The rectangular block of negligible weight is subjected to a vertical force of 40kN, which is applied to its corner. Determine the normal-stress distribution acting on a section through ABCD. 0.8m 0.4m B D 40KN C

The rectangular block of negligible weight is subjected to a vertical force of 40kN, which is applied to its corner. Determine the normal-stress distribution acting on a section through ABCD. 0.8m 0.4m B D 40KN C

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter6: Vertical Stress Increase In Soil

Section: Chapter Questions

Problem 6.4P: Refer to Figure P6.4. A strip load of q = 900 lb/ft2 is applied over a width B = 36 ft. Determine...

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Composite Construction

Composite construction is the construction of structures in which two or more materials are used. Regarding structural engineering, composite construction is a construction where two materials are bound together in a technical manner such that both the materials act as a single unit to carry and transfer the load. The motives of composite construction are to increase the structural strength, make structures more aesthetic, and provide a sustainable environment.

Question

The rectangular block of negligible weight is subjected to a vertical force of 40kN, which is
applied to its corner. Determine the normal-stress distribution acting on a section through
ABCD.
0.8m
0.4m
B
D
40KN
C

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Follow-up Question

How did we derive the 8kN and 16kN. Please show full working out

normal stress = = =
For 8kN maximum stress is,
8x0.2
omax =
MxCx
Ix
omax =
=
MyCx
Iy
40
0.8×0.4
1 -×0.8×0.4²
12
For 16kN, maximum stress :
=
16x0.4
1 -×0.4×0.8²
12
Normal stress at point C is largest,
Oc =
125 - 375 375 = −875kPa
= 125k
25k { c
= 375kPa
= 375kPa

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