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Cost Advantage

Savings In steel consumption

Based on proof or yield strength of steel
1 mt of torkari replaces 1.33 mt of tor-40 ( fe-415)
1 mt of torkari replaces 2.42 mt of ms ( fe-250)

Quantity Savings Chart

QUANTITY SAVINGS CHART

SLABS TORKARI TORSTEEL MS
BASED ON PROOF OR YIELD STRENGTH
1 MT 1 MT 1.325 MT 2.42 MT
Slab Thickness Based on Min. Area of Steel, Min. dia available and Max. spacing permitted
100 mm 1 MT 1.57 MT 1.67 MT
120 mm 1 MT 1.47 MT 1.67 MT
Substitution Chart

SUBSTITUTION CHART BASED ON STRENGTH CONSIDERATIONS

Tor - 40 or Fe- 415 TORKARI
8mm @ spacing S mm 7mm @ spacing S mm
10mm @ spacing S mm 9mm @ spacing 1.075mm or 8.5mm @ spacing S mm
12mm @ spacing S mm 9mm @ 0.75 S mm
16mm @ spacing S mm 9mm @ 0.42 S mm
Substitution Chart

SUBSTITUTION CHART FOR DISTRIBUTION STEEL IN SLABS

From Original Design with Convert to
8mm Tor-40 (Fe-415) 7mm TORKARI with no change in spacing
6mm MS 5mm TORKARI with no change in spacing

CONVERSION TO TORKARI STIRRUPS

CONVERT FROM CONVERT TO TORKARI
Grade of Steel N/sq.mm Dia & spacing of stirrups Based on restricted Characteristic strength of 415N/sq.mm Based on Actual proof strength of 550
Fe-415 (Tor-40) 8mm @ S mm c/c 7mm @ 0.775 S mm c/c 7mm @ S mm c/c
Fe-415 Tor-40 10mm @ S mm c/c 9mm @ 0.8 S mm c/c 9mm @ 1.07 S mm c/c
Fe-415 Tor-40 12mm @ S mm c/c 9mm @ 0.56 S mm c/c 9mm @ 0.74 S mm c/c
MS Fe-250 5, 6, 6.5 or 7mm @ S c/c 5mm @ S mm c/c 5mm @ S mm c/c
Substitution Chart

CONVERSION TO COLUMN TIES

From Original Design with Convert to Remarks
8mm Tor-40 / Fe-415 7mm Torkari with no change in spacing This conversion ensures atleast same strength as with original design
7, 6.5, 6 mm MS Fe-250 5mm Torkari with no change in spacing
COST SAVINGS AS PER DESIGN

COST SAVINGS AS PER DESIGN

TORKARI TORSTEEL MS
BASED ON PROOF OR YIELD STRENGTH
1 MT 1.325 MT NA
BASIC RATE / TON 37960/- 32400/- NA
COST 37960/- 42930/- NA
Cost Savings Table

COST SAVINGS - Price Comparison Torkari Vs TMT

Sl No Grade Dia in mm Noml. Wt/m tr Length Mtr/ton Eqlnt. Qty Tons. Landed cost per ton Net Cost/MT Your Net Savings per ton (Rs) % of Cost Savings *
1 TMT 10 0.617 1621 1.272 41000 52159 4159 8.0
TORKARI 9 0.485 2062 1.000 48000 48000
2 TMT 8 0.395 2532 1.308 42000 54934 6934 12.6
TORKARI 7 0.302 3311 1.000 48000 48000
3 M S 6 0.222 4505 1.442 48000 57662 9662 16.8
TORKARI 5 0.154 6494 1.000 48000 48000
Cost Savings for Typical Slab

COST SAVINGS FOR TYPICAL SLAB

SLAB PANEL = 4m × 4m (2 way slab)

1. SAVINGS DUE TO MATERIAL.
"Spacing as per design" No of rods for 4 mt span per mt length "Weight in kgs" Landed cost in Rs. per ton Total Cost in Rs.
CONVENTIONAL DESIGN USING 8mm TMT
8mm TMT @250 mm c/c 136 53.72 48380 2598.57
TORKARI DESIGN USING 7mm Torkari (Fe-550) grade steel
7mm Torkari @200mm c/c 136 41.072 55460 2277.85
SAVINGS 321.12
PERCENTAGE SAVINGS 12.36%
SAVINGS PER TON IN RS. 5,977.67
2. SAVINGS DUE TO LABOUR
Steel Used "Labour cost per ton" "Weight in kgs as per above" "Labour cost for above quantities"
8mm Tor-40 5000 53.72 268.60
7mm TORKARI 5000 41.072 205.36
SAVINGS in Rs. 63.24
PERCENTAGE SAVINGS 23.54%
SAVINGS PER TON IN RS. 1,177.22
TOTAL SAVING PER TON 7,154.89
Project Case Study - Green Acres

PROJECT CASE STUDY – GREEN ACRES

S.No Tor-40 Wt/Mtr (kg) Qty (mt) Rate/mt (₹) Amount (₹)
1 6mm MS 0.250 8.25 25,480 2,04,600
2 8mm 0.395 33.50 26,000 8,71,000
3 10mm 0.617 2.5 25,600 64,000
TOTAL 44.250 11,39,600
4 5mm Tk 0.154 5.082 30,100 1,52,968
5 7mm Tk 0.302 25.613 29,400 7,53,012
6 8mm Tk 0.500 2.026 29,400 59,562
TOTAL 32.721 9,65,542
TOTAL SAVINGS PER LOCK 1,74,057
% AGE OF SAVINGS 15%
SAVINGS FOR 21 BLOCKS 36.50 Lakhs
Steel Quantities Estimation

L&T – SERENE COUNTY, HYDERABAD

Estimation of Steel Quantities

“Area per slab ( sq.mtr)” “Total Area G+ 14 X 10 towers” Co-efficient for 8mm Tor-40 (kg/m3) “Total quantity of 8mm tor-40 (slab thickness = 115mm)”
2143 321450 65 2402.84

1. SAVINGS DUE TO MATERIAL

“Spacing as per design” Total length in mts Total Quantity in tons Landed cost per ton in Hyderabad in Rs. (March 2008) TOTAL COST
“8y (Fe-415) @ 200mm c/c” 6083136.08 2402.84 43160 103706520
“7y (TORKARI) @ 200mm c/c” 6083136.08 1837.11 50805 93334226
TOTAL SAVINGS in Rs. 10372294
PERCENTAGE SAVINGS 10%
SAVINGS PER TON IN Rs. 4317
TOTAL SAVINGS in Rs. 7930210
Project Case Study - Green Acres

PROJECT CASE STUDY – GREEN ACRES

S.No Tor-40 Wt/Mtr (kg) Qty (mt) Rate/mt (₹) Amount (₹)
1 6mm MS 0.250 8.25 25,480 2,04,600
2 8mm 0.395 33.50 26,000 8,71,000
3 10mm 0.617 2.5 25,600 64,000
TOTAL 44.250 11,39,600
4 5mm Tk 0.154 5.082 30,100 1,52,968
5 7mm Tk 0.302 25.613 29,400 7,53,012
6 8mm Tk 0.500 2.026 29,400 59,562
TOTAL 32.721 9,65,542
TOTAL SAVINGS PER LOCK 1,74,057
% AGE OF SAVINGS 15%
SAVINGS FOR 21 BLOCKS 36.50 Lakhs