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Sheet Job Number Job Title Client Calcs by Checked by Date Software Consultants (Pty) Ltd Internet: http://www.prokon.com E-Mail : [email protected] Column Base Design : FOOTING F1 C15 Input Data Base length A (m) Base width B (m) Column(s) C (m) D (m) E (m) F (m) Stub column height X (m) Base depth Y (m) Soil cover Z (m) Concrete density (kN/m 3 ) Soil density (kN/m 3 ) Soil friction angle (°) Base friction constant Rebar depth top X (mm) Rebar depth top Y (mm) Rebar depth bottom X (mm) Rebar depth bottom Y (mm) ULS ovt. LF: Self weight ULS LF: Self weight Max. SLS bearing pr. (kN/m²) S.F. Overturning (ULS) S.F. Slip (ULS) fcu base (MPa) fcu columns (MPa) fy (MPa) .9 .9 Col 1 Col 2 .3 .3 1 .3 .75 25 18 22 0.5 75 75 75 75 1 1.4 200 1.5 1.5 30 30 460 Unfactored Loads Load Case Col no. LF ULS ovt LF ULS P (kN) Hx (kN) Hy (kN) Mx (kNm) My (kNm) DL+LL 1 1 1.5 50 1 1 1 1 A X Y Y B C1 D1 P Mx Z Hx Y X BS8110 - 1997 Sketch of Base

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Page 1: Footing f1

SheetJob Number

Job Title

Client

Calcs by Checked by Date

Software Consultants (Pty) LtdInternet: http://www.prokon.comE-Mail : [email protected]

Column Base Design : FOOTING F1 C15

Input Data

Base length A (m)Base width B (m)Column(s)

C (m)D (m)E (m)F (m)Stub column height X (m)Base depth Y (m)Soil cover Z (m)Concrete density (kN/m3)Soil density (kN/m3)Soil friction angle (°)Base friction constantRebar depth top X (mm)Rebar depth top Y (mm)Rebar depth bottom X (mm)Rebar depth bottom Y (mm)ULS ovt. LF: Self weight

ULS LF: Self weightMax. SLS bearing pr. (kN/m²)S.F. Overturning (ULS)S.F. Slip (ULS)

fcu base (MPa)fcu columns (MPa)fy (MPa)

.9

.9Col 1 Col 2

.3

.3

1.3.7525

18220.575

7575751

1.42001.51.5

3030460

Unfactored Loads

Load Case

Colno.

LFULSovt

LFULS

P(kN)

Hx(kN)

Hy(kN)

Mx(kNm)

My(kNm)

DL+LL 1 1 1.5 50 1 1 1 1

A

X

Y

Y

B

C1

D1

PMx

Z

Hx

Y

X

BS8110 - 1997

Sketch of Base

Page 2: Footing f1

SheetJob Number

Job Title

Client

Calcs by Checked by Date

Software Consultants (Pty) LtdInternet: http://www.prokon.comE-Mail : [email protected]

Output for Load Case DL+LL

Output for Load Case DL+LLSoil pressure (ULS) (kN/m²) 180.56Soil pressure (SLS) (kN/m²) 121.86

SF overturning (SLS) 9.41SF overturning (ULS) 9.41Safety Factor slip (ULS) 30.04Safety Factor uplift (ULS) >100

Bottom Design moment X (kNm/m) 5.24Reinforcement X (mm²/m) 56Design moment Y (kNm/m) 5.24

Reinforcement Y (mm²/m) 56Top

Design moment X (kNm/m) 0.00Reinforcement X (mm²/m) 0

Design moment Y (kNm/m) 0.00Reinforcement Y (mm²/m) 0Linear Shear X (MPa) 0.039vc (MPa) 0.412

Linear Shear Y (MPa) 0.039vc (MPa) 0.412Linear Shear Other (MPa) 0.000Punching Shear (MPa) N.A.

vc (MPa) N.A.Cost 0.00

0.90

X

Y

Y

0.9

0

0.30

0.30

PMx

0.7

5

Hx

0.30

1.00

121.86 kN/m²

0.90

X

Y

Y

0.9

0

0.30

0.30

PMx

0.7

5

Hx

0.30

1.00

180.56 kN/m²

Soil Pressures at ULSSoil Pressures at SLS

LegendMax M (+)Max M (-)Max Shear

Load Case:DL+LL

BS8110 - 1997

Page 3: Footing f1

SheetJob Number

Job Title

Client

Calcs by Checked by Date

Software Consultants (Pty) LtdInternet: http://www.prokon.comE-Mail : [email protected]

Schematic reinforcement of Base

5Y12-B-200 (B2)

5Y12-A-200 (B1)

col1

PLAN

SECTION

B B B B B

3R8-H

R8-H

2Y12-G2Y12-F +4Y12-E +

E

E

E

E

F F

G

G

SECTION: col1