Answered: 0.477QN Ap = z2 1 N = 2.5ך2 1+ Where:…

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

According to the elastic theory, the vertical stress induced by a point load of magnitude Q on the surface of a semi-infinite soil mass can be estimated by the expression. A point load Q=1500 kN is applied at the ground surface. Evaluate the stress in the soil caused by the point load at a depth of 2.5m directly below the load in kPa. Evaluate the stress at a depth of 2.5m and a horizontal distance of 3m from the point load.

0.477QN
Ap
22
1
N =
2.5 ך2
Where:
r- horizontal distance of the point from the load
z- depth of the point at which the stress is induced

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