A square footing 2 m. on a side is founded 1.2 m. below the ground surface for which the bulk unit weight of soil is 20 kN/m³, the cohesion strength is 10 kPa and the angle of internal friction is 15 degrees. Under the condition of general shear failure, evaluate the soil bearing capacity in kPa. Use Terzaghi's bearing capacity factors. O If the ground water table is more than 2 m. below the bottom of the footing. 2 If the ground water table is at the bottom of the footing. ® If the ground water table rises to the ground surface. From table for angle of internal friction of 15°. Ng = 4.45 Ne = 12.86 Ny = 1.52

A square footing 2 m. on a side is founded 1.2 m. below the ground surface for which the bulk unit weight of soil is 20 kN/m³, the cohesion strength is 10 kPa and the angle of internal friction is 15 degrees. Under the condition of general shear failure, evaluate the soil bearing capacity in kPa. Use Terzaghi's bearing capacity factors. O If the ground water table is more than 2 m. below the bottom of the footing. 2 If the ground water table is at the bottom of the footing. ® If the ground water table rises to the ground surface. From table for angle of internal friction of 15°. Ng = 4.45 Ne = 12.86 Ny = 1.52

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.

Question

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A square footing 2 m. on a side is founded 1.2 m. below the ground
surface for which the bulk unit weight of soil is 20 kN/m³, the cohesion
strength is 10 kPa and the angle of internal friction is 15 degrees. Under
the condition of general shear failure, evaluate the soil bearing capacity
in kPa. Use Terzaghi's bearing capacity factors.
O If the ground water table is more than 2 m. below the bottom of the
footing.
2 If the ground water table is at the bottom of the footing.
® If the ground water table rises to the ground surface.
From table for angle of internal friction of 15°.
Ng = 4.45
Nc = 12.86
Ny = 1.52

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