A cable of a suspension bridge has a span of 80 m, a sag of 8 m and carries a uniform horizontally distributed load of 24 kN/m over the complete span. The cable passes over frictionless pulleys at the top of each tower which are of the same height. If the anchor cables are to be arranged such that there is no bending moment in the towers, calculate the inclination of the anchor cables to the horizontal. Calculate also the maximum tension in the cable and the vertical force on a tower. Ans. 21.8°, 2584.9 kN, 1919.9 kN.
A cable of a suspension bridge has a span of 80 m, a sag of 8 m and carries a uniform horizontally distributed load of 24 kN/m over the complete span. The cable passes over frictionless pulleys at the top of each tower which are of the same height. If the anchor cables are to be arranged such that there is no bending moment in the towers, calculate the inclination of the anchor cables to the horizontal. Calculate also the maximum tension in the cable and the vertical force on a tower. Ans. 21.8°, 2584.9 kN, 1919.9 kN.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A cable of a suspension bridge has a span of 80 m, a sag of 8 m and carries a uniform horizontally
distributed load of 24 kN/m over the complete span. The cable passes over frictionless pulleys at the
top of each tower which are of the same height. If the anchor cables are to be arranged such that there
is no bending moment in the towers, calculate the inclination of the anchor cables to the horizontal.
Calculate also the maximum tension in the cable and the vertical force on a tower.
Ans. 21.8°, 2584.9 kN, 1919.9 kN.
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