A 40m steel tape is suspended in the air between a theodolite and vertical rod, which is placed exactly at the 40m mark, under a pull of 12.5kg. The slope of the measured line is 2-degree 40minutes. The tape weighs 1kg, standard pull of 8.5kg, cross-sectional area of 0.039cm^2 and E= 2x106 kg/cm^2.   Determine the correction for sag of the tape in meter. Determine the horizontal distance between the theodolite and rod in meters. (Apply 5-decimal places - for letter B only) What additional pull must be applied to eliminate the effect of sag

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A 40m steel tape is suspended in the air between a theodolite and vertical rod, which is placed exactly at the 40m mark, under a pull of 12.5kg. The slope of the measured line is 2-degree 40minutes. The tape weighs 1kg, standard pull of 8.5kg, cross-sectional area of 0.039cm^2 and E= 2x106 kg/cm^2.

 

  1. Determine the correction for sag of the tape in meter.
  2. Determine the horizontal distance between the theodolite and rod in meters. (Apply 5-decimal places - for letter B only)
  3. What additional pull must be applied to eliminate the effect of sag?
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