Embed Size (px)
DESCRIPTION
Visitwww.abqconsultants.comThis program Designs andOptimises Cantilever RCC Beams.Programmed by:-A B [email protected]@gmail.com99590102109959010211
Citation preview
Sheet :
Cont'd :
Design of Cantilever Rcc Beam for flexure and shear as per ACI 318-95 code.
Section PropertiesSection PropertiesSection PropertiesSection Properties
cover =
L
% d1
% W
d1
dist -d1- and slab layout
Beam Section.
Wu
Prepared by : Date :
Job No. :
Verified by :
Revision Notes :
Project :
Subject :
Calculation sheet
Floor Level:Floor Level:Floor Level:Floor Level: GroundGroundGroundGround B= 700 mm 27.56 in fc = 20 mpa 2901 psi
in Ec= 21167 mpa 3069943 psi
f y = 410 mpaBeam No. :Beam No. :Beam No. :Beam No. : B601B601B601B601 D= 2000 mm 78.74 in 59465 psi
4.6667E+07 cm4
LOAD DATALOAD DATALOAD DATALOAD DATAdist d1 dist d1 dist d1 dist d1
(m)(m)(m)(m)
R! (Kn) R! (Kn) R! (Kn) R! (Kn)
maxmaxmaxmaxM (kn.m)
def lection def lection def lection def lection
mmmmmmmm
beta1 = 0.850
pb min =
deff= 1950 mm 76.77 in Iz=
0.336
LOADINGLOADINGLOADINGLOADING UNIFORM LOADUNIFORM LOADUNIFORM LOADUNIFORM LOAD 50 mm 1.97
Own Wt.Own Wt.Own Wt.Own Wt. 35.00 Kn/m 427 2604.70 9.81 pb max = 1.570
4.28 Top Reinf.
Slab Left - dlSlab Left - dlSlab Left - dlSlab Left - dl 5.00 Kn/m2 6.10 186.05 1134.91 4.28
Slab Right- dlSlab Right- dlSlab Right- dlSlab Right- dl 5.00 Kn/m2 6.10 186.05 1134.91
1.68
Total - dead loadTotal - dead loadTotal - dead loadTotal - dead load 872.30 5321.03 20.04
Wall Wt.-dlWall Wt.-dlWall Wt.-dlWall Wt.-dl 6.00 Kn/m 73.2 446.52
Pd - Conc DLPd - Conc DLPd - Conc DLPd - Conc DL 10.00 Kn 10.00 50.00
stirrups
WL -LL over slab area WL -LL over slab area WL -LL over slab area WL -LL over slab area 5.00 Kn/m2 372.10 2269.81 8.55 D
0.13 Bottom
1884.79 11463.12 B
Total (service)Total (service)Total (service)Total (service) 1264.40 7690.84 28.86
ultimate Ru, Muultimate Ru, Muultimate Ru, Muultimate Ru, Mu
Pl - Conc LLPl - Conc LLPl - Conc LLPl - Conc LL 10.00 Kn 10.00 50.00 0.13 Reinf.
span (L)span (L)span (L)span (L) 12.20 mdeflection
dl 20.18
aaaa 5.00 m ll
b
Bar Dia. (assumed)Bar Dia. (assumed)Bar Dia. (assumed)Bar Dia. (assumed) 32 mm ratio dl+ll 423 >120 Ok
8.68 Pu
bbbb 7.20 m ratio dl 605 >180 Ok a
d1
Visit
www.abqconsultants.com
This program Designs and
Optimises Cantilever RCC Beams.
Programmed by
:-
A B Quadri
www.abqconsultants.com
9959010210
9959010211
Design of Beam :
DL + LL (9.2.1-eq 9-2)
= L = m
= % Cantilever Loading DiagramCantilever Loading DiagramCantilever Loading DiagramCantilever Loading Diagram
= (top reinforcement)
mm dia bar
=
Shear :
= Ru (kn) = kn.m
= Rdl (kn) =
(Aci-08 - 9.3.2.3) Rll (kn) =
=
= Vn - Vc = =
Ø Leg @
=
= =
mimimum reinforcement.mimimum reinforcement.mimimum reinforcement.mimimum reinforcement.
then provide minimum reinforcement.
.: Ø Leg @
= =
12.20
pb 0.01405 = 1.405 ok
Flexure : Ultimate load = 1.4 1.7
As 19181 mm2
Provide 32 nos 32
Mu 11463.12 Kn.m
Vu 1884.79 kn 1884.79 Mu =
As 25736 > 19181 mm2 ok
11463.12
Vn Vu=
2513.05 kn ok 882.30
Vc 1013.76 kn
Vs 1499.29 kn
Moment DiagramMoment DiagramMoment DiagramMoment Diagram0.75 382.10
maximum allowed spacing S 1950 mm
Provide 10 5 200 mm c/c spacing ok
ok
Av provided 393 mm2 > Avmin 118 mm2 ok
Vs provided 1569.81 kn > 1499.29 kn
If in a section where Vn < Vc = 1013.76 kn
Provide 10 2 180 mm c/c
Prep By : A B Quadri- Abq Consultants - 9959010210 - [email protected]/2 Royal Residency, Besides Amba talkies, Mehdipatnam , Hyderabad-India. 500028-www.abqconsultants.com
spacing ok
Av provided 157 mm2 > Avmin 118 mm2 ok
Visit
www.abqconsultants.com
This program Designs and
Optimises Cantilever RCC Beams.
Programmed by
:-
A B Quadri
www.abqconsultants.com
9959010210
9959010211
