11.) To check the setting out of the corners of a 20 x 25 m rectangular building, the diagonals were carefully measured with a 50 m steel tape, and the following results were obtained with the tape pulled at 50 N tension and laid on the ground. Diagonal B1-B3: Tape readings 1.137 and 33.157 m Diagonal B2-B4: Tape readings 0.927 and 32.952 m Using a level, the following staff readings were taken at each corner B1: 2.392 m B2: 1.683 m B3: 1.679 m B4: 1.201 m Immediately following this, the tape was standardized on the 48.125 m site baseline as 48.124 m at 50 N tension. Calculate the errors in the diagonals assuming the ground slopes uniformly along these.
11.) To check the setting out of the corners of a 20 x 25 m rectangular building, the diagonals were carefully measured with a 50 m steel tape, and the following results were obtained with the tape pulled at 50 N tension and laid on the ground. Diagonal B1-B3: Tape readings 1.137 and 33.157 m Diagonal B2-B4: Tape readings 0.927 and 32.952 m Using a level, the following staff readings were taken at each corner B1: 2.392 m B2: 1.683 m B3: 1.679 m B4: 1.201 m Immediately following this, the tape was standardized on the 48.125 m site baseline as 48.124 m at 50 N tension. Calculate the errors in the diagonals assuming the ground slopes uniformly along these.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Note: Where appropriate, assume that Young's modulus (E) for steel is 200 KN mm-2
and the coefficient of thermal expansion of steel (a) is 0.0000112 per °C.
OWN SOLVING AND NOT CHATGPT FOR UPVOTE
Transcribed Image Text:11.) To check the setting out of the corners of a 20 x 25 m rectangular building, the diagonals were carefully
measured with a 50 m steel tape, and the following results were obtained with the tape pulled at 50 N
tension and laid on the ground.
Diagonal B1-B3: Tape readings 1.137 and 33.157 m
Diagonal B2-B4: Tape readings 0.927 and 32.952 m
Using a level, the following staff readings were taken at each corner
B1: 2.392 m B2: 1.683 m B3: 1.679 m B4: 1.201 m
Immediately following this, the tape was standardized on the 48.125 m site
baseline as 48.124 m at 50 N tension.
Calculate the errors in the diagonals assuming the ground slopes uniformly along these.
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