Chapter 2 Flashcards
Arches
Combine the function of a beam and a column.
Attitude
Vertical or horizontal orientation.
Axial Load
Load that passes through the centroid of a section under construction and is perpendicular to the plane of the section.
Bar Joist
Lightweight steel truss joint.
Beam
Structural member that transmits forces perpendicular to such forces to the reaction points.
Bent
A line of columns in any direction.
Braced Frame
Structural system that uses diagonal members to provide bracing against lateral wind and earthquake loads.
Bracket
Diagonal member that supports what would otherwise be a cantilever.
Brick and Block Composite Wall
Consists of an exterior wythe of brick directly mortared or parged to an inner wythe of concrete masonry unit.
BTU
The quantity of heat required to raise the temp of 1 pound of water 1 degree F.
Built-up Girder
Made of steel plates and angles riveted together, as distinguished from one rolled from one piece of steel.
Buttress
Mass of masonry built against a wall to strengthen it. Necessary when a vault or an arch places a heavy load or thrust on one part of a wall.
Caloric Value
Measured in BTU. The amount of heat required to raise 1 pound of water 1 degree F.
Camber
Upward rise.
Cantilever Beam
A beam supported at one end only, rigidly held in position at that end.
Cantilevered
Supported by a cantilever.
Cavity or Hallow Wall
A wall built of two wythes separated by a space for rain drainage or insulation.
Centroid
The center point at which a body would be stable, or balance, under the influence of gravity.
Chord
The outside members (top and bottom) of a truss, as opposed to the inner webbed members.
Column
A structural member that transmits a compressive force along a straight path in the direction of the member.
Composite
Built up of different parts, pieces, or materials
Composite Wall
A wall composed of two or more masonry materials that react together under load.
Compression
Direct pushing force, in line with the axis member; the opposite of tension
Concentrated load
A load acting on a very small area of the structure’s surface; the exact opposite of a distributed load