13-7 A long strip footing 1.25 m wide is used to sup- port the perimeter masonry bearing walls for a warehouse building. The soil underlying the building area is a clay where the undrained shear strength is 40 kPa (use zero for the angle of in- ternal friction), and the soil unit weight is 16 kN/m³. The rigidity index for the clay is 9. The foundation is constructed 1 m below the ground surface, and the soil backfill is well compacted. Applying the extended bearing capacity equation with a factor of safety of 3, calculate the maxi- mum load to be carried by the foundation, per meter of length.

13-7 A long strip footing 1.25 m wide is used to sup- port the perimeter masonry bearing walls for a warehouse building. The soil underlying the building area is a clay where the undrained shear strength is 40 kPa (use zero for the angle of in- ternal friction), and the soil unit weight is 16 kN/m³. The rigidity index for the clay is 9. The foundation is constructed 1 m below the ground surface, and the soil backfill is well compacted. Applying the extended bearing capacity equation with a factor of safety of 3, calculate the maxi- mum load to be carried by the foundation, per meter of length.

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

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

13-7 A long strip footing 1.25 m wide is used to sup-
port the perimeter masonry bearing walls for a
warehouse building. The soil underlying the
building area is a clay where the undrained shear
strength is 40 kPa (use zero for the angle of in-
ternal friction), and the soil unit weight is 16
kN/m³. The rigidity index for the clay is 9. The
foundation is constructed 1 m below the ground
surface, and the soil backfill is well compacted.
Applying the extended bearing capacity equation
with a factor of safety of 3, calculate the maxi-
mum load to be carried by the foundation, per
meter of length.

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