70874932-cantilever-beam.xls
TRANSCRIPT
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8/11/2019 70874932-Cantilever-Beam.xls
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DESIGN OF CANTILEVER BEAM
Assume Breath of Beam = mm
Assume Depth of Beam = mm
Effective Span of Slab = mt
Grade of Steel Fe = N/mm KN/m
Grade of Concrete M = N/mm
Clear Cover = mm
Loads: mm
Dead load = KN/m
Live load = KN/m
Floor finishes = KN/m
KN/m
Load/mt rum = x
= KN/m
Maximum B.M. = x x
= KN.mt
Effective depth required = x6
x x
= mm
Dia of Reinforcement = 16 mm
Effective depth d = - - 8
= mm Safe in B.M
Mu = x6
bd x
=
1.5
66.51
16.8
6.3
230
323.68
10
417230
1.66
230
20
2.30
2
417
450
6.3
66.51 10
0.138 20
66.51
25
PROJECT:
2.30
450
2.30
2.588
25
415
2300
16.8
3.00
0.75
16.8
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PROJECT:
Pt from table 2 of SP:16 = %
Ast Required = mm
0.516
494.707
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PROJECT:
Provide 2 - Tor St & 2 - Tor Ext
Ast Provided = mm
Pt = 0.65 %
Shear Check
Shear force = 1.5 x
57.83 KN
V = 57.83 x3
bd 230 x
= 0.603 N/mm
Angle = 3.547
tcfor % Ast = 0.53 N/mm
tcbd = 0.532 x x
= KN
Vus = 57.83 -
d
= 0.164 KN/cm
Dia of Bar = 8 mm #
No. of Legs = 2 No.#
Spacing of Stirrups Required @ = 2215
2 - Legged 8 Tor @ mm C/C
Check for Deflection
Support Condition = 7
Pt of Tension renforcement @ mid span = 0.65 %
0.58*Fy*Ast Required/Ast Provided = 189.6 N/mm
Modification Factor = 1.321
Effective Depth Required = 248.7 mm Safe in Deflection
0.65
230
628
51.00
51.00
16
41.7
200
2.3
417
12
16.76
10
417
x