4.а.What is the design criteria for shallow foundation?b. Discuss the three types of bearing capacity failures, i.e., General shear failures,Local shear failures and Punching shear failure.c. When is it necessary to employ a mat foundation?d. Compute the allowable bearing capacity using the Terzaghi's equation for thesquare footing (B=1.4m). The soil parameters are listed belowy=18kN/m?, c=20 kN/m?, ysat =20KN/m³, = 22º. The depth of the footing is 1.4meters.The factor of safety is 3.i. The water table is at the depth of 8meters below the bottom of thefoundation.ii. Thedwater table rises to the ground surface.iii. The groundwater table rises to the base of the footing.

ans A shallow foundations have to withstand the applied load without being failed that is bearing…

What is the design criteria for shallow foundation? b. Discuss the three types of bearing capacity failures, i.e., General shear failures, Local shear failures and Punching shear failure. c. When is it necessary to employ a mat foundation?

What is the design criteria for shallow foundation? b. Discuss the three types of bearing capacity failures, i.e., General shear failures, Local shear failures and Punching shear failure. c. When is it necessary to employ a mat foundation?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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.

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4.
а.
What is the design criteria for shallow foundation?
b. Discuss the three types of bearing capacity failures, i.e., General shear failures,
Local shear failures and Punching shear failure.
c. When is it necessary to employ a mat foundation?
d. Compute the allowable bearing capacity using the Terzaghi's equation for the
square footing (B=1.4m). The soil parameters are listed below
y=18kN/m?, c=20 kN/m?, ysat =20KN/m³, = 22º. The depth of the footing is 1.4meters.
The factor of safety is 3.
i. The water table is at the depth of 8meters below the bottom of the
foundation.
ii. The
dwater table rises to the ground surface.
iii. The groundwater table rises to the base of the footing.

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