Step 1:- Calc $C_L$ & no. T junction Draw centre line diagram & analyse further.
T =2 x 4.8 + 1 + 2 x 5.3 + 2 x 5.8 + 3.8 + 0.4 +2 x 3.8 + 2 x 4.1 + 2 x 1.9 + 2 x 3.1 + 3.2 + 2.3 + 3.5 + 2.8 = 75.6 m.
Note: Cross the no. with the diagram and complete all the sides.
$\Box$ = No. of T junctions = 12
Step 2:- calc what is the question given in the paper.
| Sr No. |
Description of work |
Nos |
L |
B |
H |
Quantity |
Unit |
| a) |
UCRmasonry in sub str = plinth + 3rd footing,+ 2nd footing + 1stfooting [No. P.C. C] |
- |
- |
- |
- |
- |
- |
| - |
$Plinth :-T_{C_1}-N_T{\times}\frac{B}{2} \\Total \ length-75.6-12{\times}{0.3}{2} \\ =53.8$ |
1 |
73.8 |
0.3 |
0.7 |
$L{\times} B {\times} H,\\ 15.49$ |
$m^3$ |
| - |
$3_{rd}$ footing (below G.L),Total length =$T_{C_1}-N_T{\times}{B}{2}\\ =75.6-12{\times}\frac{0.5}{2} \\ =72.6$ |
1 |
72.6 |
0.5 |
0.3 |
$L{\times} B {\times} H,\\ 10.89$ |
$m^3$ |
| - |
$2_{nd}$ footing :-Total length =$T_{C_1}-N_T{\times}{B}{2}\\=75.6-12{\times}\frac{0.7}{2} \\ =71.4$ |
1 |
714 |
0.7 |
0.3 |
$L{\times} B {\times} H,\\ 14.99$ |
$m^3$ |
| - |
1st,footing:-$T_{C_1}-N_T{\times}{B}{2}$ Total Lenght=$75.6-12{\times}{1}{2} \\ 69.9$ |
1 |
69.6 |
1 |
0.3 |
$L{\times} B {\times} H,\\ 20.88$ |
$m^3$ |
| b) |
DPC (2.5cm thk) (At P.L) in1:2:4,Total length$=T_{C_1}-N_T{\times}{B}{2} \\ 75.6-12{\times}\frac{0.3}{2} \\=73.8$ |
1 |
73.8 |
0.3 |
- |
$L {\times} B {\times} H,\\ 22.14$ |
$m^3$ |
| c) |
$1^{st}$ class brickwork in superstructure,Net length = $T_{c1}-N_T{\times}\frac{B}{2} \\ =75.6{\times}\frac{0.3}{2} \\ =73.8$ |
1 |
73.8 |
0.3 |
3.1 |
$L{\times} B {\times}H,\\ 68.63$ |
$m^3$ |
| - |
Deduction:-,(-), |
- |
- |
- |
- |
- |
- |
| - |
1) Door (Analysis fromdiagram & given data) |
- |
- |
- |
- |
$L{\times}B{\times}H$ |
- |
| - |
D |
-1 |
1.4 |
0.3 |
2.1 |
-0.88 |
$m^3$ |
| - |
$D_1$ |
-3 |
1.2 |
0.3 |
2.1 |
-2.27 |
$m^3$ |
| - |
$D_2$ |
-2 |
1 |
0.3 |
2.1 |
-1.26 |
$m^3$ |
| - |
O |
-1 |
1.3 |
0.3 |
2.1 |
-0.82 |
$m^3$ |
| - |
2) Windows |
- |
- |
- |
- |
$L{\times}B{\times}H$ |
- |
| - |
W |
-3 |
1.2 |
0.3 |
1.5 |
-1.62 |
$m^3$ |
| - |
$W_1$ |
-4 |
1.5 |
0.3 |
1.5 |
-2.7 |
$m^3$ |
| - |
$W_2$ |
-2 |
1 |
0.3 |
0.8 |
-0.48 |
$m^3$ |
| - |
- |
- |
- |
- |
- |
58.6 |
$m^3$ |
d) Internal Plaster:
Note:-
1) No width
2)Internal dimension to be taken
3) In deductions, count both side of doors, if it is present inside the plan
4) count only internal side for windows as it is an internal plaster
Deduction:-
Opening area i.e L x B < $0.5m^2$ no deduction
.
0.5m < opening < $3m^2$ -50% deduction
No separate measurement for jamb lining.
Opening > $3m^2$ = 100% deduction
Seperate measurement for jamb lining.
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