Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool- Structural Analysis Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

Structural Analysis

Long wall

Bending Moment

Serviceability Limit State

Mvm(KNm/m) Mvs(KNm/m) Mhm(KNm/m) Mhs(KNm/m)

L1 20.3 38.2 5.7 7.9

L2 30.3 49.2 7 13.9

L3 25 53 5.1 10.4

L1 L2

L3

L1`

Mhs

Mvs

Mhm

Mvm

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool- Structural Analysis Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

Ultimate Limit State

Mvm(KNm/m) Mvs(KNm/m) Mhm(KNm/m) Mhs(KNm/m)

L1 28.5 53.5 7.5 11

L2 42.3 68.9 9.7 19.5

L3 35.3 75.3 7.2 14.6

Short Wall

Serviceability Limit State

Mvm(KNm/m) Mvs(KNm/m) Mhm(KNm/m) Mhs(KNm/m)

Wall 22.5 39.8 5.6 8.2 /-6.6

Ultimate Limit State

Mvm(KNm/m) Mvs(KNm/m) Mhm(KNm/m) Mhs(KNm/m)

Wall 31.6 55.7 7.9 11.5/ -9.3

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool- Structural Analysis Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

Bottom Slab

Serviceability Limit State

Mxm(KNm/m) Mys(KNm/m) Mxm(KNm/m) Mxs(KNm/m)

S1 33.5 58.1 13.9 47.4

S2 28.8 50.1 19.3 41.5

Ultimate Limit State

Mxm(KNm/m) Mys(KNm/m) Mxm(KNm/m) Mxs(KNm/m)

S1 46.9 80 19.6 66.4

S2 40.2 72 27 58

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool- Structural Analysis Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

RHB

table 63

Direct Tension

7.3m

1.5m

ULS

Maximum Water Pressure= 9.81*1.4*1.5= 20.6

Total water load= 0.5*20.6*1.5*7.3

Assuming total load is uniformly distributed,

Intensity of load= 0.5*20.6 = 10.3

R= 0.5*k*(1-0.25k)w(lx)2

= 0.5*1.42*(1-1.42/4)*10.3*1.62 =12.07

Direct tension by long wall= 12.07/1.6 = 7.54 kN/m

SLS

Maximum Water Pressure= 9.81*1.5= 14.72

F

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool- Structural Analysis Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

Assuming total load is uniformly distributed,

Intensity of load= 0.5*14.72 = 7.36

R= 0.5*k*(1-0.25k)w(lx)2

= 0.5*1.42*(1-1.42/4)*7.36*1.62 =8.63

Direct tension by long wall= 8.63/1.6 = 5.4 kN/m

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool - Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

Cl 2.7.6

BS8110

Cl

3.4.4.4

Design of walls

Long wall Design

Thickness of the wall= 200mm

Cover= 40mm

Reinforcements to carry ULS bending moment

Assume main bars to be 25mm and distribution bars to be 12mm in

diameter

d= 200-40-12-25/2 = 135.5 mm

Mvm=42.3 kNm/m

Mvs=75.3 kNm/m

M= 75.3 kNm/m

k=0.156 ( No redistribution)

k= M/(bd2fcu) = 75.3*10^6/(10^3*135.5^2*35)

=0.11< k (Hence no Compression reinforcement needed)

z= d(0.5+(0.25-k/0.9)^0.5) = 0.86d = 0.86*135.5 = 116.5mm

As= M/(0.87*fyz) =73.2*10^6/(0.87*460*116.5) = 1570mm2

No

compres

sion r/f

needed

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool - Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS800-

T3.1

RHB-

T118

BS8007

-B2

R/f to carry ULS direct tension

T=7.54 kN/m

As=7.54*10^3 / (0.87*460)

= 18.8mm2

R/f to carry Vertical Serviceability BM

M(SLS)= 52.2 kNm/m

M/(bd2)= 52.2*106/(103*135.52)=2.8

Allowable steel stress= fst= 130N/mm^2

From design chart,

r= 0.026

fcr= 11.5 N/mm2

r =As/bd

As= 0.026*10^3*135.5 =3523mm2 (At Support)

M= 30.3 kNm/m at span

r= 0.016

As=2032.5mm2

Ultimate stress of concrete= 0.45 fcu = 0.45 *35 =15.8 N/mm2 > fcr = 11.5

Hence Concrete stress is not near the ultimate

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool - Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

T3.1

2.6.2.3

A2

Fig A.1

A.3

R/f to resist serviceability direct tension in mature concrete (SLS)

Allowable steel stress =130 N/mm2

Ast= T/fst = 5.4*10^3/130 = 42 mm2

R/f to resist shrinkage and thermal movement in immature concrete

Minimum Steel ratio in each surface zone is given by

r crit = fct/fy = 0.0035

r = As/(bh)

h= depth of surface zone

h=h/2(h

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool - Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

2.2.3.3.

Using 12mm bars and wmax= 0.2mm

Smax= 0.67*12/(2r)

Smax= Wmax/(2*10^-4)=1000mm

r = 0.67*6/1000 = 0.004

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool - Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS

8007-

2.6.2.3

R/f provided

Max spacing = lesser of 300 and thickness (200mm) =200mm

Spacing

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8110

3.5.5

Checking for Shear

Ultimate shear stress from the SAP analysis long wall= 1020kN/m2

V=1.02 N/mm2

0.8(fcu)^0.5 = 0.8 (35)^0.5 = 4.73 N/mm2

V< 5 or 0.8(fcu)0.5

As= 3776 mm2

100As/bd = 100*3776/(1000*135.5) = 2.7

Vc= 1.2 N/mm2

v

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

Cl 2.7.6

BS8110

Cl

3.4.4.4

Design of walls

Short wall Design

Thickness of the wall= 200mm

Cover= 40mm

Reinforcements to carry ULS bending moment

Assume main bars to be 25mm and distribution bars to be 12mm in

diameter

d= 200-40-12-25/2 = 135.5 mm

Mvm=31.6 kNm/m

Mvs=55.7 kNm/m

M= 55.7 kNm/m

k=0.156 ( No redistribution)

k= M/(bd2fcu) = 55.7*10^6/(10^3*135.5^2*35)

=0.086< k (Hence no Compression reinforcement needed)

z= d(0.5+(0.25-k/0.9)^0.5) = 0.89d = 0.89*135.5 = 121mm

As= M/(0.87*fyz) =55.7*10^6/(0.87*460*121) = 1150mm2

No

compres

sion R/f

needed

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

-T3.1

RHB-

T118

BS8007

-B2

R/f to carry Vertical Serviceability BM

M(SLS)= 39.8 kNm/m

M/(bd2)= 39.8*106/(103*135.52)=2.1

Allowable steel stress= fst= 130N/mm^2

From design chart,

r= 0.02

fcr= 10 N/mm2

r =As/bd

As= 0.02*10^3*135.5 =2710mm2

Ultimate stress of concrete= 0.45 fcu = 0.45 *35 =15.8 N/mm2 > fcr = 10

Hence Concrete stress is not near the ultimate

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

2.6.2.3

A2

Fig A.1

A.3

R/f to resist shrinkage and thermal movement in immature concrete

Minimum Steel ratio in each surface zone is given by

r crit = fct/fy = 0.0035

r = As/(bh)

h= depth of surface zone

h=h/2(h

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

2.2.3.3.

Using 12mm bars and wmax= 0.2mm

Smax= 0.67*12/(2r)

Smax= Wmax/(2*10^-4)=1000mm

r = 0.67*6/1000 = 0.004

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS

8007-

2.6.2.3

R/f provided

Max spacing = lesser of 300 and thickness (200mm) =200mm

Spacing

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

Bottom Slab

Bending Moments (Considering Both Slab 1 and 2)

Short way, edge M1= 80 kNm/m

Short way, Span M4= 46.9 kNm/m

Long way, edge M2= 66 kNm/m

Long way, Span M3=19.6 kNm/m

R/f to carry ULS bending Moment

M/bd^2 100As/bd As R/f

3.6 1 1475 Y20@200 (1570mm2)

2.1 0.55 811 Y20@200 (1570mm2)

3 0.82 1209 Y20@200 (1570mm2)

0.9 0.24 354 Y20@200 (1570mm2)

Max spacing = 3 *effective depth =3*147.5 =442>200mm

3

4

1

2

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

-T3.1

RHB-

T118

BS8007

-B2

R/f to carry Serviceability BM

Along Short Span

M/(bd2)= 58*106/(103*147.52)=2.6

Allowable steel stress= fst= 130N/mm^2

From design chart,

r= 0.025

fcr= 11.5 N/mm2

r =As/bd

As= 0.025*10^3*147.5 =3680mm2

Along Long Span

M/(bd2)= 47*106/(103*147.52)=2.1

Allowable steel stress= fst= 130N/mm^2

From design chart,

r= 0.02

fcr= 10 N/mm2

r =As/bd

As= 0.02*10^3*147.5 = 2950 mm2

Ultimate stress of concrete= 0.45 fcu = 0.45 *35 =15.8 N/mm2 > fcr =

11.5,10

Hence Concrete stress is not near the ultimate

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

2.6.2.3

A2

Fig A.1

A.3

R/f to resist shrinkage and thermal movement in immature concrete

Minimum Steel ratio in each surface zone is given by

r crit = fct/fy = 0.0035

r = As/(bh)

h= depth of surface zone

h=h/2(h

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

BS8007

2.2.3.3.

Using 12mm bars and wmax= 0.2mm

Smax= 0.67*12/(2r)

Smax= Wmax/(2*10^-4)=1000mm

r = 0.67*6/1000 = 0.004

Sheet No:

Project: Proposed 46 storied apartment building in Rajagiriya Project No: 001 Date:

Swimming Pool-Design Calculated by:

CDPGroup-02

Checked

by:

Ref Calculations Output

R/f of the Bottom Slab

At Support along short span:Y25 @ 130mm = 3775mm2/m (Top)

At support along long span: Y25 @ 150mm = 3272 mm2/m (Top)

At span along short span: Y12 @130mm = 870mm2/m (Bottom)

At span along long span: Y12 @130 mm = 870mm2/m (Bottom)

Support Bottom long and short span : Y12 @150mm

At Span top short and long span way : Y12 @150mm