This paper describes about the design and fabrication of automatic drain cleaner. There are a large number of machines used for removing out the wastes from drains. Nowadays, automation plays a vital role in all industrial applications. The automatic
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RCCDesign Numenricals
Design of combined footing for two columns
Visit www.abqconsultants.com This program Designs and Optimises RCC Corbels Written and programmed by A B Quadri www.abqconsultants.com [email protected][email protected] 99590102…Full description
Visit www.abqconsultants.com This program Designs and Optimises RCC Dome. Written and programmed by A B Quadri www.abqconsultants.com [email protected][email protected] 9959010210 99590...Full description
DESIGN OF R.C.C. DRAIN: W 1500 x D 1500
1500
150 150
150 1650
1.5 t/m2 (earth)
1500 Surcharge =
1 T/m2
Unit wt. of water =
1 T/m3
Unit wt. of soil =
4 1.8 T/m
25 N/mm2
Grade of concrete
M25
Grade of steel
Fe500
500 N/mm2
3 1 t/m
Submerged unit wt. of soil gd Coefficient of Earth Pressure =
0.5
Depth
150 mm
Effective cover
40 mm
Effective depth
105 mm
Width
1000 mm
DESIGN OF SIDE WALL: 1650
1.65 t/sq.m
UPKIFT
Moment at bottom of wall = 2
Mu/bd = pt =
1.398 t m/m 1.902 N/mm2 0.484
0.750 0.50 t/m2 2 t/m (Surcharge) (water)
Ast (Required) =
PROVIDED
10
5.1 cm2
DIA. @
150
mm C/C
2 5.23 cm ( pt = 0.498 ) AT BOTTOM.
Check for shear : Shear at the face of support = Nominal shear stress.tv =
2.438 T 2 0.35 N/mm
tc = 0.85*(0.8fck((1+5b)-1)/6b = where,
b = 0.8 fck/ 6.89pt =
2 0.482 N/mm
5.997
Total pt =
0.484
Shear Capacity=
7.24 T
where,
>
2.44 T OK
DESIGN OF BASE OF TRENCH
Self weight of trench =
1.69 t/m
Live load over trench =
1 t/m
Total
2.69 t/m
Upward pressure =
1.65 t/m2
Net pressure =
1.04 t/m2
Free B.M at span = Mu/bd2 = pt = Ast (Required) =
PROVIDED
8
0.353 t m/m 0.480 N/mm2 0.120 1.3 cm2
DIA. @
250
mm C/C
2 2.01 cm ( pt = 0.191 ) AT BOTTOM.
Distribution Steel:
Distribution reinforcement=
0.060 % of gross cross sectional area on each face