Guy wires transfer some of a tall structure's weight to the ground off to the side through their stress. One of the wire's ends connects to a high point on the structure, while the other anchors into the ground. The entire wire setup creates a diagonal line that helps secure the structure from the foundation all the way up.
Historically, guy wires have been essential for stabilizing tall structures. The term “guy wire” derives from the French word “guie,” which means “to guide.” In the 1600s, Dutch sailors adopted the term “gei,” referring to the ropes that stabilized ship masts. The name later evolved into “guy.”
Guy wire usage expanded with advancements in materials like high-tensile steel. Since guy wires stabilize structures and transfer their weight, installing them at the proper tension is crucial.
Tensioning wires too tight may cause compression failure in a structure, causing it to buckle and even collapse from too much pressure. High tension can also make the wires vibrate during heavy wind or earthquakes, inducing excessive wear and tear on wire and structure components.
A wire that's too loose — meaning a sagging wire — can gallop or move with the wind and other weather events, which can become an issue if it contacts nearby objects or if the excessive movement places stress on the structure's operating components. Loose guy wires also raise the risk of mechanical failure and fatigue damage and can even cause structural insecurities.
For best tension results, only use high-quality products, and always enlist the help of a professional. Routinely check your guy wires' tensions to ensure your commercial structures are as stable as possible, and adjust the tension as needed.
