Under the corner at point C Under the center D. If another footing of size 3 x 1 m with a total load of 450 kN is constructed adjoining the previous footing, what is the additional stress at point C at the same depth due to the construction of the second footing? Using Newmark's chart, determine the vertical stress due two both footings at a depth of 2.5 m under point E.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Question #3
A total load of 900 kN is uniformly distributed over a rectangular footing of size 3 x 2 m shown
in in Fig. 2. Due to the load on this footing, using influence factors determine the vertical stress
at a depth of 2.5 m
a) Under the corner at point C
b) Under the center D.
c) If another footing of size 3 x 1 m with a total load of 450 kN is constructed adjoining
the previous footing, what is the additional stress at point C at the same depth due to
the construction of the second footing?
d) Using Newmark's chart, determine the vertical stress due two both footings at a depth
of 2.5 m under point E.
C
2 m
3 m
E
3 m
1 m
Transcribed Image Text:Question #3 A total load of 900 kN is uniformly distributed over a rectangular footing of size 3 x 2 m shown in in Fig. 2. Due to the load on this footing, using influence factors determine the vertical stress at a depth of 2.5 m a) Under the corner at point C b) Under the center D. c) If another footing of size 3 x 1 m with a total load of 450 kN is constructed adjoining the previous footing, what is the additional stress at point C at the same depth due to the construction of the second footing? d) Using Newmark's chart, determine the vertical stress due two both footings at a depth of 2.5 m under point E. C 2 m 3 m E 3 m 1 m
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