Structural engineering and irrigation drawing.pptx

irrigation engineering

1. Structural engineering and irrigation drawing

2. Singly reinforced beam A singly reinforced beam has the following particulars. Clear span of beam—5 m. Wall thickness.300mm Cross section of beam --250 x450 mm. Clear cover to Stirrups—25mm. Beam --tension reinforcement: 3 Nos of 16 mm Φ with one of them bend up at 0.15 leff . Stirrups -6mm Φ @ 100mm C/C up to 1m from centre of support and remaining @ 125mm C /C. Draw (1) Cross section of the beam at centre and support. (10) (2) Longitudinal section (15)

3. Clear span of beam—5 m. Wall thickness.300mm 300 mm 300 mm 5000 mm Cross section of beam --250 x450 mm. Longitudinal section Cross section at the support. Cross section at centre Clear cover to Stirrups—25mm. Beam --tension reinforcement: 3 Nos of 16 mm Φ with one of them bend up at 0.15 leff . Stirrups -6mm Φ @ 100mm C/C up to 1m from centre of support and remaining @ 125mm C /C. Stirrups 6mm Φ @ 100mm C/C Stirrups 6mm dia @ 125mm C/C Tension reinforcement: 3 Nos of 16 mm Tension reinforcement: one bend up bar 250 mm 450 mm 450 mm 250 mm 450 mm 450 mm Scale 1:20 Scale 1:10 Scale 1:10 0.15 leff = 0.15 x 5.3

4. Doubly reinforced beam A doubly reinforced beam has the following particulars. Clear span of beam—5 m. Wall thickness.300mm Cross section of beam --300 x500 mm. Beam --tension reinforcement: 4 Nos of 16 mm Φ compression reinforcement: 3 Nos of 16 mm Φ Stirrups -10mm Φ @ 200mm C/C Draw (1) Cross section of the beam at centre and support. (10) (2) Longitudinal section (15)

5. Clear span of beam—5 m. Wall thickness.300mm 300 mm 300 mm 5000 mm Cross section of beam --300 x500 mm. Longitudinal section Cross section at the support. Cross section at centre Clear cover to Stirrups—25mm. Beam --tension reinforcement: 4 Nos of 16 mm Φ compression reinforcement: 3 Nos of 16 mm Φ Stirrups -10mm Φ @ 200mm C /C. Stirrups 10mm Φ @ 200mm C/C Stirrups 6mm dia @ 125mm C/C Tension reinforcement: 4 Nos of 16 mm Compression reinforcement 3 nos. 16 mm Φ 300 mm 500 mm 500 mm 300 mm 450 mm 500 mm Scale 1:20 Scale 1:10 Scale 1:10 0.15 leff = 0.15 x 5.3 Tension reinforcement: 3 Nos of 16 mm

6. Length of the beam 2.5m

7. Cantilever beam A cantilever beam has the following particulars. Span of beam—2.5 m. Column size 300 x 450 mm of rein. 6 – 16 mm Φ Cross section of beam --300 x600 mm. (fixed end) 300 x 300 mm (free end) Bearing in column 450 mm Beam --tension reinforcement: 4 Nos of 16 mm Φ compression reinforcement: 2 Nos of 12 mm Φ Stirrups -8mm Φ @ 200mm C/C Draw (1) Cross section of the beam at fixed and free end. (10) (2) Longitudinal section (15)

8. 450 mm 2500 mm Longitudinal section Cross section at the fixed end. Cross section at the free end Stirrups 8mm Φ @ 200mm C/C Stirrups 6mm dia @ 125mm C/C Tension reinforcement: 4 Nos of 16 mm Compression reinforcement 2 nos. 12 mm Φ 300 mm 300 mm 600 mm 300 mm 450 mm 300 mm Scale 1:20 Scale 1:10 Scale 1:10 Tension reinforcement: 4 Nos of 16 mm 300 mm 2500 mm 450 mm 300 mm Plan showing main reinforcement section Span of beam—2.5 m. Column size 300 x 450 mm Cross section of beam --300 x600 mm (fixed end) & 300 x 300 mm (free end) Clear cover to Stirrups—25mm. Beam --tension reinforcement: 4 Nos of 16 mm Φ compression reinforcement: 2 Nos of 12 mm Φ Stirrups -8mm Φ @ 200mm C /C.

9. 200 mm 500 mm Cross section of lintel with sunshade Stirrups 6mm Φ @ 200mm C/C Main reinforcement: 8 mm Φ 200 mm c/c Stirrup holder 2 nos. 6 mm Φ 450 mm 50 mm Scale 1:20 Scale 1:10 Distribution bars: : 6 mm Φ 250 mm c/c 300 mm 1500 mm 450 mm 200 mm Longitudinal section of the lintel Sunshade projection—50 cm. Depth lintel 200 mm Wall thik :-200, opening width 1500 mm Av. Thik of sundshade 75 mm Lintel - tension reinforcement: 4 Nos of 8 mm Φ Stirrups -2 legged 6mm Φ @ 200mm C /C, Stirrups holder – 2-6mm Φ Main reinforcement in sunshade 8 mm Φ @ 200 mm c/c & 6 mm dist. @ 25 mm clc . 200 mm 100 mm Main reinforcement 4 nos. 8 mm Φ

10. One way simply supported slab Clear cover to Stirrups—25mm. Size of room 1.5 m x 3.5 m. Wall thickness.220mm, Slab thickness-100 mm. Main Bars 8 mm Φ mild steel @ 180mm C /C, alternate bars bent up. distribution bars 6 mm Φ mild steel @ 200mm C /C Draw a) plan B) section along shorter span

11. 1.5 m 220 mm 220 mm Main bar 8 mm Φ @ 180 mm c/c Alternate bar 8 mm Φ bent up @ 360 mm c/c 100 mm Distribution bar 6 mm Φ @ 200 mm c/c SECTION ALONG SHORTER SPAN PLAN SHOWING THE REINFORCEMENT DETAILS 1.5 m 220 mm 220 mm 220 mm 220 mm 3.5 m Main bar 8 mm Φ @ 180 mm c/c Alternate bar 8 mm Φ bent up @ 360 mm c/c Distribution bar 6 mm Φ @ 200 mm c/c

12. Two way simply supported slab Clear cover to Stirrups—25mm. Size of room 1.5 m x 3.5 m. Wall thickness.220mm, Slab thickness-100 mm. Main Bars 8 mm Φ mild steel @ 180mm C /C, alternate bars bent up. distribution bars 6 mm Φ mild steel @ 200mm C /C Draw a) plan B) section along shorter span

13. 1:9 1:6

14. BED ROCK 95.0 m G L 100.0 m FTL 111.5 m DTL 114.5 m 105.0 m 1 1 1 1.4 1 9 1 6 102.0 m

15. Tank sluice with tower head

16. Foundation level 33.4 m (assume) Tail channel level 34.0 m Depth of Barrel 1.0 m Still basin top 35.5 m Wearing coat 33.9 Slab thickness 150 mm Bund top level 40.0 m 1 2 2.5 m Branch bund level 35.0 m Depth of Barrel 1000 mm Revetment level 38.5 m FTL 37.0 m MWL 38.0 m 450mm

17. Bund top level 105.0 m MWL 99.0 m FTL 98.0 m TOP APRON LEVEL97.0 m 1 2 1 2 Grouted apron 600 mm thick Solid apron 600 mm thick 3 m Size of cut off wall 600 mm x 900 mm 1000 m 1500 m 900 mm 750 mm 2000 m 24.6 m 15 m PLAN (HALF PLAN AT BOTTOM & TOP SECTION ACROSS BODY WALL

18. Bund top level 1005.0 m MWL 99.0 m FTL 98.0 m TOP APRON LEVEL97.0 m 1 2 1 2 Grouted apron 600 mm thick Solid apron 600 mm thick 3 m Size of cut off wall 600 mm x 900 mm 1000 m 1500 m 900 mm 750 mm 2000 m 24.6 m 15 m PLAN (HALF PLAN AT BOTTOM & TOP SECTION ACROSS BODY WALL Bund top level 105.0 m FTL 98.0 m MWL 99.0 m TOP APRON LEVEL97.0 m TOP APRON LEVEL97.0 m 500 mm 750 mm 750 mm 500 mm 24.6 m 25.2 m 10 m SECTIONAL ELEVATION

19. BED LEVEL 12.0 m BTL 15.00 m FSL 13.50 m DROP WALL TOP LEVEL 12.00 m DROP WALL BOTTOM LEVEL 8.60 m BED LEVEL of D/S 9.0 m TOP of D/S BANK LEVEL 12.5.0 m LENGTH OF SOLID APRON 6.0 m LENGTH OF SLOPING GROUTED APRON 5.0 m 0.3 m 1.20 m 0.85 m 3.0 m 0.6 m 1.0 m 0.6 m Water cussion Notch pier Sill stone Bed pitching 60 cm thick Bed pitching 60 cm thick

20. 1.2m 0.05 m 3.6 m 0.20 m 0.10 m 1.0 m Inlet chamber Outlet chamber Baffle wall SEPTIC TANK PLAN SOAK PIT PLAN 1.2 m 1.2 m SECTIONAL ELEVATION

21. Top level 14.5 m GROUND LEVEL 10.0 m Top level of base slab 9.5 m Thickness of base slab 0.6 m Top width 250 mm Bottom width 600 mm Toe projection1000 mm Heel projection1800 mm Stem main steel 16 mm dia @ 100 mm C/C Alternate bars curtailed at 1/3 height from top H/3 Distribution steel 12 mm dia @ 150 mm C/C Temperature steel 10 mm dia @ 150 mm C/C both direction Toe and heel steel 16 mm dia @ 100 mm C/C