The plan of a mat foundation is shown in Figure 1. Calculate the soil pressure at points A, B, C, D, E and F. (Note: All column sections are planned to be 450mmX450mm). Determine factor of safety of the Mat.

The plan of a mat foundation is shown in Figure 1. Calculate the soil pressure at points A, B, C, D, E and F. (Note: All column sections are planned to be 450mmX450mm). Determine factor of safety of the Mat.

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

The plan of a mat foundation is shown in Figure 1. Calculate the soil pressure at points A, B, C, D, E and F. (Note: All column sections are planned to be 450mmX450mm). Determine factor of safety of the Mat.

G
0.25 m
550 kN
|660 kN
600 kN
9 m
2000 kN
5.25 m
|2000 kN 1600 kN
10 m 5.25 m
9m
1600 kN
2000 kN
2000 kN
9m
470 kN
550 kN
660 kN
0.25m
H
-10m
10m-
0.25 m
0.25 m

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Step 1 : Diagram

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Step 2 : Details

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Step 3 : Moment about y axis(My)

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Step 4 : Moment about x axis(Mx)

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Step 5 : Pressure on the soil(q)

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Step 6 : Factor of safety

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