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

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

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

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