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Jonathan Ochshorn

© 2009 Jonathan Ochshorn.

**Directions:** Enter values for loads and their horizontal positions along the cable, using *any consistent units*. To eliminate a load, set its magnitude to zero. Refer to the diagram for variable names. For example, use ft for distances; use either lb/ft and lb units, or kips/ft and kip units for loads; the reactions will be in either lb or kips, depending on your choice. Loads are assumed to act in a downward direction, with vertical reactions acting in an upward direction and horizontal reactions acting *away from* the cable supports. Upward-acting loads (negative numbers) cannot be used. The vertical sag of the cable (A) must be entered; however, the sag point (C), measured along the horizontal length of the cable, is calculated based on the magnitude and position of the various loads, and cannot be entered.

More detailed explanations and examples can be found in my text.

**Disclaimer:** This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principles. For the design of an actual structure, a competent professional should be consulted.

First posted June 4, 2009 | Last updated June 4, 2009