suonepunoidations.A rectangular footing (3mx2m) exerts a pressure of 100kN/m2 on a cohesive soil (Es=5x104 kN/m2 and u= 0.5).Solve the immediate settlement at the centre, assuming i)the footing is flexible and ii) the footing is rigid Take If forthe flexible footing is 1.36 and If for rigid footing is 1.06A footing, 2 m square, is founded at a depth of 1.5 m in asand deposit, for which the corrected value of N is 27. Thewater table is at a depth of 2 m from the surface. Solve the6.net allowable bearing pressure, if the permissiblesettlement is 40 mm and a factor of safety of 3 is desiredagainst shear failure.5. against shear failure.Two load tests were conducted at a site - one with a 0.5 msquare test plate and the other with a 1.0m square testplate. For a settlement of 25 mm, the loads were found tobe 60 kN and 180 kN, respectively in the two tests. Solvethe allowable bearing pressure of the sand and the load7.which a square footing of 2 m x 2 m, can carry with thesettlement not exceeding 25 mm.A strip footing of width 2 m is founded at a depth of 2 mbelow the ground surface in a (c - p) soil having a cohesionc = 30 kN/m2 and angle of shearing resistance, p = 35The water table is at a depth of 8 m below ground level.The moist weight of soil above the water table is 17.258.kN/m2.

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A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es35x104 kN/m2 and u= 0.5). Solve the immediate settlement at the centre, assumingi) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06

A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es35x104 kN/m2 and u= 0.5). Solve the immediate settlement at the centre, assumingi) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06

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

suonepunoi
dations.
A rectangular footing (3mx2m) exerts a pressure of 100
kN/m2 on a cohesive soil (Es=5x104 kN/m2 and u= 0.5).
Solve the immediate settlement at the centre, assuming i)
the footing is flexible and ii) the footing is rigid Take If for
the flexible footing is 1.36 and If for rigid footing is 1.06
A footing, 2 m square, is founded at a depth of 1.5 m in a
sand deposit, for which the corrected value of N is 27. The
water table is at a depth of 2 m from the surface. Solve the
6.
net allowable bearing pressure, if the permissible
settlement is 40 mm and a factor of safety of 3 is desired
against shear failure.
5.

against shear failure.
Two load tests were conducted at a site - one with a 0.5 m
square test plate and the other with a 1.0m square test
plate. For a settlement of 25 mm, the loads were found to
be 60 kN and 180 kN, respectively in the two tests. Solve
the allowable bearing pressure of the sand and the load
7.
which a square footing of 2 m x 2 m, can carry with the
settlement not exceeding 25 mm.
A strip footing of width 2 m is founded at a depth of 2 m
below the ground surface in a (c - p) soil having a cohesion
c = 30 kN/m2 and angle of shearing resistance, p = 35
The water table is at a depth of 8 m below ground level.
The moist weight of soil above the water table is 17.25
8.
kN/m2.

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