Footing With Strap Beam

Project info: porject.

Data:

Status of designe: Exterior Interior

column load [KN].unfactored [KN].unfactored

column load [KN].unfactored [KN].unfactored Load factor Dista istanc nce e betw betwee een n colu column mn cen cente terr line lines[ s[m] m] Depth of foundation Df [m] Allowa Allowable ble bearin bearing g capa capacit city y of soil soil [KN/s [KN/sq.m q.m]] Width of ext. col. In str strap ap beam beam dire direct ctio ion n [m] [m] Width of ext. col. In direct direct perpe perpendi ndicul cular ar strap strap beam beam [m] Width of int. col. In str strap ap beam beam dire direct ctio ion n [m] [m] Width of int. col. In direct perpendicular perpendicular strap beam [m] Breadth of strap beam [m] Eccentricity of e xteri terior or loa load d from from foo footi ting ng [m] [m] R.C R.C des desig igna nati tion on : Fcu Fcu [N/s [N/sq. q.mm mm]] reinf. Strength : Fy [N/sq.mm] density of soil [KN/cu.m] Calculation:

= = = = = = = = = = = = = =

TRUE

28 4.35

1.5 2.5 1 160 0.3 0.3 0.3 0.3 0.3 0.25 25 460 20

.

Designe of strap beam: Breadth of strap beam [m]

0.3

depth of strap beam from shear d

40.83

Use depth d total depth H

fcu

=

Width Depth

= =

K = M/bd fcu Z  As bottom Design shear

= = = v=

Design concr ete shear vc =

25 N/smm 300 mm

400

fy

N/mm 275.50 mm mm 2.11 0.28 N/mm 0.55 N/mm

TRUE

= 460 N/smm

Max. B.M. Max. S.F.

350 mm 0.01

350

[mm] [mm] [mm]

Mu¯ = Vu = Mu =

9 kNm 25 kN 0 kNm

mm 80.00 Top mm 452 Top mm As provided Diameter of stirr ups mm 6 Spacing of stirr ups r eqd. 377 mm A's r equir ed As r equir ed

0.00

check shear at col face

As prvd. 565% TRUE

No. legs

TRUE

Designe of exterior footing: Net presure under e xt. footing

62.22 [KN/sq.m]

TRUE

2

6 1

4

7

3

2

5

S.F.D

X