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Made Date Sheet
A.rahman 13-07-2011 1
Check Date Rev.
ZA 13-07-2011 0
PROJECT TITLE: Minhal Crown Plaza
LOCATION: Riyadh
DESIGN OF Ramp
Geometrical Properties Material Properties
Span = le = 8.85 m 24
End cond'n:Simple(1),cont(2) 1 m 35
Long term defln coeff " k " 1 m 420Moment coeff 0.125 m Clear cover to concrete 35 mmWidth of Slab "b" 1000 mm Flexure strength reduction factor 0.9Thickness of slab "t" 350 mm Shear strength reduction factor 0.75Eff. Depth "d" 314 Modulus of Elasticity of steel "Es" 2E+05
Loading Modulus of Elasticity of concrete "Ec" 27806
Self Weight of slab 8.4 Modular Ratio "n = Es/Ec" 7.19Floor Finish 0.5 Provided Reinforcement
Wall load 0 0 Φ 20 mm8.9 Bottom layer Nos. 10 Φ 25 mm
Live load 12 020.9 4909
29.88CalculationsShear Vu = wu*le/2 = 132.22 kNm
292.53 kNm
Check for Section capacity
69.31 mm518.3938295 kNm OK > Mu 292.53 kNm
Shear requirements236.8502541 kN OK > Vu 132.22 kN
Serviceability requirements
45 mm0.028318854
08.403828073 mm
3.298E+09
Calculate Gross moment of inertia
Area of slab A = t*b 350000Depth of neutral axis "y" 175 mm
175 mm3.573E+09
3.6774.89 kNm
Weight of reinforced concrete "γrc" kN/m3
Strength of concrete "fc" N/mm2
Strength of steel "fy" N/mm2
N/mm2
N/mm2
kN/m2
kN/m2
kN/m2 Top layer Nos.Total dead Load "Udl" kN/m2
kN/m2 Area of Top steel "As_t" mm2
Total service Load "tsl" kN/m2 Area of Bottom steel "As_b" mm2
Total Ultimate Load "wu" kN/m3
Moment Mu = cx*wu*le2
Depth of comp. block "a"= As_b*fy/(0.85*f'c*b)Section capacity ΦMn = Φ*As_b*fy*(d-a/2)
Shear capacity ΦVc = Φ*0.17*√f'c*b*d
d' = c+db/2B = b/(n*As_b)
r = (n-1)*As_t/(n*As_b)kd = (√(2*d*B(1+r*d'/d)+(1+r)2)-(1+r))/BIcr = bkd3/3+n*As_b*(d-kd)2+(n-1)*As_t*(kd-d')2 mm4
mm2
Distance of top fiber from N.A "yt"Gross moment of inertia "Ig" mm4
Allowable stress fr = 0.62√f'c N/mm2
Crqacking moment Mcr = fr*Ig/yt
Made Date Sheet
A.rahman 13-07-2011 1
Check Date Rev.
ZA 13-07-2011 0
PROJECT TITLE: Minhal Crown Plaza
LOCATION: Riyadh
DESIGN OF Ramp
Service moments
87.13 kNm
Moment due to live load "Mll" 117.48 kNm
204.62 kNm
Deflection due to dead + live loads
0.3663.311E+09
18.13 mm
Deflection due to dead load
0.8593.473E+09 <= Ig
7.36 mm
Deflection due to live load
Live load deflection = dl+ll deflection - dl deflection10.77 mm
Allowable immediate deflection due to Live load =per ACI 318 Tab 9.5b 24.58 mm > 10.77 mm OK
Long term deflection
% of liveload sustained "SL" 50 %145.88 kNm
0.5133.335E+09 <=Ig
12.83 mm
Magnification factor for creep and shrinkage2.000
Where:-ξ = 2 for 5 years cl.9.5.2.5 ACI 318
0.00000
36.435 mm
36.875 mm > 36.44 mm O.K
Moment due to dead load "Mdl"
Total Moment Ms = Mdl+Mll
R(dl+ll) = Mcr/MsIe(dl+ll) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Ms*le2/(Ec*Ie)
R(dl) = Mcr/MdIe(dl) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Md*le2/(Ec*Ie)
le/360
Msus = Mdl+SL*Mll
R(sus) = Mcr/MsusIe(sus) = R3*Ig+(1-R3)*Icr
δ = K*5/48*Msus*le2/(Ec*Ie)
λΔ = ξ / (1+50*ρ')
ρ' = As_t/(b*d)
Toatl deflection = λΔ*sus deflection + ll deflection
Allowable deflection = le/240
Made Date Sheet
A.Rahman 13-07-2011 1
Check Date Rev.
ZA 13-07-2011 0
PROJECT TITLE: Minhal Crowne Plaza
LOCATION: Riyadh
DESIGN OF Ramp ( 3 )
Geometrical Properties Material Properties
Span = le = 3.25 m 24
End cond'n:Simple(1),cont(2) 1 m 35
Long term defln coeff " k " 1 m 420Moment coeff 0.125 m Clear cover to concrete 35 mmWidth of Slab "b" 1000 mm Flexure strength reduction factor 0.9Thickness of slab "t" 250 mm Shear strength reduction factor 0.75Eff. Depth "d" 214 Modulus of Elasticity of steel "Es" 2E+05
Loading Modulus of Elasticity of concrete "Ec" 27806
Self Weight of slab 6 Modular Ratio "n = Es/Ec" 7.19Floor Finish 0.5 Provided Reinforcement
Wall load 0 0 Φ 20 mm6.5 Bottom layer Nos. 6 Φ 14 mm
Live load 5 011.5 923.75
15.8CalculationsShear Vu = wu*le/2 = 25.675 kNm
20.86 kNm
Check for Section capacity
13.04 mm72.44699038 kNm OK > Mu 20.86 kNm
Shear requirements161.4202369 kN OK > Vu 25.675 kN
Serviceability requirements
45 mm0.150504115
03.645363251 mm
2.940E+08
Calculate Gross moment of inertia
Area of slab A = t*b 250000Depth of neutral axis "y" 125 mm
125 mm1.302E+09
3.6738.21 kNm
Weight of reinforced concrete "γrc" kN/m3
Strength of concrete "fc" N/mm2
Strength of steel "fy" N/mm2
N/mm2
N/mm2
kN/m2
kN/m2
kN/m2 Top layer Nos.Total dead Load "Udl" kN/m2
kN/m2 Area of Top steel "As_t" mm2
Total service Load "tsl" kN/m2 Area of Bottom steel "As_b" mm2
Total Ultimate Load "wu" kN/m3
Moment Mu = cx*wu*le2
Depth of comp. block "a"= As_b*fy/(0.85*f'c*b)Section capacity ΦMn = Φ*As_b*fy*(d-a/2)
Shear capacity ΦVc = Φ*0.17*√f'c*b*d
d' = c+db/2B = b/(n*As_b)
r = (n-1)*As_t/(n*As_b)kd = (√(2*d*B(1+r*d'/d)+(1+r)2)-(1+r))/BIcr = bkd3/3+n*As_b*(d-kd)2+(n-1)*As_t*(kd-d')2 mm4
mm2
Distance of top fiber from N.A "yt"Gross moment of inertia "Ig" mm4
Allowable stress fr = 0.62√f'c N/mm2
Crqacking moment Mcr = fr*Ig/yt
Made Date Sheet
A.Rahman 13-07-2011 1
Check Date Rev.
ZA 13-07-2011 0
PROJECT TITLE: Minhal Crowne Plaza
LOCATION: Riyadh
DESIGN OF Ramp ( 3 )
Made Date Sheet
A.Rahman 13-07-2011 1
Check Date Rev.
ZA 13-07-2011 0
PROJECT TITLE: Minhal Crowne Plaza
LOCATION: Riyadh
DESIGN OF Ramp ( 3 )
Service moments
8.58 kNm
Moment due to live load "Mll" 6.60 kNm
15.18 kNm
Deflection due to dead + live loads
2.5161.302E+09
0.46 mm
Deflection due to dead load
4.4521.302E+09 <= Ig
0.26 mm
Deflection due to live load
Live load deflection = dl+ll deflection - dl deflection0.20 mm
Allowable immediate deflection due to Live load =per ACI 318 Tab 9.5b 9.03 mm > 0.20 mm OK
Long term deflection
% of liveload sustained "SL" 50 %11.88 kNm
3.2151.302E+09 <=Ig
0.36 mm
Magnification factor for creep and shrinkage2.000
Where:-ξ = 2 for 5 years cl.9.5.2.5 ACI 318
0.00000
0.923 mm
13.541667 mm > 0.92 mm O.K
Moment due to dead load "Mdl"
Total Moment Ms = Mdl+Mll
R(dl+ll) = Mcr/MsIe(dl+ll) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Ms*le2/(Ec*Ie)
R(dl) = Mcr/MdIe(dl) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Md*le2/(Ec*Ie)
le/360
Msus = Mdl+SL*Mll
R(sus) = Mcr/MsusIe(sus) = R3*Ig+(1-R3)*Icr
δ = K*5/48*Msus*le2/(Ec*Ie)
λΔ = ξ / (1+50*ρ')
ρ' = As_t/(b*d)
Toatl deflection = λΔ*sus deflection + ll deflection
Allowable deflection = le/240
Made Date Sheet
A.rahman 13/7/2011 9:00:00 1
Check Date Rev.
ZA 13/7/2011 9:00:00 0
PROJECT TITLE: Minhal Crown Plaza
LOCATION: Riyadh
DESIGN OFRamp(1)
Geometrical Properties Material Properties
Span = le = 4.923 m 24
End cond'n:Simple(1),cont(2) 1 m 35
Long term defln coeff " k " 1 m 420Moment coeff 0.125 m Clear cover to concrete 35 mmWidth of Slab "b" 1000 mm Flexure strength reduction factor 0.9Thickness of slab "t" 250 mm Shear strength reduction factor 0.75Eff. Depth "d" 214 Modulus of Elasticity of steel "Es" 2E+05
Loading Modulus of Elasticity of concrete "Ec" 27806
Self Weight of slab 6 Modular Ratio "n = Es/Ec" 7.19Floor Finish 0.5 Provided Reinforcement
Wall load 0 0 Φ 20 mm6.5 Bottom layer Nos. 6 Φ 14 mm
Live load 5 011.5 923.75
15.8CalculationsShear Vu = wu*le/2 = 38.892 kNm
47.87 kNm
Check for Section capacity
13.04 mm72.44699038 kNm OK > Mu 47.87 kNm
Shear requirements161.4202369 kN OK > Vu 38.892 kN
Serviceability requirements
45 mm0.150504115
03.645363251 mm
2.940E+08
Calculate Gross moment of inertia
Area of slab A = t*b 250000Depth of neutral axis "y" 125 mm
125 mm1.302E+09
3.6738.21 kNm
Weight of reinforced concrete "γrc" kN/m3
Strength of concrete "fc" N/mm2
Strength of steel "fy" N/mm2
N/mm2
N/mm2
kN/m2
kN/m2
kN/m2 Top layer Nos.Total dead Load "Udl" kN/m2
kN/m2 Area of Top steel "As_t" mm2
Total service Load "tsl" kN/m2 Area of Bottom steel "As_b" mm2
Total Ultimate Load "wu" kN/m3
Moment Mu = cx*wu*le2
Depth of comp. block "a"= As_b*fy/(0.85*f'c*b)Section capacity ΦMn = Φ*As_b*fy*(d-a/2)
Shear capacity ΦVc = Φ*0.17*√f'c*b*d
d' = c+db/2B = b/(n*As_b)
r = (n-1)*As_t/(n*As_b)kd = (√(2*d*B(1+r*d'/d)+(1+r)2)-(1+r))/BIcr = bkd3/3+n*As_b*(d-kd)2+(n-1)*As_t*(kd-d')2 mm4
mm2
Distance of top fiber from N.A "yt"Gross moment of inertia "Ig" mm4
Allowable stress fr = 0.62√f'c N/mm2
Crqacking moment Mcr = fr*Ig/yt
Made Date Sheet
A.rahman 13-7-2011 2
Check Date Rev.
ZA 13-7-2011 0
PROJECT TITLE: MOI
LOCATION: Makkah-Taif
DESIGN OF ONE WAY SLAB
Service moments
19.69 kNm
Moment due to live load "Mll" 15.15 kNm
34.84 kNm
Deflection due to dead + live loads
1.0971.302E+09
2.43 mm
Deflection due to dead load
1.9401.302E+09 <= Ig
1.37 mm
Deflection due to live load
Live load deflection = dl+ll deflection - dl deflection1.06 mm
Allowable immediate deflection due to Live load =per ACI 318 Tab 9.5b 13.68 mm > 1.06 mm OK
Long term deflection
% of liveload sustained "SL" 50 %27.27 kNm
1.4011.302E+09 <=Ig
1.90 mm
Magnification factor for creep and shrinkage2.000
Where:-ξ = 2 for 5 years cl.9.5.2.5 ACI 318
0.00000
4.859 mm
20.5125 mm > 4.86 mm O.K
Moment due to dead load "Mdl"
Total Moment Ms = Mdl+Mll
R(dl+ll) = Mcr/MsIe(dl+ll) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Ms*le2/(Ec*Ie)
R(dl) = Mcr/MdIe(dl) = R3*Ig+(1-R3)*Icr mm4
δ = K*5/48*Md*le2/(Ec*Ie)
le/360
Msus = Mdl+SL*Mll
R(sus) = Mcr/MsusIe(sus) = R3*Ig+(1-R3)*Icr
δ = K*5/48*Msus*le2/(Ec*Ie)
λΔ = ξ / (1+50*ρ')
ρ' = As_t/(b*d)
Toatl deflection = λΔ*sus deflection + ll deflection
Allowable deflection = le/240