Download - Foundation(1)
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7/27/2019 Foundation(1)
1/5
FOUNDATION /corner-ftg1.xls
Page 1 of 5
: : :
: : :
: :
1. Material Prop erties
Concrete Compressive Strength, fc' = MPaTensile Strength, fy = MPa
Unit weight of concrete, wc = kN/m3
Unit weight of soil, ws = kN/m3
Allowable bearing capacity, qa = kPa
2. Trial Section
Footing: Column Dimension:
Length L = m Width b = m
Width W = m Thickness s = m
Thickness T = m
Effective depth = m Depth of Soil D = m
3. Loadings
From staad analysis:Column Load = kN
Footing Load, P = Column load + Weight of Ftg. + Weight of soil
= kN
4. Check for Soi l Bearing Capacity
Soil Pressure, qact = P / Area of ftg = kPa < qa OK!
5. Determine th e required reinforcement
5.1 Along long direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (L - b) = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*W*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use maximum steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mm
say, mm
5.2 Along sho rt direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (W - s) = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*L*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mmsay, mm
D E S I G N S H E E TPROJECT 10/22/20132-STOREY RESIDENTIAL UNIT W/ ATTIC DATE
DATELOCATION
FOUNDATIONITEM
ASLDESIGNED BY
CHECKED BY
FILENAMEDESIGN OF CORNER FOOTING
2.00
2.00
0.35
20.70275.80
24.00
18.00
150.00
0.20
0.40
0.28
160.85
1.80
16.00
293.00
397.16
99.29
201.06
16 mm
1.60
127.09
0.00421
0.00508
0.00508
1.43
16 mm
16.00
201.06
50.00
282.00
15.67
0.89
0.00330
0.00508
0.00508
1.43
140.46100.00
1.00
140.46
100.00
50.00
282.00
15.67
1.12
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7/27/2019 Foundation(1)
2/5
FOUNDATION /exterior-ftg1.xls
Page 2 of 5
: : :
: : :
: :
1. Material Prop erties
Concrete Compressive Strength, fc' = MPaTensile Strength, fy = MPa
Unit weight of concrete, wc = kN/m3
Unit weight of soil, ws = kN/m3
Allowable bearing capacity, qa = kPa
2. Trial Section
Footing: Column Dimension:
Length L = m Width b = m
Width W = m Thickness s = m
Thickness T = m
Effective depth = m Depth of Soil D = m
3. Loadings
From staad analysis:Column Load = kN
Footing Load, P = Column load + Weight of Ftg. + Weight of soil
= kN
4. Check for Soi l Bearing Capacity
Soil Pressure, qact = P / Area of ftg = kPa < qa OK!
5. Determine the r equired reinforcement
5.1 Along long direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (L - b) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*W*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use maximum steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mm
say, mm
5.2 Along sho rt direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (W - s) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*L*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mmsay, mm
D E S I G N S H E E TPROJECT 10/22/20132-STOREY RESIDENTIAL UNIT W/ ATTIC DATE
DATELOCATION
FOUNDATIONITEM
ASLDESIGNED BY
CHECKED BY
FILENAMEDESIGN OF EXTERIOR FOOTING 1
2.50
2.50
0.40
20.70275.80
24.00
18.00
150.00
0.20
0.40
0.33
72.81
1.15
16.00
517.10
688.16
110.11
201.06
16 mm
1.05
60.70
0.00107
0.00508
0.00508
1.69
16 mm
16.00
201.06
50.00
332.00
15.67
0.24
0.00089
0.00508
0.00508
1.69
119.30100.00
1.00
119.30
100.00
50.00
332.00
15.67
0.29
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7/27/2019 Foundation(1)
3/5
FOUNDATION /exterior-ftg2.xls
Page 3 of 5
: : :
: : :
: :
1. Material Prop erties
Concrete Compressive Strength, fc' = MPaTensile Strength, fy = MPa
Unit weight of concrete, wc = kN/m3
Unit weight of soil, ws = kN/m3
Allowable bearing capacity, qa = kPa
2. Trial Section
Footing: Column Dimension:
Length L = m Width b = m
Width W = m Thickness s = m
Thickness T = m
Effective depth = m Depth of Soil D = m
3. Loadings
From staad analysis:Column Load = kN
Footing Load, P = Column load + Weight of Ftg. + Weight of soil
= kN
4. Check for Soi l Bearing Capacity
Soil Pressure, qact = P / Area of ftg = kPa < qa OK!
5. Determine the r equired reinforcement
5.1 Along long direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (L - b) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*W*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use maximum steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mm
say, mm
5.2 Along sho rt direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (W - s) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*L*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mmsay, mm
1.18
170.73150.00
1.20
170.73
150.00
50.00
232.00
15.67
0.10
16 mm
16.00
201.06
50.00
232.00
15.67
0.15
0.00054
0.00508
0.00508
201.06
16 mm
0.45
7.84
0.00037
0.00508
0.00508
1.18
0.23
5.44
0.38
16.00
60.31
93.65
77.39
1.10
1.10
0.30
20.70275.80
24.00
18.00
150.00
0.35
0.20
FOUNDATIONITEM
ASLDESIGNED BY
CHECKED BY
FILENAMEDESIGN OF EXTERIOR FOOTING 2
D E S I G N S H E E TPROJECT 10/22/20132-STOREY RESIDENTIAL UNIT W/ ATTIC DATE
DATELOCATION
-
7/27/2019 Foundation(1)
4/5
FOUNDATION /exterior-ftg2.xls
Page 4 of 5
: : :
: : :
: :
1. Material Prop erties
Concrete Compressive Strength, fc' = MPaTensile Strength, fy = MPa
Unit weight of concrete, wc = kN/m3
Unit weight of soil, ws = kN/m3
Allowable bearing capacity, qa = kPa
2. Trial Section
Footing: Column Dimension:
Length L = m Width b = m
Width W = m Thickness s = m
Thickness T = m
Effective depth = m Depth of Soil D = m
3. Loadings
From staad analysis:Column Load = kN
Footing Load, P = Column load + Weight of Ftg. + Weight of soil
= kN
4. Check for Soi l Bearing Capacity
Soil Pressure, qact = P / Area of ftg = kPa < qa OK!
5. Determine the r equired reinforcement
5.1 Along long direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (L - b) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*W*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use maximum steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mm
say, mm
5.2 Along sho rt direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (W - s) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*L*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mmsay, mm
D E S I G N S H E E TPROJECT 10/22/20132-STOREY RESIDENTIAL UNIT W/ ATTIC DATE
DATELOCATION
FOUNDATIONITEM
ASLDESIGNED BY
CHECKED BY
FILENAMEDESIGN OF EXTERIOR FOOTING 3
1.50
1.10
0.30
20.70275.80
24.00
18.00
150.00
0.35
0.20
0.23
15.85
0.58
16.00
112.23
158.24
95.90
201.06
16 mm
0.45
9.71
0.00109
0.00508
0.00508
1.18
16 mm
16.00
201.06
50.00
232.00
15.67
0.13
0.00049
0.00508
0.00508
1.18
170.73150.00
1.20
170.73
150.00
50.00
232.00
15.67
0.30
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7/27/2019 Foundation(1)
5/5
FOUNDATION /wall-ftg.xls
Page 5 of 5
: : :
: : :
: :
1. Material Prop erties
Concrete Compressive Strength, fc' = MPaTensile Strength, fy = MPa
Unit weight of concrete, wc = kN/m3
Unit weight of soil, ws = kN/m3
Allowable bearing capacity, qa = kPa
2. Trial Section
Footing: Column Dimension:
Length L = m Width b = m
Width W = m Thickness s = m
Thickness T = m
Effective depth = m
Depth of Soil D = m
3. Loadings
Column Load = kN
Footing Load, P = Column load + Weight of Ftg. + Weight of soil
= kN
4. Check for Soi l B earing Capacity
Soil Pressure, qact = P / Area of ftg = kPa < qa OK!
5. Determine th e required reinforcement
5.1 Along lo ng direct ion (temperature bars)
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Total reinforcement area:
As = 0.002bt = mm2
Quantitiy of bars using = mm
say, pcs
5.2 Along s hort direct ion
Moment, M = qact (x2)/2 = kN-m
where x = (W - s) / 2 = m
Bar diameter to be used: = mm
Bar area: = mm2
Clear cover: = mm
Provided depth: = mm
m=fy/0.85fc` =
Ru=Mdes/(f*L*depth2) = MPa
Required steel ratio: =
r=1/m{1-sqrt[1-2*mRu/fy)]}
Minimum steel ratio: (1.4/fy) =
Use steel ratio: =
Total reinforcement area:
As = r*depth = mm2/mm
Spacing of bars using = mm
say, mm
D E S I G N S H E E TPROJECT 10/22/20132-STOREY RESIDENTIAL UNIT W/ ATTIC DATE
DATELOCATION
FOUNDATIONITEM
ASLDESIGNED BY
CHECKED BY
FILENAMEDESIGN OF WALL FOOTING
1.00
0.60
0.20
20.70275.80
24.00
18.00
192.00
0.132
16.00
31.65
47.49
79.15
201.06
16 mm
0.40
6.33
400.00
16 mm
16.00
201.06
50.00
132.00
15.67
0.40
0.00148
0.00508
0.00508
0.670
300.07
200.00
1.20
1.99
3
50.00