Rade Raonić - Otpornost materijala - Primer 2
6
35 kN F , 60 , 1 kN/m q , 7 10 10 Pa d , 1 3 m l , 2 1 m l .
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theory of elasticity; strength of materials; solid mechanics; otpornost materijala; elastičnost; čvrstoća;
Transcript of Rade Raonić - Otpornost materijala - Primer 2
35 kNF ,
60 ,
1 kN/mq ,
710 10 Pad ,
1 3 ml ,
2 1 ml .
35 kNF ,
60 ,
1 kN/mq ,
710 10 Pad ,
1 3 ml ,
2 1 ml .
I
cos 60 17,5 kNAX F ,
sin 60 30,45 kNAY F , 1 45 kNqF q l ,
2
10i
iX
0AX X 17,5 kNAX X , 4
10i
iY
0A q BY F F Y 75,45A B qY F F Y , 3
1( ) 0iA
iM F
1,5 3 4 0q BF F Y
1,5 43
qB
F YF
63,1 kNBF ,
75, 45A BY F 63,1 75, 45AY 12,35 kNAY ,
2 2A A AF X Y 2 217,5 12,35AF 21, 42 kNAF .
II
0SA SCM M ,
2( ) 12,35 7,5
2S A B AxM Y x q x x x ,
1 11,5 1,65 kNm2 4SD Al lM Y q ,
1( ) 1 1( ) ( ) 30,45 121,8
2S B C A BlM Y x q l x F x l x ,
max. 30, 45 kNmS SM M .
III
Sx
d
MW
3
6xaW ,
3
6S
d
Ma
,
6 S
d
Ma
,
3
7
6 30, 45 1010 10
a
,
31,827 10a , 11, 222 10 ma ,
122, 2 mma
125 mma (JUS C.B3.024).
IV
d
S
x
MW
,
3 33 9 3125 325520,83 mm 325520,83 10 m
6 6xaW ,
33 9 7
9
30,45 10 0,00009354 10 10 9,354 10 Pa325520,83 10
,
7 79,354 10 Pa 10 10 Pa ,
d .
