Architectural and Engineering Glossary

B

Building Element

An architectural component of a building,facility,or site.

Building Environment

The combination of conditions that may influence,modify,or other wise affect a person,piece of equipment,or system in a building (for example,lighting,noise,temperature,relative humidity,and/or odors).

Building Frame

The structural framing system of a building having an essentially complete space frame that supports vertical loads.

Building House Drain

A house sewer within a building that conveys sewage in combination with storm water and other clear water wastes.

Building Main

The water supply pipe,including fittings and accessories,from the water main or other source of supply to the first branch of the water distributing system.

Building Maintenance

The actions of ensuring that a building remains in working condition by preserving it from deterioration,decline,or failure.

Building Maisonette

See maisonette.

Building Material

Any material used in construction,such as steel,concrete,brick,masonry,glass,wood,etc.

Building Official

An official designated by the appointing authority,whatever his official title,to enforce the provisions of the applicable building code and other applicable laws.

Building Reconstruction

The reproduction by new construction following the exact form and details of a no longer existing building or artifact as it once appeared.

Building Regulations

British term for building code.

Building Rehabilitation

The returning of a building to a useful state by repair,alteration,and modification.

Building Restriction Line

A line,defined by local ordinances,beyond which structures may not be erected;usually parallel to the street line. 

Building Retrofit

The addition of new building materials,building elements,and components not provided in the original construction. 
 

Building Sanitary Drain

See sanitary drain. 

Building Sanitary Sewer

A building sewer which conveys sewage but does not convey storm water.
 

Building Service Chute

A vertical or inclined tube or channel that conveys and controls the fall of objects such as mail,laundry,and garbage to a lower level.

Building Sewer

That part of the horizontal piping of a drainage system which extends beyond the ends of the building drain and receives the discharge of the building drain and conveys it to a public sewer,private sewer,individual sewage disposal system,or other point of disposal.

Building Society

One of a number of organizations in Britain that finance the purchase of a home in exchange for the purchaser’s down payment cost,plus interest;often backed by an insurance company.

Building Space

The overall space within a building envelope.
 

Building Standards

See building code.

Building Stone

Any stone which may be used in building construction:granite,limestone,marble,etc.

Building Storm Drain

A building drain that conveys only storm water.

Built Beam

Same as built-up beam.

Built On The Job

Fabricated completely on the jobsite,as joinery fabricated from lumber of standard sizes.

Built Up String

A curved stair string formed of wood members fastened together by counter cramps.
 

Built-in

Built as an integral part of a larger construction,as furniture which is especially fitted in a building.

Bulb

In lighting,see lamp bulb,light bulb. 

Bulb Angle

An  angle iron,one side of whichthickens toward the edge,forming a bulbous rib.
 

Bulb Bar

A steel or iron bar,one side of which thickens toward an edge,forming a bulbous rib at that edge.

Bulb Pile

A pedestal pile.

Bulb Shape

See lampbulb.

Bulk Cement

Cement which is transported and delivered in bulk (usually in specially constructed vehicles) instead of in bags.

Bulk Density

The weight of a material (including solid particles and any contained water) per unit volume including voids.

Bulk Excavation

The process of excavating and then moving the excavated material to another location.

Bulkhead Packer

A refuse compactor in which the refuse is compacted within the unit itself,into a specific volume,in one or more bags.

Bulking Value

A measure of the specific gravity of a pigment,usually expressed as gallons per 100 lb or liters per kilogram.
 

Bull Point

A pointed steel hand drill,which is struck with a hammer;used to chip off small pieces of masonry or rock.

Bulldozer

A tractor or other prime mover equipped with a blade attached by arms or brackets to its front end;used in pushing or piling earth or rock.

Bullet Catch

Same as ball catch.

Bullion

Same as bull’s eye.

Bulwark

A strong defensive wall structure,generally low enough to permit defensive fire.

Bumper Bar

See guard bar.

Bumper Guard

See guard bar.

Bund

A continuous,low wall or embankment along a body of water.

Bundle Pier

A Gothic pier in which the plan takes a continuous undulating and breaking out line,giving the appearance of a dense bundle of rising forms rather than the distinct shafts of the compound pier.

Bundled Tubes

Closely spaced columns that are interconnected and used as a building’s outer wall,forming a strong structural system.

Bungaloid House

A house similar in characteristics to a bungalow,but having two stories. 

Bungalow Court

A group of three or more detached,one-story,single family dwellings,arranged with common utilities and accessories under a common ownership.

Bunk

A built-in,usually narrow,bed.