Curve in the figure has been obtained from a static load test on a 60 ft long, 12-in circularsolid concrete pile. Using Davisson method, compute the nominal downward axial loadcapacity. Hint: units should be consistent.Settlement, & (mm)102030405060700Applied Downward Load, P (kN)50010001500

Answered: Curve in the figure has been obtained…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Curve in the figure has been obtained from a static load test on a 60 ft long, 12-in circular
solid concrete pile. Using Davisson method, compute the nominal downward axial load
capacity. Hint: units should be consistent.
Settlement, & (mm)
10
20
30
40
50
60
70
0
Applied Downward Load, P (kN)
500
1000
1500

Expert Solution

Step 1

Given:-

$Length of pile = 60 ft Diameter of pipe = 12 in$

To find:-

Nominal downward axial load capacity

Concept:-

Davisson method:-

Nominal axial load capacity of pile is given as

$δ = 4 mm (0.15 in) + \frac{B}{120} + \frac{PD}{AE} - - - - - (1) Where δ = Pile settlement at nominal axial load B = Diameter of pile P = Axial load D = Depth of pile A = Cross sectional area of pile E = Modulus of elasticity of pile$

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