Water Tank Crack Width
COMPUTATION OF CRACK WIDTH (IS 456 - 2000)) THIS APPLIES ONLY FOR CRACK WIDTH OF 0.1 mm PARAMETERS M 20 Grade of conc
Views 105 Downloads 5 File size 11KB
Recommend stories
- Author / Uploaded
- Purnima Arkalgud
Citation preview
COMPUTATION OF CRACK WIDTH
(IS 456 - 2000))
THIS APPLIES ONLY FOR CRACK WIDTH OF 0.1 mm PARAMETERS M 20
Grade of concrete Ec=
22361 Mpa 60.4
MOMENT(KNm)=Md= (NOTE:1 tm=10 KNm )
400
OVERALL DEPTH(mm)=h= WIDTH(mm)=b=
1000
COVER(mm)=c=
50
BAR DIA(mm)=
16 150
BAR SPACING(mm)=s=
2E+05
Es(STEEL)(N/mm2)= (NOTE:1 Kg/cm2=0.1N/mm2)
8.945
MODULAR RATIO=m=
EFFECTIVE DEPTH(mm)=d=
342
AREA OR STEEL(mm2)=As=
1340.4129
NEUTRAL AXIS DEPTH(mm)=x=
79.361
8.945*As/1000*((1+2*1000*342/As/8.945)^0.5-1))
LEVER ARM(mm)=z= (342-x/3)
315.5465
STRESS IN STEEL(N/mm2)=fst=
142.69607
AV STRAIN IN CONCRETE=e1=
0.000871
MODIFIED STRAIN=em=
3.84E-04
acr(mm)= DESIGN CRACK WIDTH(mm)=cw= (AS PER IS 456 - 2000)
86.810337 0.0814