DmTank Ring Wall Foundation+&+Annular+Raft

No. 1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Mark DSW DSA LL EQE EQO EQT W EQ IPO IPT FSL

Unfactored Load Item 701 A1-1 702 A1-2 703 A2-1 704 A2-2 705 B1-1 706 B1-2 707 B2-1 708 B2-2 709 B2-3 710 B2-4 711 B3-1 712 B3-2 713 B3-3 714 B3-4 715 C1-1 716 C1-2 717 C2-1 718 C2-2 719 C2-3 720 C2-4

Short Name

Long Name Ringwall Selfweight Structure Weight excluding Selfweight Live Load Tank Load for Erection Tank Contant Load Tand Hydrotest Load Wind Load Seismic Load Internal Pressure - Operating Internal Pressure - Test Fluid Surge Load

Self Wt Str. Wt Live Load EQ Erection EQ Operation EQ Test Wind Seismic Internal-Op Internal-Test Surge Load

Increase in Soil Bearing Capacity 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25

Factor of Safety (Overturning) 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00

Factor of Safety (Sliding) 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50

702 2 A1-2 1 1 0 1 0.000 0 -1 0 0 0 0

704 4 A2-2 1 1 0 1 0.000 0 0 -1 0 0 0

Factored Load Item 101 A1-1 Erection + Wind 102 A1-2 103 A2-1 Erection + Earthquake 104 A2-2 105 B1-1 Operating w/o Wind 106 B1-2 107 B2-1 Operating + Wind 108 B2-2 109 B2-3 110 B2-4 111 B3-1 Operating + Earthquake 112 B3-2 113 B3-3 114 B3-4 115 C1-1 Test w/o Wind 116 C1-2 117 C2-1 Test + Wind 118 C2-2 119 C2-3 120 C2-4

Erection + Wind Erection + Earthquake Operating w/o Wind Operating + Wind

Operating + Earthquake

Test w/o Wind Test + Wind

Combination Load for Unfactored Load

1 2 3 4 5 6 7 8 9 10 11

DSW DSA LL EQE EQO EQT W EQ IPO IPT FSL

Self Wt Str. Wt Live Load EQ Erection EQ Operation EQ Test Wind Seismic Internal-Op Internal-Test Surge Load

701 1 A1-1 1 1 0 1 0.000 0 1 0 0 0 0

703 3 A2-1 1 1 0 1 0.000 0 0 1 0 0 0

705 5 B1-1 1 1 1 1 1.000 0 0 0 1 0 0

706 6 B1-2 1 1 1 1 1.000 0 0 0 0 1 0

707 7 B2-1 1 1 1 1 1.000 0 1 0 1 0 1

708 8 B2-2 1 1 1 1 1.000 0 -1 0 1 0 1

709 9 B2-3 1 1 1 1 1.000 0 1 0 0 1 1

710 10 B2-4 1 1 1 1 1.000 0 -1 0 0 1 1

711 11 B3-1 1 1 1 1 1.000 0 0 1 1 0 0

712 12 B3-2 1 1 1 1 1.000 0 0 -1 1 0 0

713 13 B3-3 1 1 1 1 1.000 0 0 1 0 1 0

714 14 B3-4 1 1 1 1 1.000 0 0 -1 0 1 0

715 15 C1-1 1 1 1 1 0.000 1 0 0 1 0 0

716 16 C1-2 1 1 1 1 0.000 1 0 0 0 1 0

717 17 C2-1 1 1 1 1 0.000 1 1 0 1 0 0

718 18 C2-2 1 1 1 1 0.000 1 1 0 1 0 0

719 19 C2-3 1 1 1 1 0.000 1 1 0 0 1 0

720 20 C2-4 1 1 1 1 0.000 1 1 0 0 1 0

Combination Load for Factored Load

a a b a c d f g n n o

1 2 3 4 5 6 7 8 9 10 11

DSW DSA LL EQE EQO EQT W EQ IPO IPT FSL

Self Wt Str. Wt Live Load EQ Erection EQ Operation EQ Test Wind Seismic Internal-Op Internal-Test Surge Load

101 1 A1-1 1.5 1.5 0 1.5 0 0 1.5 0 0 0 0

102 2 A1-2 1.5 1.5 0 1.5 0 0 -1.5 0 0 0 0

103 3 A2-1 1.5 1.5 0 1.5 0 0 0 1.5 0 0 0

104 4 A2-2 1.5 1.5 0 1.5 0 0 0 -1.5 0 0 0

105 5 B1-1 1.5 1.5 1.5 1.5 1.5 0 0 0 1.5 0 0

106 6 B1-2 1.5 1.5 1.5 1.5 1.5 0 0 0 0 1.5 0

107 7 B2-1 1.2 1.2 1.2 1.2 1.2 0 1.2 0 1.2 0 0

108 8 B2-2 1.2 1.2 1.2 1.2 1.2 0 -1.2 0 1.2 0 0

109 9 B2-3 1.2 1.2 1.2 1.2 1.2 0 1.2 0 0 1 0

110 10 B2-4 1.2 1.2 1.2 1.2 1.2 0 -1.2 0 0 1 0

111 11 B3-1 1.2 1.2 1.2 1.2 1.2 0 0 1.2 1.2 0 0

112 12 B3-2 1.2 1.2 1.2 1.2 1.2 0 0 -1.2 1.2 0 0

113 13 B3-3 1.2 1.2 1.2 1.2 1.2 0 0 1.2 0 1.2 0

114 14 B3-4 1.2 1.2 1.2 1.2 1.2 0 0 -1.2 0 1.2 0

115 15 C1-1 1.2 1.2 1.2 1.2 0 1.2 0 0 1.2 0 0

116 16 C1-2 1.2 1.2 1.2 1.2 0 1.2 0 0 0 1.2 0

117 17 C2-1 1.2 1.2 1.2 1.2 0 1.2 1.2 0 1.2 0 0

118 18 C2-2 1.2 1.2 1.2 1.2 0 1.2 -1.2 0 1.2 0 0

119 19 C2-3 1.2 1.2 1.2 1.2 0 1.2 1.2 0 0 1.2 0

120 20 C2-4 1.2 1.2 1.2 1.2 0 1 -1.2 0 0 1.2 0

CALCULATION

4.1-

LOADING DATA

-

●

FOUNDATION LOADING

●

WEIGHT SUMMARY

Dead Load, Shell, Roof, & Ext.Structure Loads Live Load Uniform Load, Operating Condition Uniform Load, Hydrotest Load Base Shear due to Wind Reaction due to Wind Moment Due to Wind Base Shear due to Seismic Load Reaction due to Seismic Load Moment Due to Seismic Load

: DL : LL : WO : Wh : FW : RW : MW : FS : RS : MS

14.37 2.89 112.89 123.93 80.71 2.09 533.15 807.26 17.16 4492.39

Page 3

kN/m kN/m kN/m2 kN/m2 kN kN/m kN-m kN kN/m kN-m

DESIGN OF RING WALL ANNULAR RAFT Materials Grade of Concrete Grade of Steel

25 N/sq.mm 415 N/sq.mm

Size of Ring Wall Width of Ring Wall 0.65 m Central Diameter of Ring Wall, C 3.12 m Depth of Ring Wall above FGL 0.60 m Depth of Foundation above raft 2.00 m Depth of Raft 0.40 m Safe bearing capacity 100 kN/sq.m Unitweight of Soil 18 kN Empty Weight of Tank 39 kN Operating Weight 234 kN Wind moment 12.5 kNm Seismic Moment 55 kNm Shear at Base Due to Wind 8 kN Shear at Base Due to Seismic 32 kN Area of Ring Wall 6.38 Weight of Ring Wall above Raft 398.11 kN Wieght of soil above Raft 264.60 kN Total Vertical Load on Raft 896.71 kN Total Moment due to wind at Raft 30.1 kNm Total Moment due to earthquake at Raft 125.4 kNm Width of Raft 1.4 m External Diameter of Raft, D1 4.522 m Internal Dia meter of Raft, D2 1.72 m Weight of Ring Wall Check for Bearing Pressure Area of Raft 13.73 sq.m Section Modulus of Raft 8.89 cu.m Max Bearing Pressure under the Raft P/A+M/S 82.8 kN/sq.m Increaseing SBC @ 25% 125 kN/sq.m Pact<1.25SBC,Hence Safe Design Moments Modified uniform pressure p = p1+0.5p2 74.06 kN/sq.m Outer Radius of Raft, a 2.26 m Inner Radius of Raft, b 0.86 m Central Radius of Raft, c 1.56 m As per clause no. 5.1.2 of IS :11089-1984 At radius, r = ### pa^2/16 23.66 kN b2/a2

0.15

b2/r2

1.000

r2/a2

0.145

c /a Mt Mr At radius, r = pa^2/16 2

0.477 ### kNm 59.26 kNm

2

###

b /a 2

2

c /r c/r Mt Mr Maximum Moments for Design Mt Mr Check for Effective Depth Required effective depth, dr 2

2

Provided effective depth, dp Reinforcement Calculation Circumferential Reinforcement Mu/bd2 Area of steel Required Provided diameter of Steel Min Area of Steel Spacing of Reinforcement Required Radial Reinforcement Mu/bd2 Area of steel Required

23.66 0.15 0.145 0.690 ### kNm 92.57 kNm 82.72 kNm 92.57 kNm 141.02 mm 350 mm

0.48 N/mm2 654.77 mm2 12 mm

Check Min Steel

420 mm2/ m width 170 mm 0.76 N/mm2 743.16 mm2

Check Min Steel

Min Area of Steel 420 mm2/ m width Provided diameter of Steel 12 mm Spacing of Reinforcement Required 150 mm Provide 12mm diameter bars @170mm C/C circumferentially Provide 12mm diameter bars @150mm C/C radially