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7/23/2019 Elementos a Traccion
1/10
1
.
.
. M
. E , ,
,
.
.
.
L , N ,
. (14.4 CENIN 1618)
E L
)
0,0
= . ; 0,90. . )
0,
= . ; 0,75. .
+
C
L
) C
) F
7/23/2019 Elementos a Traccion
2/10
2
.
, .
.. .E , A,
,
. E
. (7.1 CENIN 1618)
.. .
E , A,
,
. (7.2 CENIN 1618)
= . ; = # = #. .
H 6 =1/2.
120
6
= +3 ( )
=+1,6 ( )
= ( )
7/23/2019 Elementos a Traccion
3/10
3
.
.
C
, .
A , ,
IGAG .
. E
. , ()
() .
1( A,B,C,D)
1= 2+
4.
2( E,F,G)
2= #
N: .
B
C
D
E
F
G
7/23/2019 Elementos a Traccion
4/10
4
.
H 6 =5/8.
A
B
C
D
E
25
25
25
25
145
30 25
7/23/2019 Elementos a Traccion
5/10
5
.
.
E .
E
. L
,
CENIN 1618
C
,
, , A = A. (7.3.1 CENIN 1618)
C ,
, A, ,
, A (7.3.2 CENIN 1618)
C A
=
C
=
F
= 1 0,90
E= ()
L=
)
E 2/3
,
3
.................................................................................................. A = 0.90.
) E ,
,
, 3
.................................................. A = 0.85.
)
E
............................................................................................................ A = 0.75.
7/23/2019 Elementos a Traccion
6/10
6
.
D L 12012012
=5/8.75 75
7/23/2019 Elementos a Traccion
7/10
7
.
C . N:
A36.
7/23/2019 Elementos a Traccion
8/10
8
.
.
E
. E
, .
L
21 14.3 1618.
L ,
:
)
C F A 0.6 F A ,
.
= 0.6 + )
C 0.6 F A > F A,
.
= 0.6 +
A=*B
A=*L
AN=A4,5().
AN=A0,5().
B
L
AN= N .
A=
AN= N C
A= C
7/23/2019 Elementos a Traccion
9/10
9
.
7/8 . C
F=3510/2 F=4915/2 =3,1.
18
6
3,1
70 7040
60
172
60
7/23/2019 Elementos a Traccion
10/10
10
.
.
=
300
.
A 1,
40 . E AE25
80 8030
40