A 3-m 150 mm CHB wall rests on a 600 mmthick concrete footing. The CHB wall weighs3.3 kN/m2 and will carry a construction liveload of 20 kN per meter length of wall. Unitweight of concrete 24 kN/m3 , Unit weight ofsoil 18 kN/m³ ,,fc' = 28 MPa, fy = 248 MPa.%DSteel cover to bar centroid is 90mm.+ PL600 mmDetermine the effective soil pressure if thesoil bearing capacity is 130 kPa and the topof the footing is 1.0m from the NGL.Determine the required width of the footing.Determine the magnitude of critical momentat the footing and the spacing of the 16 mmbars.3 m1 m

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Answered: 3-m 150 mm CHB wal ick concrete…

Engineering

Civil Engineering

3-m 150 mm CHB wal ick concrete footing. 3 kN/m2 and will carry ad of 20 kN per meter

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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Question

100%

A 3-m 150 mm CHB wall rests on a 600 mm
thick concrete footing. The CHB wall weighs
3.3 kN/m2 and will carry a construction live
load of 20 kN per meter length of wall. Unit
weight of concrete 24 kN/m3 , Unit weight of
soil 18 kN/m³ ,,fc' = 28 MPa, fy = 248 MPa.
%D
Steel cover to bar centroid is 90mm.
+ PL
600 mm
Determine the effective soil pressure if the
soil bearing capacity is 130 kPa and the top
of the footing is 1.0m from the NGL.
Determine the required width of the footing.
Determine the magnitude of critical moment
at the footing and the spacing of the 16 mm
bars.
3 m
1 m

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