Copy of `Corus - Construction industry glossary`

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Corus - Construction industry glossary Category: Architecture and Buildings > Construction industry Date & country: 03/12/2007, UK Words: 319

Blast Protected Structures
Structures constructed in materials that are designed to withstand explosive attack.

British Standard
Document issued by British Standards Institution.

Brittle Fracture
Loss of ductility and strength associated with low temperatures and imperfections

Black Bolts
Normal bolts, usually with no corrosion protection, and grade 4.6.

Billet
Small steel ingot produced for passing through a sections rolling mill.

Bi-Steel
A Corus- patented high performance construction material comprising two steel plates that are permanently connected by transverse bars to form panels which are then filled with ready-mixed concrete.

Backing Strip
A piece of steel used to help form a sound root to a weld.

Backmark
Standard dimensions for drilling holes in angle legs and channel flanges measured from the corner of the angle across the leg to the hole centre. See standard tables.

Bending Moment
The bending moment due to a force (or system of forces) at a cross section is given by the algebraic sum of all moments to one side of the section.

Back To Back
Description of a compound member composed of two angles or channels, adjacent legs or webs fixed together with or without spacers.

Axial
Relating to the longitudinal axis of a member - (axial load, axial tension, axial compression).

Back Gouging
The removal of poor quality root material by disc grinding or arc-air.

Assembly
Prefabricated frame forming a part, or the whole, of a structural frame system.

Arch
Principal load carrying member curved in elevation. Resistance to applied loading, developed by axial thrust and bending. (Two pinned, three pinned, fixed.)

Apex
Highest point on a highest point on a pitched roof (crown, ridge).

Arc-Air
Almost the reverse of welding - an electric arc is formed between work piece and the carbon electrode, and compressed air blasts away the molten metal.

Anti-Attack Vehicle Barriers
Designed to control or prevent vehicle access and to provide protection from explosive attack.

Angle
L shaped hot rolled or cold rolled section having equal or unequal legs (Hot Rolled Angles, see BS4848: Part 4).

Anchorage
Provision of resistance to overturning. Resistance provided by foundations. (Anchor bolt mechanical link between structural frame and foundation.)