5 Common Mistakes in Signage Structural Calculations—and How to Avoid Them from yj Inc's blog

Wind load is critical in structural design, especially for freestanding signs. Neglecting to calculate wind load can result in signs that are vulnerable to high winds, potentially causing damage or collapse. To avoid this, always account for regional wind speeds and use precise formulas to calculate wind load effects on the signage.

Many overlook the soil’s properties and foundation stability when designing large or heavy signs. Different soil types have varying bearing capacities, and a weak foundation may fail under the weight of a sign. By conducting a soil analysis and choosing the right foundation type (such as drilled piers or spread footings), you ensure a stable installation.

The strength and durability of materials directly impact a sign’s lifespan and safety. Using materials that cannot withstand local weather conditions or the sign’s weight can lead to structural failures. Avoid this by selecting materials rated for outdoor use, considering corrosion resistance, and factoring in fatigue resistance for materials like steel and aluminum.

Distributing loads incorrectly in calculations can cause a sign structure to become unbalanced. This can lead to issues like uneven stress distribution, potentially making parts of the sign more susceptible to damage. To avoid this, double-check your load distribution across all support points and run calculations multiple times to verify even stress.

Local codes and standards often specify structural requirements for signage based on size, height, and placement. Ignoring these regulations can lead to non-compliance issues, which may result in fines, delays, or even forced removal of the sign. Always review local building codes and engage a certified engineer to ensure compliance with all structural requirements.

Understanding and addressing these five common errors in signage structural calculations is essential for safe and compliant sign installations. By carefully considering wind loads, foundation stability, material strength, load distribution, and local regulations, you’re not only preventing costly mistakes but also creating signage that stands the test of time.

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