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Peric Calc

The document outlines the design specifications for a pad foundation according to BS 8110:1997, detailing materials, dimensions, and bearing pressures. It includes calculations for column reactions, reinforcement requirements, and shear forces. The design is validated and meets the necessary structural requirements.

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makabuto13
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9 views1 page

Peric Calc

The document outlines the design specifications for a pad foundation according to BS 8110:1997, detailing materials, dimensions, and bearing pressures. It includes calculations for column reactions, reinforcement requirements, and shear forces. The design is validated and meets the necessary structural requirements.

Uploaded by

makabuto13
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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REINFORCED CONCRETE

Project SPREADSHEET TO BS 8110 COUNCIL


Client Mrs.Peris Wanjiru Mwaniki Made by Date Page
Location FOUNDATION Single column S.ABUTO 16-Sep-23 -
PAD FOUNDATION DESIGN to BS 8110:1997 base Checked Revision Job No
Originated from RCC81.xls on CD © 1999 BCA for RCC S.O - -

MATERIALS fcu 30 N/mm² h agg 25 mm gc 1.5 concrete


fy 425 N/mm² cover 50 mm gs 1.05 steel
Densities - Concrete 23.6 kN/m³ Soil 18 kN/m³
Bearing pressure 200 kN/m² (net allowable increase)

DIMENSIONS mm
BASE COLUMN
L = 1500 h = 300
B = 1500 b = 200
depth H = 450
ex = 0 ey = 0

COLUMN REACTIONS kN, kNm characteristic Plot (to scale) Key


DEAD IMPOSED WIND
Axial (kN) 400.0
Mx (kNm)
Grnd Brg Pressure 90%
My (kNm)
Hx (kN) Bending fsx 59%
Hy (kN)
(As/Asprov) fsy 49%

STATUS VALID DESIGN Shear v xx 18%

v yy 25%

BEARING PRESSURES kN/m² characteristic punching 34%


CORNER 1 2 3 4
0% 25% 50% 75% 100%
no wind 180.3 180.3 180.3 180.3
with wind 180.3 180.3 180.3 180.3 Efficiency

REINFORCEMENT . .
Mxx = 67.2 kNm Myy = 78.9 kNm
b = 1500 mm b = 1500 mm
d= 394 mm d= 382 mm
As = 444 mm² As = 537 mm²
PROVIDE 8 Y12 @ 200 B1 PROVIDE 8 Y12 @ 200 B2
As prov = 905 mm² As prov = 905 mm²
. .
BEAM SHEAR . .
Vxx = 78.4 kN at d from col face Vyy = 104.5 kN at d from col face
v = 0.133 N/mm² v= 0.182 N/mm²
or Vxx = 0.0 kN at 2d from col face or Vyy = 0.0 kN at 2d from col face
v = 0.000 N/mm² v= 0.000 N/mm²
vc = 0.361 N/mm² vc = 0.367 N/mm²

PUNCHING SHEAR . .
d ave = 388 mm u crit = 3000 mm
As prov = 0.155 % v max = 1.489 N/mm² at col face
v = 0.012 N/mm² vc = 0.364 N/mm²

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