BC Ch. 11 Terms

Aluminum

• Key properties: Lightweight, malleable, nonmagnetic, low melting point, good conductivity.

Angle

• Definition: A steel member with two legs positioned at right angles to each other.

Asphalt Asbestos Protected Metal (AAPM)

• Usage: Combustible asphalt coating for weather protection on galvanized steel walls.

Bar

• Definition: A flat steel plate less than 6 inches in width; can be square or round.

Bar Joist

• Function: A lightweight, long-span system used to support floors and roofing.

Box Column

• Definition: A large hollow column constructed from steel plates.

Box Girder

• Application: Hollow girder primarily utilized for highway bridges.

Bulbtee

• Definition: A tee shape with a thickened end on the cutoff.

Bulkheads

• Purpose: Prevent leakage or fire by dividing a ship into compartments.

Castellated Beam

• Creation: Made by cutting a wide flange beam in a zig-zag pattern and welding it back in an offset manner.

Cement-Asbestos Board

• Use: Noncombustible material often used in friable construction for fireproofing.

Channel

• Definition: A steel component with a square "U"-shaped cross section.

Galvanized Steel Walls

• Characteristic: Made from weatherized steel, capable of conducting heat.

Glass Fiber–Reinforced Plastic

• Definition: Composite material composed of plastic reinforced with glass fibers.

I-Beam

• Shape: Resembles the letter “I,” providing structural support.

Interstitial Space

• Definition: Void space created by deep parallel-chord trusses within a building.

Lattice Column

• Composition: Constructed from vertical units joined by diagonal pieces.

Light Gauge Steel-Framed Wall

• Definition: An exterior wall made with lightweight galvanized steel studs.

Masonry Walls

• Typical Composition: Made of concrete block or a mix of concrete block and brick in unprotected steel-framed buildings.

Metal Panel

• Definition: A prefabricated metal structure, often in sandwich construction, providing insulation and interior finish.

Modulus of Elasticity

• Measurement: Assesses the ability of steel to distort and restore when forces are applied.

Peened

• Definition: Refers to surfaces that have been hammered into a steel column or beam.

Plates

• Definition: Flat pieces of steel used in construction.

Precast Prestressed Concrete Panels

• Definition: Concrete panels manufactured in advance and brought to the construction site.

Purlins

• Function: Beams positioned at right angles to trusses to support lightweight roofing.

Rakers

• Definition: Diagonal columns that provide bracing to entire structures.

Rolled or Built-Up Members

• Definition: Steel structural beams; 'rolled' are single pieces of metal, 'built-up' are made from multiple sections riveted or welded together.

Spandrel Girder

• Purpose: Ties together wall columns within a framed building.

Spandrel Space

• Definition: The area between the top of one window and the bottom of the one above.

Steel Expansion Joints

• Function: Allow for movement of floors to accommodate thermal expansion.

Tee

• Definition: A standard I-beam cut lengthwise through the web to create two “T”-shaped beams.

Tiebacks

• Usage: Cold-drawn steel cables anchored into rock, supporting soil walls against collapse.

Tin Ceiling

• Definition: Embossed steel panels used for ceilings, capable of transferring heat.

Transfer Beam

• Purpose: Relocates vertical loads of columns to create openings in structures.

Triaged

• Meaning: In construction, refers to evaluation and categorization of tasks based on urgency.

Tube

• Definition: A steel structural member rolled into cylindrical, square, or rectangular shapes.

Waler

• Function: A horizontal beam that connects rows of soldier beams in construction.

Wide Flange Shapes

• Definition: I-beams with flanges wider than those of standard I-beams.

Zee

• Definition: A structural member with a “Z”-shaped cross section used in construction.

Test your knowledge on key properties of aluminum and the concept of angles in material science. This quiz covers essential terms and properties that are crucial for understanding construction materials and their applications. Perfect for students in materials science or engineering.