Select the influence coefficient/influence factor from the chart below for a point 10ft below and 2.5 ft radially from the center of a circular footing with a diameter of 10ft. Be sure to click directly on the number. Table 6-1 Influence Coefficients for Points under Uniformly Loaded Circular Area za (1) 0.25 0.50 0.75 1.00 1.25 1.50 1.75 0 (2) 2.00 2.5 3.0 4.0 5.0 7.0 10.00 0.986 0.911 0.784 0.646 0.25 (3) 0.983 0.895 0.762 0.625 0.508 0.50 (4) 0.964 0.840 0.691 0.560 0.455 0.374 0.309 0.258 0.186 0.137 1.0 (5) 0.083 0.056 0.029 0.014 0.460 0.418 0.374 0.335 1.5 (6) 0.295 0.256 0.223 0.015 0.060 0.105 0.125 0.135 0.137 0.135 ra 0.127 0.109 0.091 0.061 0.045 0.026 0.013 2.0 (7) 0.524 0.424 0.413 0.346 0.336 0.284 0.277 0.194 0.200 0.196 0.150 0.146 0.143 0.117 0.087 0.086 0.076 0.057 0.057 0.052 0.030 0.030 0.028 0.015 0.015 0.014 Source: Spangler, M. G. and R. L Handy, Soil Engineering. 3rd ed., Intext Educational Publishers, New York, 1973. 0.002 0.010 0.025 0.043 0.057 0.064 0.071 0.073 0.073 0.066 2.5 (8) 0.052 0.039 0.024 0.013 0.000 0.003 0.010 0.016 0.023 0.029 0.037 0.041 0.044 0.045 0.041 0.033 0.021 0.013 3.0 (9) 0.000 0.000 0.002 0.007 0.010 0.013 0.018 0.022 0.028 0.031 0.031 0.027 0.019 0.012 3.5 (10) 0.000 0.000 0.000 0.003 0.005 0.007 0.009 0.012 0.017 0.022 0.024 0.022 0.016 0.012 4.0 (11) 0.000 0.000 0.000 0.000 0.001 0.002 0.004 0.006 0.011 0.015 0.018 0.018 0.015 0.011
Select the influence coefficient/influence factor from the chart below for a point 10ft below and 2.5 ft radially from the center of a circular footing with a diameter of 10ft. Be sure to click directly on the number. Table 6-1 Influence Coefficients for Points under Uniformly Loaded Circular Area za (1) 0.25 0.50 0.75 1.00 1.25 1.50 1.75 0 (2) 2.00 2.5 3.0 4.0 5.0 7.0 10.00 0.986 0.911 0.784 0.646 0.25 (3) 0.983 0.895 0.762 0.625 0.508 0.50 (4) 0.964 0.840 0.691 0.560 0.455 0.374 0.309 0.258 0.186 0.137 1.0 (5) 0.083 0.056 0.029 0.014 0.460 0.418 0.374 0.335 1.5 (6) 0.295 0.256 0.223 0.015 0.060 0.105 0.125 0.135 0.137 0.135 ra 0.127 0.109 0.091 0.061 0.045 0.026 0.013 2.0 (7) 0.524 0.424 0.413 0.346 0.336 0.284 0.277 0.194 0.200 0.196 0.150 0.146 0.143 0.117 0.087 0.086 0.076 0.057 0.057 0.052 0.030 0.030 0.028 0.015 0.015 0.014 Source: Spangler, M. G. and R. L Handy, Soil Engineering. 3rd ed., Intext Educational Publishers, New York, 1973. 0.002 0.010 0.025 0.043 0.057 0.064 0.071 0.073 0.073 0.066 2.5 (8) 0.052 0.039 0.024 0.013 0.000 0.003 0.010 0.016 0.023 0.029 0.037 0.041 0.044 0.045 0.041 0.033 0.021 0.013 3.0 (9) 0.000 0.000 0.002 0.007 0.010 0.013 0.018 0.022 0.028 0.031 0.031 0.027 0.019 0.012 3.5 (10) 0.000 0.000 0.000 0.003 0.005 0.007 0.009 0.012 0.017 0.022 0.024 0.022 0.016 0.012 4.0 (11) 0.000 0.000 0.000 0.000 0.001 0.002 0.004 0.006 0.011 0.015 0.018 0.018 0.015 0.011
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Select the influence coefficient/influence factor from the chart below for a point 10ft below and 2.5 ft radially from the center of a circular footing with a diameter of 10ft. Be
sure to click directly on the number.
Table 6-1 Influence Coefficients for Points under Uniformly Loaded Circular Area
z/a
(1)
0.25
0.50
0.75
1.00
1.25
1.50
1.75
0
(2)
2.00
2.5
3.0
4.0
5.0
7.0
10.00
0.986
0.911
0.784
0.646
0.25
(3)
0.983
0.895
0.762
0.625
0.508
0.50
(4)
0.413
0.336
0.277
0.196
0.143
0.964
0.840
0.691
0.560
0.455
0.374
0.309
0.258
0.186
0.137
1.0
(5)
0.083
0.056
0.029
0.014
0.460
0.418
0.374
0.335
0.295
0.256
0.223
1.5
(6)
0.194
0.150
0.117
0.015
0.060
0.105
0.125
0.135
0.137
0.135
0.524
0.424
0.346
0.284
0.200
0.146
0.087
0.086
0.076
0.052
0.057
0.057
0.052
0.039
0.030
0.030
0.028
0.024
0.015
0.015
0.014
0.013
Source: Spangler, M. G. and R. L Handy, Soil Engineering, 3rd ed., Intext Educational Publishers, New York, 1973.
ra
0.127
0.109
0.091
0.061
0.045
0.026
0.013
2.0
(7)
0.002
0.010
0.025
0.043
2.5
(8)
0.057
0.064
0.071
0.073
0.073
0.066
0.000
0.003
0.010
0.016
0.023
0.029
0.037
0.041
0.044
0.045
0.041
0.033
0.021
0.013
3.0
(9)
0.000
0.000
0.002
0.007
0.010
0.013
0.018
0.022
0.028
0.031
0.031
0.027
0.019
0.012
3.5
(10)
0.000
0.000
0.000
0.003
0.005
0.007
0.009
0.012
0.017
0.022
0.024
0.022
0.016
0.012
4.0
(11)
0.000
0.000
0.000
0.000
0.001
0.002
0.004
0.006
0.011
0.015
0.018
0.018
0.015
0.011
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