Terminology for Tension Structures and Tensile Facades

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Warp Yarn
The long straight yarns in the long direction of a piece of fabric.

Weaving
The process of making a fabric from yarns passing alternately over and under each other.

Weft Yarn
The shorter yarns of a fabric, which usually run at right angles to the warp yarns. Also called the fill yarns.

Weldment
Connection component, usually steel, for the attachment of cables and/or fabric. If may be free-floating or connected to other membranes.

Wicking
The conveying of liquid by capillary action along and through the yarns of the base fabric.

Wire Rope Clip
U-shaped bolt with a special insert, specifically designed to clamp a wire rope to itself when forming a loop end for temporary cables.

Wrinkles
Furrows or ridges on the normally smooth surface of a fabric structure, which are indicative of extreme differences between the principal stresses, typically resulting from a lower stress perpendicular to the furrow.