A square column foundation (Figure 6.12) is to be constructed on a sand deposit. The allowable load Q will be inclined at an angle B = 20° with the vertical. The standard penetration numbers Ngo obtained from the field are as follows. Determine Q. Use Eq. (6.28). FS = 3 Eq. (6.28). qu = c'NFFoaFa + qN‚F„Fq«Fqi + >¥BN,F,„FyaFyi Depth (m) 1.5 3 3.0 6. 4.5 9 6.0 10 7.5 10 9.0 8 20 0.7 m c = 0 y= 18 kN/m? B = 1,25 m H FIGURE 6.12
A square column foundation (Figure 6.12) is to be constructed on a sand deposit. The allowable load Q will be inclined at an angle B = 20° with the vertical. The standard penetration numbers Ngo obtained from the field are as follows. Determine Q. Use Eq. (6.28). FS = 3 Eq. (6.28). qu = c'NFFoaFa + qN‚F„Fq«Fqi + >¥BN,F,„FyaFyi Depth (m) 1.5 3 3.0 6. 4.5 9 6.0 10 7.5 10 9.0 8 20 0.7 m c = 0 y= 18 kN/m? B = 1,25 m H FIGURE 6.12
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A square column foundation (Figure 6.12) is to be constructed on a sand deposit. The
allowable load Q will be inclined at an angle B = 20° with the vertical. The standard
penetration numbers Ngo obtained from the field are as follows. Determine Q. Use
Eq. (6.28).
FS = 3
Eq. (6.28).
qu = c'NFFoaFa + qN‚F„Fq«Fqi + >¥BN,F,„FyaFyi
Depth (m)
1.5
3
3.0
6.
4.5
9
6.0
10
7.5
10
9.0
8
20
0.7 m
c = 0
y= 18 kN/m?
B = 1,25 m H
FIGURE 6.12
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