A 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees. The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kN My = 65kNm Mx = 40kNm The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the difference between the allowable bearing capacity and the maximum bearing pressure in kPa? 386.079 None of the choices 387.161 388.515 335.987 327.928 Please answer this asap. For upvote. Thank you very much
A 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees. The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kN My = 65kNm Mx = 40kNm The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the difference between the allowable bearing capacity and the maximum bearing pressure in kPa? 386.079 None of the choices 387.161 388.515 335.987 327.928 Please answer this asap. For upvote. Thank you very much
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
A 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees.
The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis
- Vertical axial load = 256kN
- My = 65kNm
- Mx = 40kNm
The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0.
The Meyerhof bearing capacity factors are given below:
What is the difference between the allowable bearing capacity and the maximum bearing pressure in kPa?
386.079
None of the choices
387.161
388.515
335.987
327.928
Please answer this asap. For upvote. Thank you very much
Transcribed Image Text:$ (deg) N.
N
O (deg)
N.
N,
5-14
1.00
0.000
26
22.25
11.85
8.002
5-38
1.09
0.002
27
23.94
13.20
9-463
5.63
28
25.80
1.20
0.010
14.72
11.190
3.
5-90
131
0.023
29
27.86
16.44
13.236
4.
6.19
1.43
0.042
30
30.14
18.40
15.668
6.49
1.57
0.070
31
32.67
20.63
18.668
6.
6.81
1.72
0.106
35-49
23.18
32
22.022
7.16
1.88
0.152
33
38.64
26.09
26.166
8.
7-53
2.06
0.209
34
42.16
29.44
31.145
6.
7-92
2.25
0.280
35
46.12
33-30
37-152
10
8.35
2.47
0.367
36
50.59
37-75
44426
11
8.80
2.71
0.471
37
55,63
42.92
53-270
12
9-28
2.97
0.596
38
61.35
48.93
64.073
13
9.81
3-26
0.744
39
67.87
55-96
7-332
14
10.37
3-59
0.921
40
75-31
64.20
93-690
15
10.98
3-94
1.129
41
83.86
73-90
113.985
16
11.63
434
1.375
42
93-71
85-38
139-985
17
12.34
477
1.664
43
105.11
99.02
171.141
18
13.10
5-26
2.003
44
118.37
115.31
211.406
19
13-93
5.80
2.403
45
133.88
134.88
262.739
14.83
6.40
2.871
46
158.51
328.728
20
152.10
21
15.82
7.07
3-421
47
173.64
187.21
414-322
22
16.88
7.82
4,066
48
199.26
222.31
526.444
23
18.05
8.66
4,824
49
229-93
265-51
674-908
24
19-32
9.60
5-716
50
266.89
319.07
873.843
25
20.72
10.66
6.765
Transcribed Image Text:Shape Factors
Component
For o = 0
For o > 10
Cohesion
Aa =1+0.2
d =1+0.2
tan 45 +
Surcharge
dg = 1
=1+0.1
tan 45 +
Unit Weight
Ayn = 1
Ay = Ag
Depth Factors
Component
For = 0°
For o > 10°
Cohesion
Aed =1+0.2
Aed =1+0.2
tan 45+
Surcharge
Agd = 1
Agr = 1+0.1
tan 45 +
B
Unit Weight
Ayd = 1
Ayd = Agd
Inclination Factors
Component
Formula
Cohesion
di =
90°
Surcharge
90
B- width of the footing
D, = depth of footing
L- length of the footing
Unit Weight
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