DESIGN OF STEEL PURLINS REFERENCE: Structureal Steel Design Design ASD et!"# $% $% &.C.cC"r'ac &.C.cC"r'ac NSCP ())1* Fi+t! E#iti"n *ASEP Steel ,an#$""- 1994
INPUT DATA: F%
= 248.00 MPa
ini'u' iel# Stress "+ Steel in /a
Fu
= 400.00 MPa
ini'u' 0ensile Stress "+ Steel in
E
= 200,000 MPa
"#ulus "+ Elasticit%
= 2.07 m
S/an engt! "+ Purlins* '
S
= 0.80 m
S/acing "+ Purlins* '
b ns
= 11.00 deg
R""+ Angle* #egrees
= 0.00
n". "+ sagr"#s in "ne s/an
2D
= 0.48 Pa
Dea# "a# in -Pa
2
= 0.!0 Pa
ie "a# in -Pa
2i
= 0.00 Pa
7n2ar# in# "a# N"r'al t" R""+ in -
2"
= 1.7" Pa
ut2ar# in# "a# N"r'al t" R""+ in
SE#TION PROPERTIES:
L# 7$%&8%1$%2.0
N'(e: I)*+( I)*+( Se(-') Se(-') P'*e(-e/ P'*e(-e/ -) (e 'm L#3%%# L#3%%#%T %T /
).)(53 -N'
eig!t "+ Purlins
#
;5.)) ''
er
$+
38.)) ''
i#t! "+ Flange
t+
(.)) ''
0!ic-ness "+ Flange
7x
(.8(E=)5 ''>4
"'ent "+ 7nertia a$"ut t!e a?"r Ax
Sx
;.5)E=)3 ''>3
Secti"n "#ulus a$"ut t!e a?"r Axis
S%
(.8)E=)3 ''>3
Secti"n "#ulus a$"ut t!e in"r Axis
Se(-') Ade5+a(e LOAD ANAL6SIS: N'ma L'ad/ 9%: 9%:
Ta)ge)(-a L'ad/ L'ad/ 9;:
/
).)(5 -N'
/
).))5 -N'
D
).3;; -N'
D
).);3 -N'
).4;1 -N'
).)9( -N'
i
).))) -N'
"
1.43( -N'
Ma%. Ta)ge)(-a Rea(-')/ Rea(-')/ R;: R/
).))5 -N
RD
).);6 -N
R
).)95 -N
R0
).1;6 -N
3648 91655 .xls
1
P1
Ma%. N'ma M'me)(/ M%:
Ma%.Ta)ge)(-a M'me)(/ M;:
D
).(15 -N'
D
).)4( -N'
).(5( -N'
).)49 -N'
i
).))) -N'
"
).;6; -N'
L'ad #'m<-)a(-')/: N'ma M'me)(/ M%:
De/-g) M'me)(/: N'ma M'me)(/ M%:
D=
).468 -N'
x
).468 -N'
).;5D==i
).351 -N'
0angential "'ents %:
).;5D<l"
).414 -N'
%/
).)91 -N'
Ta)ge)(-a M'me)(/ M;: D=
364891655.xls
).)91 -N'
(
P1
A#TUAL STRESSES: +$x
6(.34 Pa
xSx
+
%$ 3(.46 Pa
%S%
ALLO9ALE STRESSES: F$x
163.68 Pa
See NSCP 5)6.(5)6.3
F
%$ 186.)) Pa
See A7SC anual F1F(
#APA#IT6 #3E#:
+$xF$x = +$%F$%
Ca/.Rati ).555
Se(-') Ade5+a(e
#3E# DEFLE#TION: L->e L'ad Dee(-'): Dall 11.5) '' Dact (.)) ''
18) 54@384E7x
?= a'@a<e, Se(-') Ade5+a(e T'(a L'ad Dee(-'): Dall 11.5) '' Dact 3.;) ''
18) 5D=4@384E7x
Se(-') Ade5+a(e SAGRODS: AreB#
1.33 sB. ''
R0@).33Fu
U/e 10 mm d-a. /ag'd/
364891655.xls
3
P1
DESIGN OF STEEL PURLINS REFERENCE: Structureal Steel Design ASD et!"# $% &.C.cC"r'ac NSCP ())1* Fi+t! E#iti"n *ASEP Steel ,an#$""- 1994
INPUT DATA: F%
= 248.00 MPa
ini'u' iel# Stress "+ Steel in /a
Fu
= 400.00 MPa
ini'u' 0ensile Stress "+ Steel in
E
= 200,000 MPa
"#ulus "+ Elasticit%
= 7.00 m
S/an engt! "+ Purlins* '
S
= 1.00 m
S/acing "+ Purlins* '
b ns
= 1.72 deg
R""+ Angle* #egrees
= 2.00
n". "+ sagr"#s in "ne s/an
2D
= 0.!0 Pa
Dea# "a# in -Pa
2
= 0.!0 Pa
ie "a# in -Pa
2i
= 0.00 Pa
7n2ar# in# "a# N"r'al t" R""+ in -
2"
= 1.21 Pa
ut2ar# in# "a# N"r'al t" R""+ in
SE#TION PROPERTIES:
L# 200%7$%20%2.$
N'(e: I)*+( Se(-') P'*e(-e/ -) (e 'm L#3%%#%T ASE /
).);11 -N'
eig!t "+ Purlins
#
()).)) ''
er
$+
;5.)) ''
i#t! "+ Flange
t+
(.5) ''
0!ic-ness "+ Flange
7x
5.6(E=)6 ''>4
"'ent "+ 7nertia a$"ut t!e a?"r Ax
Sx
5.6(E=)4 ''>3
Secti"n "#ulus a$"ut t!e a?"r Axis
S%
1.(5E=)4 ''>3
Secti"n "#ulus a$"ut t!e in"r Axis
Se(-') Ade5+a(e LOAD ANAL6SIS: N'ma L'ad/ 9%:
Ta)ge)(-a L'ad/ 9;:
/
).);1 -N'
/
).))( -N'
D
).6)) -N'
D
).)18 -N'
).6)) -N'
).)18 -N'
i
).))) -N'
"
1.(1) -N'
Ma%. Ta)ge)(-a Rea(-')/ R;: R/
).))5 -N
RD
).)46 -N
R
).)46 -N
R0
).)98 -N
364891655.xls
4
Design "+ Purlins
Ma%. N'ma M'me)(/ M%:
Ma%.Ta)ge)(-a M'me)(/ M;:
D
4.1)9 -N'
D
).)11 -N'
3.6;3 -N'
).)1) -N'
i
).))) -N'
"
;.411 -N'
L'ad #'m<-)a(-')/: N'ma M'me)(/ M%:
De/-g) M'me)(/: N'ma M'me)(/ M%:
D=
;.;8( -N'
x
;.;8( -N'
).;5D==i
5.836 -N'
0angential "'ents %:
).;5D<l"
(.4;; -N'
%/
).)(1 -N'
Ta)ge)(-a M'me)(/ M;: D=
364891655.xls
).)(1 -N'
5
Design "+ Purlins
A#TUAL STRESSES: +$x
138.4; Pa
xSx
+
%$ 1.66 Pa
%S%
ALLO9ALE STRESSES: F$x
148.8) Pa
See NSCP 5)6.(5)6.3
F
%$ 148.8) Pa
See A7SC anual F1F(
#APA#IT6 #3E#:
+$xF$x = +$%F$%
Ca/.Rati ).94(
Se(-') Ade5+a(e
#3E# DEFLE#TION: L->e L'ad Dee(-'): Dall 38.89 '' Dact 16.6; ''
18) 54@384E7x
?= a'@a<e, Se(-') Ade5+a(e T'(a L'ad Dee(-'): Dall 38.89 '' Dact 35.31 ''
18) 5D=4@384E7x
Se(-') Ade5+a(e SAGRODS: AreB#
).;4 sB. ''
R0@).33Fu
U/e 10 mm d-a. /ag'd/
364891655.xls
6
Design "+ Purlins
