A 100- m steel tape is used to measure the distance of the line and found to be 1539.28- m long. During measurement, the tape is supported at the ends under a pull of 10- kgs and the observed mean temperature is 31°C. The tape is of standard length at 20 °C and a tension of 12- kgs. The cross sectional area of the tape is 0.035 cm2. The coefficient of linear expansion is 0.0000116/°C and the modulus of elasticity of steel is 2.0 (10)^6 kg/ cm2. The tape weight is equal to 1.5- kg. a) Determine the total correction for temperature. b) Determine the total correction due to tension. c) Determine the total correction due to sag. d) What is the correct length of a line?
A 100- m steel tape is used to measure the distance of the line and found to be 1539.28- m long. During measurement, the tape is supported at the ends under a pull of 10- kgs and the observed mean temperature is 31°C. The tape is of standard length at 20 °C and a tension of 12- kgs. The cross sectional area of the tape is 0.035 cm2. The coefficient of linear expansion is 0.0000116/°C and the modulus of elasticity of steel is 2.0 (10)^6 kg/ cm2. The tape weight is equal to 1.5- kg. a) Determine the total correction for temperature. b) Determine the total correction due to tension. c) Determine the total correction due to sag. d) What is the correct length of a line?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 100- m steel tape is used to measure the distance of the line and found to be 1539.28- m long. During measurement, the tape is supported at the ends under a pull of 10- kgs and the observed mean temperature is 31°C. The tape is of standard length at 20 °C and a tension of 12- kgs. The
cross sectional area of the tape is 0.035 cm2. The coefficient of linear expansion is 0.0000116/°C and the modulus of elasticity of steel is 2.0 (10)^6 kg/ cm2. The tape weight is equal to 1.5- kg.
a) Determine the total correction for temperature.
b) Determine the total correction due to tension.
c) Determine the total correction due to sag.
d) What is the correct length of a line?
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