Problem A combined footing supports the given loads as shown. Allowable soil pressure is 270 kPa. Unit weight of soil and concrete are 15.7 kN/m³ and 23.5 kN/m3 respectively. Use f'c = 27.6 MPa and fy = 414.6 MPa. %3D DL = 1070 kN DL = 935 kN LL = 625 kN LL = 715 kN %3D 400 x 400 450 x 450 0.45 m 0.95 m 0.4 m 5.5 m

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A combined footing supports the given loads as shown.
Allowable soil pressure is 270 kPa. Unit weight of soil and
concrete are 15.7 kN/m3 and 23.5 kN/m3 respectively. Use f'c
= 27.6 MPa and fy = 414.6 MPa.
%3D
%3D
DL = 1070 kN
DL = 935 kN
LL = 625 kN
%3D
LL = 715 kN
%3D
400 х 400
450 х 450
0.45 m
0.95 m
0.4 m
5.5 m
Calculate the following:
1. Length of the footing in multiples of 100mm.
2. Width of the footing in multiples of 100mm.
3. Maximum nominal one-way shear stress.
4. Maximum nominal two-way shear stress.
Transcribed Image Text:Problem A combined footing supports the given loads as shown. Allowable soil pressure is 270 kPa. Unit weight of soil and concrete are 15.7 kN/m3 and 23.5 kN/m3 respectively. Use f'c = 27.6 MPa and fy = 414.6 MPa. %3D %3D DL = 1070 kN DL = 935 kN LL = 625 kN %3D LL = 715 kN %3D 400 х 400 450 х 450 0.45 m 0.95 m 0.4 m 5.5 m Calculate the following: 1. Length of the footing in multiples of 100mm. 2. Width of the footing in multiples of 100mm. 3. Maximum nominal one-way shear stress. 4. Maximum nominal two-way shear stress.
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