One of the column of a superstructure with a dimension of (cx x cy)mm is shown below. This column need an isolated footing to support its reaction P. The footing width of the footing is constraint due to adjacent footings. The width of the footing must only be B m. Design the isolated footing. The allowable bearing capacity is qa kPa. The compressive strength of concrete is fc MPa while the yield strength of rebar is fy MPa. Use db mm diameter rebar. The unit weight of overburden soil and concrete is ys kN/m3 and yc kN/m3 respectively. Pdead 150 kN Plive 140 kN B 1.2 m 2 m qa 250 kPa CX 250 mm B су 300 mm It 350 mm kN/m3 kN/m3 MPa MPa soil 18 24 fc 21 fy db 276 16 mm

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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One of the column of a superstructure with a dimension of (cx x cy)mm is shown below.

 

This column need an isolated footing to support its reaction P. The footing width of the footing is constraint due to adjacent footings.

 

The width of the footing must only be B m. Design the isolated footing.

QUESTION 6
One of the column of a superstructure with a dimension of (cx x cy)mm is shown below.
This column need an isolated footing to support its reaction P. The footing width of the footing is constraint due to adjacent footings.
The width of the footing must only be Bm. Design the isolated footing.
The allowable bearing capacity is qa kPa. The compressive strength of concrete is fc MPa while the yield strength of rebar is fy MPa. Use db mm diameter rebar.
The unit weight of overburden soil and concrete is ys kN/m3 and yc kN/m3 respectively.
Pdead
150
kN
Plive
140
kN
1.2
m
d
2
qa
250
kPa
CX
250
mm
су
300
mm
It
350
mm
|kN/m3
kN/m3
soil
18
YC
24
L
fc
21
MPa
MPa
fy
db
276
16
mm
NOTE:
• Round up your calculated L m to tenths place (1.21832 m so use 1.3 m in suceeding calculation)
• If the thickness failed for One-way shear, Two-way shear or both, just mention what resolution must be done in order to pass it then use the given t value for the suceeding calculation.
Transcribed Image Text:QUESTION 6 One of the column of a superstructure with a dimension of (cx x cy)mm is shown below. This column need an isolated footing to support its reaction P. The footing width of the footing is constraint due to adjacent footings. The width of the footing must only be Bm. Design the isolated footing. The allowable bearing capacity is qa kPa. The compressive strength of concrete is fc MPa while the yield strength of rebar is fy MPa. Use db mm diameter rebar. The unit weight of overburden soil and concrete is ys kN/m3 and yc kN/m3 respectively. Pdead 150 kN Plive 140 kN 1.2 m d 2 qa 250 kPa CX 250 mm су 300 mm It 350 mm |kN/m3 kN/m3 soil 18 YC 24 L fc 21 MPa MPa fy db 276 16 mm NOTE: • Round up your calculated L m to tenths place (1.21832 m so use 1.3 m in suceeding calculation) • If the thickness failed for One-way shear, Two-way shear or both, just mention what resolution must be done in order to pass it then use the given t value for the suceeding calculation.
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