A concrete beam of span 15 m, 150 mm and 350 mm m deep is prestressed with a parabolic cable as shown in the figure (not drawn to the scale). Coefficient of friction for the cable is 0.35, and coefficient of wave effect is 0.0015 per metre. Centroidal axis 50 mm 170 mm 7.5m Cable 15m If the cable is tensioned from one end only, the percentage loss (round off to one decimal place) in the cable force due to friction, is

Structural Analysis
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Chapter2: Loads On Structures
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A concrete beam of span 15 m, 150 mm and 350
mm m deep is prestressed with a parabolic cable
as shown in the figure (not drawn to the scale).
Coefficient of friction for the cable is 0.35, and
coefficient of wave effect is 0.0015 per metre.
Centroidal axis
50 mm
170 mm
7.5m
Cable
15m
If the cable is tensioned from one end only, the
percentage loss (round off to one decimal place)
in the cable force due to friction, is
ww 09
Transcribed Image Text:A concrete beam of span 15 m, 150 mm and 350 mm m deep is prestressed with a parabolic cable as shown in the figure (not drawn to the scale). Coefficient of friction for the cable is 0.35, and coefficient of wave effect is 0.0015 per metre. Centroidal axis 50 mm 170 mm 7.5m Cable 15m If the cable is tensioned from one end only, the percentage loss (round off to one decimal place) in the cable force due to friction, is ww 09
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