Problem 2. A base line is measured and subsequent calculations show that its total length is 4,638.00 ft. It is later discovered that the tension was recorded incorrectly, the proper figure being 10 lbf less than that stated in the field book, extracts form which are given below. Assuming that the base line was measured in 46 bays of nominal length 100 ft and one bay of nominal length 38 ft, calculate the error incurred in ft. Extract from field notes Standardization temperature = Standardization tension Measured temperature Measured tension = = 50°F 30 lbf 45°F 40 lbf
Problem 2. A base line is measured and subsequent calculations show that its total length is 4,638.00 ft. It is later discovered that the tension was recorded incorrectly, the proper figure being 10 lbf less than that stated in the field book, extracts form which are given below. Assuming that the base line was measured in 46 bays of nominal length 100 ft and one bay of nominal length 38 ft, calculate the error incurred in ft. Extract from field notes Standardization temperature = Standardization tension Measured temperature Measured tension = = 50°F 30 lbf 45°F 40 lbf
Chapter2: Loads On Structures
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![Problem 2. A base line is measured and subsequent calculations show that its total length is
4,638.00 ft. It is later discovered that the tension was recorded incorrectly, the proper figure
being 10 lbf less than that stated in the field book, extracts form which are given below. Assuming
that the base line was measured in 46 bays of nominal length 100 ft and one bay of nominal
length 38 ft, calculate the error incurred in ft.
Extract from field notes
Standardization temperature
Standardization tension
Measured temperature
Measured tension
Young's modulus of tape
Cross-sectional area of tape =
Weight of 1 in³ of steel
=
50°F
30 lbf
45°F
40 lbf
30x106 lbf/in²
0.125 in x 0.05 in
0.28 lbf](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff1ed53ba-d8dc-4e2a-a997-077d4709074c%2F847adc24-2b9f-4eca-ac9c-317686f49501%2Fve9na1_processed.png&w=3840&q=75)
Transcribed Image Text:Problem 2. A base line is measured and subsequent calculations show that its total length is
4,638.00 ft. It is later discovered that the tension was recorded incorrectly, the proper figure
being 10 lbf less than that stated in the field book, extracts form which are given below. Assuming
that the base line was measured in 46 bays of nominal length 100 ft and one bay of nominal
length 38 ft, calculate the error incurred in ft.
Extract from field notes
Standardization temperature
Standardization tension
Measured temperature
Measured tension
Young's modulus of tape
Cross-sectional area of tape =
Weight of 1 in³ of steel
=
50°F
30 lbf
45°F
40 lbf
30x106 lbf/in²
0.125 in x 0.05 in
0.28 lbf
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