between. 2. The
The enclosure of a steel beam in concrete or in an exfoliated vermiculite plaster; used to increase the fire resistance
A rod which provides support for steel reinforcement in formwork for a reinforced concrete beam.
1. Boxing-in or covering a joist, beam, or girder to give the appearance of a larger beam. 2. Strips of