= = = A building will have a factored column load of 300 kN. The column is to be supported on a square spread footing underlain by a soil with the follow properties: c' 5 kPa, o' 35⁰, y 18.5 kN/m³. The groundwater table is at a depth of 15 m and the footing will be located 0.5 m below the ground surface. Determine the required footing size if Þ = 0.5. Use Terzaghi's bearing capacity equation for a square footing. Solve for 'B', making sure to use the reduction factor ; trial and error is the easiest way to solve for 'B'. Recommend a "reasonable" dimension for construction/design purposes.

= = = A building will have a factored column load of 300 kN. The column is to be supported on a square spread footing underlain by a soil with the follow properties: c' 5 kPa, o' 35⁰, y 18.5 kN/m³. The groundwater table is at a depth of 15 m and the footing will be located 0.5 m below the ground surface. Determine the required footing size if Þ = 0.5. Use Terzaghi's bearing capacity equation for a square footing. Solve for 'B', making sure to use the reduction factor ; trial and error is the easiest way to solve for 'B'. Recommend a "reasonable" dimension for construction/design purposes.

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

A building will have a factored column load of 300 kN. The column is to be supported on a
square spread footing underlain by a soil with the follow properties: c' = 5 kPa, o'
35°, y = 18.5 kN/m³. The groundwater table is at a depth of 15 m and the footing will be
located 0.5 m below the ground surface. Determine the required footing size if Þ = 0.5. Use
Terzaghi's bearing capacity equation for a square footing. Solve for 'B', making sure to use
the reduction factor Þ; trial and error is the easiest way to solve for 'B'. Recommend a
"reasonable" dimension for construction/design purposes.

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only HANDWRITTEN answer needed ( NOT TYPED)
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Foundation example
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