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Term Definition
Beam Rail. A solid wood band attached to a horizontal structural member.  
Beam, Bond. A reinforced horizontal concrete masonry or concrete beam installed in place to strengthen a masonry wall and tie a masonry wall together.  
Beam, Concrete. A horizontal structural member which transversely supports a load and transfers the load to vertical members, made of a composite material consisting of sand, coarse aggregate, cement and water.  
Beam, Grade. An end-supported horizontal load-bearing foundation member that supports an exterior wall or other building load.  
Beam, Precast. A concrete horizontal structural member that is cast and cured in other than its final position, on- or off-site.  
Beam, Reinforcing. A horizontal member installed to strengthen and support the load of a structure.  
Beam, Sheetrock. A horizontal member constructed of plasterboard.  
Beam. A straight structural member that acts primarily to resist transverse loads; a structural element which sustains transverse loading and develops internal forces of bending and shear in resisting the loads; an inclusive term for joists, girders, rafters, and purlins.  
Bearding. In carpeting, long fiber fuzz occurring on some loop pile fabrics, caused by fibers snagging and loosening due to inadequate anchorage.  
Bearing Block. A piece of wood fastened to a column to provide support for a beam or girder.  
Bearing Capacity. Allowable bearing capacity; the maximum allowable load on a structural element.  
Bearing Pad. A block of metal, plastic, or synthetic material used to cushion the point at which one structural element rests upon another.  
Bearing Partition. A partition that supports any vertical load in addition to its own weight.  
Bearing Plate. A plate placed under a truss, beam, girder, or column to distribute the load.  
Bearing Wall. A wall which supports any vertical loads in addition to its own weight.  
Bearing. 1. Part of a machine that supports and aligns a rotating or other moving part. 2. That part of a lintel, beam, girder or truss, which rests upon a column, pier or wall.  
Beating Block. A wooden block used to embed tiles in a flat plane; the method used is called beating in.  
Becquerel. A unit for measuring radiation from radium and radon.  
Bed Coat. See Bedding Coat.  
Bed Joint. The horizontal layer of mortar in which a masonry unit is set.  
Bed Mold. A flat area in a cornice, designed to have enrichment planted later; also called Bed.  
Bed Molding. A molding in an angle, as between the overhanging cornice or eaves of a building and the sidewalls.  
Bed. 1. The horizontal surface on which the bricks of a wall lie in courses, also the mortar on which the brick rests. 2. See Bed Mold.  
Bedding Plane. A separation or weakness between two layers of rock, caused by changes during the building up of the rock- forming material.  
Bedding. 1. A filling of mortar, putty, or other substance in order to secure a firm bearing. 2. Ground or supports in which pipe is laid.  
Bedding Coat. 1. In gypsum board, the first coat of joint compound over tape, bead, and fastener heads; also called Bed Coat. 2. That coat of plaster to receive aggregate or other decorative material of any size, impinged or embedded into its surface before it sets.  
Bedrock. A solid layer or stratum of rock beneath ground level; solid rock as distinguished from boulders.  
Bedroom. A room for sleeping.  
Beeswax. Wax produced by honey bee.  
Behavioral Aspects of Management. These include human relations, cooperation, responsibility, communication and executive ability.  

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