Check the safety of the square footing as given to support the applied axial loads only neglecting the effect of eccentricity, use f'c = 21 MPa fy = 276 MPa and allowable soil pressure = 190 kN/m². Assume a column dimesion of 500 m x 500 mm and depth of embedment = 1.5 m below grade line.

Check the safety of the square footing as given to support the applied axial loads only neglecting the effect of eccentricity, use f'c = 21 MPa fy = 276 MPa and allowable soil pressure = 190 kN/m². Assume a column dimesion of 500 m x 500 mm and depth of embedment = 1.5 m below grade line.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter16: Soil Bearing Capacity For Shallow Foundations

Section: Chapter Questions

Problem 16.13P: A square footing (B B) must carry a gross allowable load of 1160 kN. The base of the footing is to...

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Concept explainers

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.

Question

Compute its bending stresses if it is safe from wide beam shear

Check the safety of the square footing as given to support the
applied axial loads only neglecting the effect of eccentricity, use f'c = 21 MPa
fy = 276 MPa and allowable soil pressure = 190 kN/m². Assume a column dimesion
of 500 m x 500 mm and depth of embedment = 1.5 m below grade line.
m

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D=43KN
| L=55KN
4m
P₂
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WWW
3.5m
D=53KN
| L = 35 KN
10-20mmd
both ways
1.5m
0
3.5m x 3.5m.
square footing
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0
fo
a
TIN V
NGL
LºL
0 0/0/0.
L=10m
beam
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NGL
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