Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Measuring site work, Excavation and Piling
Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not…
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PROBLEM 3: Four columns x Five rows of group piles are installed into a uniform clay layer. Clay soil: c=40 kPa, Nc=7.5 Piles: Diameter = 350mm, Length=35m, Pile to pile spacing (center to center)=0.90m, pile edge distance (center of pile to edge of pile cap) =0.75m Pile cap: Thickness=950mm, pile cover=100mm, clear cover=75mm, db=25mm. f'c=28 MPa, fy=420 MPa Hint: Effective depth is found by subtracting the pile cover, clear cover, and half of bar diameter to the thickness. a) Calculate the ultimate capacity of the pile using single pile analysis if alpha = 0.74 b) Calculate the ultimate capacity of the pile using block action if alpha = 0.74 c) Determine the group efficiency using the calculated values above.
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Transcribed Image Text:PROBLEM 3: Four columns x Five rows of group piles are installed into a uniform clay layer. Clay soil: c=40 kPa, Nc=7.5 Piles: Diameter = 350mm, Length=35m, Pile to pile spacing (center to center)=0.90m, pile edge distance (center of pile to edge of pile cap) =0.75m Pile cap: Thickness=950mm, pile cover=100mm, clear cover=75mm, db=25mm. f'c=28 MPa, fy=420 MPa Hint: Effective depth is found by subtracting the pile cover, clear cover, and half of bar diameter to the thickness. a) Calculate the ultimate capacity of the pile using single pile analysis if alpha = 0.74 b) Calculate the ultimate capacity of the pile using block action if alpha = 0.74 c) Determine the group efficiency using the calculated values above.
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Step 1: Introduction :
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Step 2: Given Data :
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Step 3: Ultimate capacity of pile using single pile analysis :
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Step 4: Ultimate capacity of pile using block action :
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Step 5: Group Efficiency of pile
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