1.5" dia M.S. pipe for propping: |
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| 2 x 7'-0"= | 14 rft | @ | Tk. 115.00 | per rft | = | Tk. | 1,610.00 |
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| Considering 50 times use |
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| = | Tk. | 32.20 | |
Labour for fitting fixing steel shutter and props in position and removing after concreting etc. |
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| 2 x 10'-0" x 10"= | 16.67 sft |
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| 25% x 10'-0" x 10"= | 2.083 sft |
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| 18.75 sft | @ | Tk. 15.00 | per sft | = | Tk. | 281.25 |
Hessian for water-tight for | 18.75 sft | @ | Tk. 1.25 | per sft | = | Tk. | 23.44 | |
Curing for 28 days for surface area | 27.57 sft | @ | Tk. 2.67 | per sft | = | Tk. | 73.61 | |
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| Grand total |
| = | Tk. | 603.25 |
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| Cost per sft | = | Tk. | 32.17 |
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| Cost per sqm | = | Tk. | 346.28 |
C-15 | T-BEAM, EL-BEAM, RECTANGULAR BEAM using STEEL shutter |
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| Assuming 20'-0" x 1'-6" x 1'-0" beams |
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| Shuttering Area: 80 sft |
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(i) | 1.5" x 1.5" x 3/16" M.S. angle for frame |
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| 2 x 3 x 20'-0" = | 120 rft |
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| 2 x 3 x 2 x 1'-6"= | 18 rft |
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| 1 x 3 x 2 x 1'-4"= | 7.98 rft |
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| 145.98 rft |
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| Add 5% wastage= | 7.30 rft |
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| = | 153.28 rft |
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| @ 1.79Ibs per rft= | 274.37 Ibs | @ | Tk. 24.94 | per Ib | = | Tk. | 6,842.79 |
(ii) | 1.5" x 3/16" F.I. bar for stiffner and tie: |
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| 1 x 2 x 20'-0"= | 40.00 rft |
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| 2 x 3 x 4 x 1'-6"= | 36.00 rft |
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| 1 x 3 x 6 x 1'-4"= | 23.94 rft |
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| 6 x 1'-4"= | 7.98 rft |
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| 107.92 rft |
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| Add 5% wastage= | 5.40 rft |
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| = | 113.32 rft |
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| @ 0.96Ibs per rft= | 108.79 Ibs | @ | Tk. 24.94 | per Ib | = | Tk. | 2,713.22 |
(iii) | 16 BWG steel sheet for covering frame |
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| 2 x 20'-0" x 1'-6"= | 60.00 sft |
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| 1 x 20'-0" x 1'-4"= | 26.60 sft |
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| 86.60 sft |
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| Add 5% wastage= | 4.33 sft |
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| 90.93 sft |
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| @ 2.44 Ibs per sft | 221.87 Ibs | @ | Tk. 27.44 | per Ib | = | Tk. | 6,088.11 |
(iv) | Fabrication for steel shutter: | 86.60 sft | @ | Tk. 75.00 | per sft | = | Tk. | 6,495.00 |
(v) | Nuts, bolts, J-hooks etc. | 4 kg | @ | Tk. 160.00 | per kg | = | Tk. | 640.00 |
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| Total | = | Tk. | 22,779.12 |
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| Considering 30 times use |
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| = | Tk. | 759.30 | |
(vi) | Props: (10 nos) |
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| 2" dia M.S. pipe: 1 x 7'-0"= | 7.00 rft |
| Tk. 140.00 | per rft | = | Tk. | 980.00 |
| 1.5" dia M.S. pipe: 1 x 7'-0"= | 7.00 rft | @ | Tk. 115.00 | per rft | = | Tk. | 805.00 |
| Adjustable mechanism in/c |
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| top and bottom plates: | 1.00 no | @ | Tk. 600.00 | each | = | Tk. | 600.00 |
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| Total | = | Tk. | 2,385.00 |
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| Cost for 10 nos prop |
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| = | Tk. | 23,850.00 | |
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| Sub-total |
| = | Tk. | 26,235.00 |
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| Considering 50 times use |
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| = | Tk. | 524.70 | |
(vii) | Labour cost for fitting fixing steel shutter and props in position and removing after concreting etc.: |
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| 2 x 20'-0" x 1'-6"= | 60.00 sft |
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| 1 x 20'-0" x 1'-0"= | 20.00 sft |
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| = | 80.00 sft | @ | Tk. 15.00 | per sft | = | Tk. | 1,200.00 |
(viii) | Hessian for water-tight for | 80.00 sft | @ | Tk. 1.25 | per sft | = | Tk. | 100.00 |
(ix) | Curing for 28 days for surface area | 80.00 sft | @ | Tk. 2.67 | per sft | = | Tk. | 213.60 |
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| Grand total |
| = | Tk. | 2,797.60 |