2. As shown in the figure two adjacent foundations A and B, its size, relative position and the distribution of additional pressure on the substrate as shown in the figure, the role of the uniform load on the foundation A and B is POA PO = 100 kPa, find (1) Without considering the effect of foundation B, the additional stress σ under the corner point and center point of foundation A at a depth of 2m. (2) Considering the influence of B foundation, the additional stress at the depth of 2m under the center point of A foundation. . Value of vertical additional stress coefficient under corner points when rectangular area is subjected to uniform load 1 2 0.249 0.249 0.240 0.244 0.223 0.233 0.175 0.200 0.084 0.120 Z/b 0.2 0.4 0.6 1.0 2.0 Ib. E A 2 m |1m| = B 2m 3 m 3 0.249 0.244 0.234 0.203 0.131 4 0.249 0.244 0.234 0.204 0.135
2. As shown in the figure two adjacent foundations A and B, its size, relative position and the distribution of additional pressure on the substrate as shown in the figure, the role of the uniform load on the foundation A and B is POA PO = 100 kPa, find (1) Without considering the effect of foundation B, the additional stress σ under the corner point and center point of foundation A at a depth of 2m. (2) Considering the influence of B foundation, the additional stress at the depth of 2m under the center point of A foundation. . Value of vertical additional stress coefficient under corner points when rectangular area is subjected to uniform load 1 2 0.249 0.249 0.240 0.244 0.223 0.233 0.175 0.200 0.084 0.120 Z/b 0.2 0.4 0.6 1.0 2.0 Ib. E A 2 m |1m| = B 2m 3 m 3 0.249 0.244 0.234 0.203 0.131 4 0.249 0.244 0.234 0.204 0.135
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:2. As shown in the figure two adjacent foundations A and B, its size, relative position and the
distribution of additional pressure on the substrate as shown in the figure, the role of the
uniform load on the foundation A and B is POA
POB = 100 kPa, find
Ов
(1) Without considering the effect of foundation B, the additional stress
point and center point of foundation A at a depth of 2m.
(2) Considering the influence of B foundation, the additional stress at the depth of 2m
under the center point of A foundation.
Value of vertical additional stress coefficient under corner points when rectangular area is
subjected to uniform load
1
2
0.249
0.249
0.240
0.244
0.223
0.233
0.175
0.200
0.084
0.120
zb
0.2
0.4
0.6
1.0
2.0
L/b
A
0
| 2m |10|
=
B
2 m
3 m
3
0.249
0.244
0.234
0.203
0.131
under the corner
4
0.249
0.244
0.234
0.204
0.135
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