Formula Used:
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This calculator determines the uniformly distributed load (UDL) on a cable based on the cable tension, sag at midpoint, and cable span. It's particularly useful in structural engineering for analyzing cable-supported structures.
The calculator uses the formula:
Where:
Explanation: This formula calculates the uniformly distributed load that would produce the given cable tension and sag for a specific span length.
Details: Accurate UDL calculation is crucial for designing cable-supported structures, determining appropriate cable specifications, and ensuring structural safety and stability.
Tips: Enter cable tension in Newtons, sag in meters, and cable span in meters. All values must be positive numbers greater than zero.
Q1: What types of structures use this calculation?
A: This calculation is used for suspension bridges, cable roofs, transmission lines, and other cable-supported structures.
Q2: How does sag affect the UDL?
A: Greater sag typically results in higher UDL for the same cable tension, as the formula shows a direct relationship between sag and UDL.
Q3: What are typical units for UDL?
A: UDL is typically measured in Newtons per meter (N/m) or pounds per foot (lb/ft) in imperial units.
Q4: Are there limitations to this formula?
A: This formula assumes ideal cable behavior, perfect flexibility, and neglects cable weight. It works best for cables with relatively small sag-to-span ratios.
Q5: How does cable span affect the UDL?
A: UDL decreases with the square of the cable span, meaning longer spans can support less UDL for the same cable tension and sag.