Technical Engineering

Cantilever Test

A test designed and conducted to determine the connection moment existing capacity and the rotational rigidity, F, of a beam-to-column connection. The test set-up employs one column segment and one beam segment connected to one another, with a beam-to-column connector and a load applied downwardly in the plane of the frame, at the cantilever end of the beam segment.

Cold-Formed Steel Structural Member 

A steel member shaped by press-braking blanks sheared from sheets, cut lengths of coils or plates, or by roll forming cold or hot-rolled coils or sheets; both forming operations being performed at ambient room temperature (e.g. without manifest addition of heat such as would be required for hot forming).


Structural member that has the primary function of resisting axial force. A roll formed post section with punched key holes used to make an upright.

Competent Person

A person who (a) is qualified because of knowledge, experience, and familiarity with CSA or RMI to organize or perform the work in question; or (b) in the case of safety inspections, has knowledge of any potential or actual danger to health or safety in the workplace.

Concrete Crushing

Limit state of compressive failure in concrete having reached the ultimate strain

Concurrent Forces

Two or more forces acting in conjunction with one another at a single location.


Combination of structural elements and joints used to transmit forces between two or more members.

CWB (Canadian Welding Bureau)

A division of the CWB Group, which is responsible for adherence of companies to an appropriate welding certification standard.

Cyclic Tests

A test designed and conducted to determine the connection moment-resisting capacity and rotational rigidity, along with energy-dissipation properties, of beam-to column connections when those connections are subjected to cyclic loading conditions. The test set-up employs one column segment and two beam segments connected to one another, using two beam-to-column connectors, as a double cantilever. Two parallel loads are applied, in opposing reversing cyclic fashion, in the plane of the frame at the ends of, and normal to, the cantilevered beam elements.


Energy dissipation due to the contents, distinct from that inherent in the rack structure itself.

Design Load

Applied load determined in accordance with either LRFD load combinations or ASD load combinations, whichever is applicable.

Design Strength

Resistance factor multiplied by the nominal strength, [Φ Rn]