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Charactestic strength of concrete fck 20.

00kN/sqmm
Charactestic strength of steel fy 415.00kN/sqmm
Clear span L 5000mm
Live load LL 15.00kN/m
Bearing b' 380.00mm
Effective span le 5380mm
Size of beam:
d 448.33mm provide D 500mm
d 465mm
b 250mm
Calucations:
Self weight w 5.81kN/m
Live load LL 15.00kN/m
Design load Wu 31.22kN/m
Factored Moment Mu 112.95kNm
Check for effective depth(d) dreq 202.30mm <d
Xumax 223.20mm
Factored Shear Vu 83.98kN
Mulim 596.78kNm
Check URS,singly reinforced beam
Area of tension reinforcement Ast 782.37sqmm
Astlim 139.50mm <Ast
Check for Ast use Ast calculated
No. of bars of 20mm dia 2.490031 3 nos.
Design of shear reinforcement
Ꞇv 0.72kN/sqmm
Asc 942.60mm
Pt 0.81083871
Ꞇc 0.57kN/sqmm
Vu>Vc, shear reinforcements are to be designed
Using 2 legged 8mm dia bars as stirrups
Asv 100.54sqmm Vus 17204.44sqmm
Sv 981.15mm
But maximum spacing permitted is
0.75*d 311.25mm
300mm
Hence,provide 2L 8mm stirrups at 300mm c/c

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