A strip footing founded on dense sand (p=35° from direct shear tests and yar-17kN/m³), is to be designed to support a vertical load of 400kN per meter length. Determine a suitable width for this footing for FS=3. The footing is located 1 m below the ground surface. The groundwater level is 10 m below the ground surface. Use Meyerhof Eq. but for shape factors to Use DeBeer and for depth factor to use those proposed by Hansen. (use Yo-15.5kN/m³)

A strip footing founded on dense sand (p=35° from direct shear tests and yar-17kN/m³), is to be designed to support a vertical load of 400kN per meter length. Determine a suitable width for this footing for FS=3. The footing is located 1 m below the ground surface. The groundwater level is 10 m below the ground surface. Use Meyerhof Eq. but for shape factors to Use DeBeer and for depth factor to use those proposed by Hansen. (use Yo-15.5kN/m³)

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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Problem 6:
A strip footing founded on dense sand (p =35° from direct shear tests and ysat-17kN/m³), is to
be designed to support a vertical load of 400kN per meter length. Determine a suitable width for
this footing for FS=3. The footing is located 1 m below the ground surface. The groundwater
level is 10 m below the ground surface. Use Meyerhof Eq. but for shape factors to Use DeBeer
and for depth factor to use those proposed by Hansen. (use Yb-15.5kN/m³)

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